kbolt 0.1.8

pub mod args;

use std::collections::HashMap;
use std::path::Path;

use kbolt_core::engine::Engine;
use kbolt_core::Result;
use kbolt_types::{
    ActiveSpaceSource, AddCollectionRequest, AddCollectionResult, AddScheduleRequest, ChunkLocator,
    ChunkResponse, CollectionInfo, DoctorCheck, DoctorCheckStatus, DoctorReport, DoctorSetupStatus,
    DocumentResponse, EvalImportReport, EvalRunReport, FileEntry, GetChunkRequest, GetRequest,
    InitialIndexingBlock, InitialIndexingOutcome, KboltError, LocalAction, LocalReport, Locator,
    ModelInfo, MultiGetItem, MultiGetItemKind, MultiGetRequest, MultiGetResponse, OmitReason,
    ReadLocator, RemoveScheduleRequest, RemoveScheduleSelector, ScheduleAddResponse,
    ScheduleBackend, ScheduleInterval, ScheduleIntervalUnit, ScheduleRunResult, ScheduleScope,
    ScheduleState, ScheduleStatusResponse, ScheduleTrigger, ScheduleWeekday, SearchEmptyReason,
    SearchMode, SearchPipeline, SearchPipelineNotice, SearchPipelineStep,
    SearchPipelineUnavailableReason, SearchRequest, StatusResponse, UpdateDecision,
    UpdateDecisionKind, UpdateOptions, UpdateReport,
};

pub struct CliAdapter {
    pub engine: Engine,
    color: bool,
}

pub struct CliSearchOptions<'a> {
    pub space: Option<&'a str>,
    pub query: &'a str,
    pub collections: &'a [String],
    pub limit: usize,
    pub min_score: f32,
    pub deep: bool,
    pub keyword: bool,
    pub semantic: bool,
    pub rerank: bool,
    pub no_rerank: bool,
    pub debug: bool,
}

pub struct CliGetOptions<'a> {
    pub space: Option<&'a str>,
    pub identifier: &'a str,
    pub offset: Option<usize>,
    pub limit: Option<usize>,
}

struct GroupedSearchResult<'a> {
    primary: &'a kbolt_types::SearchResult,
    additional_matches: Vec<&'a kbolt_types::SearchResult>,
}

const ADDITIONAL_MATCHES_SHOWN: usize = 3;

#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum CliStyle {
    Title,
    Label,
    Chrome,
    Section,
    Identity,
    Action,
    Warning,
    Error,
}

impl CliStyle {
    #[cfg(test)]
    const ALL: [Self; 8] = [
        Self::Title,
        Self::Label,
        Self::Chrome,
        Self::Section,
        Self::Identity,
        Self::Action,
        Self::Warning,
        Self::Error,
    ];
}

impl CliAdapter {
    pub fn new(engine: Engine) -> Self {
        Self {
            engine,
            color: false,
        }
    }

    pub fn with_color(mut self, color: bool) -> Self {
        self.color = color;
        self
    }

    pub fn space_add(
        &mut self,
        name: &str,
        description: Option<&str>,
        strict: bool,
        dirs: &[std::path::PathBuf],
    ) -> Result<String> {
        let color = self.color;
        if strict {
            use std::collections::HashSet;

            let mut validation_errors = Vec::new();
            let mut derived_names = HashSet::new();
            for dir in dirs {
                if !dir.is_absolute() || !dir.is_dir() {
                    validation_errors.push(format!("- {} -> invalid path", dir.display()));
                    continue;
                }

                let collection_name = dir.file_name().and_then(|item| item.to_str());
                match collection_name {
                    Some(name) => {
                        if !derived_names.insert(name.to_string()) {
                            validation_errors.push(format!(
                                "- {} -> duplicate derived collection name '{name}'",
                                dir.display()
                            ));
                        }
                    }
                    None => validation_errors.push(format!(
                        "- {} -> cannot derive collection name from path",
                        dir.display()
                    )),
                }
            }

            if !validation_errors.is_empty() {
                let mut lines = Vec::new();
                lines.push("strict mode aborted: one or more directories are invalid".to_string());
                lines.extend(validation_errors);
                return Err(kbolt_types::KboltError::InvalidInput(lines.join("\n")).into());
            }
        }

        let added = self.engine.add_space(name, description)?;
        if dirs.is_empty() {
            let mut lines = vec![format_space_add_response(&added.name, color)];
            if let Some(description) = added
                .description
                .as_deref()
                .map(str::trim)
                .filter(|description| !description.is_empty())
            {
                push_field_color(&mut lines, "description", description, color);
            }
            return Ok(lines.join("\n"));
        }

        let mut successes = Vec::new();
        let mut failures = Vec::new();
        for dir in dirs {
            let collection_name = dir
                .file_name()
                .and_then(|item| item.to_str())
                .map(ToString::to_string);

            let result = self.engine.add_collection(AddCollectionRequest {
                path: dir.clone(),
                space: Some(name.to_string()),
                name: collection_name,
                description: None,
                extensions: None,
                no_index: true,
            });

            match result {
                Ok(info) => successes.push(format!(
                    "{} -> {}/{}",
                    dir.display(),
                    info.collection.space,
                    info.collection.name
                )),
                Err(err) => {
                    if strict {
                        let rollback_result = self.engine.remove_space(name);
                        return match rollback_result {
                            Ok(()) => Err(err),
                            Err(rollback_err) => Err(kbolt_types::KboltError::Internal(format!(
                                "strict mode rollback failed: add error: {err}; rollback error: {rollback_err}"
                            ))
                            .into()),
                        };
                    }
                    failures.push(format!("{} -> {}", dir.display(), err));
                }
            }
        }

        let mut lines = Vec::new();
        lines.push(format_space_add_response(&added.name, color));
        if let Some(description) = added
            .description
            .as_deref()
            .map(str::trim)
            .filter(|description| !description.is_empty())
        {
            push_field_color(&mut lines, "description", description, color);
        }
        push_section_color(&mut lines, "collections", color);
        push_bullet_color(&mut lines, format!("{} registered", successes.len()), color);
        for success in successes {
            push_bullet_color(&mut lines, success, color);
        }
        if !failures.is_empty() {
            push_section_color(&mut lines, "failed", color);
            push_bullet_color(
                &mut lines,
                format!("{} collection(s)", failures.len()),
                color,
            );
            for failure in failures {
                push_bullet_color(&mut lines, failure, color);
            }
        }
        push_section_color(&mut lines, "indexing", color);
        push_warning_bullet_color(&mut lines, "skipped (collections registered only)", color);
        push_section_color(&mut lines, "next", color);
        push_action_bullet_color(
            &mut lines,
            format!("kbolt --space {} update", shell_quote_arg(&added.name)),
            color,
        );

        Ok(lines.join("\n"))
    }

    pub fn space_describe(&self, name: &str, text: &str) -> Result<String> {
        self.engine.describe_space(name, text)?;
        Ok(format_space_describe_response(name, self.color))
    }

    pub fn space_rename(&mut self, old: &str, new: &str) -> Result<String> {
        self.engine.rename_space(old, new)?;
        Ok(format_space_rename_response(old, new, self.color))
    }

    pub fn space_remove(&mut self, name: &str) -> Result<String> {
        self.engine.remove_space(name)?;
        if name == "default" {
            return Ok(format_space_remove_default_response(self.color));
        }
        Ok(format_space_remove_response(name, self.color))
    }

    pub fn space_default(&mut self, name: Option<&str>) -> Result<String> {
        if let Some(space_name) = name {
            let updated = self.engine.set_default_space(Some(space_name))?;
            let value = updated.unwrap_or_default();
            return Ok(format_space_default_response(Some(&value), self.color));
        }

        let current = self.engine.config().default_space.as_deref();
        Ok(format_space_default_response(current, self.color))
    }

    pub fn space_current(&self, explicit: Option<&str>) -> Result<String> {
        let active = self.engine.current_space(explicit)?;
        let output = match active {
            Some(active) => {
                let source = match active.source {
                    ActiveSpaceSource::Flag => "flag",
                    ActiveSpaceSource::EnvVar => "env",
                    ActiveSpaceSource::ConfigDefault => "default",
                };
                format_space_current_response(Some((&active.name, source)), self.color)
            }
            None => format_space_current_response(None, self.color),
        };
        Ok(output)
    }

    pub fn space_list(&self) -> Result<String> {
        let spaces = self.engine.list_spaces()?;
        let mut lines = Vec::with_capacity(spaces.len() + 1);
        push_section_color(&mut lines, "spaces", self.color);
        if spaces.is_empty() {
            push_bullet_color(&mut lines, "none", self.color);
            return Ok(lines.join("\n"));
        }

        for space in spaces {
            let description = space.description.unwrap_or_default();
            push_bullet_color(
                &mut lines,
                format!(
                    "{}: {} collection(s), {} document(s), {} chunk(s)",
                    space.name, space.collection_count, space.document_count, space.chunk_count
                ),
                self.color,
            );
            if !description.is_empty() {
                push_field_color(&mut lines, "description", description, self.color);
            }
        }
        Ok(lines.join("\n"))
    }

    pub fn space_info(&self, name: &str) -> Result<String> {
        let space = self.engine.space_info(name)?;
        let mut lines = vec![format!("space: {}", space.name)];
        if let Some(description) = space
            .description
            .as_deref()
            .map(str::trim)
            .filter(|description| !description.is_empty())
        {
            push_field_color(&mut lines, "description", description, self.color);
        }
        push_section_color(&mut lines, "contents", self.color);
        push_bullet_color(
            &mut lines,
            format!("{} collection(s)", space.collection_count),
            self.color,
        );
        push_bullet_color(
            &mut lines,
            format!("{} document(s)", space.document_count),
            self.color,
        );
        push_bullet_color(
            &mut lines,
            format!("{} chunk(s)", space.chunk_count),
            self.color,
        );
        push_section_color(&mut lines, "timestamps", self.color);
        push_bullet_color(&mut lines, format!("created {}", space.created), self.color);
        Ok(lines.join("\n"))
    }

    pub fn collection_list(&self, space: Option<&str>) -> Result<String> {
        let collections = self.engine.list_collections(space)?;
        let mut lines = Vec::with_capacity(collections.len() + 1);
        push_section_color(&mut lines, "collections", self.color);
        if collections.is_empty() {
            push_bullet_color(&mut lines, "none", self.color);
            return Ok(lines.join("\n"));
        }

        for collection in collections {
            push_bullet_color(
                &mut lines,
                format!(
                    "{}/{} ({})",
                    collection.space,
                    collection.name,
                    collection.path.display()
                ),
                self.color,
            );
        }
        Ok(lines.join("\n"))
    }

    pub fn collection_add(
        &self,
        space: Option<&str>,
        path: &std::path::Path,
        name: Option<&str>,
        description: Option<&str>,
        extensions: Option<&[String]>,
        no_index: bool,
    ) -> Result<String> {
        let added = self.engine.add_collection(AddCollectionRequest {
            path: path.to_path_buf(),
            space: space.map(ToString::to_string),
            name: name.map(ToString::to_string),
            description: description.map(ToString::to_string),
            extensions: extensions.map(|items| items.to_vec()),
            no_index,
        })?;

        Ok(format_collection_add_result_color(&added, self.color))
    }

    pub fn collection_info(&self, space: Option<&str>, name: &str) -> Result<String> {
        let collection = self.engine.collection_info(space, name)?;

        Ok(format_collection_info_color(&collection, self.color))
    }

    pub fn collection_describe(
        &self,
        space: Option<&str>,
        name: &str,
        text: &str,
    ) -> Result<String> {
        self.engine.describe_collection(space, name, text)?;
        Ok(format_collection_describe_response(name, self.color))
    }

    pub fn collection_rename(&self, space: Option<&str>, old: &str, new: &str) -> Result<String> {
        self.engine.rename_collection(space, old, new)?;
        Ok(format_collection_rename_response(old, new, self.color))
    }

    pub fn collection_remove(&self, space: Option<&str>, name: &str) -> Result<String> {
        let collection = self.engine.collection_info(space, name)?;
        self.engine.remove_collection(space, name)?;
        Ok(format_collection_remove_response(
            &collection.space,
            name,
            self.color,
        ))
    }

    pub fn ignore_show(&self, space: Option<&str>, collection: &str) -> Result<String> {
        let (resolved_space, content) = self.engine.read_collection_ignore(space, collection)?;
        let mut lines = vec![format!("ignore: {resolved_space}/{collection}")];
        push_section_color(&mut lines, "contents", self.color);
        if let Some(content) = content {
            append_ignore_content_lines(&mut lines, &content);
        } else {
            push_bullet_color(&mut lines, "none", self.color);
        }
        Ok(lines.join("\n"))
    }

    pub fn ignore_add(
        &self,
        space: Option<&str>,
        collection: &str,
        pattern: &str,
    ) -> Result<String> {
        let (resolved_space, normalized_pattern) = self
            .engine
            .add_collection_ignore_pattern(space, collection, pattern)?;
        let mut lines = vec![format!("ignore updated: {resolved_space}/{collection}")];
        push_section_color(&mut lines, "added", self.color);
        push_bullet_color(&mut lines, normalized_pattern, self.color);
        Ok(lines.join("\n"))
    }

    pub fn ignore_remove(
        &self,
        space: Option<&str>,
        collection: &str,
        pattern: &str,
    ) -> Result<String> {
        let (resolved_space, removed_count) = self
            .engine
            .remove_collection_ignore_pattern(space, collection, pattern)?;
        if removed_count == 0 {
            let mut lines = vec![format!("ignore unchanged: {resolved_space}/{collection}")];
            push_section_color(&mut lines, "missing", self.color);
            push_bullet_color(&mut lines, pattern, self.color);
            return Ok(lines.join("\n"));
        }

        let mut lines = vec![format!("ignore updated: {resolved_space}/{collection}")];
        push_section_color(&mut lines, "removed", self.color);
        push_bullet_color(&mut lines, pattern, self.color);
        push_section_color(&mut lines, "matches", self.color);
        push_bullet_color(&mut lines, removed_count, self.color);
        Ok(lines.join("\n"))
    }

    pub fn ignore_list(&self, space: Option<&str>) -> Result<String> {
        let entries = self.engine.list_collection_ignores(space)?;
        let mut lines = Vec::new();
        push_section_color(&mut lines, "ignore files", self.color);
        if entries.is_empty() {
            push_bullet_color(&mut lines, "none", self.color);
            return Ok(lines.join("\n"));
        }

        for entry in entries {
            push_bullet_color(
                &mut lines,
                format!(
                    "{}/{}: {} pattern(s)",
                    entry.space, entry.collection, entry.pattern_count
                ),
                self.color,
            );
        }

        Ok(lines.join("\n"))
    }

    pub fn ignore_edit(&self, space: Option<&str>, collection: &str) -> Result<String> {
        let (resolved_space, path) = self
            .engine
            .prepare_collection_ignore_edit(space, collection)?;
        let editor_command = resolve_editor_command()?;

        let mut process = std::process::Command::new(&editor_command[0]);
        if editor_command.len() > 1 {
            process.args(&editor_command[1..]);
        }
        process.arg(&path);

        let status = process.status().map_err(|err| {
            KboltError::Internal(format!(
                "failed to launch editor '{}': {err}",
                editor_command[0]
            ))
        })?;
        if !status.success() {
            return Err(
                KboltError::Internal(format!("editor exited with status: {status}")).into(),
            );
        }

        let mut lines = vec![format!("ignore updated: {resolved_space}/{collection}")];
        push_field_color(&mut lines, "path", path.display(), self.color);
        Ok(lines.join("\n"))
    }

    pub fn models_list(&self) -> Result<String> {
        let status = self.engine.model_status()?;
        Ok(format_models_list_color(&status, self.color))
    }

    pub fn eval_run(&self, eval_file: Option<&Path>) -> Result<String> {
        let report = self.engine.run_eval(eval_file)?;
        Ok(format_eval_run_report_color(&report, self.color))
    }

    pub fn search(&self, options: CliSearchOptions<'_>) -> Result<String> {
        let CliSearchOptions {
            space,
            query,
            collections,
            limit,
            min_score,
            deep,
            keyword,
            semantic,
            rerank,
            no_rerank,
            debug,
        } = options;
        let mode_flags = deep as u8 + keyword as u8 + semantic as u8;
        if mode_flags > 1 {
            return Err(KboltError::InvalidInput(
                "only one of --deep, --keyword, or --semantic can be set".to_string(),
            )
            .into());
        }

        let mode = if deep {
            SearchMode::Deep
        } else if keyword {
            SearchMode::Keyword
        } else if semantic {
            SearchMode::Semantic
        } else {
            SearchMode::Auto
        };
        let effective_no_rerank = resolve_no_rerank_for_mode(mode.clone(), rerank, no_rerank);
        let engine_limit = if debug {
            limit
        } else {
            limit.saturating_mul(2)
        };

        let response = self.engine.search(SearchRequest {
            query: query.to_string(),
            mode,
            space: space.map(ToString::to_string),
            collections: collections.to_vec(),
            limit: engine_limit,
            min_score,
            no_rerank: effective_no_rerank,
            debug,
        })?;

        let color = self.color && !debug;
        let mut lines = Vec::new();

        if debug {
            push_section(&mut lines, "debug");
            push_field(&mut lines, "query", &response.query);
            push_field(
                &mut lines,
                "mode",
                format!(
                    "{} -> {}",
                    format_search_mode(&response.requested_mode),
                    format_search_mode(&response.effective_mode)
                ),
            );
            push_field(
                &mut lines,
                "pipeline",
                format_search_pipeline(&response.pipeline),
            );
            push_field(&mut lines, "result count", response.results.len());
            for notice in &response.pipeline.notices {
                push_field(&mut lines, "note", format_search_pipeline_notice(notice));
            }
        }

        if debug {
            push_section(&mut lines, "results");
            if response.results.is_empty() {
                push_bullet(&mut lines, "none");
            }

            for item in &response.results {
                push_bullet(&mut lines, &item.docid);
                push_field(&mut lines, "score", format!("{:.3}", item.score));
                push_field(
                    &mut lines,
                    "path",
                    format_search_result_path(&item.space, &item.path),
                );
                push_field(&mut lines, "chunk", shell_quote_arg(&item.chunk.locator));
                if let Some(heading) = &item.heading {
                    push_field(&mut lines, "heading", heading);
                }
                lines.push("  snippet:".to_string());
                let snippet = truncate_snippet(&item.text, 4);
                for snippet_line in snippet.lines() {
                    lines.push(format!("    {snippet_line}"));
                }
                if let Some(signals) = &item.signals {
                    lines.push("  signals:".to_string());
                    lines.push(format!(
                        "    bm25: {}",
                        format_optional_search_signal(signals.bm25)
                    ));
                    lines.push(format!(
                        "    dense: {}",
                        format_optional_search_signal(signals.dense)
                    ));
                    lines.push(format!(
                        "    fusion: {}",
                        format_search_signal(signals.fusion)
                    ));
                    lines.push(format!(
                        "    reranker: {}",
                        format_optional_search_signal(signals.reranker)
                    ));
                }
            }
        } else {
            let grouped_results = group_search_results(&response.results, limit);
            lines.push(paint_title(
                color,
                format!(
                    "{} document{}",
                    grouped_results.len(),
                    if grouped_results.len() == 1 { "" } else { "s" }
                ),
            ));
            lines.push(format_field(color, "query", &response.query));
            lines.push(format_field(
                color,
                "mode",
                format_search_mode(&response.effective_mode),
            ));

            for (index, item) in grouped_results.iter().enumerate() {
                let locator = self.search_chunk_locator(item.primary)?;
                let read_command = format_chunk_read_command(&item.primary.space, &locator);
                lines.push(String::new());
                lines.push(format!(
                    "{}. {}   {}",
                    index + 1,
                    paint_title(color, &item.primary.title),
                    paint_identity(color, &locator)
                ));
                lines.push(format!(
                    "   {} {}",
                    paint_label(color, "path:"),
                    paint_identity(
                        color,
                        format_search_result_path(&item.primary.space, &item.primary.path),
                    )
                ));
                if let Some(heading) = &item.primary.heading {
                    lines.push(format!("   {} {heading}", paint_label(color, "section:")));
                }
                lines.push(format!(
                    "   {} {}",
                    paint_label(color, "read:"),
                    paint_action(color, read_command)
                ));
                lines.push(String::new());
                let snippet = truncate_snippet(&item.primary.text, 4);
                for snippet_line in snippet.lines() {
                    lines.push(format!("   {snippet_line}"));
                }
                if !item.additional_matches.is_empty() {
                    lines.push(String::new());
                    lines.push(format!(
                        "   {} {} more chunk{}",
                        paint_label(color, "also found:"),
                        item.additional_matches.len(),
                        if item.additional_matches.len() == 1 {
                            ""
                        } else {
                            "s"
                        }
                    ));
                    for matched in item
                        .additional_matches
                        .iter()
                        .take(ADDITIONAL_MATCHES_SHOWN)
                    {
                        lines.push(format!(
                            "   {} {}",
                            paint_chrome(color, "-"),
                            format_additional_match_label(matched)
                        ));
                    }
                    let hidden = item
                        .additional_matches
                        .len()
                        .saturating_sub(ADDITIONAL_MATCHES_SHOWN);
                    if hidden > 0 {
                        lines.push(format!(
                            "   {} +{} more chunk{}",
                            paint_chrome(color, "-"),
                            hidden,
                            if hidden == 1 { "" } else { "s" }
                        ));
                    }
                }
            }
        }

        if response.results.is_empty() {
            if let Some(hint) =
                self.empty_index_hint(space, collections, response.empty_reason.as_ref())
            {
                lines.push(String::new());
                lines.push(hint);
            }
        }

        if let Some(hint) = response.staleness_hint {
            lines.push(String::new());
            if !debug {
                for notice in &response.pipeline.notices {
                    lines.push(format_normal_search_pipeline_notice_color(
                        notice,
                        &response.effective_mode,
                        color,
                    ));
                }
            }
            lines.push(hint);
        }

        if debug {
            push_section(&mut lines, "elapsed");
            push_bullet(&mut lines, format!("{}ms", response.elapsed_ms));
        }

        Ok(lines.join("\n"))
    }

    fn search_chunk_locator(&self, result: &kbolt_types::SearchResult) -> Result<String> {
        self.compact_chunk_locator(
            &result.chunk.locator,
            &result.space,
            &result.docid,
            result.chunk.ordinal,
        )
    }

    fn chunk_response_locator(&self, chunk: &ChunkResponse) -> Result<String> {
        self.compact_chunk_locator(
            &chunk.locator,
            &chunk.space,
            &chunk.docid,
            chunk.chunk_ordinal,
        )
    }

    fn compact_chunk_locator(
        &self,
        full_locator: &str,
        space: &str,
        fallback_docid: &str,
        chunk_ordinal: usize,
    ) -> Result<String> {
        let Some(full_docid) = full_docid_from_chunk_locator(full_locator) else {
            return Ok(format_compact_chunk_locator(fallback_docid, chunk_ordinal));
        };
        let min_len = fallback_docid.trim_start_matches('#').len();
        let docid = self
            .engine
            .shortest_unambiguous_docid_prefix(full_docid, space, min_len)?;
        Ok(format_compact_chunk_locator(&docid, chunk_ordinal))
    }

    fn empty_index_hint(
        &self,
        space: Option<&str>,
        requested: &[String],
        empty_reason: Option<&SearchEmptyReason>,
    ) -> Option<String> {
        let all = self.engine.list_collections(space).ok()?;
        let scoped: Vec<_> = if requested.is_empty() {
            all
        } else {
            all.into_iter()
                .filter(|c| requested.iter().any(|r| r == &c.name))
                .collect()
        };

        // Case 1: no collections in scope — fresh install, or a scoped filter
        // that matched nothing. Suggest adding a collection.
        if scoped.is_empty() {
            let space_arg = shell_quote_arg(space.unwrap_or("default"));
            let mut lines = vec!["no collections registered yet".to_string()];
            push_section_color(&mut lines, "next", self.color);
            push_action_bullet_color(
                &mut lines,
                format!("kbolt --space {space_arg} collection add /path/to/docs"),
                self.color,
            );
            return Some(lines.join("\n"));
        }

        // Case 2: collections exist, but the selected target scope has no
        // active chunks. This is different from a normal no-match search.
        if matches!(empty_reason, Some(SearchEmptyReason::UnindexedScope)) {
            let mut lines = vec!["nothing indexed for this scope".to_string()];
            push_section_color(&mut lines, "next", self.color);
            for command in empty_scope_update_commands(space, requested, &scoped) {
                push_action_bullet_color(&mut lines, command, self.color);
            }
            return Some(lines.join("\n"));
        }

        None
    }

    pub fn update(
        &self,
        space: Option<&str>,
        collections: &[String],
        no_embed: bool,
        dry_run: bool,
        verbose: bool,
    ) -> Result<String> {
        let report = self.engine.update(UpdateOptions {
            space: space.map(ToString::to_string),
            collections: collections.to_vec(),
            no_embed,
            dry_run,
            verbose,
        })?;

        Ok(format_update_report_color(
            &report, verbose, no_embed, self.color,
        ))
    }

    pub fn schedule_add(&self, req: AddScheduleRequest) -> Result<String> {
        let response = self.engine.add_schedule(req)?;
        Ok(format_schedule_add_response_color(&response, self.color))
    }

    pub fn schedule_status(&self) -> Result<String> {
        let response = self.engine.schedule_status()?;
        Ok(format_schedule_status_response_color(&response, self.color))
    }

    pub fn schedule_remove(&self, req: RemoveScheduleRequest) -> Result<String> {
        let selector = req.selector.clone();
        let response = self.engine.remove_schedule(req)?;
        Ok(format_schedule_remove_response_color(
            &selector, &response, self.color,
        ))
    }

    pub fn status(&self, space: Option<&str>) -> Result<String> {
        let status = self.engine.status(space)?;
        let active_space = active_space_name_for_status(&self.engine, space);
        Ok(format_status_response_color(
            &status,
            active_space.as_deref(),
            self.color,
        ))
    }

    pub fn ls(
        &self,
        space: Option<&str>,
        collection: &str,
        prefix: Option<&str>,
        all: bool,
    ) -> Result<String> {
        let mut files = self.engine.list_files(space, collection, prefix)?;
        if !all {
            files.retain(|file| file.active);
        }

