rectilinear-core 0.7.0

mod hydration;
mod projects;
pub mod schema;
mod sync;
pub use hydration::*;
pub use projects::*;
pub use sync::*;
#[cfg(test)]
pub(crate) mod test_helpers;

use anyhow::{Context, Result};
use rusqlite::Connection;
use serde::{Deserialize, Serialize};
use std::path::Path;
use std::sync::{Arc, Mutex};

pub struct BlockerRow {
    pub issue_id: String,
    pub identifier: String,
    pub title: String,
    pub state_name: String,
    pub state_type: String,
}

#[derive(Clone)]
pub struct Database {
    conn: Arc<Mutex<Connection>>,
}

impl Database {
    pub fn open(path: &Path) -> Result<Self> {
        let conn = Connection::open(path)
            .with_context(|| format!("Failed to open database at {}", path.display()))?;

        conn.execute_batch("PRAGMA journal_mode=WAL; PRAGMA foreign_keys=ON;")?;

        let db = Self {
            conn: Arc::new(Mutex::new(conn)),
        };
        db.migrate()?;
        Ok(db)
    }

    fn migrate(&self) -> Result<()> {
        let conn = self.conn.lock().unwrap();
        schema::run_migrations(&conn)?;
        // A process may have exited while a resource was marked running. Make
        // that durable work retryable on the next open instead of leaving it
        // permanently wedged.
        conn.execute(
            "UPDATE issue_hydration_state
             SET status='retryable', next_retry_at=datetime('now'),
                 queue_reason='retry'
             WHERE status='running'",
            [],
        )?;
        Ok(())
    }

    pub fn with_conn<F, T>(&self, f: F) -> Result<T>
    where
        F: FnOnce(&Connection) -> Result<T>,
    {
        let conn = self.conn.lock().unwrap();
        f(&conn)
    }

    // --- Workspace CRUD ---

    pub fn upsert_workspace(
        &self,
        id: &str,
        linear_org_id: Option<&str>,
        display_name: Option<&str>,
    ) -> Result<()> {
        self.with_conn(|conn| {
            conn.execute(
                "INSERT INTO workspaces (id, linear_org_id, display_name)
                 VALUES (?1, ?2, ?3)
                 ON CONFLICT(id) DO UPDATE SET
                   linear_org_id=excluded.linear_org_id,
                   display_name=excluded.display_name",
                rusqlite::params![id, linear_org_id, display_name],
            )?;
            Ok(())
        })
    }

    pub fn get_workspace(&self, id: &str) -> Result<Option<WorkspaceRow>> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT id, linear_org_id, display_name, created_at FROM workspaces WHERE id = ?1",
            )?;
            let mut rows = stmt.query(rusqlite::params![id])?;
            if let Some(row) = rows.next()? {
                Ok(Some(WorkspaceRow {
                    id: row.get(0)?,
                    linear_org_id: row.get(1)?,
                    display_name: row.get(2)?,
                    created_at: row.get(3)?,
                }))
            } else {
                Ok(None)
            }
        })
    }

    pub fn list_workspaces(&self) -> Result<Vec<WorkspaceRow>> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT id, linear_org_id, display_name, created_at FROM workspaces ORDER BY id",
            )?;
            let rows = stmt.query_map([], |row| {
                Ok(WorkspaceRow {
                    id: row.get(0)?,
                    linear_org_id: row.get(1)?,
                    display_name: row.get(2)?,
                    created_at: row.get(3)?,
                })
            })?;
            Ok(rows.collect::<std::result::Result<Vec<_>, _>>()?)
        })
    }

    /// Delete a workspace and all its associated data (issues, chunks, comments, sync state).
    pub fn delete_workspace(&self, id: &str) -> Result<usize> {
        self.with_conn(|conn| {
            // Chunks and issue_relations cascade from issues via ON DELETE CASCADE
            let issue_count: usize = conn.query_row(
                "SELECT COUNT(*) FROM issues WHERE workspace_id = ?1",
                rusqlite::params![id],
                |row| row.get(0),
            )?;
            conn.execute(
                "DELETE FROM issues WHERE workspace_id = ?1",
                rusqlite::params![id],
            )?;
            conn.execute(
                "DELETE FROM comments WHERE workspace_id = ?1",
                rusqlite::params![id],
            )?;
            conn.execute(
                "DELETE FROM comment_sync_state WHERE workspace_id = ?1",
                rusqlite::params![id],
            )?;
            conn.execute(
                "DELETE FROM sync_state WHERE workspace_id = ?1",
                rusqlite::params![id],
            )?;
            conn.execute(
                "DELETE FROM sync_family_state WHERE workspace_id = ?1",
                rusqlite::params![id],
            )?;
            conn.execute(
                "DELETE FROM cycles WHERE workspace_id = ?1",
                rusqlite::params![id],
            )?;
            conn.execute(
                "DELETE FROM labels WHERE workspace_id = ?1",
                rusqlite::params![id],
            )?;
            conn.execute(
                "DELETE FROM projects WHERE workspace_id = ?1",
                rusqlite::params![id],
            )?;
            conn.execute(
                "DELETE FROM workspaces WHERE id = ?1",
                rusqlite::params![id],
            )?;
            Ok(issue_count)
        })
    }

    // --- Label CRUD ---

    pub fn upsert_label(&self, label: &Label) -> Result<()> {
        self.with_conn(|conn| {
            conn.execute(
                "INSERT INTO labels (id, workspace_id, name, color, parent_id)
                 VALUES (?1, ?2, ?3, ?4, ?5)
                 ON CONFLICT(id) DO UPDATE SET
                   workspace_id=excluded.workspace_id,
                   name=excluded.name,
                   color=excluded.color,
                   parent_id=excluded.parent_id",
                rusqlite::params![
                    label.id,
                    label.workspace_id,
                    label.name,
                    label.color,
                    label.parent_id
                ],
            )?;
            Ok(())
        })
    }

    pub fn list_labels(&self, workspace_id: &str) -> Result<Vec<Label>> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT id, workspace_id, name, color, parent_id
                 FROM labels WHERE workspace_id = ?1
                 ORDER BY name COLLATE NOCASE ASC",
            )?;
            let rows = stmt.query_map(rusqlite::params![workspace_id], |row| {
                Ok(Label {
                    id: row.get(0)?,
                    workspace_id: row.get(1)?,
                    name: row.get(2)?,
                    color: row.get(3)?,
                    parent_id: row.get(4)?,
                })
            })?;
            Ok(rows.collect::<std::result::Result<Vec<_>, _>>()?)
        })
    }

    /// Delete labels in `workspace_id` whose id is NOT in `keep_ids`.
    /// Returns the number of rows deleted. Cascades to `issue_labels`.
    pub fn delete_labels_for_workspace_not_in(
        &self,
        workspace_id: &str,
        keep_ids: &[String],
    ) -> Result<usize> {
        self.with_conn(|conn| {
            if keep_ids.is_empty() {
                let n = conn.execute(
                    "DELETE FROM labels WHERE workspace_id = ?1",
                    rusqlite::params![workspace_id],
                )?;
                return Ok(n);
            }
            let placeholders = (0..keep_ids.len())
                .map(|i| format!("?{}", i + 2))
                .collect::<Vec<_>>()
                .join(", ");
            let sql = format!(
                "DELETE FROM labels WHERE workspace_id = ?1 AND id NOT IN ({placeholders})"
            );
            let mut params: Vec<Box<dyn rusqlite::types::ToSql>> =
                vec![Box::new(workspace_id.to_string())];
            for id in keep_ids {
                params.push(Box::new(id.clone()));
            }
            let param_refs: Vec<&dyn rusqlite::types::ToSql> =
                params.iter().map(|p| p.as_ref()).collect();
            let n = conn.execute(&sql, param_refs.as_slice())?;
            Ok(n)
        })
    }

    /// Resolve label names to ids using the local catalog (case-insensitive).
    /// Returns (resolved_ids, unknown_names). Order of resolved_ids is not guaranteed.
    pub fn resolve_label_ids_local(
        &self,
        workspace_id: &str,
        names: &[String],
    ) -> Result<(Vec<String>, Vec<String>)> {
        if names.is_empty() {
            return Ok((Vec::new(), Vec::new()));
        }
        self.with_conn(|conn| {
            let mut resolved = Vec::new();
            let mut unknown = Vec::new();
            let mut stmt = conn.prepare(
                "SELECT id FROM labels WHERE workspace_id = ?1 AND name = ?2 COLLATE NOCASE",
            )?;
            for name in names {
                let mut rows = stmt.query(rusqlite::params![workspace_id, name])?;
                if let Some(row) = rows.next()? {
                    resolved.push(row.get::<_, String>(0)?);
                } else {
                    unknown.push(name.clone());
                }
            }
            Ok((resolved, unknown))
        })
    }

    // --- Issue-Label Join CRUD ---

    /// Replace the label set for an issue. Atomic via transaction.
    /// Skips any label_ids not present in the `labels` table (logged at warn level via eprintln).
    pub fn replace_issue_labels(&self, issue_id: &str, label_ids: &[String]) -> Result<()> {
        self.with_conn(|conn| {
            let tx = conn.unchecked_transaction()?;
            tx.execute(
                "DELETE FROM issue_labels WHERE issue_id = ?1",
                rusqlite::params![issue_id],
            )?;
            for lid in label_ids {
                let exists: i64 = tx.query_row(
                    "SELECT COUNT(*) FROM labels WHERE id = ?1",
                    rusqlite::params![lid],
                    |r| r.get(0),
                )?;
                if exists == 0 {
                    eprintln!(
                        "warning: skipping unknown label id '{}' for issue '{}'",
                        lid, issue_id
                    );
                    continue;
                }
                tx.execute(
                    "INSERT OR IGNORE INTO issue_labels (issue_id, label_id) VALUES (?1, ?2)",
                    rusqlite::params![issue_id, lid],
                )?;
            }
            tx.commit()?;
            Ok(())
        })
    }

    pub fn get_issue_label_ids(&self, issue_id: &str) -> Result<Vec<String>> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT label_id FROM issue_labels WHERE issue_id = ?1 ORDER BY label_id",
            )?;
            let rows =
                stmt.query_map(rusqlite::params![issue_id], |row| row.get::<_, String>(0))?;
            Ok(rows.collect::<std::result::Result<Vec<_>, _>>()?)
        })
    }

