package main

// search.go 全局搜索（Ctrl+K 命令面板）：项目 / 待办 / 工单 / AI 会话各取前 8 条。

import "strings"

// escapeLike 转义 LIKE 通配符，配合 ESCAPE '\' 使用。
func escapeLike(s string) string {
	r := strings.NewReplacer(`\`, `\\`, `%`, `\%`, `_`, `\_`)
	return r.Replace(s)
}

func (a *App) GlobalSearch(q string) ([]SearchHit, error) {
	if e := a.ready(); e != nil {
		return nil, e
	}
	q = strings.TrimSpace(q)
	out := []SearchHit{}
	if q == "" {
		return out, nil
	}
	pat := "%" + escapeLike(q) + "%"
	type src struct {
		kind, query string
		args        int // pat 占位数量
	}
	for _, s := range []src{
		{"project", `SELECT id,name,path,'' FROM projects WHERE name LIKE ? ESCAPE '\' OR path LIKE ? ESCAPE '\' ORDER BY updated_at DESC LIMIT 8`, 2},
		{"todo", `SELECT id,title,status,priority FROM todos WHERE deleted=0 AND (title LIKE ? ESCAPE '\' OR content LIKE ? ESCAPE '\') ORDER BY updated_at DESC LIMIT 8`, 2},
		{"ticket", `SELECT id,title,status,priority FROM tickets WHERE deleted=0 AND (title LIKE ? ESCAPE '\' OR description LIKE ? ESCAPE '\') ORDER BY updated_at DESC LIMIT 8`, 2},
		{"conversation", `SELECT id,title,provider,'' FROM ai_conversations WHERE title LIKE ? ESCAPE '\' ORDER BY updated_at DESC LIMIT 8`, 1},
	} {
		args := make([]any, s.args)
		for i := range args {
			args[i] = pat
		}
		rows, e := a.store.db.Query(s.query, args...)
		if e != nil {
			return nil, e
		}
		for rows.Next() {
			h := SearchHit{Kind: s.kind}
			if e := rows.Scan(&h.ID, &h.Title, &h.Sub, &h.Extra); e != nil {
				rows.Close()
				return nil, e
			}
			out = append(out, h)
		}
		rows.Close()
		if e := rows.Err(); e != nil {
			return nil, e
		}
	}
	return out, nil
}