        Ok(format_file_list_color(&files, all, self.color))
    }

    pub fn get(&self, options: CliGetOptions<'_>) -> Result<String> {
        let CliGetOptions {
            space,
            identifier,
            offset,
            limit,
        } = options;
        let color = self.color;
        if let Some(locator) = ChunkLocator::parse(identifier)? {
            let chunk = self.engine.get_chunk(GetChunkRequest {
                locator,
                space: space.map(ToString::to_string),
                offset,
                limit,
            })?;
            let display_locator = self.chunk_response_locator(&chunk)?;
            return Ok(format_chunk_response(&chunk, &display_locator, color));
        }

        let document = self.engine.get_document(GetRequest {
            locator: Locator::parse(identifier),
            space: space.map(ToString::to_string),
            offset,
            limit,
        })?;

        Ok(format_document_response(&document, color))
    }

    pub fn multi_get(
        &self,
        space: Option<&str>,
        locators: &[String],
        max_files: usize,
        max_bytes: usize,
    ) -> Result<String> {
        let locators = locators
            .iter()
            .map(|item| ReadLocator::parse(item))
            .collect::<kbolt_types::Result<Vec<_>>>()?;

        let response = self.engine.multi_get(MultiGetRequest {
            locators,
            space: space.map(ToString::to_string),
            max_files,
            max_bytes,
        })?;
        let chunk_display_locators = self.multi_get_chunk_display_locators(&response)?;

        Ok(format_multi_get_response_color_with_chunk_locators(
            &response,
            self.color,
            &chunk_display_locators,
        ))
    }

    fn multi_get_chunk_display_locators(
        &self,
        response: &MultiGetResponse,
    ) -> Result<HashMap<String, String>> {
        let mut locators = HashMap::new();
        for item in &response.items {
            let MultiGetItem::Chunk(chunk) = item else {
                continue;
            };
            locators.insert(chunk.locator.clone(), self.chunk_response_locator(chunk)?);
        }
        for omitted in &response.omitted {
            if omitted.kind != MultiGetItemKind::Chunk {
                continue;
            }
            let Some(locator) = ChunkLocator::parse(&omitted.locator)? else {
                continue;
            };
            locators.insert(
                omitted.locator.clone(),
                self.compact_chunk_locator(
                    &omitted.locator,
                    &omitted.space,
                    &omitted.docid,
                    locator.chunk_ordinal,
                )?,
            );
        }
        Ok(locators)
    }
}

fn empty_scope_update_commands(
    space: Option<&str>,
    requested: &[String],
    scoped: &[CollectionInfo],
) -> Vec<String> {
    if requested.is_empty() {
        return match space {
            Some(space) => vec![format!("kbolt --space {} update", shell_quote_arg(space))],
            None => vec!["kbolt update".to_string()],
        };
    }

    let mut grouped: Vec<(&str, Vec<&str>)> = Vec::new();
    for collection in scoped {
        if let Some((_, names)) = grouped
            .iter_mut()
            .find(|(space_name, _)| *space_name == collection.space.as_str())
        {
            names.push(collection.name.as_str());
        } else {
            grouped.push((collection.space.as_str(), vec![collection.name.as_str()]));
        }
    }

    grouped
        .into_iter()
        .map(|(space_name, collections)| {
            let mut command = format!("kbolt --space {} update", shell_quote_arg(space_name));
            for collection in collections {
                command.push_str(" --collection ");
                command.push_str(&shell_quote_arg(collection));
            }
            command
        })
        .collect()
}

pub fn format_doctor_report(report: &DoctorReport) -> String {
    format_doctor_report_color(report, false)
}

pub fn format_doctor_report_color(report: &DoctorReport, color: bool) -> String {
    let mut lines = Vec::new();

    let failures: Vec<_> = report
        .checks
        .iter()
        .filter(|c| c.status == DoctorCheckStatus::Fail)
        .collect();
    let warnings: Vec<_> = report
        .checks
        .iter()
        .filter(|c| c.status == DoctorCheckStatus::Warn)
        .collect();
    let expected_unindexed_warnings: Vec<_> = warnings
        .iter()
        .filter(|check| is_expected_unindexed_storage_warning(check))
        .collect();

    match report.setup_status {
        DoctorSetupStatus::ConfigMissing => {
            lines.push("kbolt is not set up".to_string());
            push_section_color(&mut lines, "next", color);
            push_action_bullet_color(&mut lines, "kbolt setup local", color);
            return lines.join("\n");
        }
        DoctorSetupStatus::ConfigInvalid => {
            lines.push("kbolt configuration is invalid".to_string());
            push_section_color(&mut lines, "failures", color);
            for check in &failures {
                push_error_bullet_color(&mut lines, &check.message, color);
                if let Some(fix) = check.fix.as_deref() {
                    push_action_field_color(&mut lines, "fix", fix, color);
                }
            }
            if let Some(path) = report.config_file.as_ref() {
                push_section_color(&mut lines, "config", color);
                push_identity_bullet_color(&mut lines, path.display(), color);
            }
            return lines.join("\n");
        }
        DoctorSetupStatus::NotConfigured => {
            lines.push("kbolt is installed but no inference roles are configured".to_string());
            push_section_color(&mut lines, "next", color);
            push_action_bullet_color(&mut lines, "kbolt setup local", color);
            return lines.join("\n");
        }
        DoctorSetupStatus::Configured => {}
    }

    if report.ready && failures.is_empty() {
        lines.push("kbolt is ready".to_string());
    } else {
        lines.push("kbolt has issues".to_string());
    }

    let configured_roles: Vec<_> = report
        .checks
        .iter()
        .filter(|c| c.id.ends_with(".bound") && c.status == DoctorCheckStatus::Pass)
        .collect();
    if !configured_roles.is_empty() {
        push_section_color(&mut lines, "configured", color);
        for check in &configured_roles {
            let role = check.scope.strip_prefix("roles.").unwrap_or(&check.scope);
            push_bullet_color(&mut lines, role, color);
        }
    }

    let not_enabled: Vec<_> = report
        .checks
        .iter()
        .filter(|c| c.id.ends_with(".bound") && c.status == DoctorCheckStatus::Warn)
        .collect();
    if !not_enabled.is_empty() {
        push_section_color(&mut lines, "not enabled", color);
        for check in &not_enabled {
            let role = check.scope.strip_prefix("roles.").unwrap_or(&check.scope);
            push_warning_bullet_color(&mut lines, role, color);
        }
    }

    if !failures.is_empty() {
        push_section_color(&mut lines, "failures", color);
        for check in &failures {
            push_error_bullet_color(
                &mut lines,
                format!("{}: {}", check.id, check.message),
                color,
            );
            if let Some(fix) = check.fix.as_deref() {
                push_action_field_color(&mut lines, "fix", fix, color);
            }
        }
    }

    if !warnings.is_empty() && failures.is_empty() {
        // Only show non-bound warnings if there are no failures
        let other_warnings: Vec<_> = warnings
            .iter()
            .filter(|c| {
                !c.id.ends_with(".bound")
                    && !c.id.ends_with(".reachable")
                    && !is_expected_unindexed_storage_warning(c)
            })
            .collect();
        if !other_warnings.is_empty() {
            push_section_color(&mut lines, "warnings", color);
            for check in &other_warnings {
                push_warning_bullet_color(
                    &mut lines,
                    format!("{}: {}", check.id, check.message),
                    color,
                );
                if let Some(fix) = check.fix.as_deref() {
                    push_action_field_color(&mut lines, "fix", fix, color);
                }
            }
        }
    }

    if !expected_unindexed_warnings.is_empty() && failures.is_empty() {
        push_section_color(&mut lines, "indexing", color);
        push_warning_bullet_color(&mut lines, "no collections have been indexed yet", color);
        push_section_color(&mut lines, "next", color);
        push_action_bullet_color(&mut lines, "kbolt collection add /path/to/docs", color);
        push_action_hint_color(
            &mut lines,
            "or, if collections are already registered",
            "kbolt update",
            color,
        );
    }

    lines.join("\n")
}

fn is_expected_unindexed_storage_warning(check: &DoctorCheck) -> bool {
    check.status == DoctorCheckStatus::Warn
        && matches!(
            check.id.as_str(),
            "storage.sqlite_readable" | "storage.search_indexes_readable"
        )
}

pub fn format_local_report(report: &LocalReport) -> String {
    format_local_report_color(report, false)
}

pub fn format_local_report_color(report: &LocalReport, color: bool) -> String {
    let mut lines = Vec::new();

    let action_label = match report.action {
        LocalAction::Setup => "local setup complete",
        LocalAction::Start => "local servers started",
        LocalAction::Stop => "local servers stopped",
        LocalAction::Status => "local servers",
        LocalAction::EnableDeep => "deep search enabled",
    };

    if report.action == LocalAction::Stop || report.ready {
        lines.push(action_label.to_string());
    } else {
        lines.push(format!("{action_label} (not ready)"));
    }

    if !report.notes.is_empty() {
        push_section_color(&mut lines, "notes", color);
        for note in &report.notes {
            push_bullet_color(&mut lines, note, color);
        }
    }

    let ready_services: Vec<_> = if report.action == LocalAction::Stop {
        Vec::new()
    } else {
        report.services.iter().filter(|s| s.ready).collect()
    };
    let issue_services: Vec<_> = if report.action == LocalAction::Stop {
        report
            .services
            .iter()
            .filter(|s| s.configured && (s.running || s.ready))
            .collect()
    } else {
        report
            .services
            .iter()
            .filter(|s| s.configured && !s.ready)
            .collect()
    };
    let unconfigured_services: Vec<_> = report.services.iter().filter(|s| !s.configured).collect();

    if !ready_services.is_empty() {
        push_section_color(&mut lines, "ready", color);
        for service in &ready_services {
            push_bullet_color(
                &mut lines,
                format!("{} ({})", service.name, service.model),
                color,
            );
        }
    }

    if !issue_services.is_empty() {
        push_section_color(&mut lines, "issues", color);
        for service in &issue_services {
            let issue = service.issue.as_deref().unwrap_or("not ready");
            let detail = if report.action == LocalAction::Setup {
                format!(
                    "{}: {issue} (log: {})",
                    service.name,
                    service.log_file.display()
                )
            } else {
                format!("{}: {issue}", service.name)
            };
            push_warning_bullet_color(&mut lines, detail, color);
        }
    }

    if !unconfigured_services.is_empty() && report.action != LocalAction::Stop {
        push_section_color(&mut lines, "not configured", color);
        for service in &unconfigured_services {
            push_warning_bullet_color(&mut lines, &service.name, color);
        }
    }

    push_section_color(&mut lines, "config", color);
    push_identity_bullet_color(&mut lines, report.config_file.display(), color);

    if report.action == LocalAction::Setup && report.ready {
        push_section_color(&mut lines, "next", color);
        push_action_bullet_color(&mut lines, "kbolt collection add /path/to/docs", color);
        push_action_bullet_color(&mut lines, "kbolt doctor", color);
    }

    lines.join("\n")
}

fn format_field(color: bool, label: &str, value: &str) -> String {
    format!("{} {value}", paint_label(color, format!("{label}:")))
}

fn push_section(lines: &mut Vec<String>, label: &str) {
    push_section_color(lines, label, false);
}

fn push_section_color(lines: &mut Vec<String>, label: &str, color: bool) {
    if !lines.is_empty() {
        lines.push(String::new());
    }
    lines.push(paint_section(color, format!("{label}:")));
}

fn push_bullet(lines: &mut Vec<String>, value: impl std::fmt::Display) {
    push_bullet_color(lines, value, false);
}

fn push_bullet_color(lines: &mut Vec<String>, value: impl std::fmt::Display, color: bool) {
    lines.push(format!("{} {value}", paint_chrome(color, "-")));
}

fn push_field(lines: &mut Vec<String>, label: &str, value: impl std::fmt::Display) {
    push_field_color(lines, label, value, false);
}

fn push_field_color(
    lines: &mut Vec<String>,
    label: &str,
    value: impl std::fmt::Display,
    color: bool,
) {
    lines.push(format!(
        "  {} {value}",
        paint_label(color, format!("{label}:"))
    ));
}

fn append_ignore_content_lines(lines: &mut Vec<String>, content: &str) {
    let mut added = false;
    for pattern in content.lines().filter(|line| !line.trim().is_empty()) {
        push_bullet(lines, pattern);
        added = true;
    }
    if !added {
        push_bullet(lines, "none");
    }
}

fn paint(color: bool, style: CliStyle, text: impl AsRef<str>) -> String {
    paint_cli(color, style, text)
}

pub fn paint_cli(color: bool, style: CliStyle, text: impl AsRef<str>) -> String {
    let text = text.as_ref();
    if !color || text.is_empty() {
        return text.to_string();
    }

    match ansi_code(style) {
        Some(code) => format!("\x1b[{code}m{text}\x1b[0m"),
        None => text.to_string(),
    }
}

fn paint_title(color: bool, text: impl AsRef<str>) -> String {
    paint(color, CliStyle::Title, text)
}

fn paint_chrome(color: bool, text: impl AsRef<str>) -> String {
    paint(color, CliStyle::Chrome, text)
}

fn paint_label(color: bool, text: impl AsRef<str>) -> String {
    paint(color, CliStyle::Label, text)
}

fn paint_section(color: bool, text: impl AsRef<str>) -> String {
    paint(color, CliStyle::Section, text)
}

fn paint_identity(color: bool, text: impl AsRef<str>) -> String {
    paint(color, CliStyle::Identity, text)
}

fn paint_action(color: bool, text: impl AsRef<str>) -> String {
    paint(color, CliStyle::Action, text)
}

fn paint_warning(color: bool, text: impl AsRef<str>) -> String {
    paint(color, CliStyle::Warning, text)
}

fn paint_error(color: bool, text: impl AsRef<str>) -> String {
    paint(color, CliStyle::Error, text)
}

fn push_action_bullet_color(lines: &mut Vec<String>, value: impl std::fmt::Display, color: bool) {
    push_bullet_color(lines, paint_action(color, value.to_string()), color);
}

fn push_action_hint_color(
    lines: &mut Vec<String>,
    label: &str,
    command: impl std::fmt::Display,
    color: bool,
) {
    push_bullet_color(
        lines,
        format!("{label}: {}", paint_action(color, command.to_string())),
        color,
    );
}

fn push_warning_bullet_color(lines: &mut Vec<String>, value: impl std::fmt::Display, color: bool) {
    push_bullet_color(lines, paint_warning(color, value.to_string()), color);
}

fn push_warning_field_color(
    lines: &mut Vec<String>,
    label: &str,
    value: impl std::fmt::Display,
    color: bool,
) {
    lines.push(format!(
        "  {} {}",
        paint_label(color, format!("{label}:")),
        paint_warning(color, value.to_string())
    ));
}

fn push_error_bullet_color(lines: &mut Vec<String>, value: impl std::fmt::Display, color: bool) {
    push_bullet_color(lines, paint_error(color, value.to_string()), color);
}

fn push_error_field_color(
    lines: &mut Vec<String>,
    label: &str,
    value: impl std::fmt::Display,
    color: bool,
) {
    lines.push(format!(
        "  {} {}",
        paint_label(color, format!("{label}:")),
        paint_error(color, value.to_string())
    ));
}

fn push_identity_bullet_color(lines: &mut Vec<String>, value: impl std::fmt::Display, color: bool) {
    push_bullet_color(lines, paint_identity(color, value.to_string()), color);
}

fn push_action_field_color(
    lines: &mut Vec<String>,
    label: &str,
    value: impl std::fmt::Display,
    color: bool,
) {
    lines.push(format!(
        "  {} {}",
        paint_label(color, format!("{label}:")),
        paint_action(color, value.to_string())
    ));
}

fn ansi_code(style: CliStyle) -> Option<&'static str> {
    match style {
        CliStyle::Title => Some("1"),
        CliStyle::Label => None,
        CliStyle::Chrome => Some("90"),
        CliStyle::Section => Some("1;36"),
        CliStyle::Identity => Some("34"),
        CliStyle::Action => Some("32"),
        CliStyle::Warning => Some("33"),
        CliStyle::Error => Some("31"),
    }
}

fn format_search_mode(mode: &SearchMode) -> &'static str {
    match mode {
        SearchMode::Auto => "auto",
        SearchMode::Deep => "deep",
        SearchMode::Keyword => "keyword",
        SearchMode::Semantic => "semantic",
    }
}

fn format_search_result_path(space: &str, path: &str) -> String {
    format!("{space}/{path}")
}

fn format_space_describe_response(name: &str, color: bool) -> String {
    format!("space description updated: {}", paint_identity(color, name))
}

fn format_space_add_response(name: &str, color: bool) -> String {
    format!("space added: {}", paint_identity(color, name))
}

fn format_space_rename_response(old: &str, new: &str, color: bool) -> String {
    format!(
        "space renamed: {} -> {}",
        paint_identity(color, old),
        paint_identity(color, new)
    )
}

fn format_space_remove_response(name: &str, color: bool) -> String {
    format!("removed: space {}", paint_identity(color, name))
}

fn format_space_remove_default_response(color: bool) -> String {
    format!(
        "{}\n{} {}",
        format_space_remove_response("default", color),
        paint_label(color, "default space:"),
        paint_warning(color, "cleared")
    )
}

fn format_space_default_response(name: Option<&str>, color: bool) -> String {
    match name {
        Some(name) => format!("default space: {}", paint_identity(color, name)),
        None => "default space: none".to_string(),
    }
}

fn format_space_current_response(active: Option<(&str, &str)>, color: bool) -> String {
    match active {
        Some((name, source)) => format!(
            "active space: {} ({})",
            paint_identity(color, name),
            paint_chrome(color, source)
        ),
        None => "active space: none".to_string(),
    }
}

fn group_search_results<'a>(
    results: &'a [kbolt_types::SearchResult],
    limit: usize,
) -> Vec<GroupedSearchResult<'a>> {
    let mut grouped: Vec<GroupedSearchResult<'a>> = Vec::new();
    let mut index_by_document: HashMap<(&str, &str), usize> = HashMap::new();

    for result in results {
        let document_key = (result.space.as_str(), result.path.as_str());
        if let Some(index) = index_by_document.get(&document_key).copied() {
            grouped[index].additional_matches.push(result);
            continue;
        }

        if grouped.len() >= limit {
            continue;
        }

        let next_index = grouped.len();
        index_by_document.insert(document_key, next_index);
        grouped.push(GroupedSearchResult {
            primary: result,
            additional_matches: Vec::new(),
        });
    }

    grouped
}

fn format_additional_match_label(result: &kbolt_types::SearchResult) -> String {
    if let Some(heading) = result
        .heading
        .as_deref()
        .map(str::trim)
        .filter(|heading| !heading.is_empty())
    {
        return format!("{heading} (chunk {})", result.chunk.ordinal);
    }

    format!("chunk {}", result.chunk.ordinal)
}

fn format_compact_chunk_locator(docid: &str, chunk_ordinal: usize) -> String {
    format!("{}@{}", docid.trim(), chunk_ordinal)
}

fn full_docid_from_chunk_locator(locator: &str) -> Option<&str> {
    locator
        .trim()
        .trim_start_matches('#')
        .split_once('@')
        .map(|(docid, _)| docid)
        .filter(|docid| !docid.is_empty())
}

#[cfg(test)]
fn format_collection_info(collection: &CollectionInfo) -> String {
    format_collection_info_color(collection, false)
}

fn format_collection_info_color(collection: &CollectionInfo, color: bool) -> String {
    let mut lines = Vec::new();
    lines.push(format!(
        "collection: {}/{}",
        collection.space, collection.name
    ));
    push_field_color(&mut lines, "path", collection.path.display(), color);

    if let Some(description) = collection.description.as_deref() {
        if !description.is_empty() {
            push_field_color(&mut lines, "description", description, color);
        }
    }

    if let Some(extensions) = collection.extensions.as_ref() {
        if !extensions.is_empty() {
            push_field_color(&mut lines, "extensions", extensions.join(", "), color);
        }
    }

    push_section_color(&mut lines, "documents", color);
    push_bullet_color(
        &mut lines,
        format!(
            "{} active / {} total",
            collection.active_document_count, collection.document_count
        ),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!("{} chunks", collection.chunk_count),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!("{} embedded", collection.embedded_chunk_count),
        color,
    );

    push_section_color(&mut lines, "timestamps", color);
    push_bullet_color(&mut lines, format!("created {}", collection.created), color);
    push_bullet_color(&mut lines, format!("updated {}", collection.updated), color);

    lines.join("\n")
}

fn format_document_response(document: &DocumentResponse, color: bool) -> String {
    let mut lines = Vec::new();
    lines.push(format!(
        "{} {}",
        paint_label(color, "document:"),
        paint_identity(
            color,
            format_search_result_path(&document.space, &document.path),
        )
    ));
    lines.push(format!(
        "{} {}",
        paint_label(color, "title:"),
        paint_title(color, &document.title)
    ));
    lines.push(format!(
        "{} {}",
        paint_label(color, "docid:"),
        paint_identity(color, &document.docid)
    ));
    if document.stale {
        lines.push(format!(
            "{} {}",
            paint_label(color, "status:"),
            paint_warning(color, "stale")
        ));
    }

    lines.push(String::new());
    lines.push(document.content.clone());

    lines.join("\n")
}

fn format_chunk_response(chunk: &ChunkResponse, display_locator: &str, color: bool) -> String {
    let mut lines = Vec::new();
    lines.push(format!(
        "{}   {}",
        paint_title(color, &chunk.title),
        paint_identity(color, display_locator)
    ));
    lines.push(format!(
        "{} {}",
        paint_label(color, "path:"),
        paint_identity(color, format_search_result_path(&chunk.space, &chunk.path))
    ));
    if let Some(heading) = chunk.heading.as_deref() {
        lines.push(format!("{} {heading}", paint_label(color, "section:")));
    }
    if chunk.stale {
        lines.push(format!(
            "{} {}",
            paint_label(color, "status:"),
            paint_warning(color, "stale")
        ));
    }

    lines.push(String::new());
    lines.push(chunk.content.clone());

    lines.join("\n")
}

#[cfg(test)]
fn format_multi_get_response(response: &MultiGetResponse) -> String {
    format_multi_get_response_color(response, false)
}

#[cfg(test)]
fn format_multi_get_response_color(response: &MultiGetResponse, color: bool) -> String {
    format_multi_get_response_color_with_chunk_locators(response, color, &HashMap::new())
}

fn format_multi_get_response_color_with_chunk_locators(
    response: &MultiGetResponse,
    color: bool,
    chunk_display_locators: &HashMap<String, String>,
) -> String {
    let mut lines = Vec::new();
    push_section_color(&mut lines, "items", color);
    if response.items.is_empty() {
        push_bullet_color(&mut lines, "none returned", color);
        if response.resolved_count > 0 {
            push_bullet_color(
                &mut lines,
                format!("{} resolved", response.resolved_count),
                color,
            );
        }
    } else {
        push_bullet_color(
            &mut lines,
            format!("{} returned", response.items.len()),
            color,
        );
        if response.resolved_count > response.items.len() {
            push_bullet_color(
                &mut lines,
                format!("{} resolved", response.resolved_count),
                color,
            );
        }

        for (index, item) in response.items.iter().enumerate() {
            lines.push(String::new());
            append_multi_get_item_lines(&mut lines, index + 1, item, color, chunk_display_locators);
            lines.push(String::new());
        }
    }

    if !response.omitted.is_empty() {
        push_section_color(&mut lines, "omitted", color);
        for omitted in &response.omitted {
            push_warning_bullet_color(
                &mut lines,
                format_omitted_item(omitted, chunk_display_locators),
                color,
            );
        }
    }

    if !response.warnings.is_empty() {
        push_section_color(&mut lines, "warnings", color);
        for warning in &response.warnings {
            push_warning_bullet_color(&mut lines, warning, color);
        }
    }

    lines.join("\n")
}

fn append_multi_get_item_lines(
    lines: &mut Vec<String>,
    index: usize,
    item: &MultiGetItem,
    color: bool,
    chunk_display_locators: &HashMap<String, String>,
) {
    match item {
        MultiGetItem::Document(document) => {
            lines.push(format!(
                "{}. {}",
                index,
                format_search_result_path(&document.space, &document.path)
            ));
            lines.push(format!(
                "   {} {}",
                paint_label(color, "title:"),
                document.title
            ));
            lines.push(format!(
                "   {} {}",
                paint_label(color, "docid:"),
                paint_identity(color, &document.docid)
            ));
            if document.stale {
                lines.push(format!(
                    "   {} {}",
                    paint_label(color, "status:"),
                    paint_warning(color, "stale")
                ));
            }
            append_plain_content_lines(lines, &document.content);
        }
        MultiGetItem::Chunk(chunk) => {
            let display_locator = chunk_display_locators
                .get(&chunk.locator)
                .map(String::as_str)
                .unwrap_or(&chunk.locator);
            lines.push(format!(
                "{}. {}",
                index,
                format_search_result_path(&chunk.space, &chunk.path)
            ));
            lines.push(format!(
                "   {} {}",
                paint_label(color, "title:"),
                chunk.title
            ));
            lines.push(format!(
                "   {} {}",
                paint_label(color, "locator:"),
                paint_identity(color, display_locator)
            ));
            if let Some(heading) = chunk.heading.as_deref() {
                lines.push(format!("   {} {}", paint_label(color, "section:"), heading));
            }
            if chunk.stale {
                lines.push(format!(
                    "   {} {}",
                    paint_label(color, "status:"),
                    paint_warning(color, "stale")
                ));
            }
            append_plain_content_lines(lines, &chunk.content);
        }
    }
}

fn append_plain_content_lines(lines: &mut Vec<String>, content: &str) {
    lines.push(String::new());
    for content_line in content.lines() {
        lines.push(content_line.to_string());
    }
    if content.is_empty() {
        lines.push(String::new());
    }
}

fn format_omitted_item(
    omitted: &kbolt_types::OmittedItem,
    chunk_display_locators: &HashMap<String, String>,
) -> String {
    match omitted.kind {
        MultiGetItemKind::Document => format!(
            "{} ({}, {})",
            omitted.path,
            format_bytes_human(omitted.size_bytes as u64),
            format_omit_reason(&omitted.reason)
        ),
        MultiGetItemKind::Chunk => {
            let display_locator = chunk_display_locators
                .get(&omitted.locator)
                .map(String::as_str)
                .unwrap_or(&omitted.locator);
            format!(
                "{} in {} ({}, {})",
                display_locator,
                omitted.path,
                format_bytes_human(omitted.size_bytes as u64),
                format_omit_reason(&omitted.reason)
            )
        }
    }
}

