#!/usr/bin/env dart
/// E2E 手动测试脚本：对真实后端的完整登录纵切流程（独立脚本，无 Flutter 运行时）。
///
/// 前置条件：patbond-api 目录执行 `docker compose up -d`
/// 运行方式：dart run test_e2e_manual.dart
///
/// 本脚本直接通过 HTTP 客户端验证契约实现，不依赖 Flutter widget。

import 'dart:convert';
import 'dart:io';
import 'dart:math';

const baseUrl = 'http://127.0.0.1:8081';
const userServiceUrl = 'http://127.0.0.1:8082';

void main() async {
  final timestamp = DateTime.now().millisecondsSinceEpoch;
  final username = 'e2e_test_$timestamp';
  // 随机 11 位手机号（中国手机号格式：+86 + 11 位，这里简化为 13 开头）
  final phone = '+8613${Random().nextInt(900000000) + 100000000}';
  const password = 'Test@123456';

  print('=== Patbond E2E 烟囱测试开始 ===');
  print('用户名: $username');
  print('手机号: $phone');
  print('');

  final client = HttpClient();
  String? accessToken;
  String? refreshToken;
  String? userId;

  try {
    // 1. 注册
    print('[1/7] POST /api/v1/auth/register');
    final registerReq = await client.postUrl(Uri.parse('$baseUrl/api/v1/auth/register'));
    registerReq.headers.contentType = ContentType.json;
    registerReq.write(jsonEncode({
      'username': username,
      'phone': phone,
      'password': password,
    }));
    final registerResp = await registerReq.close();
    final registerBody = await utf8.decodeStream(registerResp);
    print('  Status: ${registerResp.statusCode}');

    if (registerResp.statusCode != 200) {
      print('  ✗ 注册失败');
      print('  响应: $registerBody');
      exit(1);
    }

    final registerJson = jsonDecode(registerBody) as Map<String, dynamic>;
    print('  code: ${registerJson['code']}');
    if (registerJson['code'] != 0) {
      print('  ✗ 注册业务错误: ${registerJson['message']}');
      exit(1);
    }

    final registerData = registerJson['data'] as Map<String, dynamic>;
    accessToken = registerData['accessToken'] as String;
    refreshToken = registerData['refreshToken'] as String;
    userId = registerData['userId'] as String;

    print('  ✓ 注册成功');
    print('    userId: $userId');
    print('    accessToken: ${accessToken.substring(0, 20)}...<REDACTED>');
    print('    refreshToken: ${refreshToken.substring(0, 20)}...<REDACTED>');
    print('    accessTokenExpiresAt: ${registerData['accessTokenExpiresAt']}');
    print('    refreshTokenExpiresAt: ${registerData['refreshTokenExpiresAt']}');
    print('');

    // 2. 获取当前用户 (me)
    print('[2/7] GET /api/v1/me');
    final meReq = await client.getUrl(Uri.parse('$userServiceUrl/api/v1/me'));
    meReq.headers.set('Authorization', 'Bearer $accessToken');
    final meResp = await meReq.close();
    final meBody = await utf8.decodeStream(meResp);
    print('  Status: ${meResp.statusCode}');

    if (meResp.statusCode != 200) {
      print('  ✗ 获取用户资料失败');
      print('  响应: $meBody');
      exit(1);
    }

    final meJson = jsonDecode(meBody) as Map<String, dynamic>;
    if (meJson['code'] != 0) {
      print('  ✗ 获取用户资料业务错误: ${meJson['message']}');
      exit(1);
    }

    final meData = meJson['data'] as Map<String, dynamic>;
    print('  ✓ 获取用户资料成功');
    print('    userId: ${meData['userId']}');
    print('    username: ${meData['username']}');
    print('    phone: ${meData['phone']}');
    print('    createdAt: ${meData['createdAt']}');
    print('');

    if (meData['username'] != username) {
      print('  ✗ 用户名不匹配：期望 $username，实际 ${meData['username']}');
      exit(1);
    }