    // --- Issue CRUD ---

    pub fn upsert_issue(&self, issue: &Issue) -> Result<()> {
        self.upsert_issue_with_label_policy(issue, false)
    }

    pub fn upsert_issue_preserving_labels(&self, issue: &Issue) -> Result<()> {
        self.upsert_issue_with_label_policy(issue, true)
    }

    fn upsert_issue_with_label_policy(&self, issue: &Issue, preserve_labels: bool) -> Result<()> {
        let embedding_content_hash =
            crate::embedding::issue_content_hash(&issue.title, issue.description.as_deref());
        self.with_conn(|conn| {
            conn.execute(
                "INSERT INTO issues (id, identifier, team_key, title, description, state_name, state_type, priority, assignee_name, project_name, labels_json, created_at, updated_at, content_hash, synced_at, url, branch_name, workspace_id, project_id, project_milestone_id, project_milestone_name, cycle_id, cycle_name, archived_at, embedding_content_hash)
                 VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11, ?12, ?13, ?14, datetime('now'), ?15, ?16, ?17, ?18, ?19, ?20, ?21, ?22, ?23, ?24)
                 ON CONFLICT(id) DO UPDATE SET
                   identifier=excluded.identifier, team_key=excluded.team_key, title=excluded.title,
                   description=excluded.description, state_name=excluded.state_name, state_type=excluded.state_type,
                   priority=excluded.priority, assignee_name=excluded.assignee_name, project_name=excluded.project_name,
                   labels_json=CASE WHEN ?25 THEN issues.labels_json ELSE excluded.labels_json END,
                   updated_at=excluded.updated_at,
                   content_hash=CASE WHEN ?25 THEN issues.content_hash ELSE excluded.content_hash END,
                   embedding_content_hash=excluded.embedding_content_hash,
                   url=excluded.url, branch_name=excluded.branch_name,
                   workspace_id=excluded.workspace_id, project_id=excluded.project_id,
                   project_milestone_id=excluded.project_milestone_id,
                   project_milestone_name=excluded.project_milestone_name,
                   cycle_id=excluded.cycle_id,
                   cycle_name=excluded.cycle_name,
                   archived_at=excluded.archived_at,
                   synced_at=datetime('now')",
                rusqlite::params![
                    issue.id, issue.identifier, issue.team_key, issue.title, issue.description,
                    issue.state_name, issue.state_type, issue.priority, issue.assignee_name,
                    issue.project_name, issue.labels_json, issue.created_at, issue.updated_at,
                    issue.content_hash, issue.url, issue.branch_name, issue.workspace_id,
                    issue.project_id, issue.project_milestone_id, issue.project_milestone_name,
                    issue.cycle_id, issue.cycle_name,
                    issue.archived_at,
                    embedding_content_hash,
                    preserve_labels,
                ],
            )?;
            Ok(())
        })
    }

    pub fn get_issue(&self, id_or_identifier: &str) -> Result<Option<Issue>> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT id, identifier, team_key, title, description, state_name, state_type, priority, assignee_name, project_name, labels_json, created_at, updated_at, content_hash, synced_at, url, branch_name, workspace_id, project_id, project_milestone_id, project_milestone_name, cycle_id, cycle_name, archived_at
                 FROM issues WHERE id = ?1 OR identifier = ?1"
            )?;
            let mut rows = stmt.query(rusqlite::params![id_or_identifier])?;
            if let Some(row) = rows.next()? {
                Ok(Some(Issue::from_row(row)?))
            } else {
                Ok(None)
            }
        })
    }

    /// Build a SQL fragment "<table_alias>.id IN (SELECT issue_id FROM issue_labels ...)"
    /// for AND-matching all of `label_ids`. Returns the fragment + bound params.
    /// Caller is responsible for prepending " AND " before splicing in.
    /// `param_offset` is the next free `?N` index (1-based).
    /// `table_alias` is the alias used by the outer query (e.g. "issues" or "i").
    fn label_filter_fragment(
        label_ids: &[String],
        param_offset: usize,
        table_alias: &str,
    ) -> (String, Vec<Box<dyn rusqlite::types::ToSql>>) {
        let n = label_ids.len();
        let placeholders = (0..n)
            .map(|i| format!("?{}", param_offset + i))
            .collect::<Vec<_>>()
            .join(", ");
        let sql = format!(
            "{table_alias}.id IN (\
                SELECT issue_id FROM issue_labels \
                WHERE label_id IN ({placeholders}) \
                GROUP BY issue_id \
                HAVING COUNT(DISTINCT label_id) = {n}\
             )"
        );
        let params: Vec<Box<dyn rusqlite::types::ToSql>> = label_ids
            .iter()
            .map(|s| Box::new(s.clone()) as Box<dyn rusqlite::types::ToSql>)
            .collect();
        (sql, params)
    }

    pub fn get_unprioritized_issues(
        &self,
        team_key: Option<&str>,
        include_completed: bool,
        workspace_id: &str,
    ) -> Result<Vec<Issue>> {
        self.get_unprioritized_issues_filtered(team_key, include_completed, workspace_id, None)
    }

    pub fn get_unprioritized_issues_filtered(
        &self,
        team_key: Option<&str>,
        include_completed: bool,
        workspace_id: &str,
        label_ids: Option<&[String]>,
    ) -> Result<Vec<Issue>> {
        self.with_conn(|conn| {
            let state_filter = if include_completed {
                ""
            } else {
                " AND state_type NOT IN ('completed', 'canceled')"
            };

            // Required base params come first; label-filter params (if any) are appended.
            let mut params: Vec<Box<dyn rusqlite::types::ToSql>> = Vec::new();
            let base_where: String = if let Some(team) = team_key {
                params.push(Box::new(team.to_string()));
                params.push(Box::new(workspace_id.to_string()));
                "team_key = ?1 AND workspace_id = ?2".to_string()
            } else {
                params.push(Box::new(workspace_id.to_string()));
                "workspace_id = ?1".to_string()
            };

            let label_clause = if let Some(ids) = label_ids.filter(|ids| !ids.is_empty()) {
                let (frag, mut lp) = Self::label_filter_fragment(ids, params.len() + 1, "issues");
                params.append(&mut lp);
                format!(" AND {frag}")
            } else {
                String::new()
            };

            let sql = format!(
                "SELECT id, identifier, team_key, title, description, state_name, state_type, priority, assignee_name, project_name, labels_json, created_at, updated_at, content_hash, synced_at, url, branch_name, workspace_id, project_id, project_milestone_id, project_milestone_name, cycle_id, cycle_name
                 FROM issues WHERE priority = 0{state_filter} AND {base_where}{label_clause}
                 ORDER BY created_at DESC"
            );

            let mut stmt = conn.prepare(&sql)?;
            let param_refs: Vec<&dyn rusqlite::types::ToSql> = params.iter().map(|p| p.as_ref()).collect();
            let rows = stmt.query_map(param_refs.as_slice(), |row| Ok(Issue::from_row(row).unwrap()))?;
            Ok(rows.collect::<std::result::Result<Vec<_>, _>>()?)
        })
    }

    pub fn get_issues_by_state_types(
        &self,
        team_key: &str,
        state_types: &[String],
        workspace_id: &str,
    ) -> Result<Vec<Issue>> {
        self.with_conn(|conn| {
            let placeholders: String = state_types
                .iter()
                .enumerate()
                .map(|(i, _)| format!("?{}", i + 3))
                .collect::<Vec<_>>()
                .join(", ");
            let sql = format!(
                "SELECT id, identifier, team_key, title, description, state_name, state_type, \
                 priority, assignee_name, project_name, labels_json, created_at, updated_at, \
                 content_hash, synced_at, url, branch_name, workspace_id, project_id, \
                 project_milestone_id, project_milestone_name, cycle_id, cycle_name \
                 FROM issues WHERE team_key = ?1 AND workspace_id = ?2 AND state_type IN ({placeholders}) \
                 ORDER BY priority ASC, created_at DESC"
            );
            let mut stmt = conn.prepare(&sql)?;
            let mut params: Vec<Box<dyn rusqlite::types::ToSql>> =
                vec![Box::new(team_key.to_string()), Box::new(workspace_id.to_string())];
            for st in state_types {
                params.push(Box::new(st.clone()));
            }
            let param_refs: Vec<&dyn rusqlite::types::ToSql> =
                params.iter().map(|p| p.as_ref()).collect();
            let rows = stmt.query_map(param_refs.as_slice(), |row| {
                Ok(Issue::from_row(row).unwrap())
            })?;
            Ok(rows.collect::<std::result::Result<Vec<_>, _>>()?)
        })
    }

    /// For a set of issue IDs, return all `blocked_by` relations with resolved state info.
    /// Returns (issue_id, blocker_identifier, blocker_title, blocker_state_name, blocker_state_type).
    pub fn get_blockers_for_issues(&self, issue_ids: &[String]) -> Result<Vec<BlockerRow>> {
        if issue_ids.is_empty() {
            return Ok(vec![]);
        }
        self.with_conn(|conn| {
            let placeholders: String = issue_ids
                .iter()
                .enumerate()
                .map(|(i, _)| format!("?{}", i + 1))
                .collect::<Vec<_>>()
                .join(", ");

            // Forward: issue has a "blocked_by" relation
            let sql_fwd = format!(
                "SELECT r.issue_id, COALESCE(i.identifier, r.related_issue_identifier),
                        COALESCE(i.title, ''), COALESCE(i.state_name, ''), COALESCE(i.state_type, '')
                 FROM issue_relations r
                 LEFT JOIN issues i ON r.related_issue_id = i.id
                 WHERE r.issue_id IN ({placeholders}) AND r.relation_type = 'blocked_by'"
            );

            // Inverse: another issue has a "blocks" relation pointing at this issue
            let sql_inv = format!(
                "SELECT r.related_issue_id, i2.identifier,
                        COALESCE(i2.title, ''), COALESCE(i2.state_name, ''), COALESCE(i2.state_type, '')
                 FROM issue_relations r
                 JOIN issues i ON r.related_issue_id = i.id
                 JOIN issues i2 ON r.issue_id = i2.id
                 WHERE r.related_issue_id IN ({placeholders}) AND r.relation_type = 'blocks'"
            );

            let mut results = Vec::new();
            let params: Vec<Box<dyn rusqlite::types::ToSql>> =
                issue_ids.iter().map(|id| Box::new(id.clone()) as _).collect();
            let param_refs: Vec<&dyn rusqlite::types::ToSql> =
                params.iter().map(|p| p.as_ref()).collect();

            for sql in [&sql_fwd, &sql_inv] {
                let mut stmt = conn.prepare(sql)?;
                let rows = stmt.query_map(param_refs.as_slice(), |row| {
                    Ok(BlockerRow {
                        issue_id: row.get(0)?,
                        identifier: row.get(1)?,
                        title: row.get(2)?,
                        state_name: row.get(3)?,
                        state_type: row.get(4)?,
                    })
                })?;
                for row in rows {
                    results.push(row?);
                }
            }
            Ok(results)
        })
    }

    pub fn count_issues(&self, team_key: Option<&str>, workspace_id: &str) -> Result<usize> {
        self.with_conn(|conn| {
            let count: usize = if let Some(team) = team_key {
                conn.query_row(
                    "SELECT COUNT(*) FROM issues WHERE team_key = ?1 AND workspace_id = ?2",
                    rusqlite::params![team, workspace_id],
                    |row| row.get(0),
                )?
            } else {
                conn.query_row(
                    "SELECT COUNT(*) FROM issues WHERE workspace_id = ?1",
                    rusqlite::params![workspace_id],
                    |row| row.get(0),
                )?
            };
            Ok(count)
        })
    }