#[cfg(test)]
fn format_models_list(status: &kbolt_types::ModelStatus) -> String {
    format_models_list_color(status, false)
}

fn format_models_list_color(status: &kbolt_types::ModelStatus, color: bool) -> String {
    let mut lines = Vec::new();
    push_section_color(&mut lines, "models", color);
    append_model_status_lines(&mut lines, "embedder", &status.embedder, color);
    append_model_status_lines(&mut lines, "reranker", &status.reranker, color);
    append_model_status_lines(&mut lines, "expander", &status.expander, color);
    lines.join("\n")
}

#[cfg(test)]
fn format_status_response(status: &StatusResponse, active_space: Option<&str>) -> String {
    format_status_response_color(status, active_space, false)
}

fn format_status_response_color(
    status: &StatusResponse,
    active_space: Option<&str>,
    color: bool,
) -> String {
    let mut lines = Vec::new();

    push_section_color(&mut lines, "spaces", color);
    if status.spaces.is_empty() {
        push_bullet_color(&mut lines, "none", color);
    } else {
        for space in &status.spaces {
            let active_suffix = if Some(space.name.as_str()) == active_space {
                " (active)"
            } else {
                ""
            };
            push_bullet_color(
                &mut lines,
                format!("{}{}", space.name, active_suffix),
                color,
            );
            if let Some(description) = space.description.as_deref() {
                if !description.is_empty() {
                    push_field_color(&mut lines, "description", description, color);
                }
            }
            if let Some(last_updated) = space.last_updated.as_deref() {
                push_field_color(&mut lines, "updated", last_updated, color);
            }

            if space.collections.is_empty() {
                push_field_color(&mut lines, "collections", "none", color);
            } else {
                lines.push(format!("  {}", paint_section(color, "collections:")));
                for collection in &space.collections {
                    lines.push(format!(
                        "    {} {}",
                        paint_chrome(color, "-"),
                        collection.name
                    ));
                    lines.push(format!(
                        "      {} {}",
                        paint_label(color, "path:"),
                        collection.path.display()
                    ));
                    lines.push(format!(
                        "      {} {} active / {} total",
                        paint_label(color, "documents:"),
                        collection.active_documents,
                        collection.documents
                    ));
                    lines.push(format!(
                        "      {} {}",
                        paint_label(color, "chunks:"),
                        collection.chunks
                    ));
                    lines.push(format!(
                        "      {} {}",
                        paint_label(color, "embedded:"),
                        collection.embedded_chunks
                    ));
                    lines.push(format!(
                        "      {} {}",
                        paint_label(color, "updated:"),
                        collection.last_updated
                    ));
                }
            }
        }
    }

    push_section_color(&mut lines, "totals", color);
    push_bullet_color(
        &mut lines,
        format!("documents: {}", status.total_documents),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!("chunks: {}", status.total_chunks),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!("embedded: {}", status.total_embedded),
        color,
    );

    push_section_color(&mut lines, "storage", color);
    push_bullet_color(
        &mut lines,
        format!(
            "sqlite: {}",
            format_bytes_human(status.disk_usage.sqlite_bytes)
        ),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!(
            "tantivy: {}",
            format_bytes_human(status.disk_usage.tantivy_bytes)
        ),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!(
            "vectors: {}",
            format_bytes_human(status.disk_usage.usearch_bytes)
        ),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!(
            "models: {}",
            format_bytes_human(status.disk_usage.models_bytes)
        ),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!(
            "total: {}",
            format_bytes_human(status.disk_usage.total_bytes)
        ),
        color,
    );

    push_section_color(&mut lines, "models", color);
    append_model_status_lines(&mut lines, "embedder", &status.models.embedder, color);
    append_model_status_lines(&mut lines, "reranker", &status.models.reranker, color);
    append_model_status_lines(&mut lines, "expander", &status.models.expander, color);

    push_section_color(&mut lines, "paths", color);
    push_bullet_color(
        &mut lines,
        format!("cache: {}", status.cache_dir.display()),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!("config: {}", status.config_dir.display()),
        color,
    );

    lines.join("\n")
}

#[cfg(test)]
fn format_file_list(files: &[FileEntry], all: bool) -> String {
    format_file_list_color(files, all, false)
}

fn format_file_list_color(files: &[FileEntry], all: bool, color: bool) -> String {
    let mut lines = Vec::new();
    push_section_color(&mut lines, "files", color);
    if files.is_empty() {
        push_bullet_color(&mut lines, "none", color);
        return lines.join("\n");
    }

    for file in files {
        push_bullet_color(&mut lines, format_file_entry_color(file, all, color), color);
    }

    lines.join("\n")
}

fn format_file_entry_color(file: &FileEntry, all: bool, color: bool) -> String {
    let path = paint_identity(color, &file.path);
    let status = if file.embedded {
        paint_chrome(color, "embedded")
    } else {
        paint_warning(color, "not embedded")
    };

    if all && !file.active {
        format!(
            "{} ({}, {} chunk(s), {})",
            path,
            paint_warning(color, "inactive"),
            file.chunk_count,
            status
        )
    } else {
        format!("{} ({} chunk(s), {})", path, file.chunk_count, status)
    }
}

fn append_model_status_lines(lines: &mut Vec<String>, label: &str, info: &ModelInfo, color: bool) {
    let mut summary = format!("{}: {}", label, format_model_state_label(info, color));
    if let Some(model) = info.model.as_deref() {
        summary.push_str(&format!(" ({model})"));
    }
    push_bullet_color(lines, summary, color);

    if info.configured && !info.ready {
        if let Some(issue) = info.issue.as_deref() {
            push_warning_field_color(lines, "issue", issue, color);
        }
    }
}

fn format_model_state_label(info: &ModelInfo, color: bool) -> String {
    let label = model_state_label(info);
    if info.ready {
        label.to_string()
    } else {
        paint_warning(color, label)
    }
}

fn model_state_label(info: &ModelInfo) -> &'static str {
    if !info.configured {
        "not configured"
    } else if info.ready {
        "ready"
    } else {
        "not ready"
    }
}

fn format_bytes_human(bytes: u64) -> String {
    const UNITS: [&str; 5] = ["B", "KB", "MB", "GB", "TB"];

    if bytes < 1024 {
        return format!("{bytes} B");
    }

    let mut value = bytes as f64;
    let mut unit_index = 0usize;
    while value >= 1024.0 && unit_index < UNITS.len() - 1 {
        value /= 1024.0;
        unit_index += 1;
    }

    if value >= 10.0 {
        format!("{value:.0} {}", UNITS[unit_index])
    } else {
        format!("{value:.1} {}", UNITS[unit_index])
    }
}

fn format_omit_reason(reason: &OmitReason) -> &'static str {
    match reason {
        OmitReason::MaxFiles => "max files",
        OmitReason::MaxBytes => "size limit",
    }
}

fn active_space_name_for_status(engine: &Engine, explicit: Option<&str>) -> Option<String> {
    if let Some(space_name) = explicit {
        return Some(space_name.to_string());
    }

    if let Ok(space_name) = std::env::var("KBOLT_SPACE") {
        let trimmed = space_name.trim();
        if !trimmed.is_empty() {
            return Some(trimmed.to_string());
        }
    }

    engine.config().default_space.clone()
}

fn format_optional_search_signal(value: Option<f32>) -> String {
    value
        .map(format_search_signal)
        .unwrap_or_else(|| "-".to_string())
}

fn format_search_signal(value: f32) -> String {
    format!("{value:.2}")
}

fn format_search_pipeline(pipeline: &SearchPipeline) -> String {
    let mut parts = Vec::new();
    if pipeline.expansion {
        parts.push("expansion");
    }
    if pipeline.keyword {
        parts.push("keyword");
    }
    if pipeline.dense {
        parts.push("dense");
    }
    if pipeline.rerank {
        parts.push("rerank");
    }

    if parts.is_empty() {
        "none".to_string()
    } else {
        parts.join(" + ")
    }
}

fn format_search_pipeline_notice(notice: &SearchPipelineNotice) -> String {
    let step = match notice.step {
        SearchPipelineStep::Dense => "dense retrieval",
        SearchPipelineStep::Rerank => "rerank",
    };
    let reason = match notice.reason {
        SearchPipelineUnavailableReason::NotConfigured => "not configured",
        SearchPipelineUnavailableReason::ModelNotAvailable => "required provider is not ready",
    };
    format!("{step} unavailable: {reason}")
}

fn format_normal_search_pipeline_notice(
    notice: &SearchPipelineNotice,
    effective_mode: &SearchMode,
) -> &'static str {
    match notice.step {
        SearchPipelineStep::Dense if effective_mode == &SearchMode::Keyword => {
            "keyword only (dense unavailable)"
        }
        SearchPipelineStep::Dense => "dense unavailable",
        SearchPipelineStep::Rerank => "rerank skipped",
    }
}

fn format_normal_search_pipeline_notice_color(
    notice: &SearchPipelineNotice,
    effective_mode: &SearchMode,
    color: bool,
) -> String {
    paint_warning(
        color,
        format_normal_search_pipeline_notice(notice, effective_mode),
    )
}

#[cfg(test)]
fn format_update_report(report: &UpdateReport, verbose: bool, no_embed: bool) -> String {
    format_update_report_color(report, verbose, no_embed, false)
}

fn format_update_report_color(
    report: &UpdateReport,
    verbose: bool,
    no_embed: bool,
    color: bool,
) -> String {
    let mut lines = Vec::new();
    if verbose {
        if !report.decisions.is_empty() {
            push_section_color(&mut lines, "decisions", color);
            for decision in &report.decisions {
                push_bullet_color(&mut lines, format_update_decision(decision), color);
            }
        }

        let unreported_errors = unreported_update_errors(report);
        if !unreported_errors.is_empty() {
            push_section_color(&mut lines, "errors", color);
            for error in unreported_errors {
                push_error_bullet_color(
                    &mut lines,
                    format!("{}: {}", error.path, error.error),
                    color,
                );
            }
        }
    }

    if !lines.is_empty() {
        lines.push(String::new());
    }
    lines.push("update complete".to_string());
    append_update_summary_lines(&mut lines, report, no_embed, color);

    if !report.errors.is_empty() && !verbose {
        let truncated = append_update_error_lines_color(&mut lines, report, 3, color);
        if truncated {
            push_section_color(&mut lines, "next", color);
            push_action_bullet_color(
                &mut lines,
                "run with --verbose for the full error list",
                color,
            );
        }
    }

    lines.join("\n")
}

fn format_collection_describe_response(name: &str, color: bool) -> String {
    format!(
        "collection description updated: {}",
        paint_identity(color, name)
    )
}

fn format_collection_rename_response(old: &str, new: &str, color: bool) -> String {
    format!(
        "collection renamed: {} -> {}",
        paint_identity(color, old),
        paint_identity(color, new)
    )
}

fn format_collection_remove_response(space: &str, name: &str, color: bool) -> String {
    format!(
        "removed: collection {}\n{} {}",
        paint_identity(color, name),
        paint_label(color, "space:"),
        paint_identity(color, space)
    )
}

#[cfg(test)]
fn format_collection_add_result(result: &AddCollectionResult) -> String {
    format_collection_add_result_color(result, false)
}

fn format_collection_add_result_color(result: &AddCollectionResult, color: bool) -> String {
    let collection = &result.collection;
    let locator = format!("{}/{}", collection.space, collection.name);

    match &result.initial_indexing {
        InitialIndexingOutcome::Skipped => {
            let mut lines = vec![format!("collection added: {locator}")];
            push_section_color(&mut lines, "indexing", color);
            push_warning_bullet_color(&mut lines, "skipped (--no-index)", color);
            push_section_color(&mut lines, "next", color);
            push_action_bullet_color(
                &mut lines,
                format!(
                    "kbolt --space {} update --collection {}",
                    shell_quote_arg(&collection.space),
                    shell_quote_arg(&collection.name),
                ),
                color,
            );
            lines.join("\n")
        }
        InitialIndexingOutcome::Indexed(report) => {
            format_collection_add_indexing_report(collection, &locator, report, color)
        }
        InitialIndexingOutcome::Blocked(block) => {
            format_collection_add_block(collection, &locator, block, color)
        }
    }
}

fn format_collection_add_indexing_report(
    collection: &kbolt_types::CollectionInfo,
    locator: &str,
    report: &UpdateReport,
    color: bool,
) -> String {
    let mut lines = Vec::new();
    if report.failed_docs == 0 {
        lines.push(format!("collection added and indexed: {locator}"));
    } else {
        lines.push(format!("collection added: {locator}"));
        lines.push("initial indexing incomplete".to_string());
    }

    append_update_summary_lines(&mut lines, report, false, color);

    let truncated = if !report.errors.is_empty() {
        append_update_error_lines_color(&mut lines, report, 3, color)
    } else {
        false
    };

    if report.failed_docs > 0 || truncated {
        push_section_color(&mut lines, "next", color);
        let verbose_flag = if truncated { " --verbose" } else { "" };
        push_action_bullet_color(
            &mut lines,
            format!(
                "kbolt --space {} update{verbose_flag} --collection {}",
                shell_quote_arg(&collection.space),
                shell_quote_arg(&collection.name),
            ),
            color,
        );
    }

    lines.join("\n")
}

fn format_collection_add_block(
    collection: &kbolt_types::CollectionInfo,
    locator: &str,
    block: &InitialIndexingBlock,
    color: bool,
) -> String {
    let mut lines = Vec::new();
    lines.push(format!("collection added: {locator}"));

    match block {
        InitialIndexingBlock::SpaceDenseRepairRequired { space, reason } => {
            lines.push(format!(
                "indexing blocked by a dense integrity issue in space '{space}'"
            ));
            push_field_color(&mut lines, "reason", reason, color);
            push_section_color(&mut lines, "next", color);
            push_action_bullet_color(
                &mut lines,
                format!("kbolt --space {} update", shell_quote_arg(space)),
                color,
            );
        }
        InitialIndexingBlock::ModelNotAvailable { name } => {
            lines.push(format!("indexing blocked: model '{name}' is not available"));
            push_section_color(&mut lines, "next", color);
            push_action_bullet_color(&mut lines, "kbolt setup local", color);
            push_bullet_color(
                &mut lines,
                "or configure [roles.embedder] in index.toml",
                color,
            );
            push_action_hint_color(
                &mut lines,
                "then run",
                format!(
                    "kbolt --space {} update --collection {}",
                    shell_quote_arg(&collection.space),
                    shell_quote_arg(&collection.name),
                ),
                color,
            );
        }
    }

    lines.join("\n")
}

#[cfg(test)]
fn append_update_error_lines(lines: &mut Vec<String>, report: &UpdateReport, limit: usize) -> bool {
    append_update_error_lines_color(lines, report, limit, false)
}

fn append_update_error_lines_color(
    lines: &mut Vec<String>,
    report: &UpdateReport,
    limit: usize,
    color: bool,
) -> bool {
    push_section_color(lines, "errors", color);
    for error in report.errors.iter().take(limit) {
        push_error_bullet_color(lines, format!("{}: {}", error.path, error.error), color);
    }
    let truncated = report.errors.len() > limit;
    if truncated {
        push_error_bullet_color(
            lines,
            format!("{} more error(s)", report.errors.len() - limit),
            color,
        );
    }
    truncated
}

fn append_update_summary_lines(
    lines: &mut Vec<String>,
    report: &UpdateReport,
    no_embed: bool,
    color: bool,
) {
    push_section_color(lines, "summary", color);
    push_bullet_color(
        lines,
        format!("{} document(s) scanned", report.scanned_docs),
        color,
    );

    let unchanged = report.skipped_mtime_docs + report.skipped_hash_docs;
    if unchanged > 0 {
        push_bullet_color(lines, format!("{} unchanged", unchanged), color);
    }
    if report.added_docs > 0 {
        push_bullet_color(lines, format!("{} added", report.added_docs), color);
    }
    if report.updated_docs > 0 {
        push_bullet_color(lines, format!("{} updated", report.updated_docs), color);
    }
    if report.failed_docs > 0 {
        push_error_bullet_color(lines, format!("{} failed", report.failed_docs), color);
    }
    if report.deactivated_docs > 0 {
        push_bullet_color(
            lines,
            format!("{} deactivated", report.deactivated_docs),
            color,
        );
    }
    if report.reactivated_docs > 0 {
        push_bullet_color(
            lines,
            format!("{} reactivated", report.reactivated_docs),
            color,
        );
    }
    if report.reaped_docs > 0 {
        push_bullet_color(lines, format!("{} reaped", report.reaped_docs), color);
    }
    if report.embedded_chunks > 0 {
        push_bullet_color(
            lines,
            format!("{} chunk(s) embedded", report.embedded_chunks),
            color,
        );
    }
    if no_embed {
        push_warning_bullet_color(lines, "embedding skipped (--no-embed)", color);
    }

    push_bullet_color(
        lines,
        format!("completed in {}", format_elapsed_ms(report.elapsed_ms)),
        color,
    );
}

fn format_elapsed_ms(elapsed_ms: u64) -> String {
    if elapsed_ms < 1_000 {
        format!("{elapsed_ms}ms")
    } else if elapsed_ms < 60_000 {
        format!("{:.1}s", elapsed_ms as f64 / 1_000.0)
    } else {
        let total_seconds = elapsed_ms as f64 / 1_000.0;
        format!("{:.1}m", total_seconds / 60.0)
    }
}

fn format_update_decision(decision: &UpdateDecision) -> String {
    let locator = format!(
        "{}/{}/{}",
        decision.space, decision.collection, decision.path
    );
    match decision.detail.as_deref() {
        Some(detail) => format!(
            "{locator}: {} ({detail})",
            format_update_decision_kind(&decision.kind)
        ),
        None => format!("{locator}: {}", format_update_decision_kind(&decision.kind)),
    }
}

fn format_update_decision_kind(kind: &UpdateDecisionKind) -> &'static str {
    match kind {
        UpdateDecisionKind::New => "new",
        UpdateDecisionKind::Changed => "changed",
        UpdateDecisionKind::SkippedMtime => "skipped_mtime",
        UpdateDecisionKind::SkippedHash => "skipped_hash",
        UpdateDecisionKind::Ignored => "ignored",
        UpdateDecisionKind::Unsupported => "unsupported",
        UpdateDecisionKind::ReadFailed => "read_failed",
        UpdateDecisionKind::ExtractFailed => "extract_failed",
        UpdateDecisionKind::Reactivated => "reactivated",
        UpdateDecisionKind::Deactivated => "deactivated",
    }
}

fn unreported_update_errors(report: &UpdateReport) -> Vec<&kbolt_types::FileError> {
    report
        .errors
        .iter()
        .filter(|error| {
            !report.decisions.iter().any(|decision| {
                matches!(
                    decision.kind,
                    UpdateDecisionKind::ReadFailed | UpdateDecisionKind::ExtractFailed
                ) && std::path::Path::new(&error.path)
                    .ends_with(std::path::Path::new(&decision.path))
            })
        })
        .collect()
}

pub fn resolve_no_rerank_for_mode(mode: SearchMode, rerank: bool, no_rerank: bool) -> bool {
    match mode {
        SearchMode::Auto => !rerank,
        SearchMode::Deep => no_rerank,
        SearchMode::Keyword | SearchMode::Semantic => true,
    }
}

fn truncate_snippet(text: &str, max_lines: usize) -> String {
    let lines: Vec<&str> = text.lines().collect();
    if lines.len() <= max_lines {
        return text.to_string();
    }
    let truncated: Vec<&str> = lines[..max_lines].to_vec();
    let remaining = lines.len() - max_lines;
    format!(
        "{}\n(+{remaining} more line{})",
        truncated.join("\n"),
        if remaining == 1 { "" } else { "s" }
    )
}

fn resolve_editor_command() -> Result<Vec<String>> {
    let raw = std::env::var("VISUAL")
        .ok()
        .filter(|value| !value.trim().is_empty())
        .or_else(|| {
            std::env::var("EDITOR")
                .ok()
                .filter(|value| !value.trim().is_empty())
        })
        .unwrap_or_else(|| "vi".to_string());

    parse_editor_command(&raw)
}

fn parse_editor_command(raw: &str) -> Result<Vec<String>> {
    let args = shell_words::split(raw).map_err(|err| {
        KboltError::InvalidInput(format!("invalid editor command '{raw}': {err}"))
    })?;
    if args.is_empty() {
        return Err(KboltError::InvalidInput("editor command cannot be empty".to_string()).into());
    }
    Ok(args)
}

#[cfg(test)]
fn format_schedule_add_response(response: &ScheduleAddResponse) -> String {
    format_schedule_add_response_color(response, false)
}

fn format_schedule_add_response_color(response: &ScheduleAddResponse, color: bool) -> String {
    let mut lines = Vec::new();
    lines.push(format!("schedule added: {}", response.schedule.id));
    push_section_color(&mut lines, "details", color);
    push_bullet_color(
        &mut lines,
        format!(
            "trigger: {}",
            format_schedule_trigger(&response.schedule.trigger)
        ),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!("scope: {}", format_schedule_scope(&response.schedule.scope)),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!("backend: {}", format_schedule_backend(response.backend)),
        color,
    );
    lines.join("\n")
}

#[cfg(test)]
fn format_schedule_status_response(response: &ScheduleStatusResponse) -> String {
    format_schedule_status_response_color(response, false)
}

fn format_schedule_status_response_color(response: &ScheduleStatusResponse, color: bool) -> String {
    let mut lines = Vec::new();
    push_section_color(&mut lines, "schedules", color);
    if response.schedules.is_empty() {
        push_bullet_color(&mut lines, "none", color);
    } else {
        for entry in &response.schedules {
            push_bullet_color(&mut lines, &entry.schedule.id, color);
            push_field_color(
                &mut lines,
                "trigger",
                format_schedule_trigger(&entry.schedule.trigger),
                color,
            );
            push_field_color(
                &mut lines,
                "scope",
                format_schedule_scope(&entry.schedule.scope),
                color,
            );
            push_field_color(
                &mut lines,
                "backend",
                format_schedule_backend(entry.backend),
                color,
            );
            push_field_color(
                &mut lines,
                "state",
                format_schedule_state_color(entry.state, color),
                color,
            );
            push_field_color(
                &mut lines,
                "last started",
                entry.run_state.last_started.as_deref().unwrap_or("never"),
                color,
            );
            push_field_color(
                &mut lines,
                "last finished",
                entry.run_state.last_finished.as_deref().unwrap_or("never"),
                color,
            );
            push_field_color(
                &mut lines,
                "last result",
                format_schedule_run_result_color(entry.run_state.last_result, color),
                color,
            );
            if let Some(error) = entry.run_state.last_error.as_deref() {
                push_error_field_color(&mut lines, "last error", error, color);
            }
        }
    }

    push_section_color(&mut lines, "orphans", color);
    if response.orphans.is_empty() {
        push_bullet_color(&mut lines, "none", color);
    } else {
        for orphan in &response.orphans {
            push_warning_bullet_color(
                &mut lines,
                format!(
                    "{} ({})",
                    orphan.id,
                    format_schedule_backend(orphan.backend)
                ),
                color,
            );
        }
    }

    lines.join("\n")
}

#[cfg(test)]
fn format_schedule_remove_response(
    selector: &RemoveScheduleSelector,
    response: &kbolt_types::ScheduleRemoveResponse,
) -> String {
    format_schedule_remove_response_color(selector, response, false)
}

fn format_schedule_remove_response_color(
    selector: &RemoveScheduleSelector,
    response: &kbolt_types::ScheduleRemoveResponse,
    color: bool,
) -> String {
    let mut lines = Vec::with_capacity(3);
    match selector {
        RemoveScheduleSelector::Id { id } => {
            let removed = response.removed_ids.first().map_or(id, |removed| removed);
            if response.removed_ids.is_empty() {
                lines.push("removed: no schedule".to_string());
                lines.push(format!(
                    "{} {}",
                    paint_label(color, "schedule:"),
                    paint_identity(color, removed)
                ));
            } else {
                lines.push(format!(
                    "removed: schedule {}",
                    paint_identity(color, removed)
                ));
            }
        }
        RemoveScheduleSelector::All => {
            let summary = if response.removed_ids.is_empty() {
                "removed: no schedules"
            } else {
                "removed: all schedules"
            };
            lines.push(summary.to_string());
            lines.push(format!("{} all spaces", paint_label(color, "scope:")));
        }
        RemoveScheduleSelector::Scope { scope } => {
            let summary = if response.removed_ids.is_empty() {
                "removed: no schedules"
            } else {
                "removed: schedules"
            };
            lines.push(summary.to_string());
            append_schedule_scope_lines(&mut lines, scope, color);
        }
    }

    lines.join("\n")
}

fn append_schedule_scope_lines(lines: &mut Vec<String>, scope: &ScheduleScope, color: bool) {
    match scope {
        ScheduleScope::All => lines.push(format!("{} all spaces", paint_label(color, "scope:"))),
        ScheduleScope::Space { space } => lines.push(format!(
            "{} {}",
            paint_label(color, "space:"),
            paint_identity(color, space)
        )),
        ScheduleScope::Collections { space, collections } => {
            lines.push(format!(
                "{} {}",
                paint_label(color, "space:"),
                paint_identity(color, space)
            ));
            let collection_names = collections
                .iter()
                .map(|collection| paint_identity(color, collection))
                .collect::<Vec<_>>()
                .join(", ");
            lines.push(format!(
                "{} {collection_names}",
                paint_label(color, "collections:")
            ));
        }
    }
}

fn format_schedule_trigger(trigger: &ScheduleTrigger) -> String {
    match trigger {
        ScheduleTrigger::Every { interval } => format_schedule_interval(interval),
        ScheduleTrigger::Daily { time } => format!("daily at {}", format_schedule_time(time)),
        ScheduleTrigger::Weekly { weekdays, time } => format!(
            "{} at {}",
            format_schedule_weekdays(weekdays),
            format_schedule_time(time)
        ),
    }
}

