roboticus-cli 0.11.4

use super::*;
use std::path::Path;

use roboticus_core::{ProfileEntry, ProfileRegistry, home_dir};
use roboticus_db::agents::{SubAgentRow, upsert_sub_agent};
use serde::Deserialize;

// ── Manifest types ───────────────────────────────────────────────────────

// Fields populated by `toml::from_str` deserialization (manifest.toml parsing).
// Individually they appear unused, but the structs are read as a unit.
#[derive(Debug, Deserialize)]
#[allow(dead_code)]
struct AppManifest {
    package: PackageInfo,
    profile: ProfileInfo,
    requirements: Option<Requirements>,
}

#[derive(Debug, Deserialize)]
#[allow(dead_code)]
struct PackageInfo {
    name: String,
    version: String,
    description: String,
    author: Option<String>,
    #[serde(default)]
    min_roboticus_version: Option<String>,
}

#[derive(Debug, Deserialize)]
#[allow(dead_code)]
struct ProfileInfo {
    agent_name: String,
    agent_id: String,
    default_theme: Option<String>,
}

#[derive(Debug, Deserialize)]
#[allow(dead_code)]
struct Requirements {
    min_model_params: Option<String>,
    recommended_model: Option<String>,
    embedding_model: Option<String>,
    delegation_enabled: Option<bool>,
}

// Fields populated by `toml::from_str` deserialization (subagent TOML parsing).
#[derive(Debug, Deserialize)]
#[allow(dead_code)]
struct SubagentManifest {
    subagent: SubagentDef,
    observer: Option<ObserverDef>,
}

#[derive(Debug, Deserialize)]
#[allow(dead_code)]
struct SubagentDef {
    name: String,
    display_name: String,
    role: String,
    model: String,
    description: String,
    #[serde(default)]
    skills: Vec<String>,
}

#[derive(Debug, Deserialize)]
#[allow(dead_code)]
struct ObserverDef {
    enabled: bool,
    trigger: String,
    instruction: String,
}

// ── Commands ─────────────────────────────────────────────────────────────

/// `roboticus apps list` — show installed apps.
pub fn cmd_apps_list() -> Result<(), Box<dyn std::error::Error>> {
    let (DIM, BOLD, ACCENT, GREEN, YELLOW, RED, CYAN, RESET, MONO) = colors();
    let (OK, ACTION, WARN, DETAIL, ERR) = icons();

    let registry = ProfileRegistry::load()?;
    let profiles = registry.list();

    heading("Installed Apps");

    // Filter to app-installed profiles (source = "local" or "registry").
    let apps: Vec<_> = profiles
        .iter()
        .filter(|(_, e)| matches!(e.source.as_deref(), Some("local") | Some("registry")))
        .collect();

    if apps.is_empty() {
        empty_state("No apps installed. Run `roboticus apps install <path>` to add one.");
        return Ok(());
    }

    let widths = [22, 22, 10, 10, 8];
    table_header(&["ID", "Name", "Version", "Source", "Active"], &widths);

    for (id, entry) in &apps {
        let active_str = if entry.active {
            format!("{GREEN}{OK}{RESET}")
        } else {
            String::new()
        };
        let version = entry.version.as_deref().unwrap_or("-");
        let source = entry.source.as_deref().unwrap_or("?");

        // Try to read manifest for richer metadata.
        let profile_dir = home_dir().join(".roboticus").join(&entry.path);
        let manifest_path = profile_dir.join("manifest.toml");
        let display_name = if let Ok(contents) = std::fs::read_to_string(&manifest_path) {
            if let Ok(manifest) = toml::from_str::<AppManifest>(&contents) {
                manifest.package.description.clone()
            } else {
                entry.name.clone()
            }
        } else {
            entry.name.clone()
        };

        table_row(
            &[
                format!("{ACCENT}{id}{RESET}"),
                display_name,
                version.to_string(),
                source.to_string(),
                active_str,
            ],
            &widths,
        );
    }

    eprintln!();
    eprintln!("    {DIM}{} app(s) installed{RESET}", apps.len());
    eprintln!();
    Ok(())
}

