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

/**
 * 第二十一批回归闸门：订单金额与优惠券服务端权威化
 */
describe('第二十一批订单金额完整性闸门', () => {
  const rootDir = path.resolve(__dirname, '../../');
  const repoCode = fs.readFileSync(path.join(rootDir, 'server/src/db/repository.ts'), 'utf-8');

  const createOrderBlock = () => {
    const start = repoCode.indexOf('async createOrder(');
    expect(start).toBeGreaterThan(-1);
    return repoCode.slice(start, start + 4200);
  };

  it('服务单价必须按服务端大神档案校验', () => {
    const block = createOrderBlock();
    expect(block).toContain('resolveCompanionRow(expertId)');
    expect(block).toContain('compRate');
    expect(block).toContain('hourlyRate = compRate');
  });

  it('订单金额由服务端计算，不再直接信任客户端 amount', () => {
    const block = createOrderBlock();
    expect(block).toContain('const amount = Number(Math.max(baseAmount - couponDiscount, 0.01).toFixed(2))');
    expect(block).not.toContain('const amount = Number(data.amount) || hourlyRate * durationHours;');
  });

  it('优惠券折扣必须经服务端有效券校验', () => {
    expect(repoCode).toContain('async resolveCouponDiscount(');
    const block = createOrderBlock();
    expect(block).toContain('resolveCouponDiscount(rawDiscount, track, baseAmount)');
  });
});