fn format_schedule_interval(interval: &ScheduleInterval) -> String {
    let suffix = match interval.unit {
        ScheduleIntervalUnit::Minutes => "m",
        ScheduleIntervalUnit::Hours => "h",
    };
    format!("every {}{suffix}", interval.value)
}

fn format_schedule_scope(scope: &ScheduleScope) -> String {
    match scope {
        ScheduleScope::All => "all spaces".to_string(),
        ScheduleScope::Space { space } => format!("space {space}"),
        ScheduleScope::Collections { space, collections } => collections
            .iter()
            .map(|collection| format!("{space}/{collection}"))
            .collect::<Vec<_>>()
            .join(", "),
    }
}

fn format_schedule_backend(backend: ScheduleBackend) -> &'static str {
    match backend {
        ScheduleBackend::Launchd => "launchd",
        ScheduleBackend::SystemdUser => "systemd-user",
    }
}

fn format_schedule_state(state: ScheduleState) -> &'static str {
    match state {
        ScheduleState::Installed => "installed",
        ScheduleState::Drifted => "drifted",
        ScheduleState::TargetMissing => "target missing",
    }
}

fn format_schedule_state_color(state: ScheduleState, color: bool) -> String {
    let label = format_schedule_state(state);
    match state {
        ScheduleState::Installed => label.to_string(),
        ScheduleState::Drifted | ScheduleState::TargetMissing => paint_warning(color, label),
    }
}

fn format_schedule_run_result(result: Option<ScheduleRunResult>) -> &'static str {
    match result {
        Some(ScheduleRunResult::Success) => "success",
        Some(ScheduleRunResult::SkippedLock) => "skipped lock",
        Some(ScheduleRunResult::Failed) => "failed",
        None => "never",
    }
}

fn format_schedule_run_result_color(result: Option<ScheduleRunResult>, color: bool) -> String {
    let label = format_schedule_run_result(result);
    match result {
        Some(ScheduleRunResult::SkippedLock) => paint_warning(color, label),
        Some(ScheduleRunResult::Failed) => paint_error(color, label),
        Some(ScheduleRunResult::Success) | None => label.to_string(),
    }
}

fn format_schedule_weekdays(weekdays: &[ScheduleWeekday]) -> String {
    weekdays
        .iter()
        .map(|weekday| match weekday {
            ScheduleWeekday::Mon => "mon",
            ScheduleWeekday::Tue => "tue",
            ScheduleWeekday::Wed => "wed",
            ScheduleWeekday::Thu => "thu",
            ScheduleWeekday::Fri => "fri",
            ScheduleWeekday::Sat => "sat",
            ScheduleWeekday::Sun => "sun",
        })
        .collect::<Vec<_>>()
        .join(", ")
}

fn format_schedule_time(time: &str) -> String {
    let Some((hour, minute)) = time.split_once(':') else {
        return time.to_string();
    };
    let Ok(mut hour) = hour.parse::<u32>() else {
        return time.to_string();
    };
    let Ok(minute) = minute.parse::<u32>() else {
        return time.to_string();
    };

    let meridiem = if hour >= 12 { "PM" } else { "AM" };
    if hour == 0 {
        hour = 12;
    } else if hour > 12 {
        hour -= 12;
    }

    format!("{hour}:{minute:02} {meridiem}")
}

#[cfg(test)]
fn format_eval_run_report(report: &EvalRunReport) -> String {
    format_eval_run_report_color(report, false)
}

fn format_eval_run_report_color(report: &EvalRunReport, color: bool) -> String {
    let mut lines = vec!["eval complete".to_string()];

    push_section_color(&mut lines, "summary", color);
    push_bullet_color(&mut lines, format!("{} case(s)", report.total_cases), color);

    push_section_color(&mut lines, "modes", color);
    for mode in &report.modes {
        push_bullet_color(
            &mut lines,
            format_eval_mode_label(&mode.mode, mode.no_rerank),
            color,
        );
        push_field_color(
            &mut lines,
            "nDCG@10",
            format!("{:.3}", mode.ndcg_at_10),
            color,
        );
        push_field_color(
            &mut lines,
            "Recall@10",
            format!("{:.3}", mode.recall_at_10),
            color,
        );
        push_field_color(
            &mut lines,
            "MRR@10",
            format!("{:.3}", mode.mrr_at_10),
            color,
        );
        push_field_color(
            &mut lines,
            "p50",
            format!("{}ms", mode.latency_p50_ms),
            color,
        );
        push_field_color(
            &mut lines,
            "p95",
            format!("{}ms", mode.latency_p95_ms),
            color,
        );
    }

    if !report.failed_modes.is_empty() {
        push_section_color(&mut lines, "failed", color);
        for failure in &report.failed_modes {
            push_error_bullet_color(
                &mut lines,
                format!(
                    "{}: {}",
                    format_eval_mode_label(&failure.mode, failure.no_rerank),
                    failure.error
                ),
                color,
            );
        }
    }

    push_section_color(&mut lines, "attention", color);
    let mut has_findings = false;
    for mode in &report.modes {
        for query in &mode.queries {
            let perfect_recall = query.matched_paths.len() == relevant_judgment_count(query);
            let perfect_rank = query.first_relevant_rank == Some(1);
            if perfect_recall && perfect_rank {
                continue;
            }

            has_findings = true;
            push_bullet_color(
                &mut lines,
                format!(
                    "{}: {}",
                    format_eval_mode_label(&mode.mode, mode.no_rerank),
                    query.query
                ),
                color,
            );
            push_field_color(
                &mut lines,
                "first relevant",
                query
                    .first_relevant_rank
                    .map(|rank| rank.to_string())
                    .unwrap_or_else(|| "none".to_string()),
                color,
            );
            push_field_color(
                &mut lines,
                "expected",
                format_eval_judgments(&query.judgments),
                color,
            );
            push_field_color(
                &mut lines,
                "returned",
                if query.returned_paths.is_empty() {
                    "none".to_string()
                } else {
                    query.returned_paths.join(", ")
                },
                color,
            );
        }
    }
    if !has_findings {
        push_bullet_color(&mut lines, "none", color);
    }

    lines.join("\n")
}

pub fn format_eval_import_report(report: &EvalImportReport) -> String {
    format_eval_import_report_color(report, false)
}

pub fn format_eval_import_report_color(report: &EvalImportReport, color: bool) -> String {
    let mut lines = Vec::new();
    lines.push(format!("benchmark imported: {}", report.dataset));

    push_section_color(&mut lines, "paths", color);
    push_bullet_color(
        &mut lines,
        format!("source: {}", paint_identity(color, &report.source)),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!("output: {}", paint_identity(color, &report.output_dir)),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!("corpus: {}", paint_identity(color, &report.corpus_dir)),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!("manifest: {}", paint_identity(color, &report.manifest_path)),
        color,
    );

    push_section_color(&mut lines, "contents", color);
    push_bullet_color(
        &mut lines,
        format!("{} document(s)", report.document_count),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!("{} query(s)", report.query_count),
        color,
    );
    push_bullet_color(
        &mut lines,
        format!("{} judgment(s)", report.judgment_count),
        color,
    );

    push_section_color(&mut lines, "next", color);
    push_action_hint_color(
        &mut lines,
        "create the benchmark space if needed",
        format!("kbolt space add {}", shell_quote_arg(&report.default_space)),
        color,
    );
    push_action_hint_color(
        &mut lines,
        "register the corpus",
        format!(
            "kbolt --space {} collection add {} --name {} --no-index",
            shell_quote_arg(&report.default_space),
            shell_quote_arg(&report.corpus_dir),
            shell_quote_arg(&report.collection),
        ),
        color,
    );
    push_action_hint_color(
        &mut lines,
        "index it",
        format!(
            "kbolt --space {} update --collection {}",
            shell_quote_arg(&report.default_space),
            shell_quote_arg(&report.collection),
        ),
        color,
    );
    push_action_hint_color(
        &mut lines,
        "run eval",
        format!(
            "kbolt eval run --file {}",
            shell_quote_arg(&report.manifest_path)
        ),
        color,
    );

    lines.join("\n")
}

fn relevant_judgment_count(query: &kbolt_types::EvalQueryReport) -> usize {
    query
        .judgments
        .iter()
        .filter(|judgment| judgment.relevance > 0)
        .count()
}

fn format_eval_judgments(judgments: &[kbolt_types::EvalJudgment]) -> String {
    judgments
        .iter()
        .map(|judgment| format!("{}(rel={})", judgment.path, judgment.relevance))
        .collect::<Vec<_>>()
        .join(", ")
}

fn format_eval_mode_label(mode: &SearchMode, no_rerank: bool) -> &'static str {
    match (mode, no_rerank) {
        (SearchMode::Keyword, _) => "keyword",
        (SearchMode::Auto, true) => "auto",
        (SearchMode::Auto, false) => "auto+rerank",
        (SearchMode::Semantic, _) => "semantic",
        (SearchMode::Deep, true) => "deep-norerank",
        (SearchMode::Deep, false) => "deep",
    }
}

// Quote a shell argument so a user-facing suggested command remains executable
// when it contains whitespace or other shell metacharacters. Uses POSIX
// single-quote wrapping; safe tokens are returned as-is.
fn shell_quote_arg(arg: &str) -> String {
    let is_safe = !arg.is_empty()
        && arg.chars().all(|c| {
            c.is_ascii_alphanumeric()
                || matches!(c, '-' | '_' | '.' | '/' | ',' | ':' | '+' | '@' | '=')
        });
    if is_safe {
        arg.to_string()
    } else {
        format!("'{}'", arg.replace('\'', "'\\''"))
    }
}

fn format_chunk_read_command(space: &str, locator: &str) -> String {
    format!(
        "kbolt --space {} get {}",
        shell_quote_arg(space),
        shell_quote_arg(locator)
    )
}

#[cfg(test)]
mod tests {
    use std::ffi::OsString;
    use std::sync::{Mutex, OnceLock};
    use std::{
        fs,
        path::{Path, PathBuf},
    };

    use tempfile::tempdir;

    use super::{
        active_space_name_for_status, ansi_code, append_update_error_lines,
        format_additional_match_label, format_chunk_read_command, format_chunk_response,
        format_collection_add_result, format_collection_add_result_color,
        format_collection_describe_response, format_collection_info,
        format_collection_remove_response, format_collection_rename_response,
        format_compact_chunk_locator, format_doctor_report, format_document_response,
        format_elapsed_ms, format_eval_import_report, format_eval_import_report_color,
        format_eval_run_report, format_eval_run_report_color, format_file_list,
        format_file_list_color, format_local_report, format_models_list, format_models_list_color,
        format_multi_get_response, format_multi_get_response_color,
        format_multi_get_response_color_with_chunk_locators, format_optional_search_signal,
        format_schedule_add_response, format_schedule_remove_response,
        format_schedule_remove_response_color, format_schedule_status_response,
        format_schedule_status_response_color, format_search_result_path,
        format_space_add_response, format_space_current_response, format_space_default_response,
        format_space_describe_response, format_space_remove_default_response,
        format_space_remove_response, format_space_rename_response, format_status_response,
        format_update_report, format_update_report_color, group_search_results,
        is_expected_unindexed_storage_warning, paint, paint_action, paint_error, paint_identity,
        paint_warning, parse_editor_command, resolve_editor_command, resolve_no_rerank_for_mode,
        shell_quote_arg, truncate_snippet, CliAdapter, CliGetOptions, CliSearchOptions, CliStyle,
    };
    use kbolt_core::engine::Engine;
    use kbolt_types::{
        AddCollectionRequest, AddCollectionResult, ChunkResponse, CollectionInfo, CollectionStatus,
        DiskUsage, DoctorCheck, DoctorCheckStatus, DoctorReport, DoctorSetupStatus,
        DocumentResponse, EvalImportReport, EvalJudgment, EvalModeReport, EvalQueryReport,
        EvalRunReport, FileEntry, FileError, InitialIndexingBlock, InitialIndexingOutcome,
        LocalAction, LocalReport, ModelInfo, MultiGetItem, MultiGetItemKind, MultiGetResponse,
        OmitReason, OmittedItem, RemoveScheduleSelector, ScheduleAddResponse, ScheduleBackend,
        ScheduleDefinition, ScheduleInterval, ScheduleIntervalUnit, ScheduleOrphan,
        ScheduleRemoveResponse, ScheduleRunResult, ScheduleRunState, ScheduleScope, ScheduleState,
        ScheduleStatusEntry, ScheduleStatusResponse, ScheduleTrigger, ScheduleWeekday,
        SearchEmptyReason, SearchMode, SearchResult, SearchResultChunk, SpaceStatus,
        StatusResponse, UpdateReport,
    };

    struct EnvRestore {
        home: Option<OsString>,
        config_home: Option<OsString>,
        cache_home: Option<OsString>,
        visual: Option<OsString>,
        editor: Option<OsString>,
    }

    impl EnvRestore {
        fn capture() -> Self {
            Self {
                home: std::env::var_os("HOME"),
                config_home: std::env::var_os("XDG_CONFIG_HOME"),
                cache_home: std::env::var_os("XDG_CACHE_HOME"),
                visual: std::env::var_os("VISUAL"),
                editor: std::env::var_os("EDITOR"),
            }
        }
    }

    impl Drop for EnvRestore {
        fn drop(&mut self) {
            match &self.home {
                Some(path) => std::env::set_var("HOME", path),
                None => std::env::remove_var("HOME"),
            }
            match &self.config_home {
                Some(path) => std::env::set_var("XDG_CONFIG_HOME", path),
                None => std::env::remove_var("XDG_CONFIG_HOME"),
            }
            match &self.cache_home {
                Some(path) => std::env::set_var("XDG_CACHE_HOME", path),
                None => std::env::remove_var("XDG_CACHE_HOME"),
            }
            match &self.visual {
                Some(value) => std::env::set_var("VISUAL", value),
                None => std::env::remove_var("VISUAL"),
            }
            match &self.editor {
                Some(value) => std::env::set_var("EDITOR", value),
                None => std::env::remove_var("EDITOR"),
            }
        }
    }

    fn with_isolated_xdg_dirs<T>(run: impl FnOnce() -> T) -> T {
        static ENV_LOCK: OnceLock<Mutex<()>> = OnceLock::new();
        let lock = ENV_LOCK.get_or_init(|| Mutex::new(()));
        let _guard = lock.lock().expect("lock env mutex");
        let _restore = EnvRestore::capture();

        let root = tempdir().expect("create temp root");
        std::env::set_var("HOME", root.path());
        std::env::set_var("XDG_CONFIG_HOME", root.path().join("config-home"));
        std::env::set_var("XDG_CACHE_HOME", root.path().join("cache-home"));

        run()
    }

    fn new_collection_dir(root: &Path, name: &str) -> PathBuf {
        let path = root.join(name);
        fs::create_dir_all(&path).expect("create collection directory");
        path
    }

    #[test]
    fn editor_command_resolution_prefers_visual_then_editor_then_vi() {
        with_isolated_xdg_dirs(|| {
            std::env::set_var("VISUAL", "nvim -f");
            std::env::set_var("EDITOR", "vim");
            let from_visual = resolve_editor_command().expect("resolve visual");
            assert_eq!(from_visual, vec!["nvim".to_string(), "-f".to_string()]);

            std::env::remove_var("VISUAL");
            let from_editor = resolve_editor_command().expect("resolve editor");
            assert_eq!(from_editor, vec!["vim".to_string()]);

            std::env::remove_var("EDITOR");
            let fallback = resolve_editor_command().expect("resolve fallback");
            assert_eq!(fallback, vec!["vi".to_string()]);
        });
    }

    #[test]
    fn parse_editor_command_rejects_invalid_shell_words() {
        let err = parse_editor_command("'").expect_err("invalid shell words should fail");
        assert!(
            err.to_string().contains("invalid editor command"),
            "unexpected error: {err}"
        );
    }

    #[test]
    fn eval_run_report_formats_summary_and_attention_queries() {
        let output = format_eval_run_report(&EvalRunReport {
            total_cases: 1,
            modes: vec![
                EvalModeReport {
                    mode: SearchMode::Keyword,
                    no_rerank: true,
                    ndcg_at_10: 1.0,
                    recall_at_10: 1.0,
                    mrr_at_10: 1.0,
                    latency_p50_ms: 2,
                    latency_p95_ms: 3,
                    queries: vec![EvalQueryReport {
                        query: "trait object generic".to_string(),
                        space: Some("default".to_string()),
                        collections: vec!["rust".to_string()],
                        judgments: vec![EvalJudgment {
                            path: "rust/guides/traits.md".to_string(),
                            relevance: 1,
                        }],
                        returned_paths: vec!["rust/guides/traits.md".to_string()],
                        matched_paths: vec!["rust/guides/traits.md".to_string()],
                        first_relevant_rank: Some(1),
                        elapsed_ms: 2,
                    }],
                },
                EvalModeReport {
                    mode: SearchMode::Deep,
                    no_rerank: false,
                    ndcg_at_10: 0.0,
                    recall_at_10: 0.0,
                    mrr_at_10: 0.0,
                    latency_p50_ms: 8,
                    latency_p95_ms: 12,
                    queries: vec![EvalQueryReport {
                        query: "trait object generic".to_string(),
                        space: Some("default".to_string()),
                        collections: vec!["rust".to_string()],
                        judgments: vec![EvalJudgment {
                            path: "rust/guides/traits.md".to_string(),
                            relevance: 1,
                        }],
                        returned_paths: vec!["rust/overview.md".to_string()],
                        matched_paths: vec![],
                        first_relevant_rank: None,
                        elapsed_ms: 8,
                    }],
                },
            ],
            failed_modes: vec![kbolt_types::EvalModeFailure {
                mode: SearchMode::Semantic,
                no_rerank: true,
                error: "model not available".to_string(),
            }],
        });

        assert!(output.starts_with("eval complete"));
        assert!(output.contains("summary:\n- 1 case(s)"));
        assert!(output.contains("modes:\n- keyword"));
        assert!(output.contains("  nDCG@10: 1.000"));
        assert!(output.contains("  Recall@10: 1.000"));
        assert!(output.contains("  MRR@10: 1.000"));
        assert!(output.contains("  p50: 2ms"));
        assert!(output.contains("  p95: 3ms"));
        assert!(output.contains("- deep"));
        assert!(output.contains("  nDCG@10: 0.000"));
        assert!(output.contains("failed:\n- semantic: model not available"));
        assert!(output.contains("attention:\n- deep: trait object generic"));
        assert!(output.contains("  first relevant: none"));
        assert!(output.contains("  expected: rust/guides/traits.md(rel=1)"));
        assert!(output.contains("  returned: rust/overview.md"));
    }

    #[test]
    fn eval_run_report_formats_empty_attention_state() {
        let output = format_eval_run_report(&EvalRunReport {
            total_cases: 1,
            modes: vec![EvalModeReport {
                mode: SearchMode::Auto,
                no_rerank: false,
                ndcg_at_10: 1.0,
                recall_at_10: 1.0,
                mrr_at_10: 1.0,
                latency_p50_ms: 4,
                latency_p95_ms: 5,
                queries: vec![EvalQueryReport {
                    query: "trait object generic".to_string(),
                    space: Some("default".to_string()),
                    collections: vec!["rust".to_string()],
                    judgments: vec![EvalJudgment {
                        path: "rust/guides/traits.md".to_string(),
                        relevance: 1,
                    }],
                    returned_paths: vec!["rust/guides/traits.md".to_string()],
                    matched_paths: vec!["rust/guides/traits.md".to_string()],
                    first_relevant_rank: Some(1),
                    elapsed_ms: 4,
                }],
            }],
            failed_modes: Vec::new(),
        });

        assert!(output.contains("modes:\n- auto+rerank"));
        assert!(output.contains("attention:\n- none"));
        assert!(!output.contains("failed:"));
    }

    #[test]
    fn colored_eval_run_report_marks_failed_modes_as_errors() {
        let output = format_eval_run_report_color(
            &EvalRunReport {
                total_cases: 1,
                modes: Vec::new(),
                failed_modes: vec![kbolt_types::EvalModeFailure {
                    mode: SearchMode::Semantic,
                    no_rerank: true,
                    error: "model not available".to_string(),
                }],
            },
            true,
        );

        assert!(
            output.contains("\x1b[31msemantic: model not available\x1b[0m"),
            "failed eval modes should be error-colored:\n{output}"
        );
        assert!(
            output.contains("\x1b[1;36mattention:\x1b[0m\n\x1b[90m-\x1b[0m none"),
            "unexpected output:\n{output}"
        );
    }

    #[test]
    fn eval_import_report_formats_next_steps() {
        let output = format_eval_import_report(&EvalImportReport {
            dataset: "scifact".to_string(),
            source: "/tmp/scifact-source".to_string(),
            output_dir: "/tmp/scifact-bench".to_string(),
            corpus_dir: "/tmp/scifact-bench/corpus".to_string(),
            manifest_path: "/tmp/scifact-bench/eval.toml".to_string(),
            default_space: "bench".to_string(),
            collection: "scifact".to_string(),
            document_count: 2,
            query_count: 2,
            judgment_count: 3,
        });

        assert!(output.contains("benchmark imported: scifact"));
        assert!(output.contains("paths:"));
        assert!(output.contains("- corpus: /tmp/scifact-bench/corpus"));
        assert!(output.contains("contents:"));
        assert!(output.contains("- 2 document(s)"));
        assert!(output.contains("- 2 query(s)"));
        assert!(output.contains("- 3 judgment(s)"));
        assert!(output.contains("kbolt space add bench"));
        assert!(output.contains("kbolt eval run --file /tmp/scifact-bench/eval.toml"));
    }

    #[test]
    fn models_list_reports_role_binding_readiness() {
        with_isolated_xdg_dirs(|| {
            let engine = Engine::new(None).expect("create engine");
            let adapter = CliAdapter::new(engine);

            let output = adapter.models_list().expect("list models");
            assert!(
                output.starts_with("models:\n"),
                "unexpected output: {output}"
            );
            assert!(
                output.contains("- embedder: not configured"),
                "unexpected output: {output}"
            );
            assert!(
                output.contains("- reranker: not configured"),
                "unexpected output: {output}"
            );
            assert!(
                output.contains("- expander: not configured"),
                "unexpected output: {output}"
            );
        });
    }

    #[test]
    fn models_list_surfaces_not_ready_issue_without_provider_dump() {
        let output = format_models_list(&kbolt_types::ModelStatus {
            embedder: ModelInfo {
                configured: true,
                ready: false,
                profile: Some("kbolt_local_embed".to_string()),
                kind: Some("llama_cpp_server".to_string()),
                operation: Some("embedding".to_string()),
                model: Some("embeddinggemma".to_string()),
                endpoint: Some("http://127.0.0.1:8101".to_string()),
                issue: Some("endpoint is unreachable".to_string()),
            },
            reranker: ModelInfo {
                configured: true,
                ready: true,
                profile: Some("kbolt_local_rerank".to_string()),
                kind: Some("llama_cpp_server".to_string()),
                operation: Some("reranking".to_string()),
                model: Some("qwen3-reranker".to_string()),
                endpoint: Some("http://127.0.0.1:8102".to_string()),
                issue: None,
            },
            expander: ModelInfo {
                configured: false,
                ready: false,
                profile: None,
                kind: None,
                operation: None,
                model: None,
                endpoint: None,
                issue: None,
            },
        });

        assert!(output.contains("- embedder: not ready (embeddinggemma)"));
        assert!(output.contains("  issue: endpoint is unreachable"));
        assert!(output.contains("- reranker: ready (qwen3-reranker)"));
        assert!(output.contains("- expander: not configured"));
        assert!(!output.contains("profile="), "unexpected output:\n{output}");
        assert!(
            !output.contains("endpoint=http"),
            "unexpected output:\n{output}"
        );
    }

    #[test]
    fn colored_models_list_marks_unavailable_model_states_as_warnings() {
        let output = format_models_list_color(
            &kbolt_types::ModelStatus {
                embedder: ModelInfo {
                    configured: true,
                    ready: false,
                    profile: Some("kbolt_local_embed".to_string()),
                    kind: Some("llama_cpp_server".to_string()),
                    operation: Some("embedding".to_string()),
                    model: Some("embeddinggemma".to_string()),
                    endpoint: Some("http://127.0.0.1:8101".to_string()),
                    issue: Some("endpoint is unreachable".to_string()),
                },
                reranker: ModelInfo {
                    configured: true,
                    ready: true,
                    profile: Some("kbolt_local_rerank".to_string()),
                    kind: Some("llama_cpp_server".to_string()),
                    operation: Some("reranking".to_string()),
                    model: Some("qwen3-reranker".to_string()),
                    endpoint: Some("http://127.0.0.1:8102".to_string()),
                    issue: None,
                },
                expander: ModelInfo {
                    configured: false,
                    ready: false,
                    profile: None,
                    kind: None,
                    operation: None,
                    model: None,
                    endpoint: None,
                    issue: None,
                },
            },
            true,
        );

        assert!(
            output.contains("embedder: \x1b[33mnot ready\x1b[0m (embeddinggemma)"),
            "unexpected output:\n{output}"
        );
        assert!(
            output.contains("issue: \x1b[33mendpoint is unreachable\x1b[0m"),
            "unexpected output:\n{output}"
        );
        assert!(
            output.contains("reranker: ready (qwen3-reranker)"),
            "unexpected output:\n{output}"
        );
        assert!(
            output.contains("expander: \x1b[33mnot configured\x1b[0m"),
            "unexpected output:\n{output}"
        );
    }

    #[test]
    fn doctor_report_success_is_concise() {
        let output = format_doctor_report(&DoctorReport {
            setup_status: DoctorSetupStatus::Configured,
            config_file: Some(PathBuf::from("/tmp/kbolt/index.toml")),
            config_dir: Some(PathBuf::from("/tmp/kbolt")),
            cache_dir: Some(PathBuf::from("/tmp/cache/kbolt")),
            ready: true,
            checks: vec![
                DoctorCheck {
                    id: "roles.embedder.bound".to_string(),
                    scope: "roles.embedder".to_string(),
                    status: DoctorCheckStatus::Pass,
                    elapsed_ms: 0,
                    message: "bound".to_string(),
                    fix: None,
                },
                DoctorCheck {
                    id: "roles.expander.bound".to_string(),
                    scope: "roles.expander".to_string(),
                    status: DoctorCheckStatus::Warn,
                    elapsed_ms: 0,
                    message: "role is not configured".to_string(),
                    fix: Some("configure expander".to_string()),
                },
            ],
        });

        assert!(
            output.contains("kbolt is ready"),
            "unexpected output:\n{output}"
        );
        assert!(output.contains("configured:"));
        assert!(output.contains("- embedder"));
        assert!(output.contains("not enabled:"));
        assert!(output.contains("- expander"));
        assert!(
            !output.contains("PASS"),
            "should not show raw check status in success case"
        );
    }

