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

/**
 * 第二十批回归闸门：充值赠金必须服务端按阶梯权威计算
 */
describe('第二十批充值赠金权威性闸门', () => {
  const rootDir = path.resolve(__dirname, '../../');
  const indexCode = fs.readFileSync(path.join(rootDir, 'server/src/index.ts'), 'utf-8');
  const repoCode = fs.readFileSync(path.join(rootDir, 'server/src/db/repository.ts'), 'utf-8');

  it('仓储层提供服务端赠金计算', () => {
    expect(repoCode).toContain('async computeRechargeBonusCents(');
    const start = repoCode.indexOf('async computeRechargeBonusCents(');
    const block = repoCode.slice(start, start + 700);
    expect(block).toContain('FROM recharge_tiers');
    expect(block).toContain('status = 1');
    expect(block).toContain('ORDER BY amount DESC');
  });

  it('预支付不再信任客户端赠金', () => {
    expect(indexCode).not.toContain('bonusCents: Math.round(Number(bonusAmount || 0) * 100)');
    const start = indexCode.indexOf("app.post('/api/pay/wechat/prepay'");
    const block = indexCode.slice(start, start + 5200);
    expect(block).toContain('computeRechargeBonusCents(amountCents)');
  });

  it('沙箱直接充值也不再信任客户端赠金', () => {
    expect(indexCode).not.toContain('rechargeUserBalance(userId, Number(amount), Number(bonusAmount || 0))');
    const start = indexCode.indexOf("app.post('/api/users/:id/recharge'");
    const block = indexCode.slice(start, start + 2400);
    expect(block).toContain('computeRechargeBonusCents(Math.round(amountYuan * 100))');
  });
});