/// `roboticus apps install <source>` — install an app from a local path or registry.
pub fn cmd_apps_install(source: &str) -> Result<(), Box<dyn std::error::Error>> {
    let (DIM, BOLD, ACCENT, GREEN, YELLOW, RED, CYAN, RESET, MONO) = colors();
    let (OK, ACTION, WARN, DETAIL, ERR) = icons();

    // Detect source type.
    if source.starts_with("https://") || source.starts_with("http://") {
        eprintln!(
            "  {WARN} GitHub registry install is not yet supported. Use a local directory path."
        );
        eprintln!("  {DIM}Example: roboticus apps install /path/to/app{RESET}");
        return Ok(());
    }

    let source_dir = Path::new(source);
    if !source_dir.is_dir() {
        return Err(format!("source path is not a directory: {source}").into());
    }

    // ── 1. Read and parse manifest ───────────────────────────────────────
    let manifest_path = source_dir.join("manifest.toml");
    if !manifest_path.exists() {
        return Err(format!(
            "no manifest.toml found in {}. Is this a Roboticus app?",
            source_dir.display()
        )
        .into());
    }

    let manifest_contents = std::fs::read_to_string(&manifest_path)?;
    let manifest: AppManifest = toml::from_str(&manifest_contents)
        .map_err(|e| format!("failed to parse manifest.toml: {e}"))?;

    let app_id = &manifest.package.name;
    let agent_name = &manifest.profile.agent_name;
    let agent_id = &manifest.profile.agent_id;

    eprintln!(
        "  {ACTION} Installing {BOLD}{}{RESET} v{}...",
        manifest.package.description, manifest.package.version
    );

    // ── 2. Register profile ──────────────────────────────────────────────
    let mut registry = ProfileRegistry::load()?;

    if registry.profiles.contains_key(app_id) {
        return Err(format!(
            "app '{app_id}' is already installed. Uninstall first with `roboticus apps uninstall {app_id}`"
        )
        .into());
    }

    let rel_path = format!("profiles/{app_id}");
    let entry = ProfileEntry {
        name: agent_name.clone(),
        description: Some(manifest.package.description.clone()),
        path: rel_path.clone(),
        active: false,
        installed_at: Some(chrono_now()),
        version: Some(manifest.package.version.clone()),
        source: Some("local".to_string()),
    };

    registry.profiles.insert(app_id.clone(), entry);
    registry.save()?;

    // ── 3. Create profile directory structure ────────────────────────────
    let profile_dir = registry.ensure_profile_dir(app_id)?;

    // Also create themes dir if the app ships themes.
    let themes_src = source_dir.join("themes");
    if themes_src.is_dir() {
        std::fs::create_dir_all(profile_dir.join("themes"))?;
    }

    // ── 4. Copy files ────────────────────────────────────────────────────
    let mut skills_count = 0u32;
    let mut themes_count = 0u32;

    // FIRMWARE.toml → workspace/
    let firmware_src = source_dir.join("FIRMWARE.toml");
    if firmware_src.exists() {
        let workspace_dir = profile_dir.join("workspace");
        std::fs::create_dir_all(&workspace_dir)?;
        std::fs::copy(&firmware_src, workspace_dir.join("FIRMWARE.toml"))?;
    }

    // skills/*.md → skills/
    let skills_src = source_dir.join("skills");
    if skills_src.is_dir() {
        let skills_dst = profile_dir.join("skills");
        std::fs::create_dir_all(&skills_dst)?;
        for entry in std::fs::read_dir(&skills_src)? {
            let entry = entry?;
            let path = entry.path();
            if path.extension().and_then(|e| e.to_str()) == Some("md") {
                let filename = path.file_name().unwrap();
                std::fs::copy(&path, skills_dst.join(filename))?;
                skills_count += 1;
            }
        }
    }