    #[test]
    fn doctor_report_shows_failures_with_fixes() {
        let output = format_doctor_report(&DoctorReport {
            setup_status: DoctorSetupStatus::Configured,
            config_file: Some(PathBuf::from("/tmp/kbolt/index.toml")),
            config_dir: Some(PathBuf::from("/tmp/kbolt")),
            cache_dir: Some(PathBuf::from("/tmp/cache/kbolt")),
            ready: false,
            checks: vec![DoctorCheck {
                id: "roles.embedder.reachable".to_string(),
                scope: "roles.embedder".to_string(),
                status: DoctorCheckStatus::Fail,
                elapsed_ms: 17,
                message: "endpoint is unreachable".to_string(),
                fix: Some("Start the embedding server.".to_string()),
            }],
        });

        assert!(
            output.contains("kbolt has issues"),
            "unexpected output:\n{output}"
        );
        assert!(output.contains("failures:"));
        assert!(output.contains("endpoint is unreachable"));
        assert!(output.contains("fix: Start the embedding server."));
    }

    #[test]
    fn doctor_report_missing_config_guides_to_setup() {
        let output = format_doctor_report(&DoctorReport {
            setup_status: DoctorSetupStatus::ConfigMissing,
            config_file: None,
            config_dir: None,
            cache_dir: None,
            ready: false,
            checks: vec![],
        });

        assert!(
            output.contains("kbolt is not set up"),
            "unexpected output:\n{output}"
        );
        assert!(output.contains("kbolt setup local"));
    }

    #[test]
    fn doctor_report_invalid_config_groups_failures_and_config_path() {
        let output = format_doctor_report(&DoctorReport {
            setup_status: DoctorSetupStatus::ConfigInvalid,
            config_file: Some(PathBuf::from("/tmp/kbolt/index.toml")),
            config_dir: Some(PathBuf::from("/tmp/kbolt")),
            cache_dir: Some(PathBuf::from("/tmp/cache/kbolt")),
            ready: false,
            checks: vec![DoctorCheck {
                id: "config.parse".to_string(),
                scope: "config".to_string(),
                status: DoctorCheckStatus::Fail,
                elapsed_ms: 0,
                message: "failed to parse config".to_string(),
                fix: Some("Fix /tmp/kbolt/index.toml.".to_string()),
            }],
        });

        assert!(
            output.starts_with("kbolt configuration is invalid\n"),
            "unexpected output:\n{output}"
        );
        assert!(output.contains("failures:"));
        assert!(output.contains("- failed to parse config"));
        assert!(output.contains("fix: Fix /tmp/kbolt/index.toml."));
        assert!(output.contains("config:"));
        assert!(output.contains("- /tmp/kbolt/index.toml"));
    }

    #[test]
    fn doctor_report_not_configured_guides_to_setup() {
        let output = format_doctor_report(&DoctorReport {
            setup_status: DoctorSetupStatus::NotConfigured,
            config_file: Some(PathBuf::from("/tmp/kbolt/index.toml")),
            config_dir: Some(PathBuf::from("/tmp/kbolt")),
            cache_dir: Some(PathBuf::from("/tmp/cache/kbolt")),
            ready: false,
            checks: vec![],
        });

        assert!(
            output.starts_with("kbolt is installed but no inference roles are configured\n"),
            "unexpected output:\n{output}"
        );
        assert!(output.contains("next:"));
        assert!(output.contains("- kbolt setup local"));
    }

    #[test]
    fn doctor_report_treats_unindexed_storage_as_expected_next_step() {
        let output = format_doctor_report(&DoctorReport {
            setup_status: DoctorSetupStatus::Configured,
            config_file: Some(PathBuf::from("/tmp/kbolt/index.toml")),
            config_dir: Some(PathBuf::from("/tmp/kbolt")),
            cache_dir: Some(PathBuf::from("/tmp/cache/kbolt")),
            ready: true,
            checks: vec![
                DoctorCheck {
                    id: "roles.embedder.bound".to_string(),
                    scope: "roles.embedder".to_string(),
                    status: DoctorCheckStatus::Pass,
                    elapsed_ms: 0,
                    message: "bound".to_string(),
                    fix: None,
                },
                DoctorCheck {
                    id: "storage.sqlite_readable".to_string(),
                    scope: "storage".to_string(),
                    status: DoctorCheckStatus::Warn,
                    elapsed_ms: 0,
                    message: "index database does not exist yet: /tmp/cache/kbolt/meta.sqlite"
                        .to_string(),
                    fix: Some(
                        "Run `kbolt update` after adding a collection to build the index."
                            .to_string(),
                    ),
                },
                DoctorCheck {
                    id: "storage.search_indexes_readable".to_string(),
                    scope: "storage".to_string(),
                    status: DoctorCheckStatus::Warn,
                    elapsed_ms: 0,
                    message: "search index directory does not exist yet: /tmp/cache/kbolt/spaces"
                        .to_string(),
                    fix: Some(
                        "Run `kbolt update` after adding a collection to build search indexes."
                            .to_string(),
                    ),
                },
            ],
        });

        assert!(
            output.contains("kbolt is ready"),
            "unexpected output:\n{output}"
        );
        assert!(output.contains("indexing:"), "unexpected output:\n{output}");
        assert!(
            output.contains("no collections have been indexed yet"),
            "unexpected output:\n{output}"
        );
        assert!(output.contains("next:"), "unexpected output:\n{output}");
        assert!(
            output.contains("kbolt collection add /path/to/docs"),
            "unexpected output:\n{output}"
        );
        assert!(
            output.contains("or, if collections are already registered: kbolt update"),
            "unexpected output:\n{output}"
        );
        assert!(
            !output.contains("warnings:"),
            "unexpected output:\n{output}"
        );
    }

    #[test]
    fn expected_unindexed_storage_warning_matches_only_storage_warns() {
        let warn = DoctorCheck {
            id: "storage.sqlite_readable".to_string(),
            scope: "storage".to_string(),
            status: DoctorCheckStatus::Warn,
            elapsed_ms: 0,
            message: "missing".to_string(),
            fix: None,
        };
        assert!(is_expected_unindexed_storage_warning(&warn));

        let fail = DoctorCheck {
            status: DoctorCheckStatus::Fail,
            ..warn.clone()
        };
        assert!(!is_expected_unindexed_storage_warning(&fail));

        let other = DoctorCheck {
            id: "roles.expander.bound".to_string(),
            ..warn
        };
        assert!(!is_expected_unindexed_storage_warning(&other));
    }

    #[test]
    fn local_report_shows_ready_services_and_hides_internals() {
        let output = format_local_report(&LocalReport {
            action: LocalAction::Setup,
            config_file: PathBuf::from("/tmp/kbolt/index.toml"),
            cache_dir: PathBuf::from("/tmp/cache/kbolt"),
            llama_server_path: Some(PathBuf::from("/opt/homebrew/bin/llama-server")),
            ready: true,
            notes: vec![],
            services: vec![
                kbolt_types::LocalServiceReport {
                    name: "embedder".to_string(),
                    provider: "kbolt_local_embed".to_string(),
                    enabled: true,
                    configured: true,
                    managed: true,
                    running: true,
                    ready: true,
                    model: "embeddinggemma".to_string(),
                    model_path: PathBuf::from("/tmp/cache/kbolt/models/embedder/model.gguf"),
                    endpoint: "http://127.0.0.1:8101".to_string(),
                    port: 8101,
                    pid: Some(42),
                    pid_file: PathBuf::from("/tmp/cache/kbolt/run/embedder.pid"),
                    log_file: PathBuf::from("/tmp/cache/kbolt/logs/embedder.log"),
                    issue: None,
                },
                kbolt_types::LocalServiceReport {
                    name: "expander".to_string(),
                    provider: "kbolt_local_expand".to_string(),
                    enabled: false,
                    configured: false,
                    managed: false,
                    running: false,
                    ready: false,
                    model: "qwen3-1.7b".to_string(),
                    model_path: PathBuf::from("/tmp/cache/kbolt/models/expander/model.gguf"),
                    endpoint: "http://127.0.0.1:8103".to_string(),
                    port: 8103,
                    pid: None,
                    pid_file: PathBuf::from("/tmp/cache/kbolt/run/expander.pid"),
                    log_file: PathBuf::from("/tmp/cache/kbolt/logs/expander.log"),
                    issue: Some("not configured".to_string()),
                },
            ],
        });

        assert!(
            output.contains("local setup complete"),
            "unexpected output:\n{output}"
        );
        assert!(output.contains("- embedder (embeddinggemma)"));
        assert!(output.contains("not configured:"));
        assert!(output.contains("- expander"));
        assert!(output.contains("/tmp/kbolt/index.toml"));
        assert!(output.contains("kbolt collection add"));
        assert!(
            !output.contains("pid"),
            "should not expose pid in default output"
        );
        assert!(
            !output.contains("log_file"),
            "should not expose log_file in default output"
        );
        assert!(
            !output.contains("model_path"),
            "should not expose model_path in default output"
        );
    }

    #[test]
    fn local_report_surfaces_notes() {
        let output = format_local_report(&LocalReport {
            action: LocalAction::Setup,
            config_file: PathBuf::from("/tmp/kbolt/index.toml"),
            cache_dir: PathBuf::from("/tmp/cache/kbolt"),
            llama_server_path: Some(PathBuf::from("/opt/homebrew/bin/llama-server")),
            ready: true,
            notes: vec![
                "moved incompatible old config to /tmp/index.toml.invalid.bak".to_string(),
                "started embedder on http://127.0.0.1:8101".to_string(),
            ],
            services: vec![],
        });

        assert!(output.contains("notes:"), "unexpected output:\n{output}");
        assert!(
            output.contains("moved incompatible old config"),
            "unexpected output:\n{output}"
        );
        assert!(
            output.contains("started embedder on http://127.0.0.1:8101"),
            "unexpected output:\n{output}"
        );
    }

    #[test]
    fn local_report_shows_issues_when_not_ready() {
        let output = format_local_report(&LocalReport {
            action: LocalAction::Setup,
            config_file: PathBuf::from("/tmp/kbolt/index.toml"),
            cache_dir: PathBuf::from("/tmp/cache/kbolt"),
            llama_server_path: Some(PathBuf::from("/opt/homebrew/bin/llama-server")),
            ready: false,
            notes: vec![],
            services: vec![kbolt_types::LocalServiceReport {
                name: "embedder".to_string(),
                provider: "kbolt_local_embed".to_string(),
                enabled: true,
                configured: true,
                managed: true,
                running: true,
                ready: false,
                model: "embeddinggemma".to_string(),
                model_path: PathBuf::from("/tmp/cache/kbolt/models/embedder/model.gguf"),
                endpoint: "http://127.0.0.1:8101".to_string(),
                port: 8101,
                pid: Some(42),
                pid_file: PathBuf::from("/tmp/cache/kbolt/run/embedder.pid"),
                log_file: PathBuf::from("/tmp/cache/kbolt/logs/embedder.log"),
                issue: Some("service is not ready".to_string()),
            }],
        });

        assert!(
            output.contains("(not ready)"),
            "unexpected output:\n{output}"
        );
        assert!(output.contains("issues:"));
        assert!(output.contains("embedder: service is not ready"));
        assert!(output.contains("log: /tmp/cache/kbolt/logs/embedder.log"));
    }

    #[test]
    fn local_status_report_uses_server_summary_sections() {
        let output = format_local_report(&LocalReport {
            action: LocalAction::Status,
            config_file: PathBuf::from("/tmp/kbolt/index.toml"),
            cache_dir: PathBuf::from("/tmp/cache/kbolt"),
            llama_server_path: Some(PathBuf::from("/opt/homebrew/bin/llama-server")),
            ready: false,
            notes: vec![],
            services: vec![
                kbolt_types::LocalServiceReport {
                    name: "embedder".to_string(),
                    provider: "kbolt_local_embed".to_string(),
                    enabled: true,
                    configured: true,
                    managed: true,
                    running: true,
                    ready: true,
                    model: "embeddinggemma".to_string(),
                    model_path: PathBuf::from("/tmp/cache/kbolt/models/embedder/model.gguf"),
                    endpoint: "http://127.0.0.1:8101".to_string(),
                    port: 8101,
                    pid: Some(42),
                    pid_file: PathBuf::from("/tmp/cache/kbolt/run/embedder.pid"),
                    log_file: PathBuf::from("/tmp/cache/kbolt/logs/embedder.log"),
                    issue: None,
                },
                kbolt_types::LocalServiceReport {
                    name: "reranker".to_string(),
                    provider: "kbolt_local_rerank".to_string(),
                    enabled: true,
                    configured: true,
                    managed: true,
                    running: false,
                    ready: false,
                    model: "qwen3-reranker".to_string(),
                    model_path: PathBuf::from("/tmp/cache/kbolt/models/reranker/model.gguf"),
                    endpoint: "http://127.0.0.1:8102".to_string(),
                    port: 8102,
                    pid: None,
                    pid_file: PathBuf::from("/tmp/cache/kbolt/run/reranker.pid"),
                    log_file: PathBuf::from("/tmp/cache/kbolt/logs/reranker.log"),
                    issue: Some("service is not ready".to_string()),
                },
            ],
        });

        assert!(
            output.starts_with("local servers (not ready)\n"),
            "unexpected output:\n{output}"
        );
        assert!(output.contains("ready:"));
        assert!(output.contains("- embedder (embeddinggemma)"));
        assert!(output.contains("issues:"));
        assert!(output.contains("- reranker: service is not ready"));
        assert!(output.contains("config:"));
    }

    #[test]
    fn local_stop_report_treats_stopped_services_as_expected() {
        let output = format_local_report(&LocalReport {
            action: LocalAction::Stop,
            config_file: PathBuf::from("/tmp/kbolt/index.toml"),
            cache_dir: PathBuf::from("/tmp/cache/kbolt"),
            llama_server_path: Some(PathBuf::from("/opt/homebrew/bin/llama-server")),
            ready: false,
            notes: vec![
                "stopped embedder".to_string(),
                "stopped reranker".to_string(),
            ],
            services: vec![
                kbolt_types::LocalServiceReport {
                    name: "embedder".to_string(),
                    provider: "kbolt_local_embed".to_string(),
                    enabled: true,
                    configured: true,
                    managed: false,
                    running: false,
                    ready: false,
                    model: "embeddinggemma".to_string(),
                    model_path: PathBuf::from("/tmp/cache/kbolt/models/embedder/model.gguf"),
                    endpoint: "http://127.0.0.1:8101".to_string(),
                    port: 8101,
                    pid: None,
                    pid_file: PathBuf::from("/tmp/cache/kbolt/run/embedder.pid"),
                    log_file: PathBuf::from("/tmp/cache/kbolt/logs/embedder.log"),
                    issue: Some("service is not ready".to_string()),
                },
                kbolt_types::LocalServiceReport {
                    name: "reranker".to_string(),
                    provider: "kbolt_local_rerank".to_string(),
                    enabled: true,
                    configured: true,
                    managed: false,
                    running: false,
                    ready: false,
                    model: "qwen3-reranker".to_string(),
                    model_path: PathBuf::from("/tmp/cache/kbolt/models/reranker/model.gguf"),
                    endpoint: "http://127.0.0.1:8102".to_string(),
                    port: 8102,
                    pid: None,
                    pid_file: PathBuf::from("/tmp/cache/kbolt/run/reranker.pid"),
                    log_file: PathBuf::from("/tmp/cache/kbolt/logs/reranker.log"),
                    issue: Some("service is not ready".to_string()),
                },
                kbolt_types::LocalServiceReport {
                    name: "expander".to_string(),
                    provider: "kbolt_local_expand".to_string(),
                    enabled: false,
                    configured: false,
                    managed: false,
                    running: false,
                    ready: false,
                    model: "qwen3-1.7b".to_string(),
                    model_path: PathBuf::from("/tmp/cache/kbolt/models/expander/model.gguf"),
                    endpoint: "http://127.0.0.1:8103".to_string(),
                    port: 8103,
                    pid: None,
                    pid_file: PathBuf::from("/tmp/cache/kbolt/run/expander.pid"),
                    log_file: PathBuf::from("/tmp/cache/kbolt/logs/expander.log"),
                    issue: Some("service is not configured".to_string()),
                },
            ],
        });

        assert!(
            output.starts_with("local servers stopped\n"),
            "unexpected output:\n{output}"
        );
        assert!(
            !output.contains("(not ready)"),
            "unexpected output:\n{output}"
        );
        assert!(!output.contains("issues:"), "unexpected output:\n{output}");
        assert!(
            !output.contains("not configured:"),
            "unexpected output:\n{output}"
        );
        assert!(
            output.contains("stopped embedder"),
            "unexpected output:\n{output}"
        );
        assert!(
            output.contains("stopped reranker"),
            "unexpected output:\n{output}"
        );
    }

    #[test]
    fn truncate_snippet_preserves_short_text() {
        assert_eq!(
            truncate_snippet("line one\nline two", 4),
            "line one\nline two"
        );
    }

    #[test]
    fn truncate_snippet_truncates_long_text() {
        let text = "one\ntwo\nthree\nfour\nfive\nsix";
        let result = truncate_snippet(text, 3);
        assert!(result.contains("one\ntwo\nthree\n"), "unexpected: {result}");
        assert!(result.contains("(+3 more lines)"), "unexpected: {result}");
    }

    #[test]
    fn search_rejects_conflicting_mode_flags() {
        with_isolated_xdg_dirs(|| {
            let adapter = CliAdapter::new(Engine::new(None).expect("create engine"));

            let err = adapter
                .search(CliSearchOptions {
                    space: None,
                    query: "alpha",
                    collections: &[],
                    limit: 10,
                    min_score: 0.0,
                    deep: true,
                    keyword: true,
                    semantic: false,
                    rerank: false,
                    no_rerank: false,
                    debug: false,
                })
                .expect_err("conflicting search flags should fail");
            assert!(
                err.to_string()
                    .contains("only one of --deep, --keyword, or --semantic"),
                "unexpected error: {err}"
            );
        });
    }

    #[test]
    fn empty_index_hint_fresh_install_suggests_scoped_add_collection() {
        with_isolated_xdg_dirs(|| {
            let adapter = CliAdapter::new(Engine::new(None).expect("create engine"));
            let hint = adapter
                .empty_index_hint(None, &[], None)
                .expect("hint should fire on a fresh home");
            assert!(
                hint.contains("no collections registered yet"),
                "unexpected hint: {hint}"
            );
            assert!(
                hint.contains("next:\n- "),
                "hint should use sectioned next steps: {hint}"
            );
            assert!(
                hint.contains("kbolt --space default collection add /path/to/docs"),
                "should suggest --space default on fresh install: {hint}"
            );
        });
    }

    #[test]
    fn empty_index_hint_is_silent_when_any_collection_has_content() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create temp root");
            let engine = Engine::new(None).expect("create engine");
            let coll_path = new_collection_dir(root.path(), "notes");
            fs::write(coll_path.join("a.md"), "hello world\n").expect("write file");
            engine
                .add_collection(AddCollectionRequest {
                    path: coll_path,
                    space: Some("default".to_string()),
                    name: Some("notes".to_string()),
                    description: None,
                    extensions: None,
                    no_index: true,
                })
                .expect("add collection");

            let adapter = CliAdapter::new(engine);
            adapter
                .update(Some("default"), &[], true, false, false)
                .expect("run update");

            let hint = adapter.empty_index_hint(None, &[], None);
            assert!(
                hint.is_none(),
                "expected silent when content exists, got: {hint:?}"
            );
        });
    }

    #[test]
    fn empty_index_hint_is_silent_on_mixed_unscoped_search() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create temp root");
            let engine = Engine::new(None).expect("create engine");

            let hot = new_collection_dir(root.path(), "hot");
            fs::write(hot.join("a.md"), "content\n").expect("write file");
            engine
                .add_collection(AddCollectionRequest {
                    path: hot,
                    space: Some("default".to_string()),
                    name: Some("hot".to_string()),
                    description: None,
                    extensions: None,
                    no_index: true,
                })
                .expect("add hot");

            let cold = new_collection_dir(root.path(), "cold");
            engine
                .add_collection(AddCollectionRequest {
                    path: cold,
                    space: Some("default".to_string()),
                    name: Some("cold".to_string()),
                    description: None,
                    extensions: None,
                    no_index: true,
                })
                .expect("add cold");

            let adapter = CliAdapter::new(engine);
            adapter
                .update(Some("default"), &[], true, false, false)
                .expect("run update");

            let hint = adapter.empty_index_hint(None, &[], None);
            assert!(
                hint.is_none(),
                "expected silent on mixed unscoped, got: {hint:?}"
            );
        });
    }

    #[test]
    fn empty_index_hint_scoped_to_empty_collection_suggests_update() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create temp root");
            let engine = Engine::new(None).expect("create engine");

            let hot = new_collection_dir(root.path(), "hot");
            fs::write(hot.join("a.md"), "content\n").expect("write file");
            engine
                .add_collection(AddCollectionRequest {
                    path: hot,
                    space: Some("default".to_string()),
                    name: Some("hot".to_string()),
                    description: None,
                    extensions: None,
                    no_index: true,
                })
                .expect("add hot");

            let cold = new_collection_dir(root.path(), "cold");
            engine
                .add_collection(AddCollectionRequest {
                    path: cold,
                    space: Some("default".to_string()),
                    name: Some("cold".to_string()),
                    description: None,
                    extensions: None,
                    no_index: true,
                })
                .expect("add cold");

            let adapter = CliAdapter::new(engine);
            adapter
                .update(Some("default"), &[], true, false, false)
                .expect("run update");

            let hint = adapter
                .empty_index_hint(
                    None,
                    &["cold".to_string()],
                    Some(&SearchEmptyReason::UnindexedScope),
                )
                .expect("hint should fire when scoped to an empty collection");

            assert!(
                hint.contains("nothing indexed for this scope"),
                "unexpected hint: {hint}"
            );
            assert!(
                hint.contains("next:\n- "),
                "hint should use sectioned next steps: {hint}"
            );
            assert!(
                hint.contains("kbolt --space default update --collection cold"),
                "should point at update with the actual space: {hint}"
            );
        });
    }

    #[test]
    fn empty_index_hint_shell_quotes_names_with_whitespace() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create temp root");
            let engine = Engine::new(None).expect("create engine");

            let cold = new_collection_dir(root.path(), "cold");
            engine
                .add_collection(AddCollectionRequest {
                    path: cold,
                    space: Some("default".to_string()),
                    name: Some("cold docs".to_string()),
                    description: None,
                    extensions: None,
                    no_index: true,
                })
                .expect("add cold docs");

            let adapter = CliAdapter::new(engine);

            let hint = adapter
                .empty_index_hint(
                    None,
                    &["cold docs".to_string()],
                    Some(&SearchEmptyReason::UnindexedScope),
                )
                .expect("hint should fire");

            assert!(
                hint.contains("kbolt --space default update --collection 'cold docs'"),
                "collection name with whitespace must be single-quoted in the hint: {hint}"
            );
        });
    }

    #[test]
    fn shell_quote_arg_leaves_safe_tokens_alone_and_escapes_risky_ones() {
        assert_eq!(shell_quote_arg("default"), "default");
        assert_eq!(shell_quote_arg("work-notes"), "work-notes");
        assert_eq!(shell_quote_arg("./path/to/docs"), "./path/to/docs");
        assert_eq!(shell_quote_arg("cold docs"), "'cold docs'");
        assert_eq!(shell_quote_arg(""), "''");
        assert_eq!(shell_quote_arg("it's fine"), "'it'\\''s fine'");
    }

    #[test]
    fn resolve_no_rerank_for_mode_matches_cli_contract() {
        assert!(resolve_no_rerank_for_mode(SearchMode::Auto, false, false));
        assert!(!resolve_no_rerank_for_mode(SearchMode::Auto, true, false));
        assert!(!resolve_no_rerank_for_mode(SearchMode::Deep, false, false));
        assert!(resolve_no_rerank_for_mode(SearchMode::Deep, false, true));
        assert!(resolve_no_rerank_for_mode(SearchMode::Keyword, true, false));
        assert!(resolve_no_rerank_for_mode(
            SearchMode::Semantic,
            true,
            false
        ));
    }

    #[test]
    fn search_reports_requested_and_effective_mode_for_auto_keyword_fallback() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create collection root");
            let engine = Engine::new(None).expect("create engine");
            engine.add_space("work", None).expect("add work");

            let work_path = new_collection_dir(root.path(), "work-api");
            engine
                .add_collection(AddCollectionRequest {
                    path: work_path.clone(),
                    space: Some("work".to_string()),
                    name: Some("api".to_string()),
                    description: None,
                    extensions: None,
                    no_index: true,
                })
                .expect("add collection");
            fs::write(work_path.join("a.md"), "fallback token\n").expect("write file");

            let adapter = CliAdapter::new(engine);
            adapter
                .update(Some("work"), &["api".to_string()], true, false, false)
                .expect("run update");

            let output = adapter
                .search(CliSearchOptions {
                    space: Some("work"),
                    query: "fallback",
                    collections: &["api".to_string()],
                    limit: 5,
                    min_score: 0.0,
                    deep: false,
                    keyword: false,
                    semantic: false,
                    rerank: false,
                    no_rerank: false,
                    debug: true,
                })
                .expect("run auto search");

            assert!(
                output.starts_with("debug:\n"),
                "unexpected output: {output}"
            );
            assert!(
                output.contains("mode: auto -> keyword"),
                "unexpected output: {output}"
            );
            assert!(
                output.contains("pipeline: keyword"),
                "unexpected output: {output}"
            );
            assert!(
                output.contains("result count: 1"),
                "unexpected output: {output}"
            );
            assert!(
                output.contains("note: dense retrieval unavailable: not configured"),
                "unexpected output: {output}"
            );
        });
    }

