// 已读取AGENTS.md
import * as fs from 'fs';
import * as path from 'path';

/**
 * 列表分页闸门：订单 / 消息通知 / 组局
 * 要求：服务端支持 page/pageSize 并返回 total/hasMore；不传 page 时保持旧数组格式兼容；
 * 小程序三页必须支持触底加载更多。
 */
describe('列表分页（订单 / 通知 / 组局）', () => {
  const root = path.resolve(__dirname, '../../');
  const read = (rel: string) => fs.readFileSync(path.join(root, rel), 'utf-8');
  const repo = read('server/src/db/repository.ts');
  const indexCode = read('server/src/index.ts');
  const api = read('pwuniapp/common/api.js');
  const orderList = read('pwuniapp/pages/order/list.vue');
  const notifications = read('pwuniapp/pages/user/notifications.vue');
  const activityList = read('pwuniapp/pages/activity/list.vue');

  it('仓储层必须使用 LIMIT/OFFSET 分页，而不是一次拉全量', () => {
    expect(repo).toContain('LIMIT ${pageSize} OFFSET ${offset}');
    expect(repo).toContain('LIMIT ${take} OFFSET ${skip}');
    expect(repo).toContain('async countOrders(');
    expect(repo).toContain('async countOrdersForUser(');
    expect(repo).toContain('async countActivities(');
    expect(repo).toContain('async getUserNotificationTotal(');
  });

  it('接口必须返回 total/hasMore，未传 page 时保持旧数组格式', () => {
    expect(indexCode).toContain("if (Number(req.query.page) > 0)");
    expect(indexCode).toContain('hasMore: (page - 1) * pageSize');
    // 旧调用（管理后台 / 工作台）不传 page 仍拿数组
    expect(indexCode).toContain('const paged = Number(req.query.page) > 0;');
    expect(indexCode).toContain('data: orders');
    expect(indexCode).toContain('data: acts');
  });

  it('小程序 API 层传递分页参数并保持旧调用兼容', () => {
    expect(api).toContain('page=${Math.floor(Number(options.page))}');
    expect(api).toContain('pageSize=${Math.floor(Number(options.pageSize) || 20)}');
    expect(api).toContain("return paged ? { list: [], total: 0, page: 1, pageSize: 20, hasMore: false } : [];");
    expect(api).toContain('if (Number(extra.page) > 0)');
  });

  it('订单 / 通知 / 组局页面必须支持触底加载更多', () => {
    expect(orderList).toContain('onReachBottom');
    expect(orderList).toContain('loadLiveOrders(false)');
    expect(notifications).toContain('@scrolltolower="loadMore"');
    expect(notifications).toContain('loadData(false)');
    expect(activityList).toContain('onReachBottom');
    expect(activityList).toContain('fetchLiveActivities(false)');
  });

  it('筛选与搜索必须下推到服务端，避免只过滤当前页造成漏数据', () => {
    expect(orderList).toContain('status: currentTab.value');
    expect(activityList).toContain('keyword: searchKeyword.value.trim()');
    expect(activityList).toContain('payType: currentTab.value');
    expect(activityList).toContain('creatorId: currentTab.value');
  });
});