    // 3. 刷新 token
    print('[3/7] POST /api/v1/auth/refresh');
    final oldRefreshToken = refreshToken;
    final refreshReq = await client.postUrl(Uri.parse('$baseUrl/api/v1/auth/refresh'));
    refreshReq.headers.contentType = ContentType.json;
    refreshReq.write(jsonEncode({'refreshToken': refreshToken}));
    final refreshResp = await refreshReq.close();
    final refreshBody = await utf8.decodeStream(refreshResp);
    print('  Status: ${refreshResp.statusCode}');

    if (refreshResp.statusCode != 200) {
      print('  ✗ 刷新失败');
      print('  响应: $refreshBody');
      exit(1);
    }

    final refreshJson = jsonDecode(refreshBody) as Map<String, dynamic>;
    if (refreshJson['code'] != 0) {
      print('  ✗ 刷新业务错误: ${refreshJson['message']}');
      exit(1);
    }

    final refreshData = refreshJson['data'] as Map<String, dynamic>;
    final newAccessToken = refreshData['accessToken'] as String;
    final newRefreshToken = refreshData['refreshToken'] as String;

    print('  ✓ Token 刷新成功');
    print('    新 accessToken: ${newAccessToken.substring(0, 20)}...<REDACTED>');
    print('    新 refreshToken: ${newRefreshToken.substring(0, 20)}...<REDACTED>');

    if (newAccessToken == accessToken) {
      print('  ✗ access token 未轮换');
      exit(1);
    }
    if (newRefreshToken == oldRefreshToken) {
      print('  ✗ refresh token 未轮换');
      exit(1);
    }

    accessToken = newAccessToken;
    refreshToken = newRefreshToken;
    print('');

    // 4. 验证旧 refresh token 不可用（轮换生效）
    print('[4/7] POST /api/v1/auth/refresh（用已轮换的旧 token，应 401）');
    final oldRefreshReq = await client.postUrl(Uri.parse('$baseUrl/api/v1/auth/refresh'));
    oldRefreshReq.headers.contentType = ContentType.json;
    oldRefreshReq.write(jsonEncode({'refreshToken': oldRefreshToken}));
    final oldRefreshResp = await oldRefreshReq.close();
    final oldRefreshBody = await utf8.decodeStream(oldRefreshResp);
    print('  Status: ${oldRefreshResp.statusCode}');

    if (oldRefreshResp.statusCode == 401) {
      final oldRefreshJson = jsonDecode(oldRefreshBody) as Map<String, dynamic>;
      print('  ✓ 旧 refresh token 被拒绝（轮换生效）');
      print('    code: ${oldRefreshJson['code']}');
      print('    message: ${oldRefreshJson['message']}');
    } else {
      print('  ✗ 旧 refresh token 仍可用（轮换未生效）');
      exit(1);
    }
    print('');

    // 5. 退出登录
    print('[5/7] POST /api/v1/auth/logout');
    final logoutReq = await client.postUrl(Uri.parse('$baseUrl/api/v1/auth/logout'));
    logoutReq.headers.contentType = ContentType.json;
    logoutReq.headers.set('Authorization', 'Bearer $accessToken');
    logoutReq.write(jsonEncode({'refreshToken': refreshToken}));
    final logoutResp = await logoutReq.close();
    final logoutBody = await utf8.decodeStream(logoutResp);
    print('  Status: ${logoutResp.statusCode}');

    if (logoutResp.statusCode != 200) {
      print('  ✗ 退出失败');
      print('  响应: $logoutBody');
      exit(1);
    }

    final logoutJson = jsonDecode(logoutBody) as Map<String, dynamic>;
    if (logoutJson['code'] != 0) {
      print('  ✗ 退出业务错误: ${logoutJson['message']}');
      exit(1);
    }

    print('  ✓ 退出成功');
    print('');

