'use strict';

/**
 * 仓储中心物流转运异常 —— HTTP 路由（2026-10-21 新增）
 * ────────────────────────────────────────────────────────────────────────────
 * GET /api/warehouse-logistics-exception/list
 *   query:
 *     date   核验日 'YYYY-MM-DD'（默认：已过 09:00 用今天，否则用昨天）
 *     limit  明细条数上限（默认 500，最大 2000）
 *     force  1 = 绕过 5 分钟结果缓存
 *
 * 挂载见 src/index.js：`/api/warehouse-logistics-exception` + authMiddleware
 */

const express = require('express');
const { getLogisticsExceptions } = require('../services/warehouseLogisticsExceptionService');
const {
  CENTERS, EXCEPTION_TYPES, LOOKBACK_DAYS, VERIFY_HOUR,
} = require('../services/warehouseLogisticsExceptionRegistry');

const router = express.Router();

function sendError(res, error, fallback) {
  const status = Number(error?.statusCode) || 500;
  console.error('[WarehouseLogisticsException]', {
    message: error?.message || fallback,
    code: error?.code || null,
    status,
  });
  res.status(status).json({ success: false, error: error.message || fallback });
}

// 转运异常总览：12 个发货仓异常单量 + 明细
router.get('/list', async (req, res) => {
  try {
    const data = await getLogisticsExceptions(req.query || {});
    res.json({ success: true, data });
  } catch (error) {
    sendError(res, error, '加载物流转运异常失败');
  }
});

// 口径元数据（不查库，秒回）：页面文案与图例用它，避免前后端各写一套
router.get('/meta', (_req, res) => {
  res.json({
    success: true,
    data: {
      verifyHour: VERIFY_HOUR,
      lookbackDays: LOOKBACK_DAYS,
      centers: CENTERS.map((c) => ({ key: c.key, name: c.name })),
      exceptionTypes: EXCEPTION_TYPES,
    },
  });
});

module.exports = router;