    /// Count issues with each optional field populated. Returns (total, with_description, with_priority, with_labels, with_project).
    pub fn get_field_completeness(
        &self,
        team_key: Option<&str>,
        workspace_id: &str,
    ) -> Result<(usize, usize, usize, usize, usize)> {
        self.with_conn(|conn| {
            let (sql, params): (String, Vec<Box<dyn rusqlite::types::ToSql>>) =
                if let Some(team) = team_key {
                    (
                        "SELECT COUNT(*),
                                SUM(CASE WHEN description IS NOT NULL AND description != '' THEN 1 ELSE 0 END),
                                SUM(CASE WHEN priority > 0 THEN 1 ELSE 0 END),
                                SUM(CASE WHEN labels_json != '[]' THEN 1 ELSE 0 END),
                                SUM(CASE WHEN project_name IS NOT NULL AND project_name != '' THEN 1 ELSE 0 END)
                         FROM issues WHERE team_key = ?1 AND workspace_id = ?2"
                            .to_string(),
                        vec![Box::new(team.to_string()) as Box<dyn rusqlite::types::ToSql>, Box::new(workspace_id.to_string())],
                    )
                } else {
                    (
                        "SELECT COUNT(*),
                                SUM(CASE WHEN description IS NOT NULL AND description != '' THEN 1 ELSE 0 END),
                                SUM(CASE WHEN priority > 0 THEN 1 ELSE 0 END),
                                SUM(CASE WHEN labels_json != '[]' THEN 1 ELSE 0 END),
                                SUM(CASE WHEN project_name IS NOT NULL AND project_name != '' THEN 1 ELSE 0 END)
                         FROM issues WHERE workspace_id = ?1"
                            .to_string(),
                        vec![Box::new(workspace_id.to_string()) as Box<dyn rusqlite::types::ToSql>],
                    )
                };
            let param_refs: Vec<&dyn rusqlite::types::ToSql> =
                params.iter().map(|p| p.as_ref()).collect();
            let row = conn.query_row(&sql, param_refs.as_slice(), |row| {
                Ok((
                    row.get::<_, usize>(0)?,
                    row.get::<_, Option<usize>>(1)?.unwrap_or(0),
                    row.get::<_, Option<usize>>(2)?.unwrap_or(0),
                    row.get::<_, Option<usize>>(3)?.unwrap_or(0),
                    row.get::<_, Option<usize>>(4)?.unwrap_or(0),
                ))
            })?;
            Ok(row)
        })
    }

    /// List all issues with summary info (no description text). Supports pagination,
    /// optional team filter, and optional text filter on identifier/title.
    #[allow(unused_assignments)]
    pub fn list_all_issues(
        &self,
        team_key: Option<&str>,
        filter: Option<&str>,
        limit: usize,
        offset: usize,
        workspace_id: &str,
    ) -> Result<Vec<IssueSummary>> {
        self.with_conn(|conn| {
            let mut conditions = Vec::new();
            let mut params: Vec<Box<dyn rusqlite::types::ToSql>> = Vec::new();
            let mut param_idx = 1;

            // Always filter by workspace
            conditions.push(format!("i.workspace_id = ?{param_idx}"));
            params.push(Box::new(workspace_id.to_string()));
            param_idx += 1;

            if let Some(team) = team_key {
                conditions.push(format!("i.team_key = ?{param_idx}"));
                params.push(Box::new(team.to_string()));
                param_idx += 1;
            }

            if let Some(text) = filter {
                let like = format!("%{text}%");
                conditions.push(format!(
                    "(i.identifier LIKE ?{} OR i.title LIKE ?{})",
                    param_idx,
                    param_idx + 1
                ));
                params.push(Box::new(like.clone()));
                params.push(Box::new(like));
                param_idx += 2;
            }

            let _ = param_idx;

            let where_clause = if conditions.is_empty() {
                String::new()
            } else {
                format!("WHERE {}", conditions.join(" AND "))
            };

            let limit_idx = params.len() + 1;
            let offset_idx = params.len() + 2;

            let sql = format!(
                "SELECT i.id, i.identifier, i.team_key, i.title, i.state_name, i.state_type,
                        i.priority, i.project_name, i.labels_json, i.updated_at, i.url,
                        i.description IS NOT NULL AND i.description != '' AS has_desc,
                        EXISTS(SELECT 1 FROM chunks c WHERE c.issue_id = i.id) AS has_emb
                 FROM issues i
                 {where_clause}
                 ORDER BY i.updated_at DESC
                 LIMIT ?{limit_idx} OFFSET ?{offset_idx}"
            );
            params.push(Box::new(limit as i64));
            params.push(Box::new(offset as i64));

            let param_refs: Vec<&dyn rusqlite::types::ToSql> =
                params.iter().map(|p| p.as_ref()).collect();
            let mut stmt = conn.prepare(&sql)?;
            let rows = stmt.query_map(param_refs.as_slice(), |row| {
                let labels_json: String = row.get(8)?;
                let labels: Vec<String> = serde_json::from_str(&labels_json).unwrap_or_default();
                Ok(IssueSummary {
                    id: row.get(0)?,
                    identifier: row.get(1)?,
                    team_key: row.get(2)?,
                    title: row.get(3)?,
                    state_name: row.get(4)?,
                    state_type: row.get(5)?,
                    priority: row.get(6)?,
                    project_name: row.get(7)?,
                    labels,
                    updated_at: row.get(9)?,
                    url: row.get(10)?,
                    has_description: row.get(11)?,
                    has_embedding: row.get(12)?,
                })
            })?;
            Ok(rows.collect::<std::result::Result<Vec<_>, _>>()?)
        })
    }

    // --- Relations ---

    pub fn upsert_relations(&self, issue_id: &str, relations: &[Relation]) -> Result<()> {
        self.with_conn(|conn| {
            conn.execute(
                "DELETE FROM issue_relations WHERE issue_id = ?1",
                rusqlite::params![issue_id],
            )?;
            let mut stmt = conn.prepare(
                "INSERT OR IGNORE INTO issue_relations (id, issue_id, related_issue_id, related_issue_identifier, relation_type)
                 VALUES (?1, ?2, ?3, ?4, ?5)"
            )?;
            for rel in relations {
                stmt.execute(rusqlite::params![
                    rel.id, rel.issue_id, rel.related_issue_id,
                    rel.related_issue_identifier, rel.relation_type,
                ])?;
            }
            Ok(())
        })
    }

    pub fn get_relations_enriched(&self, issue_id: &str) -> Result<Vec<EnrichedRelation>> {
        self.with_conn(|conn| {
            // Relations where this issue is the source
            let mut stmt = conn.prepare(
                "SELECT r.id, r.relation_type, r.related_issue_identifier,
                        COALESCE(i.title, ''), COALESCE(i.state_name, ''), COALESCE(i.url, '')
                 FROM issue_relations r
                 LEFT JOIN issues i ON r.related_issue_id = i.id
                 WHERE r.issue_id = ?1",
            )?;
            let forward = stmt
                .query_map(rusqlite::params![issue_id], |row| {
                    Ok(EnrichedRelation {
                        relation_id: row.get(0)?,
                        relation_type: row.get(1)?,
                        issue_identifier: row.get(2)?,
                        issue_title: row.get(3)?,
                        issue_state: row.get(4)?,
                        issue_url: row.get(5)?,
                    })
                })?
                .collect::<std::result::Result<Vec<_>, _>>()?;

            // Relations where this issue is the target — flip direction
            let mut stmt2 = conn.prepare(
                "SELECT r.id, r.relation_type, i2.identifier,
                        COALESCE(i2.title, ''), COALESCE(i2.state_name, ''), COALESCE(i2.url, '')
                 FROM issue_relations r
                 JOIN issues i ON r.related_issue_id = i.id
                 JOIN issues i2 ON r.issue_id = i2.id
                 WHERE r.related_issue_id = i.id AND i.id = ?1",
            )?;
            let inverse = stmt2
                .query_map(rusqlite::params![issue_id], |row| {
                    let raw_type: String = row.get(1)?;
                    let flipped = match raw_type.as_str() {
                        "blocks" => "blocked_by".to_string(),
                        "blocked_by" => "blocks".to_string(),
                        other => other.to_string(), // related, duplicate are symmetric
                    };
                    Ok(EnrichedRelation {
                        relation_id: row.get(0)?,
                        relation_type: flipped,
                        issue_identifier: row.get(2)?,
                        issue_title: row.get(3)?,
                        issue_state: row.get(4)?,
                        issue_url: row.get(5)?,
                    })
                })?
                .collect::<std::result::Result<Vec<_>, _>>()?;

            let mut all = forward;
            all.extend(inverse);
            Ok(all)
        })
    }

    /// Look up a relation ID between two issues (by identifier) for deletion
    pub fn find_relation_id(
        &self,
        issue_id: &str,
        related_issue_id: &str,
        relation_type: &str,
    ) -> Result<Option<String>> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT id FROM issue_relations WHERE issue_id = ?1 AND related_issue_id = ?2 AND relation_type = ?3"
            )?;
            let mut rows = stmt.query(rusqlite::params![issue_id, related_issue_id, relation_type])?;
            if let Some(row) = rows.next()? {
                Ok(Some(row.get(0)?))
            } else {
                Ok(None)
            }
        })
    }

    // --- Chunks (embeddings) ---

    pub fn upsert_chunks(&self, issue_id: &str, chunks: &[(usize, String, Vec<u8>)]) -> Result<()> {
        self.upsert_chunks_with_model(issue_id, chunks, "")
    }

    pub fn upsert_chunks_with_model(
        &self,
        issue_id: &str,
        chunks: &[(usize, String, Vec<u8>)],
        model_name: &str,
    ) -> Result<()> {
        let source_content_hash = self.compute_issue_embedding_content_hash(issue_id)?;
        self.upsert_chunks_with_model_and_hash(issue_id, chunks, model_name, &source_content_hash)
    }

    pub fn upsert_chunks_with_model_and_hash(
        &self,
        issue_id: &str,
        chunks: &[(usize, String, Vec<u8>)],
        model_name: &str,
        source_content_hash: &str,
    ) -> Result<()> {
        self.with_conn(|conn| {
            let tx = conn.unchecked_transaction()?;
            let (title, description): (String, Option<String>) = tx.query_row(
                "SELECT title, description FROM issues WHERE id=?1",
                rusqlite::params![issue_id],
                |row| Ok((row.get(0)?, row.get(1)?)),
            )?;
            let current_hash =
                crate::embedding::issue_content_hash(&title, description.as_deref());
            if current_hash != source_content_hash {
                anyhow::bail!(
                    "issue '{issue_id}' changed while its embeddings were being generated"
                );
            }
            tx.execute(
                "DELETE FROM chunks WHERE issue_id = ?1",
                rusqlite::params![issue_id],
            )?;
            tx.execute(
                "UPDATE issues SET embedding_content_hash=?2 WHERE id=?1",
                rusqlite::params![issue_id, source_content_hash],
            )?;
            let mut stmt = tx.prepare(
                "INSERT INTO chunks (issue_id, chunk_index, chunk_text, embedding, model_name, source_content_hash) VALUES (?1, ?2, ?3, ?4, ?5, ?6)"
            )?;
            for (idx, text, embedding) in chunks {
                stmt.execute(rusqlite::params![
                    issue_id,
                    idx,
                    text,
                    embedding,
                    model_name,
                    source_content_hash
                ])?;
            }
            drop(stmt);
            tx.commit()?;
            Ok(())
        })
    }