    // 6. 验证退出后 refresh token 不可用
    print('[6/7] POST /api/v1/auth/refresh（退出后，应 401）');
    final postLogoutRefreshReq = await client.postUrl(Uri.parse('$baseUrl/api/v1/auth/refresh'));
    postLogoutRefreshReq.headers.contentType = ContentType.json;
    postLogoutRefreshReq.write(jsonEncode({'refreshToken': refreshToken}));
    final postLogoutRefreshResp = await postLogoutRefreshReq.close();
    final postLogoutRefreshBody = await utf8.decodeStream(postLogoutRefreshResp);
    print('  Status: ${postLogoutRefreshResp.statusCode}');

    if (postLogoutRefreshResp.statusCode == 401) {
      final postLogoutJson = jsonDecode(postLogoutRefreshBody) as Map<String, dynamic>;
      print('  ✓ 退出后 refresh token 已失效');
      print('    code: ${postLogoutJson['code']}');
      print('    message: ${postLogoutJson['message']}');
    } else {
      print('  ✗ 退出后 refresh token 仍可用');
      exit(1);
    }
    print('');

    // 7. 登录失败锁定测试
    // 锁定语义（后端实现 + 契约一致）：窗口内累计 5 次失败即记录锁定；
    // 第 5 次失败本身仍返回 40100，其后的任何尝试（含正确密码）返回 423/42300。
    print('[7/7] POST /api/v1/auth/login（5 次错误密码 → 第 6 次触发 423/42300）');
    for (int i = 1; i <= 5; i++) {
      print('  错误密码尝试 $i/5...');
      final badLoginReq = await client.postUrl(Uri.parse('$baseUrl/api/v1/auth/login'));
      badLoginReq.headers.contentType = ContentType.json;
      badLoginReq.write(jsonEncode({
        'username': username,
        'password': 'WrongPassword$i',
      }));
      final badLoginResp = await badLoginReq.close();
      final badLoginBody = await utf8.decodeStream(badLoginResp);
      final badLoginJson = jsonDecode(badLoginBody) as Map<String, dynamic>;
      print('    → HTTP ${badLoginResp.statusCode} / code ${badLoginJson['code']}: '
          '${badLoginJson['message']}');
      if (badLoginResp.statusCode == 423) {
        // 之前的失败计数已触发锁定（本脚本重复运行时会出现），也算验证通过
        print('  ✓ 账号已处于锁定状态（423/42300）');
        break;
      }
      await Future.delayed(const Duration(milliseconds: 300));
    }

    // 第 6 次：用正确密码验证「锁定期间即使密码正确也返回 423/42300」
    print('  第 6 次尝试（正确密码，应因锁定被拒绝）...');
    final lockedLoginReq = await client.postUrl(Uri.parse('$baseUrl/api/v1/auth/login'));
    lockedLoginReq.headers.contentType = ContentType.json;
    lockedLoginReq.write(jsonEncode({
      'username': username,
      'password': password,
    }));
    final lockedLoginResp = await lockedLoginReq.close();
    final lockedLoginBody = await utf8.decodeStream(lockedLoginResp);
    print('  Status: ${lockedLoginResp.statusCode}');

    if (lockedLoginResp.statusCode == 423) {
      final lockedJson = jsonDecode(lockedLoginBody) as Map<String, dynamic>;
      if (lockedJson['code'] == 42300) {
        print('  ✓ 锁定生效：正确密码也被拒绝（423/42300）');
        print('    message: ${lockedJson['message']}');
      } else {
        print('  ✗ 状态码正确但业务码错误: ${lockedJson['code']}');
        exit(1);
      }
    } else {
      print('  ✗ 锁定未生效，HTTP ${lockedLoginResp.statusCode}');
      print('  响应: $lockedLoginBody');
      exit(1);
    }
    print('');

    print('=== E2E 烟囱测试全部通过 ✓ ===');
  } catch (e, stack) {
    print('✗ 测试异常: $e');
    print(stack);
    exit(1);
  } finally {
    client.close();
  }
}