    #[test]
    fn search_normal_output_includes_subtle_capability_fallbacks() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create collection root");
            let engine = Engine::new(None).expect("create engine");
            engine.add_space("work", None).expect("add work");

            let work_path = new_collection_dir(root.path(), "work-api");
            engine
                .add_collection(AddCollectionRequest {
                    path: work_path.clone(),
                    space: Some("work".to_string()),
                    name: Some("api".to_string()),
                    description: None,
                    extensions: None,
                    no_index: true,
                })
                .expect("add collection");
            fs::write(work_path.join("a.md"), "fallback token\n").expect("write file");

            let adapter = CliAdapter::new(engine);
            adapter
                .update(Some("work"), &["api".to_string()], true, false, false)
                .expect("run update");

            let output = adapter
                .search(CliSearchOptions {
                    space: Some("work"),
                    query: "fallback",
                    collections: &["api".to_string()],
                    limit: 5,
                    min_score: 0.0,
                    deep: false,
                    keyword: false,
                    semantic: false,
                    rerank: true,
                    no_rerank: false,
                    debug: false,
                })
                .expect("run auto search");

            assert!(
                output.contains("keyword only (dense unavailable)"),
                "unexpected output: {output}"
            );
            assert!(
                output.contains("rerank skipped"),
                "unexpected output: {output}"
            );
            assert!(
                !output.contains("note:"),
                "normal output should keep fallback messaging subtle: {output}"
            );

            let colored_output = adapter
                .with_color(true)
                .search(CliSearchOptions {
                    space: Some("work"),
                    query: "fallback",
                    collections: &["api".to_string()],
                    limit: 5,
                    min_score: 0.0,
                    deep: false,
                    keyword: false,
                    semantic: false,
                    rerank: true,
                    no_rerank: false,
                    debug: false,
                })
                .expect("run colored auto search");

            assert!(
                colored_output.contains("\x1b[33mkeyword only (dense unavailable)\x1b[0m"),
                "degraded dense fallback should use warning color:\n{colored_output}"
            );
            assert!(
                colored_output.contains("\x1b[33mrerank skipped\x1b[0m"),
                "skipped rerank notice should use warning color:\n{colored_output}"
            );
        });
    }

    #[test]
    fn search_result_paths_include_space_context() {
        assert_eq!(
            format_search_result_path("work", "api/guide.md"),
            "work/api/guide.md"
        );
    }

    fn make_search_result(docid: &str, path: &str, score: f32, text: &str) -> SearchResult {
        SearchResult {
            docid: docid.to_string(),
            chunk: SearchResultChunk {
                locator: format!("{docid}@1"),
                ordinal: 1,
            },
            path: path.to_string(),
            title: format!("title for {path}"),
            space: "work".to_string(),
            collection: "docs".to_string(),
            heading: None,
            text: text.to_string(),
            score,
            signals: None,
        }
    }

    fn make_search_result_in_space(
        docid: &str,
        space: &str,
        path: &str,
        score: f32,
        text: &str,
    ) -> SearchResult {
        SearchResult {
            docid: docid.to_string(),
            chunk: SearchResultChunk {
                locator: format!("{docid}@1"),
                ordinal: 1,
            },
            path: path.to_string(),
            title: format!("title for {path}"),
            space: space.to_string(),
            collection: "docs".to_string(),
            heading: None,
            text: text.to_string(),
            score,
            signals: None,
        }
    }

    #[test]
    fn additional_match_label_uses_heading_or_chunk_ordinal() {
        let mut result = make_search_result("#doc-a", "docs/a.md", 0.95, "alpha");

        result.heading = Some("Guide > Setup".to_string());
        result.chunk.ordinal = 2;
        assert_eq!(
            format_additional_match_label(&result),
            "Guide > Setup (chunk 2)"
        );

        result.heading = None;
        assert_eq!(format_additional_match_label(&result), "chunk 2");
    }

    #[test]
    fn search_chunk_read_command_uses_compact_docid_locator() {
        let locator = format_compact_chunk_locator("#96eafc", 2);
        assert_eq!(
            format_chunk_read_command("uiux", &locator),
            "kbolt --space uiux get '#96eafc@2'"
        );
    }

    #[test]
    fn paint_only_emits_ansi_when_enabled() {
        assert_eq!(paint(false, CliStyle::Identity, "path"), "path");
        assert_eq!(paint(true, CliStyle::Label, "path:"), "path:");
        assert_eq!(
            paint(true, CliStyle::Identity, "path"),
            "\x1b[34mpath\x1b[0m"
        );
        assert_eq!(paint_identity(true, "#409380"), "\x1b[34m#409380\x1b[0m");
        assert_eq!(
            paint_action(true, "kbolt get '#409380@1'"),
            "\x1b[32mkbolt get '#409380@1'\x1b[0m"
        );
        assert_eq!(paint_warning(true, "stale"), "\x1b[33mstale\x1b[0m");
        assert_eq!(paint_error(true, "failed"), "\x1b[31mfailed\x1b[0m");
    }

    #[test]
    fn palette_avoids_dim_and_black_foreground_styles() {
        for style in CliStyle::ALL {
            if let Some(code) = ansi_code(style) {
                assert!(
                    !code.split(';').any(|part| part == "2" || part == "30"),
                    "palette style {code} must not use dim or black foreground"
                );
            }
        }
    }

    #[test]
    fn color_multi_get_keeps_document_body_plain() {
        let output = format_multi_get_response_color(
            &MultiGetResponse {
                items: vec![MultiGetItem::Document(DocumentResponse {
                    docid: "#409380".to_string(),
                    title: "Guide".to_string(),
                    path: "api/guide.md".to_string(),
                    space: "work".to_string(),
                    collection: "api".to_string(),
                    content: "plain body line\n- copyable bullet".to_string(),
                    stale: false,
                    total_lines: 2,
                    returned_lines: 2,
                })],
                omitted: Vec::new(),
                resolved_count: 1,
                warnings: Vec::new(),
            },
            true,
        );

        assert!(output.contains("\x1b[1;36mitems:\x1b[0m"));
        assert!(output.lines().any(|line| line == "plain body line"));
        assert!(output.lines().any(|line| line == "- copyable bullet"));
    }

    #[test]
    fn color_multi_get_warnings_are_warning_colored() {
        let output = format_multi_get_response_color(
            &MultiGetResponse {
                items: Vec::new(),
                omitted: Vec::new(),
                resolved_count: 0,
                warnings: vec!["item not found: api/missing.md".to_string()],
            },
            true,
        );

        assert!(output.contains("\x1b[33mitem not found: api/missing.md\x1b[0m"));
    }

    #[test]
    fn color_multi_get_omitted_items_are_warning_colored() {
        let output = format_multi_get_response_color(
            &MultiGetResponse {
                items: Vec::new(),
                omitted: vec![OmittedItem {
                    kind: MultiGetItemKind::Document,
                    locator: "#large1".to_string(),
                    path: "api/large.md".to_string(),
                    docid: "#large1".to_string(),
                    space: "work".to_string(),
                    size_bytes: 8192,
                    reason: OmitReason::MaxBytes,
                }],
                resolved_count: 1,
                warnings: Vec::new(),
            },
            true,
        );

        assert!(output.contains("\x1b[33mapi/large.md (8.0 KB, size limit)\x1b[0m"));
    }

    #[test]
    fn search_chunk_locator_extends_short_docid_collisions() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create collection root");
            let engine = Engine::new(None).expect("create engine");
            engine.add_space("work", None).expect("add work");

            let docs_path = new_collection_dir(root.path(), "work-docs");
            engine
                .add_collection(AddCollectionRequest {
                    path: docs_path.clone(),
                    space: Some("work".to_string()),
                    name: Some("docs".to_string()),
                    description: None,
                    extensions: None,
                    no_index: true,
                })
                .expect("add collection");

            fs::write(docs_path.join("guide.md"), "# Guide\n\nalpha target\n")
                .expect("write guide");
            let adapter = CliAdapter::new(engine);
            adapter
                .update(Some("work"), &["docs".to_string()], true, false, false)
                .expect("run update");

            let space_row = adapter
                .engine
                .storage()
                .get_space("work")
                .expect("get space");
            let collection_row = adapter
                .engine
                .storage()
                .get_collection(space_row.id, "docs")
                .expect("get collection");
            let document = adapter
                .engine
                .storage()
                .get_document_by_path(collection_row.id, "guide.md")
                .expect("get document")
                .expect("document exists");
            let seventh = if &document.hash[6..7] == "a" {
                "b"
            } else {
                "a"
            };
            let colliding_hash = format!(
                "{}{}{}",
                &document.hash[..6],
                seventh,
                "0".repeat(document.hash.len().saturating_sub(7))
            );
            adapter
                .engine
                .storage()
                .upsert_document(
                    collection_row.id,
                    "collision.md",
                    Some("collision.md"),
                    &colliding_hash,
                    "2026-05-23T12:00:00Z",
                )
                .expect("insert colliding document");

            let chunk = adapter
                .engine
                .storage()
                .get_chunks_for_document(document.id)
                .expect("get chunks")
                .into_iter()
                .next()
                .expect("chunk exists");
            let ordinal = usize::try_from(chunk.seq + 1).expect("positive chunk ordinal");
            let result = SearchResult {
                docid: format!("#{}", &document.hash[..6]),
                chunk: SearchResultChunk {
                    locator: format!("#{}@{ordinal}", document.hash),
                    ordinal,
                },
                path: "guide.md".to_string(),
                title: "Guide".to_string(),
                space: "work".to_string(),
                collection: "docs".to_string(),
                heading: None,
                text: "alpha target".to_string(),
                score: 1.0,
                signals: None,
            };

            let locator = adapter
                .search_chunk_locator(&result)
                .expect("compact locator");
            assert!(
                locator.starts_with(&format!("#{}", &document.hash[..7])),
                "locator should extend the colliding short prefix: {locator}"
            );

            let chunk_output = adapter
                .get(CliGetOptions {
                    space: Some("work"),
                    identifier: &locator,
                    offset: None,
                    limit: None,
                })
                .expect("rendered compact locator should be executable");
            assert!(
                chunk_output.contains("alpha target"),
                "unexpected chunk output:\n{chunk_output}"
            );
            assert!(
                chunk_output.contains(&locator),
                "chunk output should keep the compact handle from the read flow:\n{chunk_output}"
            );

            let full_locator = format!("#{}@{ordinal}", document.hash);
            let full_locator_output = adapter
                .get(CliGetOptions {
                    space: Some("work"),
                    identifier: &full_locator,
                    offset: None,
                    limit: None,
                })
                .expect("full chunk locator should be executable");
            assert!(
                full_locator_output.contains(&locator),
                "human chunk output should compact full locators:\n{full_locator_output}"
            );
            assert!(
                !full_locator_output.contains(&document.hash),
                "human chunk output should not expose the full document hash:\n{full_locator_output}"
            );

            let multi_get_output = adapter
                .multi_get(
                    Some("work"),
                    std::slice::from_ref(&full_locator),
                    10,
                    51_200,
                )
                .expect("multi-get should accept full chunk locators");
            assert!(
                multi_get_output.contains(&locator),
                "multi-get chunk output should use the same compact handle:\n{multi_get_output}"
            );
            assert!(
                !multi_get_output.contains(&document.hash),
                "multi-get chunk output should not expose the full document hash:\n{multi_get_output}"
            );

            let omitted_locators = vec![full_locator.clone(), full_locator.clone()];
            let omitted_output = adapter
                .multi_get(Some("work"), &omitted_locators, 1, 51_200)
                .expect("multi-get should compact omitted chunk locators");
            assert!(
                omitted_output.contains(&locator),
                "omitted chunk output should use the same compact handle:\n{omitted_output}"
            );
            assert!(
                !omitted_output.contains(&document.hash),
                "omitted chunk output should not expose the full document hash:\n{omitted_output}"
            );
        });
    }

    #[test]
    fn group_search_results_uses_first_chunk_per_document_and_counts_duplicates() {
        let results = vec![
            make_search_result("doc-a", "docs/a.md", 0.95, "alpha first"),
            make_search_result("doc-a", "docs/a.md", 0.91, "alpha second"),
            make_search_result("doc-b", "docs/b.md", 0.88, "beta first"),
            make_search_result("doc-c", "docs/c.md", 0.83, "gamma first"),
            make_search_result("doc-b", "docs/b.md", 0.81, "beta second"),
        ];

        let grouped = group_search_results(&results, 10);

        assert_eq!(grouped.len(), 3);
        assert_eq!(grouped[0].primary.docid, "doc-a");
        assert_eq!(grouped[0].primary.text, "alpha first");
        assert_eq!(grouped[0].additional_matches.len(), 1);
        assert_eq!(grouped[1].primary.docid, "doc-b");
        assert_eq!(grouped[1].primary.text, "beta first");
        assert_eq!(grouped[1].additional_matches.len(), 1);
        assert_eq!(grouped[2].primary.docid, "doc-c");
        assert_eq!(grouped[2].additional_matches.len(), 0);
    }

    #[test]
    fn group_search_results_respects_group_limit_but_counts_visible_duplicates() {
        let results = vec![
            make_search_result("doc-a", "docs/a.md", 0.95, "alpha first"),
            make_search_result("doc-b", "docs/b.md", 0.90, "beta first"),
            make_search_result("doc-c", "docs/c.md", 0.85, "gamma first"),
            make_search_result("doc-b", "docs/b.md", 0.82, "beta second"),
            make_search_result("doc-a", "docs/a.md", 0.80, "alpha second"),
        ];

        let grouped = group_search_results(&results, 2);

        assert_eq!(grouped.len(), 2);
        assert_eq!(grouped[0].primary.docid, "doc-a");
        assert_eq!(grouped[0].additional_matches.len(), 1);
        assert_eq!(grouped[1].primary.docid, "doc-b");
        assert_eq!(grouped[1].additional_matches.len(), 1);
        assert!(
            grouped.iter().all(|item| item.primary.docid != "doc-c"),
            "unexpected grouped results: {:?}",
            grouped
                .iter()
                .map(|item| item.primary.docid.as_str())
                .collect::<Vec<_>>()
        );
    }

    #[test]
    fn group_search_results_does_not_merge_short_docid_collisions_across_spaces() {
        let results = vec![
            make_search_result_in_space(
                "#abc123",
                "default",
                "docs/guide.md",
                0.95,
                "default guide",
            ),
            make_search_result_in_space("#abc123", "work", "docs/guide.md", 0.90, "work guide"),
        ];

        let grouped = group_search_results(&results, 10);

        assert_eq!(grouped.len(), 2);
        assert_eq!(grouped[0].primary.space, "default");
        assert_eq!(grouped[0].primary.path, "docs/guide.md");
        assert_eq!(grouped[0].additional_matches.len(), 0);
        assert_eq!(grouped[1].primary.space, "work");
        assert_eq!(grouped[1].primary.path, "docs/guide.md");
        assert_eq!(grouped[1].additional_matches.len(), 0);
    }

    #[test]
    fn search_groups_chunk_results_in_default_output() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create collection root");
            let engine = Engine::new(None).expect("create engine");
            engine.add_space("work", None).expect("add work");

            let docs_path = new_collection_dir(root.path(), "work-docs");
            engine
                .add_collection(AddCollectionRequest {
                    path: docs_path.clone(),
                    space: Some("work".to_string()),
                    name: Some("docs".to_string()),
                    description: None,
                    extensions: None,
                    no_index: true,
                })
                .expect("add collection");

            fs::write(
                docs_path.join("big.md"),
                "# Big Guide\n\n## Part 1\nGuide systems depend on guide ranking.\n\
\n## Part 2\nGuide tuning changes guide retrieval quality.\n\
\n## Part 3\nGuide evaluation catches guide regressions.\n",
            )
            .expect("write big doc");
            fs::write(
                docs_path.join("small.md"),
                "# Small Guide\n\nguide guide guide guide\n",
            )
            .expect("write small doc");

            let adapter = CliAdapter::new(engine);
            adapter
                .update(Some("work"), &["docs".to_string()], true, false, false)
                .expect("run update");
            let space_row = adapter
                .engine
                .storage()
                .get_space("work")
                .expect("get space");
            let collection_row = adapter
                .engine
                .storage()
                .get_collection(space_row.id, "docs")
                .expect("get collection");
            let big_document = adapter
                .engine
                .storage()
                .get_document_by_path(collection_row.id, "big.md")
                .expect("get document")
                .expect("document exists");
            let short_locator_prefix = format!("#{}@", &big_document.hash[..6]);

            let output = adapter
                .search(CliSearchOptions {
                    space: Some("work"),
                    query: "guide",
                    collections: &["docs".to_string()],
                    limit: 2,
                    min_score: 0.0,
                    deep: false,
                    keyword: true,
                    semantic: false,
                    rerank: false,
                    no_rerank: false,
                    debug: false,
                })
                .expect("run grouped search");

            assert!(
                output.contains("2 documents"),
                "unexpected output:\n{output}"
            );
            assert!(
                output.contains("query: guide"),
                "unexpected output:\n{output}"
            );
            assert!(
                output.contains("mode: keyword"),
                "unexpected output:\n{output}"
            );
            assert!(
                output.matches("work/docs/big.md").count() == 1,
                "unexpected output:\n{output}"
            );
            assert!(
                output.contains("also found: 2 more chunks"),
                "unexpected output:\n{output}"
            );
            assert!(
                output.contains("section: Big Guide"),
                "primary result should label heading metadata as a section, not a literal match:\n{output}"
            );
            assert!(
                !output.contains("match:"),
                "normal search output should not imply exact match metadata:\n{output}"
            );
            assert!(
                output.contains("Big Guide > Part 2"),
                "unexpected output:\n{output}"
            );
            assert!(
                output.contains(&short_locator_prefix),
                "unexpected output:\n{output}"
            );
            assert!(
                !output.contains(&big_document.hash),
                "normal output should not expose full hash:\n{output}"
            );

            let adapter = adapter.with_color(true);
            let colored_output = adapter
                .search(CliSearchOptions {
                    space: Some("work"),
                    query: "guide",
                    collections: &["docs".to_string()],
                    limit: 2,
                    min_score: 0.0,
                    deep: false,
                    keyword: true,
                    semantic: false,
                    rerank: false,
                    no_rerank: false,
                    debug: false,
                })
                .expect("run colored grouped search");
            assert!(
                colored_output.contains("\x1b["),
                "colored search output should include ANSI emphasis:\n{colored_output}"
            );
            assert!(
                colored_output.contains(&short_locator_prefix),
                "colored output should keep compact locator:\n{colored_output}"
            );
        });
    }

    #[test]
    fn search_debug_keeps_chunk_level_results() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create collection root");
            let engine = Engine::new(None).expect("create engine");
            engine.add_space("work", None).expect("add work");

            let docs_path = new_collection_dir(root.path(), "work-docs");
            engine
                .add_collection(AddCollectionRequest {
                    path: docs_path.clone(),
                    space: Some("work".to_string()),
                    name: Some("docs".to_string()),
                    description: None,
                    extensions: None,
                    no_index: true,
                })
                .expect("add collection");

            fs::write(
                docs_path.join("big.md"),
                "# Big Guide\n\n## Part 1\nGuide systems depend on guide ranking.\n\
\n## Part 2\nGuide tuning changes guide retrieval quality.\n\
\n## Part 3\nGuide evaluation catches guide regressions.\n",
            )
            .expect("write big doc");

            let adapter = CliAdapter::new(engine);
            adapter
                .update(Some("work"), &["docs".to_string()], true, false, false)
                .expect("run update");
            let space_row = adapter
                .engine
                .storage()
                .get_space("work")
                .expect("get space");
            let collection_row = adapter
                .engine
                .storage()
                .get_collection(space_row.id, "docs")
                .expect("get collection");
            let document = adapter
                .engine
                .storage()
                .get_document_by_path(collection_row.id, "big.md")
                .expect("get document")
                .expect("document exists");

            let adapter = adapter.with_color(true);
            let output = adapter
                .search(CliSearchOptions {
                    space: Some("work"),
                    query: "guide",
                    collections: &["docs".to_string()],
                    limit: 3,
                    min_score: 0.0,
                    deep: false,
                    keyword: true,
                    semantic: false,
                    rerank: false,
                    no_rerank: false,
                    debug: true,
                })
                .expect("run debug search");

            assert!(
                output.matches("work/docs/big.md").count() > 1,
                "unexpected output:\n{output}"
            );
            assert!(
                !output.contains("more matching section"),
                "unexpected output:\n{output}"
            );
            assert!(
                output.contains("results:\n- #"),
                "debug output should use sectioned result rows:\n{output}"
            );
            assert!(output.contains("chunk: '#"), "unexpected output:\n{output}");
            assert!(output.contains("snippet:"), "unexpected output:\n{output}");
            assert!(
                output.contains("elapsed:\n- "),
                "unexpected output:\n{output}"
            );
            assert!(
                output.contains(&document.hash),
                "debug output should preserve full chunk locator:\n{output}"
            );
            assert!(
                !output.contains("\x1b["),
                "debug output should stay plain even if color is enabled:\n{output}"
            );
        });
    }

    #[test]
    fn status_response_formats_human_storage_and_model_summary() {
        let output = format_status_response(
            &StatusResponse {
                spaces: vec![SpaceStatus {
                    name: "default".to_string(),
                    description: Some("main workspace".to_string()),
                    last_updated: Some("2026-04-11T16:49:07Z".to_string()),
                    collections: vec![CollectionStatus {
                        name: "kbolt".to_string(),
                        path: PathBuf::from("/Users/macbook/kbolt"),
                        documents: 98,
                        active_documents: 98,
                        chunks: 1218,
                        embedded_chunks: 1218,
                        last_updated: "2026-04-11T16:49:07Z".to_string(),
                    }],
                }],
                models: kbolt_types::ModelStatus {
                    embedder: ModelInfo {
                        configured: true,
                        ready: false,
                        profile: Some("kbolt_local_embed".to_string()),
                        kind: Some("llama_cpp_server".to_string()),
                        operation: Some("embedding".to_string()),
                        model: Some("embeddinggemma".to_string()),
                        endpoint: Some("http://127.0.0.1:8103".to_string()),
                        issue: Some("endpoint is unreachable".to_string()),
                    },
                    reranker: ModelInfo {
                        configured: true,
                        ready: true,
                        profile: Some("kbolt_local_rerank".to_string()),
                        kind: Some("llama_cpp_server".to_string()),
                        operation: Some("reranking".to_string()),
                        model: Some("qwen3-reranker".to_string()),
                        endpoint: Some("http://127.0.0.1:8104".to_string()),
                        issue: None,
                    },
                    expander: ModelInfo {
                        configured: false,
                        ready: false,
                        profile: None,
                        kind: None,
                        operation: None,
                        model: None,
                        endpoint: None,
                        issue: None,
                    },
                },
                cache_dir: PathBuf::from("/Users/macbook/Library/Caches/kbolt"),
                config_dir: PathBuf::from("/Users/macbook/Library/Application Support/kbolt"),
                total_documents: 98,
                total_chunks: 1218,
                total_embedded: 1218,
                disk_usage: DiskUsage {
                    sqlite_bytes: 348_160,
                    tantivy_bytes: 520_111,
                    usearch_bytes: 4_581_056,
                    models_bytes: 1_935_460_432,
                    total_bytes: 1_940_909_759,
                },
            },
            Some("default"),
        );

        assert!(output.contains("spaces:"));
        assert!(output.contains("- default (active)"));
        assert!(output.contains("  description: main workspace"));
        assert!(output.contains("  collections:"));
        assert!(output.contains("    - kbolt"));
        assert!(output.contains("storage:"));
        assert!(
            output.contains("- sqlite: 340 KB"),
            "unexpected output:\n{output}"
        );
        assert!(
            output.contains("- tantivy: 508 KB"),
            "unexpected output:\n{output}"
        );
        assert!(
            output.contains("- vectors: 4.4 MB"),
            "unexpected output:\n{output}"
        );
        assert!(
            output.contains("- models: 1.8 GB"),
            "unexpected output:\n{output}"
        );
        assert!(
            output.contains("- total: 1.8 GB"),
            "unexpected output:\n{output}"
        );
        assert!(output.contains("- embedder: not ready (embeddinggemma)"));
        assert!(output.contains("  issue: endpoint is unreachable"));
        assert!(!output.contains("profile="), "unexpected output:\n{output}");
    }

    #[test]
    fn active_space_name_for_status_follows_cli_precedence_without_validation() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create config root");
            std::fs::write(
                root.path().join("index.toml"),
                "default_space = \"default\"\n",
            )
            .expect("write config");
            let engine = Engine::new(Some(root.path())).expect("create engine");

            std::env::remove_var("KBOLT_SPACE");
            assert_eq!(
                active_space_name_for_status(&engine, Some("work")).as_deref(),
                Some("work")
            );

            std::env::set_var("KBOLT_SPACE", "ops");
            assert_eq!(
                active_space_name_for_status(&engine, None).as_deref(),
                Some("ops")
            );
            std::env::remove_var("KBOLT_SPACE");

            assert_eq!(
                active_space_name_for_status(&engine, None).as_deref(),
                Some("default")
            );
        });
    }

    #[test]
    fn optional_search_signal_uses_human_values() {
        assert_eq!(format_optional_search_signal(None), "-");
        assert_eq!(format_optional_search_signal(Some(0.824)), "0.82");
    }

    #[test]
    fn file_list_hides_docids_by_default() {
        let output = format_file_list(
            &[
                FileEntry {
                    path: "docs/keep.md".to_string(),
                    title: "keep.md".to_string(),
                    docid: "#3c96dd".to_string(),
                    active: true,
                    chunk_count: 1,
                    embedded: false,
                },
                FileEntry {
                    path: "docs/old.md".to_string(),
                    title: "old.md".to_string(),
                    docid: "#deadbe".to_string(),
                    active: false,
                    chunk_count: 1,
                    embedded: false,
                },
            ],
            false,
        );

        assert!(
            output.contains("- docs/keep.md (1 chunk(s), not embedded)"),
            "unexpected output:\n{output}"
        );
        assert!(!output.contains("#3c96dd"), "unexpected output:\n{output}");
        assert!(
            !output.contains("keep.md |"),
            "unexpected output:\n{output}"
        );
    }