    // themes/*.json → themes/
    if themes_src.is_dir() {
        let themes_dst = profile_dir.join("themes");
        std::fs::create_dir_all(&themes_dst)?;
        for entry in std::fs::read_dir(&themes_src)? {
            let entry = entry?;
            let path = entry.path();
            if path.extension().and_then(|e| e.to_str()) == Some("json") {
                let filename = path.file_name().unwrap();
                std::fs::copy(&path, themes_dst.join(filename))?;
                themes_count += 1;
            }
        }
    }

    // manifest.toml → profile root (for reference).
    std::fs::copy(&manifest_path, profile_dir.join("manifest.toml"))?;

    // ── 5. Generate profile config ───────────────────────────────────────
    // Strategy: copy the user's default roboticus.toml as a base (so all required
    // sections like [server], [providers], [cache], etc. are present), then overlay
    // the app-specific fields on top.
    let db_path = profile_dir.join(format!("{agent_id}.db"));
    let workspace_path = profile_dir.join("workspace");
    let skills_dir = profile_dir.join("skills");

    let default_config_path = roboticus_core::home_dir()
        .join(".roboticus")
        .join("roboticus.toml");
    let mut config: toml::Table = if default_config_path.exists() {
        let raw = std::fs::read_to_string(&default_config_path)?;
        raw.parse().unwrap_or_default()
    } else {
        toml::Table::new()
    };

    // Overlay app-specific agent fields
    let agent_tbl = config
        .entry("agent")
        .or_insert_with(|| toml::Value::Table(toml::Table::new()))
        .as_table_mut()
        .unwrap();
    agent_tbl.insert("name".into(), toml::Value::String(agent_name.clone()));
    agent_tbl.insert("id".into(), toml::Value::String(agent_id.clone()));
    agent_tbl.insert(
        "workspace".into(),
        toml::Value::String(workspace_path.display().to_string()),
    );

    // Overlay database path
    let db_tbl = config
        .entry("database")
        .or_insert_with(|| toml::Value::Table(toml::Table::new()))
        .as_table_mut()
        .unwrap();
    db_tbl.insert(
        "path".into(),
        toml::Value::String(db_path.display().to_string()),
    );

    // Overlay skills dir
    let skills_tbl = config
        .entry("skills")
        .or_insert_with(|| toml::Value::Table(toml::Table::new()))
        .as_table_mut()
        .unwrap();
    skills_tbl.insert(
        "skills_dir".into(),
        toml::Value::String(skills_dir.display().to_string()),
    );

    // Overlay recommended model if specified
    if let Some(ref reqs) = manifest.requirements
        && let Some(ref model) = reqs.recommended_model
    {
        let models_tbl = config
            .entry("models")
            .or_insert_with(|| toml::Value::Table(toml::Table::new()))
            .as_table_mut()
            .unwrap();
        models_tbl.insert("primary".into(), toml::Value::String(model.clone()));
    }

    // Deep-merge config-overrides.toml into the config table.
    let overrides_path = source_dir.join("config-overrides.toml");
    if overrides_path.exists() {
        let raw = std::fs::read_to_string(&overrides_path)?;
        let overrides: toml::Table = raw.parse().unwrap_or_default();
        deep_merge_toml(&mut config, &overrides);
    }

    // Serialize the merged config.
    let config_toml = format!(
        "# Auto-generated by `roboticus apps install` — do not edit manually.\n\
         # App: {} v{}\n\n{}",
        manifest.package.name,
        manifest.package.version,
        toml::to_string_pretty(&config).unwrap_or_default(),
    );

    std::fs::write(profile_dir.join("roboticus.toml"), &config_toml)?;

