'use strict';

// 校区地图：学校列表（JSON 种子 + 运行时），附带运营数据关联统计。
// 本期只有只读接口；新建/编辑/启停在下一增量实现。

const { sendJson } = require('../util.js');
const { loadSchools } = require('../../schools-store.js');
const { createOpsStore } = require('../../ops-store.js');

function namesOf(school) {
  return new Set([school.name, ...(school.aliases || [])].map((n) => String(n).trim()).filter(Boolean));
}

function register(app, ctx) {
  const opsStore = createOpsStore(ctx.config);

  app.get('/api/schools', async ({ res }) => {
    const schools = loadSchools();

    // 关联运营数据：按学校名（含别名）匹配 ops_shop.school 与 ops_row.school
    let shops = [];
    let rows = [];
    let platformRows = [];
    let opsAvailable = false;
    try {
      const summary = await opsStore.summary();
      shops = summary.shops || [];
      rows = await opsStore.queryRows({});
      platformRows = await opsStore.queryPlatformRows({});
      opsAvailable = true;
    } catch { /* ops 库不可用：只影响关联字段 */ }

    const payload = schools.map((school) => {
      const names = namesOf(school);
      // 门店口径：人工表的 shop_key 与平台明细的 shopId 取并集
      const shopKeys = new Set();
      for (const shop of shops) {
        if (names.has(String(shop.school || ''))) shopKeys.add(String(shop.key || shop.shopId || ''));
      }
      for (const row of platformRows) {
        if (names.has(String(row.school || ''))) shopKeys.add(String(row.shopId || ''));
      }
      shopKeys.delete('');
      const shopCount = shopKeys.size;
      let lastDate = '';
      for (const row of rows) {
        if (!names.has(String(row.school || ''))) continue;
        if (!lastDate || row.date > lastDate) lastDate = row.date;
      }
      for (const row of platformRows) {
        if (!names.has(String(row.school || ''))) continue;
        if (!lastDate || row.date > lastDate) lastDate = row.date;
      }
      return {
        ...school,
        ops: opsAvailable ? { shopCount, lastDate: lastDate || null } : null,
      };
    });

    sendJson(res, 200, {
      schools: payload,
      opsAvailable,
      enabledCount: payload.filter((s) => s.enabled && s.lng != null).length,
    });
  });
}

module.exports = { register };