    #[test]
    fn file_list_marks_inactive_files_with_all() {
        let output = format_file_list(
            &[FileEntry {
                path: "docs/old.md".to_string(),
                title: "old.md".to_string(),
                docid: "#deadbe".to_string(),
                active: false,
                chunk_count: 1,
                embedded: false,
            }],
            true,
        );

        assert!(output.contains("- docs/old.md (inactive, 1 chunk(s), not embedded)"));
        assert!(!output.contains("#deadbe"));
    }

    #[test]
    fn color_file_list_marks_paths_and_problem_states() {
        let output = format_file_list_color(
            &[
                FileEntry {
                    path: "docs/keep.md".to_string(),
                    title: "keep.md".to_string(),
                    docid: "#3c96dd".to_string(),
                    active: true,
                    chunk_count: 1,
                    embedded: true,
                },
                FileEntry {
                    path: "docs/old.md".to_string(),
                    title: "old.md".to_string(),
                    docid: "#deadbe".to_string(),
                    active: false,
                    chunk_count: 1,
                    embedded: false,
                },
            ],
            true,
            true,
        );

        assert!(output.contains("\x1b[34mdocs/keep.md\x1b[0m"));
        assert!(output.contains("\x1b[90membedded\x1b[0m"));
        assert!(output.contains("\x1b[33minactive\x1b[0m"));
        assert!(output.contains("\x1b[33mnot embedded\x1b[0m"));
        assert!(!output.contains("#deadbe"));
    }

    #[test]
    fn ignore_commands_use_sectioned_output() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create collection root");
            let engine = Engine::new(None).expect("create engine");
            engine.add_space("work", None).expect("add work");
            engine
                .add_collection(AddCollectionRequest {
                    path: new_collection_dir(root.path(), "work-api"),
                    space: Some("work".to_string()),
                    name: Some("api".to_string()),
                    description: None,
                    extensions: Some(vec!["md".to_string()]),
                    no_index: true,
                })
                .expect("add collection");
            let adapter = CliAdapter::new(engine);

            let empty = adapter
                .ignore_show(Some("work"), "api")
                .expect("show empty ignore");
            assert!(empty.contains("ignore: work/api"));
            assert!(empty.contains("contents:"));
            assert!(empty.contains("- none"));

            let added = adapter
                .ignore_add(Some("work"), "api", "dist/")
                .expect("add ignore pattern");
            assert!(added.contains("ignore updated: work/api"));
            assert!(added.contains("added:"));
            assert!(added.contains("- dist/"));

            let shown = adapter
                .ignore_show(Some("work"), "api")
                .expect("show ignore pattern");
            assert!(shown.contains("contents:"));
            assert!(shown.contains("- dist/"));

            let listed = adapter
                .ignore_list(Some("work"))
                .expect("list ignore files");
            assert!(listed.contains("ignore files:"));
            assert!(listed.contains("- work/api: 1 pattern(s)"));

            let missing = adapter
                .ignore_remove(Some("work"), "api", "target/")
                .expect("remove missing ignore pattern");
            assert!(missing.contains("ignore unchanged: work/api"));
            assert!(missing.contains("missing:"));
            assert!(missing.contains("- target/"));

            let removed = adapter
                .ignore_remove(Some("work"), "api", "dist/")
                .expect("remove ignore pattern");
            assert!(removed.contains("ignore updated: work/api"));
            assert!(removed.contains("removed:"));
            assert!(removed.contains("- dist/"));
            assert!(removed.contains("matches:"));
            assert!(removed.contains("- 1"));
        });
    }

    #[test]
    fn ignore_show_labels_comments_as_contents_not_patterns() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create collection root");
            let engine = Engine::new(None).expect("create engine");
            engine.add_space("work", None).expect("add work");
            engine
                .add_collection(AddCollectionRequest {
                    path: new_collection_dir(root.path(), "work-api"),
                    space: Some("work".to_string()),
                    name: Some("api".to_string()),
                    description: None,
                    extensions: Some(vec!["md".to_string()]),
                    no_index: true,
                })
                .expect("add collection");
            let adapter = CliAdapter::new(engine);

            adapter
                .ignore_add(Some("work"), "api", "# generated files")
                .expect("add comment line");

            let shown = adapter
                .ignore_show(Some("work"), "api")
                .expect("show ignore contents");
            assert!(shown.contains("contents:"));
            assert!(!shown.contains("patterns:"), "unexpected output:\n{shown}");
            assert!(shown.contains("- # generated files"));

            let listed = adapter
                .ignore_list(Some("work"))
                .expect("list ignore files");
            assert!(listed.contains("- work/api: 0 pattern(s)"));
        });
    }

    #[test]
    fn ignore_show_preserves_pattern_spacing_for_copy_paste() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create collection root");
            let engine = Engine::new(None).expect("create engine");
            engine.add_space("work", None).expect("add work");
            engine
                .add_collection(AddCollectionRequest {
                    path: new_collection_dir(root.path(), "work-api"),
                    space: Some("work".to_string()),
                    name: Some("api".to_string()),
                    description: None,
                    extensions: Some(vec!["md".to_string()]),
                    no_index: true,
                })
                .expect("add collection");
            let adapter = CliAdapter::new(engine);

            adapter
                .ignore_add(Some("work"), "api", "  build/  ")
                .expect("add spaced pattern");

            let shown = adapter
                .ignore_show(Some("work"), "api")
                .expect("show ignore contents");
            assert!(
                shown.lines().any(|line| line == "-   build/  "),
                "expected exact spacing in output:\n{shown}"
            );
        });
    }

    #[test]
    fn colored_ignore_show_preserves_pattern_spacing_for_copy_paste() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create collection root");
            let engine = Engine::new(None).expect("create engine");
            engine.add_space("work", None).expect("add work");
            engine
                .add_collection(AddCollectionRequest {
                    path: new_collection_dir(root.path(), "work-api"),
                    space: Some("work".to_string()),
                    name: Some("api".to_string()),
                    description: None,
                    extensions: Some(vec!["md".to_string()]),
                    no_index: true,
                })
                .expect("add collection");
            let adapter = CliAdapter::new(engine).with_color(true);

            adapter
                .ignore_add(Some("work"), "api", "  build/  ")
                .expect("add spaced pattern");

            let shown = adapter
                .ignore_show(Some("work"), "api")
                .expect("show ignore contents");
            assert!(shown.contains("\x1b[1;36mcontents:\x1b[0m"));
            assert!(
                shown.lines().any(|line| line == "-   build/  "),
                "expected exact spacing in output:\n{shown}"
            );
        });
    }

    #[test]
    fn ignore_edit_reports_collection_and_path() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create collection root");
            let engine = Engine::new(None).expect("create engine");
            engine.add_space("work", None).expect("add work");
            engine
                .add_collection(AddCollectionRequest {
                    path: new_collection_dir(root.path(), "work-api"),
                    space: Some("work".to_string()),
                    name: Some("api".to_string()),
                    description: None,
                    extensions: Some(vec!["md".to_string()]),
                    no_index: true,
                })
                .expect("add collection");
            let adapter = CliAdapter::new(engine);

            std::env::set_var("VISUAL", "/usr/bin/true");
            std::env::remove_var("EDITOR");
            let output = adapter
                .ignore_edit(Some("work"), "api")
                .expect("edit ignore file");

            assert!(output.contains("ignore updated: work/api"));
            assert!(output.contains("  path:"));
        });
    }

    #[test]
    fn collection_info_is_human_readable() {
        let output = format_collection_info(&CollectionInfo {
            name: "api".to_string(),
            space: "work".to_string(),
            path: PathBuf::from("/tmp/work-api"),
            description: Some("API reference".to_string()),
            extensions: Some(vec!["md".to_string(), "txt".to_string()]),
            document_count: 97,
            active_document_count: 96,
            chunk_count: 1183,
            embedded_chunk_count: 1180,
            created: "2026-04-13T12:00:00Z".to_string(),
            updated: "2026-04-14T09:30:00Z".to_string(),
        });

        assert!(output.contains("collection: work/api"));
        assert!(output.contains("path: /tmp/work-api"));
        assert!(output.contains("description: API reference"));
        assert!(output.contains("extensions: md, txt"));
        assert!(output.contains("documents:"));
        assert!(output.contains("- 96 active / 97 total"));
        assert!(output.contains("- 1183 chunks"));
        assert!(output.contains("- 1180 embedded"));
        assert!(output.contains("timestamps:"));
        assert!(output.contains("- created 2026-04-13T12:00:00Z"));
        assert!(output.contains("- updated 2026-04-14T09:30:00Z"));
        assert!(
            !output.contains("active_documents:"),
            "unexpected output:\n{output}"
        );
    }

    #[test]
    fn document_response_is_human_readable() {
        let output = format_document_response(
            &DocumentResponse {
                docid: "#409380".to_string(),
                path: "kbolt/README.md".to_string(),
                title: "README".to_string(),
                space: "default".to_string(),
                collection: "kbolt".to_string(),
                content: "line one\nline two".to_string(),
                stale: false,
                total_lines: 68,
                returned_lines: 5,
            },
            false,
        );

        assert!(output.contains("document: default/kbolt/README.md"));
        assert!(output.contains("title: README"));
        assert!(output.contains("docid: #409380"));
        assert!(
            !output.contains("shown:"),
            "human get output should not expose logical line counts:\n{output}"
        );
        assert!(output.contains("\n\nline one\nline two"));
        assert!(
            !output.contains("stale: false"),
            "unexpected output:\n{output}"
        );
        assert!(!output.contains("content:"), "unexpected output:\n{output}");
        assert!(
            !output.contains("collection: kbolt"),
            "unexpected output:\n{output}"
        );
    }

    #[test]
    fn colored_document_response_keeps_body_plain() {
        let output = format_document_response(
            &DocumentResponse {
                docid: "#409380".to_string(),
                path: "kbolt/README.md".to_string(),
                title: "README".to_string(),
                space: "default".to_string(),
                collection: "kbolt".to_string(),
                content: "plain body line\n- copyable bullet".to_string(),
                stale: false,
                total_lines: 2,
                returned_lines: 2,
            },
            true,
        );

        assert!(output.contains("document: \x1b[34mdefault/kbolt/README.md\x1b[0m"));
        assert!(output.lines().any(|line| line == "plain body line"));
        assert!(output.lines().any(|line| line == "- copyable bullet"));
    }

    #[test]
    fn chunk_response_is_human_readable() {
        let output = format_chunk_response(
            &ChunkResponse {
                locator: "#409380badc0ffee@3".to_string(),
                docid: "#409380".to_string(),
                chunk_ordinal: 3,
                path: "kbolt/README.md".to_string(),
                title: "README".to_string(),
                space: "default".to_string(),
                collection: "kbolt".to_string(),
                heading: Some("Install".to_string()),
                content: "line one\nline two".to_string(),
                stale: false,
                total_lines: 12,
                returned_lines: 2,
            },
            "#409380@3",
            false,
        );

        assert!(output.contains("README   #409380@3"));
        assert!(output.contains("path: default/kbolt/README.md"));
        assert!(
            !output.contains("#409380badc0ffee@3"),
            "human chunk output should not expand compact handles:\n{output}"
        );
        assert!(output.contains("section: Install"));
        assert!(
            !output.contains("shown:"),
            "human chunk output should not expose logical line counts:\n{output}"
        );
        assert!(output.contains("\n\nline one\nline two"));
        assert!(
            !output.contains("stale: false"),
            "unexpected output:\n{output}"
        );
        assert!(!output.contains("content:"), "unexpected output:\n{output}");
        assert!(
            !output.contains("collection: kbolt"),
            "unexpected output:\n{output}"
        );
    }

    #[test]
    fn colored_chunk_response_keeps_body_plain() {
        let output = format_chunk_response(
            &ChunkResponse {
                locator: "#409380badc0ffee@3".to_string(),
                docid: "#409380".to_string(),
                chunk_ordinal: 3,
                path: "kbolt/README.md".to_string(),
                title: "README".to_string(),
                space: "default".to_string(),
                collection: "kbolt".to_string(),
                heading: Some("Install".to_string()),
                content: "plain chunk line\n- copyable bullet".to_string(),
                stale: false,
                total_lines: 2,
                returned_lines: 2,
            },
            "#409380@3",
            true,
        );

        assert!(output.contains("\x1b[34m#409380@3\x1b[0m"));
        assert!(output.lines().any(|line| line == "plain chunk line"));
        assert!(output.lines().any(|line| line == "- copyable bullet"));
    }

    #[test]
    fn multi_get_response_is_human_readable() {
        let mut chunk_display_locators = std::collections::HashMap::new();
        chunk_display_locators.insert("#409380badc0ffee@3".to_string(), "#409380@3".to_string());
        chunk_display_locators.insert("#409380badc0ffee@4".to_string(), "#409380@4".to_string());
        let response = MultiGetResponse {
            items: vec![
                MultiGetItem::Document(DocumentResponse {
                    docid: "#409380".to_string(),
                    path: "kbolt/README.md".to_string(),
                    title: "README".to_string(),
                    space: "default".to_string(),
                    collection: "kbolt".to_string(),
                    content: "line one\nline two".to_string(),
                    stale: false,
                    total_lines: 68,
                    returned_lines: 68,
                }),
                MultiGetItem::Document(DocumentResponse {
                    docid: "#abcd12".to_string(),
                    path: "api/guide.md".to_string(),
                    title: "Guide".to_string(),
                    space: "work".to_string(),
                    collection: "api".to_string(),
                    content: "guide body".to_string(),
                    stale: true,
                    total_lines: 12,
                    returned_lines: 4,
                }),
                MultiGetItem::Chunk(ChunkResponse {
                    locator: "#409380badc0ffee@3".to_string(),
                    docid: "#409380".to_string(),
                    chunk_ordinal: 3,
                    path: "kbolt/README.md".to_string(),
                    title: "README".to_string(),
                    space: "default".to_string(),
                    collection: "kbolt".to_string(),
                    heading: Some("Install".to_string()),
                    content: "chunk body".to_string(),
                    stale: false,
                    total_lines: 1,
                    returned_lines: 1,
                }),
            ],
            omitted: vec![
                OmittedItem {
                    kind: MultiGetItemKind::Document,
                    locator: "#large1".to_string(),
                    path: "api/large.md".to_string(),
                    docid: "#large1".to_string(),
                    space: "work".to_string(),
                    size_bytes: 8192,
                    reason: OmitReason::MaxBytes,
                },
                OmittedItem {
                    kind: MultiGetItemKind::Chunk,
                    locator: "#409380badc0ffee@4".to_string(),
                    path: "kbolt/README.md".to_string(),
                    docid: "#409380".to_string(),
                    space: "default".to_string(),
                    size_bytes: 4096,
                    reason: OmitReason::MaxFiles,
                },
            ],
            resolved_count: 4,
            warnings: vec!["item not found: api/missing.md".to_string()],
        };
        let output = format_multi_get_response_color_with_chunk_locators(
            &response,
            false,
            &chunk_display_locators,
        );

        assert!(output.contains("items:\n- 3 returned"));
        assert!(output.contains("- 4 resolved"));
        assert!(output.contains("1. default/kbolt/README.md"));
        assert!(output.contains("   title: README"));
        assert!(output.contains("   docid: #409380"));
        assert!(
            !output.contains("   shown:"),
            "multi-get output should not expose logical line counts:\n{output}"
        );
        assert!(output.contains("2. work/api/guide.md"));
        assert!(output.contains("   status: stale"));
        assert!(output.contains("3. default/kbolt/README.md"));
        assert!(output.contains("   locator: #409380@3"));
        assert!(output.contains("   section: Install"));
        assert!(output.contains("chunk body"));
        assert!(
            !output.contains("shown: 4 of 12 lines"),
            "multi-get output should not expose logical line counts:\n{output}"
        );
        assert!(output.contains("omitted:"));
        assert!(output.contains("- api/large.md (8.0 KB, size limit)"));
        assert!(output.contains("- #409380@4 in kbolt/README.md (4.0 KB, max files)"));
        assert!(
            !output.contains("#409380badc0ffee"),
            "multi-get human output should use compact chunk locators:\n{output}"
        );
        assert!(output.contains("warnings:"));
        assert!(output.contains("- item not found: api/missing.md"));
        assert!(
            !output.contains("resolved_count:"),
            "unexpected output:\n{output}"
        );
        assert!(
            !output.contains("--- #409380"),
            "unexpected output:\n{output}"
        );
    }

    #[test]
    fn multi_get_response_formats_empty_state() {
        let output = format_multi_get_response(&MultiGetResponse {
            items: Vec::new(),
            omitted: Vec::new(),
            resolved_count: 0,
            warnings: Vec::new(),
        });

        assert_eq!(output, "items:\n- none returned");
    }

    #[test]
    fn multi_get_response_reports_resolved_count_when_all_omitted() {
        let output = format_multi_get_response(&MultiGetResponse {
            items: Vec::new(),
            omitted: vec![OmittedItem {
                kind: MultiGetItemKind::Document,
                locator: "#large1".to_string(),
                path: "api/large.md".to_string(),
                docid: "#large1".to_string(),
                space: "work".to_string(),
                size_bytes: 8192,
                reason: OmitReason::MaxBytes,
            }],
            resolved_count: 1,
            warnings: Vec::new(),
        });

        assert!(output.contains("items:\n- none returned\n- 1 resolved"));
        assert!(output.contains("omitted:\n- api/large.md (8.0 KB, size limit)"));
    }

    #[test]
    fn update_verbose_reports_buffered_decisions_before_summary() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create collection root");
            let engine = Engine::new(None).expect("create engine");
            engine.add_space("work", None).expect("add work");

            let collection_path = new_collection_dir(root.path(), "work-api");
            engine
                .add_collection(AddCollectionRequest {
                    path: collection_path.clone(),
                    space: Some("work".to_string()),
                    name: Some("api".to_string()),
                    description: None,
                    extensions: Some(vec!["rs".to_string()]),
                    no_index: true,
                })
                .expect("add collection");
            let adapter = CliAdapter::new(engine);

            fs::create_dir_all(collection_path.join("src")).expect("create src dir");
            fs::write(collection_path.join("src/lib.rs"), "fn alpha() {}\n")
                .expect("write valid file");
            fs::write(collection_path.join("src/bad.rs"), [0xff, 0xfe, 0xfd])
                .expect("write invalid file");

            let output = adapter
                .update(Some("work"), &["api".to_string()], true, false, true)
                .expect("run verbose update");

            let summary_index = output
                .lines()
                .position(|line| line == "update complete")
                .expect("expected summary output");
            assert!(summary_index > 0, "unexpected output: {output}");
            assert!(
                output.lines().next().unwrap_or_default() == "decisions:",
                "unexpected output: {output}"
            );
            assert!(
                output.contains("- work/api/src/lib.rs: new"),
                "unexpected output: {output}"
            );
            assert!(
                output.contains("- work/api/src/bad.rs: extract_failed (extract failed:"),
                "unexpected output: {output}"
            );
            assert!(output.contains("summary:"), "unexpected output: {output}");
            assert!(
                output.contains("- 2 document(s) scanned"),
                "unexpected output: {output}"
            );
        });
    }

    #[test]
    fn collection_add_result_formats_no_index_message() {
        let output = format_collection_add_result(&AddCollectionResult {
            collection: CollectionInfo {
                name: "api".to_string(),
                space: "work".to_string(),
                path: PathBuf::from("/tmp/work-api"),
                description: None,
                extensions: None,
                document_count: 0,
                active_document_count: 0,
                chunk_count: 0,
                embedded_chunk_count: 0,
                created: "2026-03-31T00:00:00Z".to_string(),
                updated: "2026-03-31T00:00:00Z".to_string(),
            },
            initial_indexing: InitialIndexingOutcome::Skipped,
        });

        assert!(output.contains("collection added: work/api"));
        assert!(output.contains("indexing:"));
        assert!(output.contains("- skipped (--no-index)"));
        assert!(output.contains("next:"));
        assert!(output.contains("- kbolt --space work update --collection api"));
    }

    #[test]
    fn collection_add_result_formats_incomplete_initial_indexing() {
        let output = format_collection_add_result(&AddCollectionResult {
            collection: CollectionInfo {
                name: "api".to_string(),
                space: "work".to_string(),
                path: PathBuf::from("/tmp/work-api"),
                description: None,
                extensions: None,
                document_count: 3,
                active_document_count: 3,
                chunk_count: 3,
                embedded_chunk_count: 2,
                created: "2026-03-31T00:00:00Z".to_string(),
                updated: "2026-03-31T00:00:00Z".to_string(),
            },
            initial_indexing: InitialIndexingOutcome::Indexed(UpdateReport {
                scanned_docs: 3,
                skipped_mtime_docs: 0,
                skipped_hash_docs: 0,
                added_docs: 2,
                updated_docs: 0,
                failed_docs: 1,
                deactivated_docs: 0,
                reactivated_docs: 0,
                reaped_docs: 0,
                embedded_chunks: 2,
                decisions: Vec::new(),
                errors: vec![kbolt_types::FileError {
                    path: "work/api/bad.md".to_string(),
                    error: "extract failed".to_string(),
                }],
                elapsed_ms: 5,
            }),
        });

        assert!(output.contains("collection added: work/api"));
        assert!(output.contains("initial indexing incomplete"));
        assert!(output.contains("summary:"));
        assert!(output.contains("- 3 document(s) scanned"));
        assert!(output.contains("- 2 added"));
        assert!(output.contains("- 1 failed"));
        assert!(output.contains("- 2 chunk(s) embedded"));
        assert!(output.contains("- completed in 5ms"));
        assert!(output.contains("errors:"));
        assert!(output.contains("- work/api/bad.md: extract failed"));
        assert!(output.contains("next:"));
        assert!(output.contains("- kbolt --space work update --collection api"));
    }

    #[test]
    fn collection_add_result_formats_model_block_with_resume_steps() {
        let output = format_collection_add_result(&AddCollectionResult {
            collection: CollectionInfo {
                name: "api".to_string(),
                space: "work".to_string(),
                path: PathBuf::from("/tmp/work-api"),
                description: None,
                extensions: None,
                document_count: 0,
                active_document_count: 0,
                chunk_count: 0,
                embedded_chunk_count: 0,
                created: "2026-03-31T00:00:00Z".to_string(),
                updated: "2026-03-31T00:00:00Z".to_string(),
            },
            initial_indexing: InitialIndexingOutcome::Blocked(
                InitialIndexingBlock::ModelNotAvailable {
                    name: "embed-model".to_string(),
                },
            ),
        });

        assert!(output.contains("collection added: work/api"));
        assert!(output.contains("indexing blocked: model 'embed-model' is not available"));
        assert!(output.contains("next:"));
        assert!(output.contains("- kbolt setup local"));
        assert!(output.contains("- or configure [roles.embedder] in index.toml"));
        assert!(output.contains("- then run: kbolt --space work update --collection api"));
    }

    #[test]
    fn update_report_is_human_readable() {
        let output = format_update_report(
            &UpdateReport {
                scanned_docs: 12,
                skipped_mtime_docs: 5,
                skipped_hash_docs: 1,
                added_docs: 3,
                updated_docs: 2,
                failed_docs: 1,
                deactivated_docs: 0,
                reactivated_docs: 1,
                reaped_docs: 0,
                embedded_chunks: 8,
                decisions: Vec::new(),
                errors: vec![kbolt_types::FileError {
                    path: "work/api/src/bad.rs".to_string(),
                    error: "extract failed".to_string(),
                }],
                elapsed_ms: 1_250,
            },
            false,
            false,
        );

        assert!(output.starts_with("update complete"));
        assert!(output.contains("summary:"));
        assert!(output.contains("- 12 document(s) scanned"));
        assert!(output.contains("- 6 unchanged"));
        assert!(output.contains("- 3 added"));
        assert!(output.contains("- 2 updated"));
        assert!(output.contains("- 1 failed"));
        assert!(output.contains("- 1 reactivated"));
        assert!(output.contains("- 8 chunk(s) embedded"));
        assert!(output.contains("- completed in 1.2s"));
        assert!(output.contains("errors:"));
        assert!(output.contains("- work/api/src/bad.rs: extract failed"));
        assert!(
            !output.contains("scanned_docs:"),
            "unexpected output:\n{output}"
        );
    }

    #[test]
    fn update_report_mentions_no_embed_skip() {
        let report = make_update_report(Vec::new(), 0);
        let output = format_update_report(&report, false, true);

        assert!(
            output.contains("- embedding skipped (--no-embed)"),
            "expected no-embed summary line: {output}"
        );
        assert!(
            output.contains("- completed in 0ms"),
            "expected elapsed summary to remain present: {output}"
        );
    }

    #[test]
    fn colored_update_report_uses_warning_error_and_action_colors() {
        let report = make_update_report(
            vec![
                make_file_error("a.md"),
                make_file_error("b.md"),
                make_file_error("c.md"),
                make_file_error("d.md"),
            ],
            1,
        );
        let output = format_update_report_color(&report, false, true, true);

        assert!(output.contains("\x1b[31m1 failed\x1b[0m"));
        assert!(output.contains("\x1b[31ma.md: test failure\x1b[0m"));
        assert!(output.contains("\x1b[33membedding skipped (--no-embed)\x1b[0m"));
        assert!(output.contains("\x1b[32mrun with --verbose for the full error list\x1b[0m"));
    }

    #[test]
    fn colored_collection_add_skip_marks_status_and_next_action() {
        let result = AddCollectionResult {
            collection: make_collection_info("team notes", "cold docs"),
            initial_indexing: InitialIndexingOutcome::Skipped,
        };
        let output = format_collection_add_result_color(&result, true);

        assert!(output.contains("\x1b[33mskipped (--no-index)\x1b[0m"));
        assert!(
            output.contains(
                "\x1b[32mkbolt --space 'team notes' update --collection 'cold docs'\x1b[0m"
            ),
            "expected colored, quoted next command: {output}"
        );
        assert!(!output.contains("\x1b[32mcollection added"));

        let plain_output = format_collection_add_result_color(&result, false);
        assert!(!plain_output.contains("\x1b["));
        assert!(plain_output.contains("- skipped (--no-index)"));
        assert!(
            plain_output.contains("- kbolt --space 'team notes' update --collection 'cold docs'")
        );
    }