    // ── 6. Register subagents ────────────────────────────────────────────
    let mut subagent_names: Vec<String> = Vec::new();
    let subagents_src = source_dir.join("subagents");

    if subagents_src.is_dir() {
        // Create the database and run migrations.
        let db = roboticus_db::Database::new(db_path.to_str().unwrap_or(""))
            .map_err(|e| format!("failed to create database: {e}"))?;

        for entry in std::fs::read_dir(&subagents_src)? {
            let entry = entry?;
            let path = entry.path();
            if path.extension().and_then(|e| e.to_str()) != Some("toml") {
                continue;
            }

            let contents = std::fs::read_to_string(&path)?;
            let sa_manifest: SubagentManifest = toml::from_str(&contents).map_err(|e| {
                format!("failed to parse subagent manifest {}: {e}", path.display())
            })?;

            let skills_json = if sa_manifest.subagent.skills.is_empty() {
                None
            } else {
                Some(serde_json::to_string(&sa_manifest.subagent.skills)?)
            };

            // If the manifest declares an observer, set role to "observer"
            // so the post-turn dispatch system recognizes it. The observer
            // instruction is stored in the description field as a prefix.
            let effective_role = if sa_manifest.observer.as_ref().is_some_and(|o| o.enabled) {
                "observer".to_string()
            } else {
                sa_manifest.subagent.role
            };

            let effective_description = if let Some(ref obs) = sa_manifest.observer {
                if obs.enabled {
                    Some(format!(
                        "[observer: {}] {}",
                        obs.instruction, sa_manifest.subagent.description
                    ))
                } else {
                    Some(sa_manifest.subagent.description)
                }
            } else {
                Some(sa_manifest.subagent.description)
            };

            let row = SubAgentRow {
                id: uuid::Uuid::new_v4().to_string(),
                name: sa_manifest.subagent.name.clone(),
                display_name: Some(sa_manifest.subagent.display_name.clone()),
                model: sa_manifest.subagent.model,
                fallback_models_json: None,
                role: effective_role,
                description: effective_description,
                skills_json,
                enabled: true,
                session_count: 0,
                last_used_at: None,
            };

            upsert_sub_agent(&db, &row)
                .map_err(|e| format!("failed to register subagent '{}': {e}", row.name))?;

            subagent_names.push(sa_manifest.subagent.display_name);
        }
    }

    // ── 7. Print success ─────────────────────────────────────────────────
    eprintln!();
    eprintln!(
        "  {GREEN}{OK}{RESET} Installed: {BOLD}{}{RESET} v{}",
        manifest.package.description, manifest.package.version
    );
    eprintln!();
    eprintln!("    Profile:    {ACCENT}{app_id}{RESET}");
    eprintln!("    Agent:      {agent_name}");
    eprintln!("    Skills:     {skills_count}");

    if !subagent_names.is_empty() {
        eprintln!(
            "    Subagents:  {} ({})",
            subagent_names.len(),
            subagent_names.join(", ")
        );
    }

    if themes_count > 0 {
        eprintln!("    Themes:     {themes_count}");
    }

    eprintln!();
    eprintln!("  Launch:");
    eprintln!("    {MONO}roboticus serve --profile {app_id}{RESET}");
    eprintln!();
    eprintln!("  Or switch your active profile:");
    eprintln!("    {MONO}roboticus profile switch {app_id}{RESET}");
    eprintln!();

    Ok(())
}

/// `roboticus apps uninstall <name>` — remove an installed app.
pub fn cmd_apps_uninstall(name: &str, delete_data: bool) -> Result<(), Box<dyn std::error::Error>> {
    let (DIM, BOLD, ACCENT, GREEN, YELLOW, RED, CYAN, RESET, MONO) = colors();
    let (OK, ACTION, WARN, DETAIL, ERR) = icons();

    if name == "default" {
        return Err("cannot uninstall the built-in 'default' profile".into());
    }

    let mut registry = ProfileRegistry::load()?;

    let entry = registry
        .profiles
        .get(name)
        .cloned()
        .ok_or_else(|| format!("app '{name}' is not installed"))?;