    /// Get the embedding model name for an issue's chunks, if any exist.
    pub fn get_embedding_model(&self, issue_id: &str) -> Result<Option<String>> {
        self.with_conn(|conn| {
            let mut stmt =
                conn.prepare("SELECT model_name FROM chunks WHERE issue_id = ?1 LIMIT 1")?;
            let mut rows = stmt.query(rusqlite::params![issue_id])?;
            if let Some(row) = rows.next()? {
                let name: String = row.get(0)?;
                Ok(if name.is_empty() { None } else { Some(name) })
            } else {
                Ok(None)
            }
        })
    }

    pub fn compute_issue_embedding_content_hash(&self, issue_id: &str) -> Result<String> {
        self.with_conn(|conn| {
            let (title, description): (String, Option<String>) = conn.query_row(
                "SELECT title, description FROM issues WHERE id=?1",
                rusqlite::params![issue_id],
                |row| Ok((row.get(0)?, row.get(1)?)),
            )?;
            Ok(crate::embedding::issue_content_hash(
                &title,
                description.as_deref(),
            ))
        })
    }

    pub fn get_all_chunks(&self, workspace_id: &str) -> Result<Vec<Chunk>> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT c.issue_id, c.embedding, i.identifier
                 FROM chunks c JOIN issues i ON c.issue_id = i.id
                 WHERE i.workspace_id = ?1",
            )?;
            let rows = stmt.query_map(rusqlite::params![workspace_id], |row| {
                Ok(Chunk {
                    issue_id: row.get(0)?,
                    embedding: row.get(1)?,
                    identifier: row.get(2)?,
                })
            })?;
            Ok(rows.collect::<std::result::Result<Vec<_>, _>>()?)
        })
    }

    pub fn get_chunks_for_team(&self, team_key: &str, workspace_id: &str) -> Result<Vec<Chunk>> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT c.issue_id, c.embedding, i.identifier
                 FROM chunks c JOIN issues i ON c.issue_id = i.id
                 WHERE i.team_key = ?1 AND i.workspace_id = ?2",
            )?;
            let rows = stmt.query_map(rusqlite::params![team_key, workspace_id], |row| {
                Ok(Chunk {
                    issue_id: row.get(0)?,
                    embedding: row.get(1)?,
                    identifier: row.get(2)?,
                })
            })?;
            Ok(rows.collect::<std::result::Result<Vec<_>, _>>()?)
        })
    }

    pub fn count_embedded_issues(
        &self,
        team_key: Option<&str>,
        workspace_id: &str,
    ) -> Result<usize> {
        self.with_conn(|conn| {
            let count: usize = if let Some(team) = team_key {
                conn.query_row(
                    "SELECT COUNT(DISTINCT c.issue_id) FROM chunks c JOIN issues i ON c.issue_id = i.id WHERE i.team_key = ?1 AND i.workspace_id = ?2",
                    rusqlite::params![team, workspace_id],
                    |row| row.get(0),
                )?
            } else {
                conn.query_row(
                    "SELECT COUNT(DISTINCT c.issue_id) FROM chunks c JOIN issues i ON c.issue_id = i.id WHERE i.workspace_id = ?1",
                    rusqlite::params![workspace_id],
                    |row| row.get(0),
                )?
            };
            Ok(count)
        })
    }

    pub fn get_issues_needing_embedding(
        &self,
        team_key: Option<&str>,
        force: bool,
        workspace_id: &str,
    ) -> Result<Vec<Issue>> {
        self.get_issues_needing_embedding_for_model(team_key, force, workspace_id, None)
    }

    pub fn get_issues_needing_embedding_for_model(
        &self,
        team_key: Option<&str>,
        force: bool,
        workspace_id: &str,
        model_name: Option<&str>,
    ) -> Result<Vec<Issue>> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT i.id, i.identifier, i.team_key, i.title, i.description,
                        i.state_name, i.state_type, i.priority, i.assignee_name,
                        i.project_name, i.labels_json, i.created_at, i.updated_at,
                        i.content_hash, i.synced_at, i.url, i.branch_name,
                        i.workspace_id, i.project_id, i.project_milestone_id,
                        i.project_milestone_name, i.cycle_id, i.cycle_name,
                        i.archived_at, i.embedding_content_hash,
                        c.model_name, c.source_content_hash, c.issue_id
                 FROM issues i
                 JOIN issue_hydration_state h
                   ON h.workspace_id=i.workspace_id AND h.issue_id=i.id
                  AND h.resource='details' AND h.status='hydrated'
                 LEFT JOIN (
                    SELECT issue_id, MIN(model_name) AS model_name,
                           MIN(source_content_hash) AS source_content_hash
                    FROM chunks GROUP BY issue_id
                 ) c ON c.issue_id=i.id
                 WHERE i.workspace_id=?1 AND (?2 IS NULL OR i.team_key=?2)
                 ORDER BY julianday(i.updated_at) DESC, i.identifier ASC",
            )?;
            let rows = stmt.query_map(rusqlite::params![workspace_id, team_key], |row| {
                Ok((
                    Issue::from_row(row)?,
                    row.get::<_, String>(24)?,
                    row.get::<_, Option<String>>(25)?,
                    row.get::<_, Option<String>>(26)?,
                    row.get::<_, Option<String>>(27)?,
                ))
            })?;
            let mut issues = Vec::new();
            for row in rows {
                let (issue, current_hash, embedded_model, embedded_hash, chunk_issue_id) = row?;
                let needs_embedding = force
                    || chunk_issue_id.is_none()
                    || current_hash.is_empty()
                    || embedded_hash.as_deref().unwrap_or_default().is_empty()
                    || embedded_hash.as_deref() != Some(current_hash.as_str())
                    || model_name.is_some_and(|model| embedded_model.as_deref() != Some(model));
                if needs_embedding {
                    issues.push(issue);
                }
            }
            Ok(issues)
        })
    }

    // --- Comments ---

    pub fn get_comments(&self, issue_id: &str) -> Result<Vec<Comment>> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT id, issue_id, body, user_name, created_at, updated_at, parent_id, url, workspace_id
                 FROM comments
                 WHERE issue_id = ?1
                 ORDER BY created_at"
            )?;
            let rows = stmt.query_map(rusqlite::params![issue_id], |row| {
                Ok(Comment {
                    id: row.get(0)?,
                    issue_id: row.get(1)?,
                    body: row.get(2)?,
                    user_name: row.get(3)?,
                    created_at: row.get(4)?,
                    updated_at: row.get(5)?,
                    parent_id: row.get(6)?,
                    url: row.get(7)?,
                    workspace_id: row.get(8)?,
                })
            })?;
            Ok(rows.collect::<std::result::Result<Vec<_>, _>>()?)
        })
    }

    pub fn replace_issue_comments(
        &self,
        issue_id: &str,
        workspace_id: &str,
        comments: &[Comment],
    ) -> Result<()> {
        self.with_conn(|conn| {
            let tx = conn.unchecked_transaction()?;
            tx.execute(
                "DELETE FROM comments WHERE issue_id = ?1 AND workspace_id = ?2",
                rusqlite::params![issue_id, workspace_id],
            )?;
            for comment in comments {
                tx.execute(
                    "INSERT INTO comments
                        (id, issue_id, body, user_name, created_at, workspace_id, updated_at, parent_id, url)
                     VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9)
                     ON CONFLICT(id) DO UPDATE SET
                        issue_id=excluded.issue_id,
                        body=excluded.body,
                        user_name=excluded.user_name,
                        created_at=excluded.created_at,
                        workspace_id=excluded.workspace_id,
                        updated_at=excluded.updated_at,
                        parent_id=excluded.parent_id,
                        url=excluded.url",
                    rusqlite::params![
                        comment.id,
                        comment.issue_id,
                        comment.body,
                        comment.user_name,
                        comment.created_at,
                        workspace_id,
                        comment.updated_at,
                        comment.parent_id,
                        comment.url,
                    ],
                )?;
            }
            tx.commit()?;
            Ok(())
        })
    }

    pub fn get_comment_sync_state(&self, issue_id: &str) -> Result<CommentSyncState> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT status, sync_error, synced_at
                 FROM comment_sync_state
                 WHERE issue_id = ?1",
            )?;
            let mut rows = stmt.query(rusqlite::params![issue_id])?;
            if let Some(row) = rows.next()? {
                Ok(CommentSyncState {
                    status: row.get(0)?,
                    sync_error: row.get(1)?,
                    synced_at: row.get(2)?,
                })
            } else {
                Ok(CommentSyncState::not_synced())
            }
        })
    }

    pub fn mark_comments_synced(
        &self,
        issue_id: &str,
        workspace_id: &str,
        comment_count: usize,
    ) -> Result<()> {
        let status = if comment_count == 0 {
            "none_found"
        } else {
            "synced"
        };
        self.set_comment_sync_state(issue_id, workspace_id, status, None)
    }

    pub fn mark_comments_sync_failed(
        &self,
        issue_id: &str,
        workspace_id: &str,
        status: &str,
        error: &str,
    ) -> Result<()> {
        self.set_comment_sync_state(issue_id, workspace_id, status, Some(error))
    }

    fn set_comment_sync_state(
        &self,
        issue_id: &str,
        workspace_id: &str,
        status: &str,
        error: Option<&str>,
    ) -> Result<()> {
        self.with_conn(|conn| {
            conn.execute(
                "INSERT INTO comment_sync_state (issue_id, workspace_id, status, sync_error, synced_at)
                 VALUES (?1, ?2, ?3, ?4, datetime('now'))
                 ON CONFLICT(issue_id) DO UPDATE SET
                    workspace_id=excluded.workspace_id,
                    status=excluded.status,
                    sync_error=excluded.sync_error,
                    synced_at=datetime('now')",
                rusqlite::params![issue_id, workspace_id, status, error],
            )?;
            Ok(())
        })
    }