    #[test]
    fn update_verbose_reports_unmatched_errors_before_summary() {
        let report = UpdateReport {
            scanned_docs: 1,
            skipped_mtime_docs: 0,
            skipped_hash_docs: 0,
            added_docs: 0,
            updated_docs: 0,
            failed_docs: 1,
            deactivated_docs: 0,
            reactivated_docs: 0,
            reaped_docs: 0,
            embedded_chunks: 0,
            decisions: Vec::new(),
            errors: vec![kbolt_types::FileError {
                path: "work/api/missing.md".to_string(),
                error: "read failed".to_string(),
            }],
            elapsed_ms: 4,
        };
        let output = format_update_report(&report, true, false);

        assert!(
            output.starts_with("errors:\n- work/api/missing.md: read failed"),
            "unexpected output:\n{output}"
        );
        assert!(output.contains("\n\nupdate complete\n"));
        assert!(output.contains("summary:"));
        assert!(output.contains("- 1 failed"));
    }

    #[test]
    fn format_elapsed_ms_uses_human_units() {
        assert_eq!(format_elapsed_ms(8), "8ms");
        assert_eq!(format_elapsed_ms(1_250), "1.2s");
        assert_eq!(format_elapsed_ms(125_000), "2.1m");
    }

    #[test]
    fn space_acknowledgements_remain_plain_without_color() {
        assert_eq!(
            format_space_add_response("work", false),
            "space added: work"
        );
        assert_eq!(
            format_space_describe_response("work", false),
            "space description updated: work"
        );
        assert_eq!(
            format_space_rename_response("work", "team", false),
            "space renamed: work -> team"
        );
        assert_eq!(
            format_space_remove_response("team", false),
            "removed: space team"
        );
        assert_eq!(
            format_space_remove_default_response(false),
            "removed: space default\ndefault space: cleared"
        );
        assert_eq!(
            format_space_default_response(Some("team"), false),
            "default space: team"
        );
        assert_eq!(
            format_space_current_response(Some(("team", "default")), false),
            "active space: team (default)"
        );
    }

    #[test]
    fn colored_space_acknowledgements_mark_identities() {
        assert_eq!(
            format_space_add_response("work", true),
            "space added: \x1b[34mwork\x1b[0m"
        );
        assert_eq!(
            format_space_describe_response("work", true),
            "space description updated: \x1b[34mwork\x1b[0m"
        );
        assert_eq!(
            format_space_rename_response("work", "team", true),
            "space renamed: \x1b[34mwork\x1b[0m -> \x1b[34mteam\x1b[0m"
        );
        assert_eq!(
            format_space_remove_response("team", true),
            "removed: space \x1b[34mteam\x1b[0m"
        );
        assert_eq!(
            format_space_remove_default_response(true),
            "removed: space \x1b[34mdefault\x1b[0m\ndefault space: \x1b[33mcleared\x1b[0m"
        );
        assert_eq!(
            format_space_default_response(Some("team"), true),
            "default space: \x1b[34mteam\x1b[0m"
        );
        assert_eq!(
            format_space_current_response(Some(("team", "default")), true),
            "active space: \x1b[34mteam\x1b[0m (\x1b[90mdefault\x1b[0m)"
        );
    }

    #[test]
    fn collection_acknowledgements_remain_plain_without_color() {
        assert_eq!(
            format_collection_describe_response("docs", false),
            "collection description updated: docs"
        );
        assert_eq!(
            format_collection_rename_response("docs", "notes", false),
            "collection renamed: docs -> notes"
        );
        assert_eq!(
            format_collection_remove_response("work", "notes", false),
            "removed: collection notes\nspace: work"
        );
    }

    #[test]
    fn colored_collection_acknowledgements_mark_identities() {
        assert_eq!(
            format_collection_describe_response("docs", true),
            "collection description updated: \x1b[34mdocs\x1b[0m"
        );
        assert_eq!(
            format_collection_rename_response("docs", "notes", true),
            "collection renamed: \x1b[34mdocs\x1b[0m -> \x1b[34mnotes\x1b[0m"
        );
        assert_eq!(
            format_collection_remove_response("work", "notes", true),
            "removed: collection \x1b[34mnotes\x1b[0m\nspace: \x1b[34mwork\x1b[0m"
        );
    }

    #[test]
    fn space_add_with_directories_reports_registration_without_indexing() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create collection root");
            let engine = Engine::new(None).expect("create engine");
            let mut adapter = CliAdapter::new(engine);

            let work_path = new_collection_dir(root.path(), "work-api");
            let notes_path = new_collection_dir(root.path(), "work-notes");

            let output = adapter
                .space_add("work", Some("work docs"), false, &[work_path, notes_path])
                .expect("add space with directories");

            assert!(output.contains("space added: work"));
            assert!(output.contains("description: work docs"));
            assert!(output.contains("collections:"));
            assert!(output.contains("- 2 registered"));
            assert!(output.contains("indexing:"));
            assert!(output.contains("- skipped (collections registered only)"));
            assert!(output.contains("next:"));
            assert!(output.contains("- kbolt --space work update"));
        });
    }

    #[test]
    fn space_add_without_directories_reports_created_space() {
        with_isolated_xdg_dirs(|| {
            let engine = Engine::new(None).expect("create engine");
            let mut adapter = CliAdapter::new(engine);

            let output = adapter
                .space_add("work", Some("work docs"), false, &[])
                .expect("add space");

            assert!(
                output.starts_with("space added: work\n"),
                "unexpected output:\n{output}"
            );
            assert!(output.contains("description: work docs"));
            assert!(!output.contains("next:"), "unexpected output:\n{output}");
        });
    }

    #[test]
    fn space_add_with_partial_directory_failure_keeps_indexing_state_visible() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create collection root");
            let engine = Engine::new(None).expect("create engine");
            let mut adapter = CliAdapter::new(engine);

            let valid_path = new_collection_dir(root.path(), "work-api");
            let missing_path = root.path().join("missing-docs");

            let output = adapter
                .space_add("work", None, false, &[valid_path, missing_path.clone()])
                .expect("add space with partial failure");

            assert!(output.contains("space added: work"));
            assert!(output.contains("collections:"));
            assert!(output.contains("- 1 registered"));
            assert!(output.contains("failed:"));
            assert!(output.contains("- 1 collection(s)"));
            assert!(output.contains(&missing_path.display().to_string()));
            assert!(output.contains("indexing:"));
            assert!(output.contains("- skipped (collections registered only)"));
            assert!(output.contains("- kbolt --space work update"));
        });
    }

    #[test]
    fn space_list_and_info_use_sectioned_summaries() {
        with_isolated_xdg_dirs(|| {
            let engine = Engine::new(None).expect("create engine");
            engine
                .add_space("work", Some("work docs"))
                .expect("add work");
            let adapter = CliAdapter::new(engine);

            let list_output = adapter.space_list().expect("list spaces");
            assert!(list_output.contains("spaces:"));
            assert!(
                list_output.contains("- work: 0 collection(s), 0 document(s), 0 chunk(s)"),
                "unexpected output:\n{list_output}"
            );
            assert!(list_output.contains("description: work docs"));

            let info_output = adapter.space_info("work").expect("space info");
            assert!(
                info_output.starts_with("space: work\n"),
                "unexpected output:\n{info_output}"
            );
            assert!(info_output.contains("description: work docs"));
            assert!(info_output.contains("contents:"));
            assert!(info_output.contains("- 0 collection(s)"));
            assert!(info_output.contains("timestamps:"));
        });
    }

    #[test]
    fn format_schedule_add_response_renders_trigger_scope_and_backend() {
        let output = format_schedule_add_response(&ScheduleAddResponse {
            schedule: ScheduleDefinition {
                id: "s1".to_string(),
                trigger: ScheduleTrigger::Every {
                    interval: ScheduleInterval {
                        value: 30,
                        unit: ScheduleIntervalUnit::Minutes,
                    },
                },
                scope: ScheduleScope::All,
            },
            backend: ScheduleBackend::Launchd,
        });

        assert_eq!(
            output,
            "schedule added: s1\n\ndetails:\n- trigger: every 30m\n- scope: all spaces\n- backend: launchd"
        );
    }

    #[test]
    fn format_schedule_status_response_renders_entries_and_orphans() {
        let output = format_schedule_status_response(&ScheduleStatusResponse {
            schedules: vec![
                ScheduleStatusEntry {
                    schedule: ScheduleDefinition {
                        id: "s2".to_string(),
                        trigger: ScheduleTrigger::Weekly {
                            weekdays: vec![ScheduleWeekday::Mon, ScheduleWeekday::Fri],
                            time: "15:00".to_string(),
                        },
                        scope: ScheduleScope::Collections {
                            space: "work".to_string(),
                            collections: vec!["api".to_string(), "docs".to_string()],
                        },
                    },
                    backend: ScheduleBackend::Launchd,
                    state: ScheduleState::Drifted,
                    run_state: ScheduleRunState {
                        last_started: Some("2026-03-07T20:00:00Z".to_string()),
                        last_finished: Some("2026-03-07T20:00:05Z".to_string()),
                        last_result: Some(ScheduleRunResult::SkippedLock),
                        last_error: Some("lock was held".to_string()),
                    },
                },
                ScheduleStatusEntry {
                    schedule: ScheduleDefinition {
                        id: "s3".to_string(),
                        trigger: ScheduleTrigger::Daily {
                            time: "06:30".to_string(),
                        },
                        scope: ScheduleScope::Space {
                            space: "research".to_string(),
                        },
                    },
                    backend: ScheduleBackend::SystemdUser,
                    state: ScheduleState::TargetMissing,
                    run_state: ScheduleRunState {
                        last_started: None,
                        last_finished: None,
                        last_result: Some(ScheduleRunResult::Failed),
                        last_error: None,
                    },
                },
            ],
            orphans: vec![ScheduleOrphan {
                id: "s9".to_string(),
                backend: ScheduleBackend::Launchd,
            }],
        });

        assert!(output.contains("schedules:\n- s2"));
        assert!(output.contains("  trigger: mon, fri at 3:00 PM"));
        assert!(output.contains("  scope: work/api, work/docs"));
        assert!(output.contains("  backend: launchd"));
        assert!(output.contains("  state: drifted"));
        assert!(output.contains("  last started: 2026-03-07T20:00:00Z"));
        assert!(output.contains("  last finished: 2026-03-07T20:00:05Z"));
        assert!(output.contains("  last result: skipped lock"));
        assert!(output.contains("  last error: lock was held"));
        assert!(output.contains("- s3"));
        assert!(output.contains("  trigger: daily at 6:30 AM"));
        assert!(output.contains("  scope: space research"));
        assert!(output.contains("  backend: systemd-user"));
        assert!(output.contains("  state: target missing"));
        assert!(output.contains("  last started: never"));
        assert!(output.contains("  last finished: never"));
        assert!(output.contains("  last result: failed"));
        assert!(output.contains("orphans:\n- s9 (launchd)"));
    }

    #[test]
    fn colored_schedule_status_marks_problem_states_by_severity() {
        let output = format_schedule_status_response_color(
            &ScheduleStatusResponse {
                schedules: vec![
                    ScheduleStatusEntry {
                        schedule: ScheduleDefinition {
                            id: "s2".to_string(),
                            trigger: ScheduleTrigger::Weekly {
                                weekdays: vec![ScheduleWeekday::Mon],
                                time: "15:00".to_string(),
                            },
                            scope: ScheduleScope::Space {
                                space: "work".to_string(),
                            },
                        },
                        backend: ScheduleBackend::Launchd,
                        state: ScheduleState::Drifted,
                        run_state: ScheduleRunState {
                            last_started: Some("2026-03-07T20:00:00Z".to_string()),
                            last_finished: Some("2026-03-07T20:00:05Z".to_string()),
                            last_result: Some(ScheduleRunResult::SkippedLock),
                            last_error: Some("lock was held".to_string()),
                        },
                    },
                    ScheduleStatusEntry {
                        schedule: ScheduleDefinition {
                            id: "s3".to_string(),
                            trigger: ScheduleTrigger::Daily {
                                time: "06:30".to_string(),
                            },
                            scope: ScheduleScope::Space {
                                space: "research".to_string(),
                            },
                        },
                        backend: ScheduleBackend::SystemdUser,
                        state: ScheduleState::TargetMissing,
                        run_state: ScheduleRunState {
                            last_started: None,
                            last_finished: None,
                            last_result: Some(ScheduleRunResult::Failed),
                            last_error: None,
                        },
                    },
                ],
                orphans: vec![ScheduleOrphan {
                    id: "s9".to_string(),
                    backend: ScheduleBackend::Launchd,
                }],
            },
            true,
        );

        assert!(
            output.contains("state: \x1b[33mdrifted\x1b[0m"),
            "drifted schedules should be warning-colored:\n{output}"
        );
        assert!(
            output.contains("last result: \x1b[33mskipped lock\x1b[0m"),
            "skipped lock result should be warning-colored:\n{output}"
        );
        assert!(
            output.contains("last error: \x1b[31mlock was held\x1b[0m"),
            "last error should be error-colored:\n{output}"
        );
        assert!(
            output.contains("state: \x1b[33mtarget missing\x1b[0m"),
            "target missing schedules should be warning-colored:\n{output}"
        );
        assert!(
            output.contains("last result: \x1b[31mfailed\x1b[0m"),
            "failed result should be error-colored:\n{output}"
        );
        assert!(
            output.contains("\x1b[33ms9 (launchd)\x1b[0m"),
            "orphan backend artifact should be warning-colored:\n{output}"
        );
    }

    #[test]
    fn format_schedule_remove_response_renders_removed_id() {
        let output = format_schedule_remove_response(
            &RemoveScheduleSelector::Id {
                id: "s1".to_string(),
            },
            &ScheduleRemoveResponse {
                removed_ids: vec!["s1".to_string()],
            },
        );

        assert_eq!(output, "removed: schedule s1");
    }

    #[test]
    fn format_schedule_remove_response_renders_all_scope() {
        let output = format_schedule_remove_response(
            &RemoveScheduleSelector::All,
            &ScheduleRemoveResponse {
                removed_ids: vec!["s1".to_string(), "s2".to_string()],
            },
        );

        assert_eq!(output, "removed: all schedules\nscope: all spaces");
    }

    #[test]
    fn format_schedule_remove_response_renders_space_scope() {
        let output = format_schedule_remove_response(
            &RemoveScheduleSelector::Scope {
                scope: ScheduleScope::Space {
                    space: "uiux".to_string(),
                },
            },
            &ScheduleRemoveResponse {
                removed_ids: vec!["s1".to_string(), "s2".to_string()],
            },
        );

        assert_eq!(output, "removed: schedules\nspace: uiux");
    }

    #[test]
    fn format_schedule_remove_response_renders_collection_scope() {
        let output = format_schedule_remove_response(
            &RemoveScheduleSelector::Scope {
                scope: ScheduleScope::Collections {
                    space: "uiux".to_string(),
                    collections: vec!["docs".to_string(), "notes".to_string()],
                },
            },
            &ScheduleRemoveResponse {
                removed_ids: vec!["s1".to_string(), "s2".to_string()],
            },
        );

        assert_eq!(
            output,
            "removed: schedules\nspace: uiux\ncollections: docs, notes"
        );
    }

    #[test]
    fn format_schedule_remove_response_renders_empty_state() {
        let output = format_schedule_remove_response(
            &RemoveScheduleSelector::All,
            &ScheduleRemoveResponse {
                removed_ids: Vec::new(),
            },
        );

        assert_eq!(output, "removed: no schedules\nscope: all spaces");
    }

    #[test]
    fn colored_schedule_remove_response_marks_identities() {
        let output = format_schedule_remove_response_color(
            &RemoveScheduleSelector::Scope {
                scope: ScheduleScope::Collections {
                    space: "uiux".to_string(),
                    collections: vec!["docs".to_string(), "notes".to_string()],
                },
            },
            &ScheduleRemoveResponse {
                removed_ids: vec!["s1".to_string()],
            },
            true,
        );

        assert_eq!(
            output,
            "removed: schedules\nspace: \x1b[34muiux\x1b[0m\ncollections: \x1b[34mdocs\x1b[0m, \x1b[34mnotes\x1b[0m"
        );
    }

    fn make_update_report(errors: Vec<FileError>, failed_docs: usize) -> UpdateReport {
        UpdateReport {
            scanned_docs: 0,
            skipped_mtime_docs: 0,
            skipped_hash_docs: 0,
            added_docs: 0,
            updated_docs: 0,
            failed_docs,
            deactivated_docs: 0,
            reactivated_docs: 0,
            reaped_docs: 0,
            embedded_chunks: 0,
            decisions: Vec::new(),
            errors,
            elapsed_ms: 0,
        }
    }

    fn make_file_error(path: &str) -> FileError {
        FileError {
            path: path.to_string(),
            error: "test failure".to_string(),
        }
    }

    fn make_collection_info(space: &str, name: &str) -> CollectionInfo {
        CollectionInfo {
            name: name.to_string(),
            space: space.to_string(),
            path: PathBuf::from("/tmp/x"),
            description: None,
            extensions: None,
            document_count: 0,
            active_document_count: 0,
            chunk_count: 0,
            embedded_chunk_count: 0,
            created: "2026-04-18T00:00:00Z".to_string(),
            updated: "2026-04-18T00:00:00Z".to_string(),
        }
    }

    #[test]
    fn append_update_error_lines_returns_true_when_truncated() {
        let report = make_update_report(
            vec![
                make_file_error("a.md"),
                make_file_error("b.md"),
                make_file_error("c.md"),
                make_file_error("d.md"),
            ],
            4,
        );
        let mut lines = Vec::new();
        let truncated = append_update_error_lines(&mut lines, &report, 3);
        assert!(truncated);
        assert!(lines.iter().any(|l| l == "- 1 more error(s)"));
    }

    #[test]
    fn append_update_error_lines_returns_false_within_limit() {
        let report = make_update_report(vec![make_file_error("a.md"), make_file_error("b.md")], 2);
        let mut lines = Vec::new();
        let truncated = append_update_error_lines(&mut lines, &report, 3);
        assert!(!truncated);
        assert!(!lines.iter().any(|l| l.contains("more error(s)")));
    }

    #[test]
    fn format_update_report_emits_verbose_hint_on_truncation() {
        let report = make_update_report(
            vec![
                make_file_error("a.md"),
                make_file_error("b.md"),
                make_file_error("c.md"),
                make_file_error("d.md"),
            ],
            4,
        );
        let output = format_update_report(&report, false, false);
        assert!(
            output.contains("- 1 more error(s)"),
            "expected truncation summary: {output}"
        );
        assert!(
            output.contains("next:\n- run with --verbose for the full error list"),
            "expected verbose hint: {output}"
        );
    }

    #[test]
    fn format_update_report_omits_verbose_hint_without_truncation() {
        let report = make_update_report(vec![make_file_error("a.md"), make_file_error("b.md")], 2);
        let output = format_update_report(&report, false, false);
        assert!(
            !output.contains("more error(s)"),
            "expected no truncation: {output}"
        );
        assert!(
            !output.contains("--verbose"),
            "expected no verbose hint: {output}"
        );
    }

    #[test]
    fn format_collection_add_indexing_upgrades_next_to_verbose_when_truncated() {
        let collection = make_collection_info("default", "notes");
        let report = make_update_report(
            vec![
                make_file_error("a.md"),
                make_file_error("b.md"),
                make_file_error("c.md"),
                make_file_error("d.md"),
            ],
            4,
        );
        let result = AddCollectionResult {
            collection,
            initial_indexing: InitialIndexingOutcome::Indexed(report),
        };
        let output = format_collection_add_result(&result);
        assert!(
            output.contains("kbolt --space default update --verbose --collection notes"),
            "expected --verbose in next command: {output}"
        );
    }

    #[test]
    fn format_collection_add_indexing_omits_verbose_when_not_truncated() {
        let collection = make_collection_info("default", "notes");
        let report = make_update_report(vec![make_file_error("a.md"), make_file_error("b.md")], 2);
        let result = AddCollectionResult {
            collection,
            initial_indexing: InitialIndexingOutcome::Indexed(report),
        };
        let output = format_collection_add_result(&result);
        assert!(
            output.contains("kbolt --space default update --collection notes"),
            "expected plain update command: {output}"
        );
        assert!(
            !output.contains("--verbose"),
            "expected no verbose flag: {output}"
        );
    }

    #[test]
    fn format_collection_add_indexing_emits_next_block_when_truncated_without_failed_docs() {
        let collection = make_collection_info("default", "notes");
        let report = make_update_report(
            vec![
                make_file_error("a.md"),
                make_file_error("b.md"),
                make_file_error("c.md"),
                make_file_error("d.md"),
            ],
            0, // no failed_docs, but still >3 errors — the edge case
        );
        let result = AddCollectionResult {
            collection,
            initial_indexing: InitialIndexingOutcome::Indexed(report),
        };
        let output = format_collection_add_result(&result);
        assert!(
            output.contains("next:"),
            "expected a next block despite failed_docs=0: {output}"
        );
        assert!(
            output.contains("kbolt --space default update --verbose --collection notes"),
            "expected --verbose update in next: {output}"
        );
    }

    #[test]
    fn format_collection_add_indexing_shell_quotes_space_and_name_in_next() {
        let collection = make_collection_info("team notes", "cold docs");
        let report = make_update_report(
            vec![
                make_file_error("a.md"),
                make_file_error("b.md"),
                make_file_error("c.md"),
                make_file_error("d.md"),
            ],
            4,
        );
        let result = AddCollectionResult {
            collection,
            initial_indexing: InitialIndexingOutcome::Indexed(report),
        };
        let output = format_collection_add_result(&result);
        assert!(
            output.contains("kbolt --space 'team notes' update --verbose --collection 'cold docs'"),
            "expected space and name single-quoted: {output}"
        );
    }

    #[test]
    fn space_add_note_shell_quotes_space_name_with_whitespace() {
        with_isolated_xdg_dirs(|| {
            let root = tempdir().expect("create collection root");
            let engine = Engine::new(None).expect("create engine");
            let mut adapter = CliAdapter::new(engine);

            let dir = new_collection_dir(root.path(), "some-collection");
            let output = adapter
                .space_add("team notes", None, false, &[dir])
                .expect("add space with directories");

            assert!(
                output.contains("- kbolt --space 'team notes' update"),
                "expected quoted space in registration note: {output}"
            );
        });
    }

    #[test]
    fn format_collection_add_result_skipped_shell_quotes_space_and_name() {
        let collection = make_collection_info("team notes", "cold docs");
        let result = AddCollectionResult {
            collection,
            initial_indexing: InitialIndexingOutcome::Skipped,
        };
        let output = format_collection_add_result(&result);
        assert!(
            output.contains("kbolt --space 'team notes' update --collection 'cold docs'"),
            "expected quoted space and name in next block: {output}"
        );
    }

    #[test]
    fn format_collection_add_block_space_dense_repair_quotes_space_name() {
        let collection = make_collection_info("default", "notes");
        let result = AddCollectionResult {
            collection,
            initial_indexing: InitialIndexingOutcome::Blocked(
                InitialIndexingBlock::SpaceDenseRepairRequired {
                    space: "team notes".to_string(),
                    reason: "dimension mismatch".to_string(),
                },
            ),
        };
        let output = format_collection_add_result(&result);
        assert!(
            output.contains("kbolt --space 'team notes' update"),
            "expected quoted space in repair-required command: {output}"
        );
    }

    #[test]
    fn format_collection_add_block_model_not_available_quotes_space_and_name() {
        let collection = make_collection_info("team notes", "cold docs");
        let result = AddCollectionResult {
            collection,
            initial_indexing: InitialIndexingOutcome::Blocked(
                InitialIndexingBlock::ModelNotAvailable {
                    name: "embedder".to_string(),
                },
            ),
        };
        let output = format_collection_add_result(&result);
        assert!(
            output.contains("then run: kbolt --space 'team notes' update --collection 'cold docs'"),
            "expected quoted space and name in model-unavailable command: {output}"
        );
    }

    #[test]
    fn format_eval_import_report_shell_quotes_space_collection_and_paths() {
        let report = EvalImportReport {
            dataset: "fiqa".to_string(),
            source: "/tmp/fiqa".to_string(),
            output_dir: "/tmp/out".to_string(),
            corpus_dir: "/Users/me/My Data/corpus".to_string(),
            manifest_path: "/Users/me/My Data/eval.toml".to_string(),
            default_space: "bench space".to_string(),
            collection: "fiqa docs".to_string(),
            document_count: 0,
            query_count: 0,
            judgment_count: 0,
        };
        let output = format_eval_import_report(&report);
        assert!(
            output.contains("kbolt space add 'bench space'"),
            "expected quoted space in create command: {output}"
        );
        assert!(
            output.contains("kbolt --space 'bench space' collection add '/Users/me/My Data/corpus' --name 'fiqa docs' --no-index"),
            "expected quoted args in register command: {output}"
        );
        assert!(
            output.contains("kbolt --space 'bench space' update --collection 'fiqa docs'"),
            "expected quoted args in index command: {output}"
        );
        assert!(
            output.contains("kbolt eval run --file '/Users/me/My Data/eval.toml'"),
            "expected quoted manifest path in eval run command: {output}"
        );
    }

    #[test]
    fn colored_eval_import_report_marks_paths_and_command_segments() {
        let report = EvalImportReport {
            dataset: "fiqa".to_string(),
            source: "/tmp/fiqa".to_string(),
            output_dir: "/tmp/out".to_string(),
            corpus_dir: "/Users/me/My Data/corpus".to_string(),
            manifest_path: "/Users/me/My Data/eval.toml".to_string(),
            default_space: "bench space".to_string(),
            collection: "fiqa docs".to_string(),
            document_count: 0,
            query_count: 0,
            judgment_count: 0,
        };
        let output = format_eval_import_report_color(&report, true);

        assert!(output.contains("source: \x1b[34m/tmp/fiqa\x1b[0m"));
        assert!(output.contains(
            "create the benchmark space if needed: \x1b[32mkbolt space add 'bench space'\x1b[0m"
        ));
        assert!(output.contains(
            "run eval: \x1b[32mkbolt eval run --file '/Users/me/My Data/eval.toml'\x1b[0m"
        ));
        assert!(!output.contains("\x1b[32mcreate the benchmark space if needed"));
    }
}