import { query } from '../../../utils/db'

/**
 * 주간보고 연계용 유지보수 업무 조회
 * 해당 주차에 완료된 유지보수 업무 목록
 * GET /api/maintenance/report/available
 */
export default defineEventHandler(async (event) => {
  const params = getQuery(event)
  const projectId = params.projectId ? Number(params.projectId) : null
  const weekStartDate = params.weekStartDate as string
  const weekEndDate = params.weekEndDate as string
  
  if (!projectId) {
    throw createError({ statusCode: 400, message: '프로젝트 ID가 필요합니다.' })
  }
  
  // 해당 주차에 완료된 유지보수 업무 (아직 주간보고에 연결 안 된 것)
  const sql = `
    SELECT 
      m.task_id,
      m.request_date,
      m.request_title,
      m.request_content,
      m.requester_name,
      m.task_type,
      m.priority,
      m.status,
      m.resolution_content,
      m.dev_completed_at,
      m.ops_completed_at,
      m.client_confirmed_at,
      m.weekly_report_id
    FROM wr_maintenance_task m
    WHERE m.project_id = $1
      AND m.status = 'COMPLETED'
      AND m.weekly_report_id IS NULL
      AND (
        (m.dev_completed_at >= $2 AND m.dev_completed_at <= $3)
        OR (m.ops_completed_at >= $2 AND m.ops_completed_at <= $3)
        OR (m.client_confirmed_at >= $2 AND m.client_confirmed_at <= $3)
      )
    ORDER BY m.dev_completed_at DESC NULLS LAST, m.task_id DESC
  `
  
  const tasks = await query(sql, [projectId, weekStartDate, weekEndDate + ' 23:59:59'])
  
  return {
    tasks: tasks.map((t: any) => ({
      taskId: t.task_id,
      requestDate: t.request_date,
      requestTitle: t.request_title,
      requestContent: t.request_content,
      requesterName: t.requester_name,
      taskType: t.task_type,
      priority: t.priority,
      status: t.status,
      resolutionContent: t.resolution_content,
      devCompletedAt: t.dev_completed_at,
      opsCompletedAt: t.ops_completed_at,
      clientConfirmedAt: t.client_confirmed_at
    }))
  }
})