    // --- Sync state ---

    pub fn get_sync_cursor(&self, workspace_id: &str, team_key: &str) -> Result<Option<String>> {
        self.get_synced_through_at(workspace_id, team_key)
    }

    pub fn get_synced_through_at(
        &self,
        workspace_id: &str,
        team_key: &str,
    ) -> Result<Option<String>> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT COALESCE(synced_through_at, last_updated_at)
                 FROM sync_state WHERE workspace_id = ?1 AND team_key = ?2",
            )?;
            let mut rows = stmt.query(rusqlite::params![workspace_id, team_key])?;
            if let Some(row) = rows.next()? {
                Ok(Some(row.get(0)?))
            } else {
                Ok(None)
            }
        })
    }

    pub fn set_sync_cursor(
        &self,
        workspace_id: &str,
        team_key: &str,
        last_updated_at: &str,
    ) -> Result<()> {
        self.with_conn(|conn| {
            conn.execute(
                "INSERT INTO sync_state (
                    workspace_id, team_key, last_updated_at, synced_through_at,
                    full_sync_done, last_synced_at
                 ) VALUES (?1, ?2, ?3, ?3, 1, datetime('now'))
                 ON CONFLICT(workspace_id, team_key) DO UPDATE SET
                    last_updated_at=excluded.last_updated_at,
                    synced_through_at=excluded.synced_through_at,
                    full_sync_done=1,
                    last_synced_at=datetime('now')",
                rusqlite::params![workspace_id, team_key, last_updated_at],
            )?;
            Ok(())
        })
    }

    pub fn is_full_sync_done(&self, workspace_id: &str, team_key: &str) -> Result<bool> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT full_sync_done FROM sync_state WHERE workspace_id = ?1 AND team_key = ?2",
            )?;
            let mut rows = stmt.query(rusqlite::params![workspace_id, team_key])?;
            if let Some(row) = rows.next()? {
                let done: bool = row.get(0)?;
                Ok(done)
            } else {
                Ok(false)
            }
        })
    }

    /// Get the wall-clock time of the last sync for a team.
    pub fn get_last_synced_at(&self, workspace_id: &str, team_key: &str) -> Result<Option<String>> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT last_synced_at FROM sync_state WHERE workspace_id = ?1 AND team_key = ?2",
            )?;
            let mut rows = stmt.query(rusqlite::params![workspace_id, team_key])?;
            if let Some(row) = rows.next()? {
                Ok(row.get(0)?)
            } else {
                Ok(None)
            }
        })
    }

    // --- Metadata ---

    pub fn get_metadata(&self, key: &str) -> Result<Option<String>> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare("SELECT value FROM metadata WHERE key = ?1")?;
            let mut rows = stmt.query(rusqlite::params![key])?;
            if let Some(row) = rows.next()? {
                Ok(Some(row.get(0)?))
            } else {
                Ok(None)
            }
        })
    }

    pub fn set_metadata(&self, key: &str, value: &str) -> Result<()> {
        self.with_conn(|conn| {
            conn.execute(
                "INSERT INTO metadata (key, value) VALUES (?1, ?2) ON CONFLICT(key) DO UPDATE SET value=excluded.value",
                rusqlite::params![key, value],
            )?;
            Ok(())
        })
    }

    // --- FTS search ---

    /// List teams that have synced issues, with issue and embedding counts.
    /// Local-only query — no network required.
    pub fn list_synced_teams(&self, workspace_id: &str) -> Result<Vec<TeamSummary>> {
        self.with_conn(|conn| {
            let mut stmt = conn.prepare(
                "SELECT i.team_key,
                        COUNT(DISTINCT i.id) AS issue_count,
                        COUNT(DISTINCT c.issue_id) AS embedded_count,
                        s.last_synced_at
                 FROM issues i
                 LEFT JOIN chunks c ON i.id = c.issue_id
                 LEFT JOIN sync_state s ON i.team_key = s.team_key AND s.workspace_id = ?1
                 WHERE i.workspace_id = ?1
                 GROUP BY i.team_key
                 ORDER BY i.team_key",
            )?;
            let rows = stmt.query_map(rusqlite::params![workspace_id], |row| {
                Ok(TeamSummary {
                    key: row.get(0)?,
                    issue_count: row.get(1)?,
                    embedded_count: row.get(2)?,
                    last_synced_at: row.get(3)?,
                })
            })?;
            Ok(rows.collect::<std::result::Result<Vec<_>, _>>()?)
        })
    }

    pub fn fts_search(
        &self,
        query: &str,
        limit: usize,
        workspace_id: &str,
    ) -> Result<Vec<FtsResult>> {
        self.fts_search_filtered(query, limit, workspace_id, None)
    }

    pub fn fts_search_filtered(
        &self,
        query: &str,
        limit: usize,
        workspace_id: &str,
        label_ids: Option<&[String]>,
    ) -> Result<Vec<FtsResult>> {
        self.with_conn(|conn| {
            let mut params: Vec<Box<dyn rusqlite::types::ToSql>> = vec![
                Box::new(query.to_string()),
                Box::new(limit as i64),
                Box::new(workspace_id.to_string()),
            ];

            let label_clause = if let Some(ids) = label_ids.filter(|ids| !ids.is_empty()) {
                let (frag, mut lp) = Self::label_filter_fragment(ids, params.len() + 1, "i");
                params.append(&mut lp);
                format!(" AND {frag}")
            } else {
                String::new()
            };

            let sql = format!(
                "SELECT i.id, i.identifier, i.title, i.state_name, i.priority, bm25(issues_fts) as rank
                 FROM issues_fts f
                 JOIN issues i ON f.rowid = i.rowid
                 WHERE issues_fts MATCH ?1 AND i.workspace_id = ?3{label_clause}
                 ORDER BY rank
                 LIMIT ?2"
            );
            let mut stmt = conn.prepare(&sql)?;
            let param_refs: Vec<&dyn rusqlite::types::ToSql> = params.iter().map(|p| p.as_ref()).collect();
            let rows = stmt.query_map(param_refs.as_slice(), |row| {
                Ok(FtsResult {
                    issue_id: row.get(0)?,
                    identifier: row.get(1)?,
                    title: row.get(2)?,
                    state_name: row.get(3)?,
                    priority: row.get(4)?,
                    bm25_score: row.get(5)?,
                })
            })?;
            Ok(rows.collect::<std::result::Result<Vec<_>, _>>()?)
        })
    }
}

// --- Data types ---

fn default_workspace_id() -> String {
    "default".to_string()
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Issue {
    pub id: String,
    pub identifier: String,
    pub team_key: String,
    pub title: String,
    pub description: Option<String>,
    pub state_name: String,
    pub state_type: String,
    pub priority: i32,
    pub assignee_name: Option<String>,
    pub project_name: Option<String>,
    pub labels_json: String,
    pub created_at: String,
    pub updated_at: String,
    pub content_hash: String,
    pub synced_at: Option<String>,
    pub url: String,
    pub branch_name: Option<String>,
    #[serde(default = "default_workspace_id")]
    pub workspace_id: String,
    pub project_id: Option<String>,
    pub project_milestone_id: Option<String>,
    pub project_milestone_name: Option<String>,
    pub cycle_id: Option<String>,
    pub cycle_name: Option<String>,
    pub archived_at: Option<String>,
}

impl Issue {
    pub fn from_row(row: &rusqlite::Row) -> rusqlite::Result<Self> {
        Ok(Self {
            id: row.get(0)?,
            identifier: row.get(1)?,
            team_key: row.get(2)?,
            title: row.get(3)?,
            description: row.get(4)?,
            state_name: row.get(5)?,
            state_type: row.get(6)?,
            priority: row.get(7)?,
            assignee_name: row.get(8)?,
            project_name: row.get(9)?,
            labels_json: row.get(10)?,
            created_at: row.get(11)?,
            updated_at: row.get(12)?,
            content_hash: row.get(13)?,
            synced_at: row.get(14)?,
            url: row.get(15)?,
            branch_name: row.get(16).unwrap_or(None),
            workspace_id: row.get(17).unwrap_or_else(|_| "default".to_string()),
            project_id: row.get(18).unwrap_or(None),
            project_milestone_id: row.get(19).unwrap_or(None),
            project_milestone_name: row.get(20).unwrap_or(None),
            cycle_id: row.get(21).unwrap_or(None),
            cycle_name: row.get(22).unwrap_or(None),
            archived_at: row.get(23).unwrap_or(None),
        })
    }

    pub fn labels(&self) -> Vec<String> {
        serde_json::from_str(&self.labels_json).unwrap_or_default()
    }

    pub fn priority_label(&self) -> &str {
        match self.priority {
            0 => "No priority",
            1 => "Urgent",
            2 => "High",
            3 => "Medium",
            4 => "Low",
            _ => "Unknown",
        }
    }
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Relation {
    pub id: String,
    pub issue_id: String,
    pub related_issue_id: String,
    pub related_issue_identifier: String,
    pub relation_type: String,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct EnrichedRelation {
    pub relation_id: String,
    pub relation_type: String,
    pub issue_identifier: String,
    pub issue_title: String,
    pub issue_state: String,
    pub issue_url: String,
}

#[derive(Debug, Clone)]
pub struct Chunk {
    pub issue_id: String,
    pub embedding: Vec<u8>,
    pub identifier: String,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Comment {
    pub id: String,
    pub issue_id: String,
    pub body: String,
    pub user_name: Option<String>,
    pub created_at: String,
    pub updated_at: Option<String>,
    pub parent_id: Option<String>,
    pub url: Option<String>,
    #[serde(default = "default_workspace_id")]
    pub workspace_id: String,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CommentSyncState {
    pub status: String,
    pub sync_error: Option<String>,
    pub synced_at: Option<String>,
}

impl CommentSyncState {
    pub fn not_synced() -> Self {
        Self {
            status: "not_synced".to_string(),
            sync_error: None,
            synced_at: None,
        }
    }
}

#[derive(Debug, Clone)]
pub struct FtsResult {
    pub issue_id: String,
    pub identifier: String,
    pub title: String,
    pub state_name: String,
    pub priority: i32,
    pub bm25_score: f64,
}

#[derive(Debug, Clone)]
pub struct IssueSummary {
    pub id: String,
    pub identifier: String,
    pub team_key: String,
    pub title: String,
    pub state_name: String,
    pub state_type: String,
    pub priority: i32,
    pub project_name: Option<String>,
    pub labels: Vec<String>,
    pub updated_at: String,
    pub url: String,
    pub has_description: bool,
    pub has_embedding: bool,
}

#[derive(Debug, Clone)]
pub struct TeamSummary {
    pub key: String,
    pub issue_count: usize,
    pub embedded_count: usize,
    pub last_synced_at: Option<String>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct WorkspaceRow {
    pub id: String,
    pub linear_org_id: Option<String>,
    pub display_name: Option<String>,
    pub created_at: String,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Label {
    pub id: String,
    pub workspace_id: String,
    pub name: String,
    pub color: Option<String>,
    pub parent_id: Option<String>,
}

#[cfg(test)]
mod tests {
    use super::test_helpers::*;
    use super::Comment;

    #[test]
    fn count_embedded_issues_empty_db() {
        let (db, _dir) = test_db();
        assert_eq!(db.count_embedded_issues(None, "default").unwrap(), 0);
    }

    #[test]
    fn comment_sync_state_defaults_to_not_synced() {
        let (db, _dir) = test_db();
        let issue = make_issue("TST-1", "TST");
        db.upsert_issue(&issue).unwrap();

        let state = db.get_comment_sync_state(&issue.id).unwrap();
        assert_eq!(state.status, "not_synced");
        assert!(state.synced_at.is_none());
        assert!(state.sync_error.is_none());
    }