    // Verify it is an app-installed profile.
    match entry.source.as_deref() {
        Some("local") | Some("registry") => {}
        _ => {
            return Err(format!(
                "'{name}' is a manually-created profile, not an app. \
                 Use `roboticus profile delete {name}` instead."
            )
            .into());
        }
    }

    if entry.active {
        return Err(format!(
            "app '{name}' is the active profile. \
             Switch to a different profile first: `roboticus profile switch default`"
        )
        .into());
    }

    let profile_dir = registry.resolve_config_dir(name)?;

    if delete_data {
        // Show what will be deleted and require confirmation.
        let (file_count, total_bytes) = dir_stats(&profile_dir);
        let size_display = if total_bytes > 1_048_576 {
            format!("{:.1} MB", total_bytes as f64 / 1_048_576.0)
        } else if total_bytes > 1024 {
            format!("{:.0} KB", total_bytes as f64 / 1024.0)
        } else {
            format!("{total_bytes} bytes")
        };

        eprintln!("  {WARN} This will permanently delete {file_count} files ({size_display}) at:");
        eprintln!("    {}", profile_dir.display());
        eprintln!();

        // Require the user to type the app name to confirm.
        let prompt = format!("  Type '{name}' to confirm deletion: ");
        eprint!("{prompt}");
        let mut input = String::new();
        std::io::stdin().read_line(&mut input)?;
        let input = input.trim();

        if input != name {
            eprintln!("  {DIM}Aborted.{RESET}");
            return Ok(());
        }

        // Safe-delete: only if under ~/.roboticus/profiles/
        let safe_root = home_dir().join(".roboticus").join("profiles");
        if profile_dir.starts_with(&safe_root) && profile_dir.exists() {
            std::fs::remove_dir_all(&profile_dir)?;
        }
    }

    registry.profiles.remove(name);
    registry.save()?;

    if delete_data {
        eprintln!(
            "  {GREEN}{OK}{RESET} Uninstalled app {ACCENT}{name}{RESET} and deleted all data"
        );
    } else {
        eprintln!(
            "  {GREEN}{OK}{RESET} Uninstalled app {ACCENT}{name}{RESET} (data kept at {})",
            profile_dir.display()
        );
    }
    eprintln!();

    Ok(())
}

// ── Helpers ──────────────────────────────────────────────────────────────

fn chrono_now() -> String {
    use std::time::{SystemTime, UNIX_EPOCH};
    let secs = SystemTime::now()
        .duration_since(UNIX_EPOCH)
        .map(|d| d.as_secs())
        .unwrap_or(0);
    format!("{secs}")
}

/// Walk a directory tree and return (file_count, total_bytes).
fn dir_stats(path: &Path) -> (u64, u64) {
    let mut files = 0u64;
    let mut bytes = 0u64;
    if let Ok(entries) = walkdir(path) {
        for (f, b) in entries {
            files += f;
            bytes += b;
        }
    }
    (files, bytes)
}

fn walkdir(path: &Path) -> Result<Vec<(u64, u64)>, std::io::Error> {
    let mut results = Vec::new();
    if !path.is_dir() {
        if let Ok(meta) = std::fs::metadata(path) {
            return Ok(vec![(1, meta.len())]);
        }
        return Ok(vec![]);
    }
    for entry in std::fs::read_dir(path)? {
        let entry = entry?;
        let ft = entry.file_type()?;
        if ft.is_dir() {
            results.extend(walkdir(&entry.path())?);
        } else {
            let size = entry.metadata().map(|m| m.len()).unwrap_or(0);
            results.push((1, size));
        }
    }
    Ok(results)
}

/// Recursively merge `overlay` into `base`. For table values, recurse; for all
/// other values, the overlay wins.
fn deep_merge_toml(base: &mut toml::Table, overlay: &toml::Table) {
    for (key, val) in overlay {
        match (base.get_mut(key), val) {
            (Some(toml::Value::Table(base_tbl)), toml::Value::Table(overlay_tbl)) => {
                deep_merge_toml(base_tbl, overlay_tbl);
            }
            _ => {
                base.insert(key.clone(), val.clone());
            }
        }
    }
}