refactor: add electric order drilldown

src/server/routes/energy/index.ts

@@ -7,6 +7,7 @@ import {
   parseHydrogenCustomerKind,
   parseHydrogenCustomerName,
   parseHydrogenStationId,
+  parseEnergyDate,
   type HydrogenCustomerKind,
 } from './query.js';
 import type { AuthUser } from '../../auth/types.js';
@@ -592,6 +593,81 @@ app.get('/electric/overview', async (c) => {
   return c.json(data);
 });
 
+// =========================================================
+// 电能 订单下钻：指定自然日 + 车辆归属，最多返回 500 条明细
+// =========================================================
+app.get('/electric/orders', async (c) => {
+  const dateParam = c.req.query('date');
+  const date = parseEnergyDate(dateParam);
+  if (date === null) return c.json({ error: 'date 必须是有效的 YYYY-MM-DD 日期' }, 400);
+
+  const customerParam = c.req.query('customer');
+  if (customerParam !== undefined && customerParam !== 'lingniu' && customerParam !== 'external') {
+    return c.json({ error: 'customer 必须是 lingniu 或 external' }, 400);
+  }
+  const customer = customerParam === 'external' ? 'external' : 'lingniu';
+  const vehicleKind = customer === 'lingniu' ? 'internal' : 'external';
+
+  const data = await cached(`electric/orders?date=${date}&customer=${customer}`, async () => {
+    const params = [date, date, vehicleKind];
+    const [[summaryRows], [detailRows]] = await Promise.all([
+      pool.query<RowDataPacket[]>(
+        `SELECT COUNT(*) AS recordCount,
+                SUM(kwh) AS totalKwh,
+                SUM(fee) AS totalFee
+         FROM bi_ele_charge_record
+         WHERE start_time >= ? AND start_time < DATE_ADD(?, INTERVAL 1 DAY)
+           AND vehicle_kind = ?`,
+        params,
+      ),
+      pool.query<RowDataPacket[]>(
+        `SELECT id,
+                order_no AS orderNo,
+                DATE_FORMAT(start_time, '%Y-%m-%d %H:%i:%s') AS startTime,
+                COALESCE(NULLIF(TRIM(station_name), ''), '未指定站点') AS stationName,
+                COALESCE(NULLIF(TRIM(matched_plate), ''), NULLIF(TRIM(judged_plate), ''), NULLIF(TRIM(plate), ''), '未识别车辆') AS plate,
+                vehicle_kind AS vehicleKind,
+                COALESCE(NULLIF(TRIM(order_status), ''), '未指定状态') AS orderStatus,
+                kwh,
+                e_fee AS electricityFee,
+                service_fee AS serviceFee,
+                fee AS totalFee
+         FROM bi_ele_charge_record
+         WHERE start_time >= ? AND start_time < DATE_ADD(?, INTERVAL 1 DAY)
+           AND vehicle_kind = ?
+         ORDER BY start_time DESC, id DESC
+         LIMIT 501`,
+        params,
+      ),
+    ]);
+    const summary = summaryRows[0] ?? {};
+    const truncated = detailRows.length > 500;
+    return {
+      date,
+      vehicleScope: customer,
+      recordCount: Number(summary.recordCount) || 0,
+      totalKwh: Math.round((Number(summary.totalKwh) || 0) * 100) / 100,
+      totalFee: Math.round((Number(summary.totalFee) || 0) * 100) / 100,
+      truncated,
+      items: detailRows.slice(0, 500).map(row => ({
+        id: Number(row.id),
+        orderNo: String(row.orderNo),
+        startTime: String(row.startTime),
+        stationName: String(row.stationName),
+        plate: String(row.plate),
+        vehicleKind: row.vehicleKind as 'internal' | 'external' | 'unknown',
+        orderStatus: String(row.orderStatus),
+        kwh: Math.round((Number(row.kwh) || 0) * 100) / 100,
+        electricityFee: Math.round((Number(row.electricityFee) || 0) * 100) / 100,
+        serviceFee: Math.round((Number(row.serviceFee) || 0) * 100) / 100,
+        totalFee: Math.round((Number(row.totalFee) || 0) * 100) / 100,
+      })),
+    };
+  });
+
+  return c.json(data);
+});
+
 // =========================================================
 // 电能 每日：月份分组 + 日级行  —— 数据源：bi_ele_charge_record
 // 支持 range 参数（thisWeek / thisMonth / last15）