    #[test]
    fn replace_issue_comments_preserves_thread_metadata() {
        let (db, _dir) = test_db();
        let issue = make_issue("TST-1", "TST");
        db.upsert_issue(&issue).unwrap();

        db.replace_issue_comments(
            &issue.id,
            "default",
            &[Comment {
                id: "comment-1".to_string(),
                issue_id: issue.id.clone(),
                body: "fixed in linked PR".to_string(),
                user_name: Some("Ada".to_string()),
                created_at: "2026-01-03T00:00:00Z".to_string(),
                updated_at: Some("2026-01-03T01:00:00Z".to_string()),
                parent_id: Some("parent-1".to_string()),
                url: Some("https://linear.app/comment/comment-1".to_string()),
                workspace_id: "default".to_string(),
            }],
        )
        .unwrap();
        db.mark_comments_synced(&issue.id, "default", 1).unwrap();

        let comments = db.get_comments(&issue.id).unwrap();
        assert_eq!(comments.len(), 1);
        assert_eq!(comments[0].parent_id.as_deref(), Some("parent-1"));
        assert_eq!(
            comments[0].updated_at.as_deref(),
            Some("2026-01-03T01:00:00Z")
        );
        assert_eq!(
            comments[0].url.as_deref(),
            Some("https://linear.app/comment/comment-1")
        );
        assert_eq!(
            db.get_comment_sync_state(&issue.id).unwrap().status,
            "synced"
        );
    }

    #[test]
    fn empty_comment_sync_records_none_found() {
        let (db, _dir) = test_db();
        let issue = make_issue("TST-1", "TST");
        db.upsert_issue(&issue).unwrap();

        db.replace_issue_comments(&issue.id, "default", &[])
            .unwrap();
        db.mark_comments_synced(&issue.id, "default", 0).unwrap();

        assert!(db.get_comments(&issue.id).unwrap().is_empty());
        let state = db.get_comment_sync_state(&issue.id).unwrap();
        assert_eq!(state.status, "none_found");
        assert!(state.synced_at.is_some());
    }

    #[test]
    fn count_embedded_issues_with_data() {
        let (db, _dir) = test_db();

        let issue1 = make_issue("TST-1", "TST");
        let issue2 = make_issue("TST-2", "TST");
        let issue3 = make_issue("OTH-1", "OTH");
        db.upsert_issue(&issue1).unwrap();
        db.upsert_issue(&issue2).unwrap();
        db.upsert_issue(&issue3).unwrap();

        // Only issue1 and issue3 have embeddings
        db.upsert_chunks(&issue1.id, &[(0, "chunk".into(), fake_embedding(768))])
            .unwrap();
        db.upsert_chunks(&issue3.id, &[(0, "chunk".into(), fake_embedding(768))])
            .unwrap();

        // Global count
        assert_eq!(db.count_embedded_issues(None, "default").unwrap(), 2);
        // Team filter
        assert_eq!(db.count_embedded_issues(Some("TST"), "default").unwrap(), 1);
        assert_eq!(db.count_embedded_issues(Some("OTH"), "default").unwrap(), 1);
        assert_eq!(
            db.count_embedded_issues(Some("NONE"), "default").unwrap(),
            0
        );
    }

    #[test]
    fn get_field_completeness_empty_db() {
        let (db, _dir) = test_db();
        let (total, desc, pri, labels, proj) = db.get_field_completeness(None, "default").unwrap();
        assert_eq!(total, 0);
        assert_eq!(desc, 0);
        assert_eq!(pri, 0);
        assert_eq!(labels, 0);
        assert_eq!(proj, 0);
    }

    #[test]
    fn get_field_completeness_with_data() {
        let (db, _dir) = test_db();

        // Issue with all fields
        let mut full = make_issue("TST-1", "TST");
        full.description = Some("Has desc".into());
        full.priority = 2;
        full.labels_json = r#"["bug"]"#.into();
        full.project_name = Some("Proj".into());
        db.upsert_issue(&full).unwrap();

        // Issue with no optional fields
        let mut sparse = make_issue("TST-2", "TST");
        sparse.description = None;
        sparse.priority = 0;
        sparse.labels_json = "[]".into();
        sparse.project_name = None;
        db.upsert_issue(&sparse).unwrap();

        // Issue on different team
        let mut other = make_issue("OTH-1", "OTH");
        other.description = Some("Has desc".into());
        other.priority = 0;
        other.labels_json = "[]".into();
        other.project_name = None;
        db.upsert_issue(&other).unwrap();

        // Global
        let (total, desc, pri, labels, proj) = db.get_field_completeness(None, "default").unwrap();
        assert_eq!(total, 3);
        assert_eq!(desc, 2); // full + other
        assert_eq!(pri, 1); // full only
        assert_eq!(labels, 1); // full only
        assert_eq!(proj, 1); // full only

        // Team filter
        let (total, desc, pri, labels, proj) =
            db.get_field_completeness(Some("TST"), "default").unwrap();
        assert_eq!(total, 2);
        assert_eq!(desc, 1);
        assert_eq!(pri, 1);
        assert_eq!(labels, 1);
        assert_eq!(proj, 1);
    }

    #[test]
    fn list_all_issues_pagination_and_filter() {
        let (db, _dir) = test_db();

        for i in 1..=5 {
            let mut issue = make_issue(&format!("TST-{i}"), "TST");
            issue.updated_at = format!("2026-01-0{i}T00:00:00Z");
            db.upsert_issue(&issue).unwrap();
        }
        let mut other = make_issue("OTH-1", "OTH");
        other.updated_at = "2026-01-06T00:00:00Z".to_string();
        db.upsert_issue(&other).unwrap();

        // All issues, first page
        let page1 = db.list_all_issues(None, None, 3, 0, "default").unwrap();
        assert_eq!(page1.len(), 3);
        // Ordered by updated_at DESC — OTH-1 is newest
        assert_eq!(page1[0].identifier, "OTH-1");

        // Second page
        let page2 = db.list_all_issues(None, None, 3, 3, "default").unwrap();
        assert_eq!(page2.len(), 3);

        // Third page (empty)
        let page3 = db.list_all_issues(None, None, 3, 6, "default").unwrap();
        assert_eq!(page3.len(), 0);

        // Team filter
        let tst = db
            .list_all_issues(Some("TST"), None, 10, 0, "default")
            .unwrap();
        assert_eq!(tst.len(), 5);

        // Text filter
        let filtered = db
            .list_all_issues(None, Some("TST-3"), 10, 0, "default")
            .unwrap();
        assert_eq!(filtered.len(), 1);
        assert_eq!(filtered[0].identifier, "TST-3");

        // Title filter
        let title_match = db
            .list_all_issues(None, Some("Test issue OTH"), 10, 0, "default")
            .unwrap();
        assert_eq!(title_match.len(), 1);
    }

    #[test]
    fn list_all_issues_has_embedding_flag() {
        let (db, _dir) = test_db();

        let issue1 = make_issue("TST-1", "TST");
        let issue2 = make_issue("TST-2", "TST");
        db.upsert_issue(&issue1).unwrap();
        db.upsert_issue(&issue2).unwrap();

        // Only issue1 gets an embedding
        db.upsert_chunks(&issue1.id, &[(0, "chunk".into(), fake_embedding(768))])
            .unwrap();

        let issues = db.list_all_issues(None, None, 10, 0, "default").unwrap();
        let by_id: std::collections::HashMap<_, _> =
            issues.iter().map(|i| (i.identifier.as_str(), i)).collect();

        assert!(by_id["TST-1"].has_embedding);
        assert!(!by_id["TST-2"].has_embedding);
    }

    #[test]
    fn list_synced_teams_empty_db() {
        let (db, _dir) = test_db();
        let teams = db.list_synced_teams("default").unwrap();
        assert!(teams.is_empty());
    }

    #[test]
    fn list_synced_teams_with_data() {
        let (db, _dir) = test_db();

        // 3 issues on TST, 1 on OTH
        for i in 1..=3 {
            let issue = make_issue(&format!("TST-{i}"), "TST");
            db.upsert_issue(&issue).unwrap();
            if i <= 2 {
                // Embed first 2
                db.upsert_chunks(&issue.id, &[(0, "chunk".into(), fake_embedding(768))])
                    .unwrap();
            }
        }
        let other = make_issue("OTH-1", "OTH");
        db.upsert_issue(&other).unwrap();

        let teams = db.list_synced_teams("default").unwrap();
        assert_eq!(teams.len(), 2);

        // Sorted by team_key
        let by_key: std::collections::HashMap<_, _> =
            teams.iter().map(|t| (t.key.as_str(), t)).collect();

        assert_eq!(by_key["TST"].issue_count, 3);
        assert_eq!(by_key["TST"].embedded_count, 2);
        assert_eq!(by_key["OTH"].issue_count, 1);
        assert_eq!(by_key["OTH"].embedded_count, 0);
    }

    #[test]
    fn list_synced_teams_includes_last_synced_at() {
        let (db, _dir) = test_db();

        let issue = make_issue("TST-1", "TST");
        db.upsert_issue(&issue).unwrap();

        // Before any sync, last_synced_at should be None
        let teams = db.list_synced_teams("default").unwrap();
        assert_eq!(teams.len(), 1);
        assert!(teams[0].last_synced_at.is_none());

        // After setting sync cursor, last_synced_at should be set
        db.set_sync_cursor("default", "TST", "2026-01-01T00:00:00Z")
            .unwrap();
        let teams = db.list_synced_teams("default").unwrap();
        assert!(teams[0].last_synced_at.is_some());
    }

    #[test]
    fn list_synced_teams_multi_chunk_issue() {
        let (db, _dir) = test_db();

        let issue = make_issue("TST-1", "TST");
        db.upsert_issue(&issue).unwrap();
        // Insert multiple chunks for the same issue — count should still be 1
        db.upsert_chunks(
            &issue.id,
            &[
                (0, "chunk0".into(), fake_embedding(768)),
                (1, "chunk1".into(), fake_embedding(768)),
                (2, "chunk2".into(), fake_embedding(768)),
            ],
        )
        .unwrap();

        let teams = db.list_synced_teams("default").unwrap();
        assert_eq!(teams.len(), 1);
        assert_eq!(teams[0].issue_count, 1); // not 3
        assert_eq!(teams[0].embedded_count, 1);
    }

    #[test]
    fn workspace_crud() {
        let (db, _dir) = test_db();

        // Default workspace exists from migration
        let ws = db.get_workspace("default").unwrap();
        assert!(ws.is_some());

        // Upsert a new workspace
        db.upsert_workspace("work", None, None).unwrap();
        let ws = db.get_workspace("work").unwrap().unwrap();
        assert_eq!(ws.id, "work");
        assert!(ws.linear_org_id.is_none());

        // Update with org info
        db.upsert_workspace("work", Some("org-123"), Some("Work Org"))
            .unwrap();
        let ws = db.get_workspace("work").unwrap().unwrap();
        assert_eq!(ws.linear_org_id.as_deref(), Some("org-123"));
        assert_eq!(ws.display_name.as_deref(), Some("Work Org"));

