const assert = require('assert');
const crypto = require('crypto');
const fs = require('fs');
const os = require('os');
const path = require('path');
const { spawnSync } = require('child_process');

const projectRoot = path.resolve(__dirname, '..', '..');
const syncScript = path.join(projectRoot, 'frontend', 'scripts', 'sync-desktop-release.js');
const results = { passed: 0, failed: 0 };

function test(name, fn) {
  try {
    fn();
    results.passed += 1;
    console.log(`  [PASS] ${name}`);
  } catch (error) {
    results.failed += 1;
    console.error(`  [FAIL] ${name}: ${error.message}`);
  }
}

console.log('\n========== 桌面安装包发布同步测试 ==========\n');

const tempRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'wanwanyun-release-sync-'));
try {
  const destinationDirectory = path.join(tempRoot, 'downloads');
  const asset = 'wanwan-cloud-desktop_v9.9.9_x64-setup.exe';
  const assetContent = Buffer.from('verified desktop release fixture');
  const sha256 = crypto.createHash('sha256').update(assetContent).digest('hex');
  const metadataPath = path.join(tempRoot, 'desktop-release.json');
  fs.mkdirSync(destinationDirectory, { recursive: true });
  fs.writeFileSync(path.join(destinationDirectory, asset), assetContent);
  fs.writeFileSync(metadataPath, JSON.stringify({
    version: '9.9.9',
    tag: 'v9.9.9',
    asset,
    downloadUrl: `https://example.test/releases/download/v9.9.9/${asset}`,
    publicPath: `/downloads/${asset}`,
    sha256,
    size: assetContent.length
  }));

  const runCheck = () => spawnSync(process.execPath, [
    syncScript,
    '--metadata', metadataPath,
    '--destination-dir', destinationDirectory,
    '--check-only'
  ], { encoding: 'utf8' });

  test('已缓存安装包通过大小与 SHA256 校验', () => {
    const result = runCheck();
    assert.strictEqual(result.status, 0, result.stderr);
    assert.match(result.stdout, /Desktop release verified/);
  });

  test('损坏的安装包会让只读校验失败', () => {
    fs.appendFileSync(path.join(destinationDirectory, asset), 'corrupt');
    const result = runCheck();
    assert.notStrictEqual(result.status, 0);
    assert.match(result.stderr, /Desktop release check failed/);
  });
} finally {
  fs.rmSync(tempRoot, { recursive: true, force: true });
}

console.log('\n========================================');
console.log('测试总结');
console.log('========================================');
console.log(`通过: ${results.passed}`);
console.log(`失败: ${results.failed}`);

process.exit(results.failed > 0 ? 1 : 0);