import { pool } from '../../config/db.js';

const RESULT_LIMIT = 20;

// Busqueda global (menu Proyectos): proyectos, actividades (con su proyecto) y tareas (con su
// actividad y proyecto) — para armar la migaja de pan "Proyecto - Actividad - Tarea" en el cliente.
export async function searchGlobal(term, user) {
  const like = `%${term}%`;
  const fullAccess = ['superadmin', 'admin', 'it_manager'].includes(user.roleCode);
  const scope = fullAccess ? '' : ' AND EXISTS (SELECT 1 FROM project_members pm WHERE pm.project_id = p.id AND pm.user_id = ?)';
  const scopeParams = fullAccess ? [] : [user.id];

  const [projects] = await pool.query(
    `SELECT p.id, p.code, p.name FROM projects p
     WHERE p.deleted_at IS NULL AND (p.code LIKE ? OR p.name LIKE ?)${scope}
     ORDER BY name LIMIT ?`,
    [like, like, ...scopeParams, RESULT_LIMIT]
  );

  const [activities] = await pool.query(
    `SELECT a.id, a.code, a.name,
            p.id AS project_id, p.code AS project_code, p.name AS project_name
     FROM activities a
     JOIN projects p ON p.id = a.project_id
     WHERE p.deleted_at IS NULL AND a.deleted_at IS NULL AND (a.code LIKE ? OR a.name LIKE ?)${scope}
     ORDER BY a.name LIMIT ?`,
    [like, like, ...scopeParams, RESULT_LIMIT]
  );

  const [tasks] = await pool.query(
    `SELECT t.id, t.name,
            a.id AS activity_id, a.code AS activity_code, a.name AS activity_name,
            p.id AS project_id, p.code AS project_code, p.name AS project_name
     FROM tasks t
     JOIN activities a ON a.id = t.activity_id
     JOIN projects p ON p.id = a.project_id
     WHERE p.deleted_at IS NULL AND a.deleted_at IS NULL AND t.deleted_at IS NULL AND t.name LIKE ?${scope}
     ORDER BY t.name LIMIT ?`,
    [like, ...scopeParams, RESULT_LIMIT]
  );

  return { projects, activities, tasks };
}

// Busqueda dentro de un proyecto (pestaña Actividades): solo actividades y tareas de ESE
// proyecto — la migaja de pan ahi es "Actividad - Tarea" (el proyecto ya es el contexto visible).
export async function searchInProject(projectId, term) {
  const like = `%${term}%`;

  const [activities] = await pool.query(
    `SELECT id, code, name FROM activities
     WHERE project_id = ? AND deleted_at IS NULL AND (code LIKE ? OR name LIKE ?)
     ORDER BY name LIMIT ?`,
    [projectId, like, like, RESULT_LIMIT]
  );

  const [tasks] = await pool.query(
    `SELECT t.id, t.name, a.id AS activity_id, a.code AS activity_code, a.name AS activity_name
     FROM tasks t
     JOIN activities a ON a.id = t.activity_id
     WHERE a.project_id = ? AND a.deleted_at IS NULL AND t.deleted_at IS NULL AND t.name LIKE ?
     ORDER BY t.name LIMIT ?`,
    [projectId, like, RESULT_LIMIT]
  );

  return { activities, tasks };
}