        // List all
        let all = db.list_workspaces().unwrap();
        assert_eq!(all.len(), 2);

        // Delete
        db.delete_workspace("work").unwrap();
        let ws = db.get_workspace("work").unwrap();
        assert!(ws.is_none());
    }

    #[test]
    fn issues_isolated_by_workspace() {
        let (db, _dir) = test_db();

        // Create second workspace
        db.upsert_workspace("work", None, None).unwrap();

        // Insert issue in default workspace
        let mut issue1 = make_issue("TST-1", "TST");
        issue1.workspace_id = "default".to_string();
        issue1.priority = 0;
        db.upsert_issue(&issue1).unwrap();

        // Insert issue in work workspace
        let mut issue2 = make_issue("TST-2", "TST");
        issue2.id = "id-2".to_string();
        issue2.workspace_id = "work".to_string();
        issue2.priority = 0;
        db.upsert_issue(&issue2).unwrap();

        // Count scoped to each workspace
        assert_eq!(db.count_issues(None, "default").unwrap(), 1);
        assert_eq!(db.count_issues(None, "work").unwrap(), 1);

        // Unprioritized scoped
        let default_unpri = db.get_unprioritized_issues(None, false, "default").unwrap();
        assert_eq!(default_unpri.len(), 1);
        assert_eq!(default_unpri[0].identifier, "TST-1");

        let work_unpri = db.get_unprioritized_issues(None, false, "work").unwrap();
        assert_eq!(work_unpri.len(), 1);
        assert_eq!(work_unpri[0].identifier, "TST-2");
    }

    #[test]
    fn sync_state_isolated_by_workspace() {
        let (db, _dir) = test_db();
        db.upsert_workspace("work", None, None).unwrap();

        // Set cursor for same team in different workspaces
        db.set_sync_cursor("default", "TST", "2024-01-01T00:00:00Z")
            .unwrap();
        db.set_sync_cursor("work", "TST", "2024-06-01T00:00:00Z")
            .unwrap();

        assert_eq!(
            db.get_sync_cursor("default", "TST").unwrap().as_deref(),
            Some("2024-01-01T00:00:00Z")
        );
        assert_eq!(
            db.get_sync_cursor("work", "TST").unwrap().as_deref(),
            Some("2024-06-01T00:00:00Z")
        );

        assert!(db.is_full_sync_done("default", "TST").unwrap());
        assert!(db.is_full_sync_done("work", "TST").unwrap());
        assert!(!db.is_full_sync_done("default", "OTHER").unwrap());
    }

    #[test]
    fn list_synced_teams_workspace_scoped() {
        let (db, _dir) = test_db();
        db.upsert_workspace("work", None, None).unwrap();

        let mut issue1 = make_issue("TST-1", "TST");
        issue1.workspace_id = "default".to_string();
        db.upsert_issue(&issue1).unwrap();

        let mut issue2 = make_issue("WRK-1", "WRK");
        issue2.id = "id-wrk".to_string();
        issue2.workspace_id = "work".to_string();
        db.upsert_issue(&issue2).unwrap();

        let default_teams = db.list_synced_teams("default").unwrap();
        assert_eq!(default_teams.len(), 1);
        assert_eq!(default_teams[0].key, "TST");

        let work_teams = db.list_synced_teams("work").unwrap();
        assert_eq!(work_teams.len(), 1);
        assert_eq!(work_teams[0].key, "WRK");
    }

    #[test]
    fn migration_8_creates_label_tables_and_resets_sync_state() {
        let dir = tempfile::tempdir().unwrap();
        let path = dir.path().join("test.db");
        let conn = rusqlite::Connection::open(&path).unwrap();

        conn.execute_batch("PRAGMA journal_mode=WAL; PRAGMA foreign_keys=ON;")
            .unwrap();

        // Run migrations 1-7 only
        crate::db::schema::run_migrations(&conn).unwrap();

        // Delete from schema_version to simulate being at version 7
        conn.execute("DELETE FROM schema_version WHERE version >= 8", [])
            .unwrap();

        // Seed sync_state as if a prior sync had completed
        conn.execute(
            "INSERT INTO sync_state (workspace_id, team_key, last_updated_at, full_sync_done, last_synced_at)
             VALUES ('default', 'ENG', '2026-04-01T00:00:00Z', 1, '2026-04-01T00:00:00Z')",
            [],
        )
        .unwrap();

        // Verify the sync_state row before migration 8
        let full_done_before: i64 = conn
            .query_row(
                "SELECT full_sync_done FROM sync_state WHERE workspace_id='default' AND team_key='ENG'",
                [],
                |r| r.get(0),
            )
            .unwrap();
        assert_eq!(full_done_before, 1);

        // Run migrations again — migration 8 should now run
        crate::db::schema::run_migrations(&conn).unwrap();

        // Tables exist
        let labels_count: i64 = conn
            .query_row(
                "SELECT COUNT(*) FROM sqlite_master WHERE type='table' AND name='labels'",
                [],
                |r| r.get(0),
            )
            .unwrap();
        assert_eq!(labels_count, 1);
        let join_count: i64 = conn
            .query_row(
                "SELECT COUNT(*) FROM sqlite_master WHERE type='table' AND name='issue_labels'",
                [],
                |r| r.get(0),
            )
            .unwrap();
        assert_eq!(join_count, 1);

        // sync_state reset
        let full_done: i64 = conn
            .query_row(
                "SELECT full_sync_done FROM sync_state WHERE workspace_id='default' AND team_key='ENG'",
                [],
                |r| r.get(0),
            )
            .unwrap();
        assert_eq!(full_done, 0);
        let last_updated: String = conn
            .query_row(
                "SELECT last_updated_at FROM sync_state WHERE workspace_id='default' AND team_key='ENG'",
                [],
                |r| r.get(0),
            )
            .unwrap();
        assert_eq!(last_updated, "1970-01-01T00:00:00Z");
    }

    #[test]
    fn migration_10_repairs_missing_project_join_tables() {
        let dir = tempfile::tempdir().unwrap();
        let path = dir.path().join("test.db");
        let conn = rusqlite::Connection::open(&path).unwrap();

        crate::db::schema::run_migrations(&conn).unwrap();
        conn.execute("DROP TABLE project_labels", []).unwrap();

        let version: i64 = conn
            .query_row("SELECT MAX(version) FROM schema_version", [], |row| {
                row.get(0)
            })
            .unwrap();
        assert_eq!(version, 13);

        crate::db::schema::run_migrations(&conn).unwrap();

        let table_count: i64 = conn
            .query_row(
                "SELECT COUNT(*) FROM sqlite_master WHERE type='table' AND name='project_labels'",
                [],
                |row| row.get(0),
            )
            .unwrap();
        assert_eq!(table_count, 1);
    }

    #[test]
    fn upsert_label_inserts_and_renames_in_place() {
        use super::test_helpers::{make_label, test_db};
        let (db, _dir) = test_db();

        let mut l = make_label("lbl_1", "Vanta", "default");
        db.upsert_label(&l).unwrap();

        let listed = db.list_labels("default").unwrap();
        assert_eq!(listed.len(), 1);
        assert_eq!(listed[0].name, "Vanta");

        // Rename — same id, new name
        l.name = "Compliance".to_string();
        db.upsert_label(&l).unwrap();

        let listed = db.list_labels("default").unwrap();
        assert_eq!(listed.len(), 1);
        assert_eq!(listed[0].name, "Compliance");
    }

    #[test]
    fn list_labels_is_workspace_scoped_and_sorted() {
        use super::test_helpers::{make_label, test_db};
        let (db, _dir) = test_db();
        db.upsert_workspace("work", None, None).unwrap();

        db.upsert_label(&make_label("a", "Zebra", "default"))
            .unwrap();
        db.upsert_label(&make_label("b", "Apple", "default"))
            .unwrap();
        db.upsert_label(&make_label("c", "OnlyInWork", "work"))
            .unwrap();

        let default_labels = db.list_labels("default").unwrap();
        assert_eq!(
            default_labels
                .iter()
                .map(|l| l.name.as_str())
                .collect::<Vec<_>>(),
            vec!["Apple", "Zebra"]
        );
        let work_labels = db.list_labels("work").unwrap();
        assert_eq!(work_labels.len(), 1);
        assert_eq!(work_labels[0].name, "OnlyInWork");
    }

    #[test]
    fn delete_labels_for_workspace_not_in_removes_orphans() {
        use super::test_helpers::{make_label, test_db};
        let (db, _dir) = test_db();

        db.upsert_label(&make_label("keep", "Keep", "default"))
            .unwrap();
        db.upsert_label(&make_label("drop", "Drop", "default"))
            .unwrap();

        let kept = db
            .delete_labels_for_workspace_not_in("default", &["keep".to_string()])
            .unwrap();
        assert_eq!(kept, 1, "should report 1 deleted");

        let listed = db.list_labels("default").unwrap();
        assert_eq!(listed.len(), 1);
        assert_eq!(listed[0].name, "Keep");
    }

    #[test]
    fn replace_issue_labels_overwrites_existing() {
        use super::test_helpers::{make_issue, make_label, test_db};
        let (db, _dir) = test_db();

        let issue = make_issue("ENG-1", "ENG");
        db.upsert_issue(&issue).unwrap();
        db.upsert_label(&make_label("l1", "Bug", "default"))
            .unwrap();
        db.upsert_label(&make_label("l2", "UI", "default")).unwrap();
        db.upsert_label(&make_label("l3", "Backend", "default"))
            .unwrap();

        db.replace_issue_labels(&issue.id, &["l1".to_string(), "l2".to_string()])
            .unwrap();
        let labels = db.get_issue_label_ids(&issue.id).unwrap();
        assert_eq!(labels, vec!["l1".to_string(), "l2".to_string()]);

        // Replace overwrites
        db.replace_issue_labels(&issue.id, &["l3".to_string()])
            .unwrap();
        let labels = db.get_issue_label_ids(&issue.id).unwrap();
        assert_eq!(labels, vec!["l3".to_string()]);
    }

    #[test]
    fn deleting_issue_cascades_to_issue_labels() {
        use super::test_helpers::{make_issue, make_label, test_db};
        let (db, _dir) = test_db();

        let issue = make_issue("ENG-2", "ENG");
        db.upsert_issue(&issue).unwrap();
        db.upsert_label(&make_label("l1", "Bug", "default"))
            .unwrap();
        db.replace_issue_labels(&issue.id, &["l1".to_string()])
            .unwrap();

        db.with_conn(|conn| {
            conn.execute(
                "DELETE FROM issues WHERE id = ?1",
                rusqlite::params![&issue.id],
            )?;
            let n: i64 = conn.query_row(
                "SELECT COUNT(*) FROM issue_labels WHERE issue_id = ?1",
                rusqlite::params![&issue.id],
                |r| r.get(0),
            )?;
            assert_eq!(n, 0);
            Ok(())
        })
        .unwrap();
    }

    #[test]
    fn deleting_label_cascades_to_issue_labels() {
        use super::test_helpers::{make_issue, make_label, test_db};
        let (db, _dir) = test_db();

        let issue = make_issue("ENG-3", "ENG");
        db.upsert_issue(&issue).unwrap();
        db.upsert_label(&make_label("l1", "Bug", "default"))
            .unwrap();
        db.replace_issue_labels(&issue.id, &["l1".to_string()])
            .unwrap();

        db.delete_labels_for_workspace_not_in("default", &[])
            .unwrap();
        let labels = db.get_issue_label_ids(&issue.id).unwrap();
        assert!(labels.is_empty());
    }

    #[test]
    fn resolve_label_ids_local_matches_case_insensitive_and_returns_unknowns() {
        use super::test_helpers::{make_label, test_db};
        let (db, _dir) = test_db();

        db.upsert_label(&make_label("l1", "Vanta", "default"))
            .unwrap();
        db.upsert_label(&make_label("l2", "Security", "default"))
            .unwrap();

        let (resolved, unknown) = db
            .resolve_label_ids_local(
                "default",
                &[
                    "vanta".to_string(),
                    "secURity".to_string(),
                    "missing".to_string(),
                ],
            )
            .unwrap();
        assert_eq!(resolved.len(), 2);
        assert!(resolved.contains(&"l1".to_string()));
        assert!(resolved.contains(&"l2".to_string()));
        assert_eq!(unknown, vec!["missing".to_string()]);
    }

    #[test]
    fn resolve_label_ids_local_is_workspace_scoped() {
        use super::test_helpers::{make_label, test_db};
        let (db, _dir) = test_db();
        db.upsert_workspace("work", None, None).unwrap();

        db.upsert_label(&make_label("l1", "Vanta", "default"))
            .unwrap();
        db.upsert_label(&make_label("l2", "Vanta", "work")).unwrap();

        let (resolved, _) = db
            .resolve_label_ids_local("work", &["vanta".to_string()])
            .unwrap();
        assert_eq!(resolved, vec!["l2".to_string()]);
    }

    #[test]
    fn get_unprioritized_issues_filters_by_labels_with_and_semantics() {
        use super::test_helpers::{make_issue, make_label, test_db};
        let (db, _dir) = test_db();

        let mut a = make_issue("ENG-10", "ENG");
        a.priority = 0;
        let mut b = make_issue("ENG-11", "ENG");
        b.priority = 0;
        let mut c = make_issue("ENG-12", "ENG");
        c.priority = 0;
        db.upsert_issue(&a).unwrap();
        db.upsert_issue(&b).unwrap();
        db.upsert_issue(&c).unwrap();

        db.upsert_label(&make_label("vanta", "Vanta", "default"))
            .unwrap();
        db.upsert_label(&make_label("sec", "Security", "default"))
            .unwrap();

        db.replace_issue_labels(&a.id, &["vanta".to_string(), "sec".to_string()])
            .unwrap();
        db.replace_issue_labels(&b.id, &["vanta".to_string()])
            .unwrap();
        db.replace_issue_labels(&c.id, &["sec".to_string()])
            .unwrap();

        // Filter by both labels (AND) → only `a`
        let result = db
            .get_unprioritized_issues_filtered(
                Some("ENG"),
                false,
                "default",
                Some(&["vanta".to_string(), "sec".to_string()]),
            )
            .unwrap();
        let idents: Vec<_> = result.iter().map(|i| i.identifier.as_str()).collect();
        assert_eq!(idents, vec!["ENG-10"]);

        // Filter by single label → `a` and `b`
        let result = db
            .get_unprioritized_issues_filtered(
                Some("ENG"),
                false,
                "default",
                Some(&["vanta".to_string()]),
            )
            .unwrap();
        let idents: Vec<_> = result.iter().map(|i| i.identifier.as_str()).collect();
        assert!(idents.contains(&"ENG-10"));
        assert!(idents.contains(&"ENG-11"));
        assert!(!idents.contains(&"ENG-12"));

        // No filter → all three
        let result = db
            .get_unprioritized_issues_filtered(Some("ENG"), false, "default", None)
            .unwrap();
        assert_eq!(result.len(), 3);
    }

    #[test]
    fn fts_search_with_label_filter_intersects() {
        use super::test_helpers::{make_issue, make_label, test_db};
        let (db, _dir) = test_db();

        let mut a = make_issue("ENG-20", "ENG");
        a.title = "Audit logging gap".to_string();
        let mut b = make_issue("ENG-21", "ENG");
        b.title = "Audit something else".to_string();
        db.upsert_issue(&a).unwrap();
        db.upsert_issue(&b).unwrap();

        db.upsert_label(&make_label("vanta", "Vanta", "default"))
            .unwrap();
        db.replace_issue_labels(&a.id, &["vanta".to_string()])
            .unwrap();

        // Without filter, both match "audit"
        let r = db
            .fts_search_filtered("\"audit\"", 10, "default", None)
            .unwrap();
        assert_eq!(r.len(), 2);

        // With Vanta filter, only `a`
        let r = db
            .fts_search_filtered("\"audit\"", 10, "default", Some(&["vanta".to_string()]))
            .unwrap();
        assert_eq!(r.len(), 1);
        assert_eq!(r[0].identifier, "ENG-20");
    }

    #[test]
    fn delete_workspace_cleans_up_labels() {
        use super::test_helpers::{make_label, test_db};
        let (db, _dir) = test_db();
        db.upsert_workspace("doomed", None, None).unwrap();
        db.upsert_label(&make_label("l1", "Lab", "doomed")).unwrap();
        db.delete_workspace("doomed").unwrap();
        let listed = db.list_labels("doomed").unwrap();
        assert!(listed.is_empty());
    }

    #[test]
    fn embedding_selection_requires_hydrated_details_and_tracks_model_and_content() {
        let (db, _dir) = test_db();
        let mut issue = make_issue("CUT-1", "CUT");
        issue.id = "issue-1".into();
        db.upsert_issue_index(
            &super::IssueIndexEntry {
                id: issue.id.clone(),
                identifier: issue.identifier.clone(),
                team_key: issue.team_key.clone(),
                title: issue.title.clone(),
                state_name: issue.state_name.clone(),
                state_type: issue.state_type.clone(),
                created_at: issue.created_at.clone(),
                updated_at: issue.updated_at.clone(),
                archived_at: None,
                url: issue.url.clone(),
            },
            "default",
            "index-1",
        )
        .unwrap();

        assert!(db
            .get_issues_needing_embedding_for_model(Some("CUT"), false, "default", Some("model-a"),)
            .unwrap()
            .is_empty());

        db.mark_hydration_complete(
            "default",
            "issue-1",
            super::HydrationResource::Details,
            &issue.updated_at,
            "2026-01-03T00:00:00Z",
        )
        .unwrap();
        assert_eq!(
            db.get_issues_needing_embedding_for_model(
                Some("CUT"),
                false,
                "default",
                Some("model-a"),
            )
            .unwrap()
            .len(),
            1
        );

        db.upsert_chunks_with_model(
            "issue-1",
            &[(0, "chunk".into(), fake_embedding(8))],
            "model-a",
        )
        .unwrap();
        assert!(db
            .get_issues_needing_embedding_for_model(Some("CUT"), false, "default", Some("model-a"),)
            .unwrap()
            .is_empty());
        assert_eq!(
            db.get_issues_needing_embedding_for_model(
                Some("CUT"),
                false,
                "default",
                Some("model-b"),
            )
            .unwrap()
            .len(),
            1
        );

        let mut hydrated = db.get_issue("issue-1").unwrap().unwrap();
        hydrated.description = Some("new hydrated content".into());
        db.upsert_issue(&hydrated).unwrap();
        assert_eq!(db.count_embedded_issues(Some("CUT"), "default").unwrap(), 1);
        assert_eq!(
            db.get_issues_needing_embedding_for_model(
                Some("CUT"),
                false,
                "default",
                Some("model-a"),
            )
            .unwrap()
            .len(),
            1
        );
    }

    #[test]
    fn index_change_waits_for_detail_rehydration_before_embedding() {
        let (db, _dir) = test_db();
        let mut issue = make_issue("CUT-1", "CUT");
        issue.id = "issue-1".into();
        db.upsert_issue(&issue).unwrap();
        db.ensure_hydration_state_for_issue("default", &issue, "migration")
            .unwrap();
        db.mark_hydration_complete(
            "default",
            &issue.id,
            super::HydrationResource::Details,
            &issue.updated_at,
            "2026-01-03T00:00:00Z",
        )
        .unwrap();
        db.upsert_chunks_with_model(
            &issue.id,
            &[(0, "chunk".into(), fake_embedding(8))],
            "model-a",
        )
        .unwrap();

        let new_updated_at = "2026-01-04T00:00:00Z";
        db.upsert_issue_index(
            &super::IssueIndexEntry {
                id: issue.id.clone(),
                identifier: issue.identifier.clone(),
                team_key: issue.team_key.clone(),
                title: "new indexed title".into(),
                state_name: issue.state_name.clone(),
                state_type: issue.state_type.clone(),
                created_at: issue.created_at.clone(),
                updated_at: new_updated_at.into(),
                archived_at: None,
                url: issue.url.clone(),
            },
            "default",
            "index-2",
        )
        .unwrap();
        assert!(db
            .get_issues_needing_embedding_for_model(None, false, "default", Some("model-a"))
            .unwrap()
            .is_empty());

        db.mark_hydration_complete(
            "default",
            &issue.id,
            super::HydrationResource::Details,
            new_updated_at,
            "2026-01-05T00:00:00Z",
        )
        .unwrap();
        assert_eq!(
            db.get_issues_needing_embedding_for_model(None, false, "default", Some("model-a"))
                .unwrap()
                .len(),
            1
        );
    }

    #[test]
    fn migration_13_keeps_legacy_hydrated_issues_embedding_eligible() {
        let dir = tempfile::tempdir().unwrap();
        let path = dir.path().join("legacy-embedding.db");
        {
            let db = super::Database::open(&path).unwrap();
            let mut issue = make_issue("CUT-1", "CUT");
            issue.id = "issue-1".into();
            db.upsert_issue(&issue).unwrap();
            db.ensure_hydration_state_for_issue("default", &issue, "migration")
                .unwrap();
            db.mark_hydration_complete(
                "default",
                &issue.id,
                super::HydrationResource::Details,
                &issue.updated_at,
                "2026-01-03T00:00:00Z",
            )
            .unwrap();
            db.upsert_chunks_with_model(
                &issue.id,
                &[(0, "legacy chunk".into(), fake_embedding(8))],
                "model-a",
            )
            .unwrap();
            db.with_conn(|conn| {
                conn.execute("UPDATE chunks SET source_content_hash=''", [])?;
                conn.execute("DELETE FROM schema_version WHERE version=13", [])?;
                Ok(())
            })
            .unwrap();
        }

        let migrated = super::Database::open(&path).unwrap();
        assert_eq!(
            migrated
                .get_issues_needing_embedding_for_model(
                    Some("CUT"),
                    false,
                    "default",
                    Some("model-a"),
                )
                .unwrap()
                .len(),
            1
        );
    }
}