import 'package:dio/dio.dart';
import 'package:flutter/foundation.dart';
import '../model/response/kr_site_config.dart';
import '../common/app_config.dart';
import '../utils/kr_log_util.dart';

/// 网站配置服务
class KRSiteConfigService extends ChangeNotifier {
  static final KRSiteConfigService _instance = KRSiteConfigService._internal();
  factory KRSiteConfigService() => _instance;
  KRSiteConfigService._internal() {
    // 配置 Dio 默认超时设置
    _dio.options.connectTimeout = const Duration(seconds: 10);
    _dio.options.sendTimeout = const Duration(seconds: 10);
    _dio.options.receiveTimeout = const Duration(seconds: 10);
  }

  KRSiteConfig? _siteConfig;
  bool _isInitialized = false;
  final Dio _dio = Dio();

  /// 获取站点配置
  KRSiteConfig? get siteConfig => _siteConfig;

  /// 是否已初始化
  bool get isInitialized => _isInitialized;

  /// 初始化站点配置
  Future<bool> initialize() async {
    try {
      print('🔧 KRSiteConfigService.initialize() 开始执行');
      KRLogUtil.kr_i('🔧 开始初始化网站配置', tag: 'KRSiteConfigService');

      // Debug 模式下使用固定地址
      final baseUrl = AppConfig().baseUrl;
      print('📍 baseUrl = $baseUrl');
      final url = '$baseUrl/v1/common/site/config';
      print('📍 完整URL = $url');

      KRLogUtil.kr_i('📤 请求网站配置 - $url', tag: 'KRSiteConfigService');
      print('📤 准备发送 GET 请求到: $url');
      print('⏱️ 超时配置: connectTimeout=10s, sendTimeout=10s, receiveTimeout=10s');

      print('⏳ 开始发送请求...');
      final startTime = DateTime.now();
      final response = await _dio.get(url);
      final endTime = DateTime.now();
      final duration = endTime.difference(startTime).inMilliseconds;
      print('⏱️ 请求耗时: ${duration}ms');

      print('✅ 请求完成，状态码: ${response.statusCode}');
      KRLogUtil.kr_i('📥 响应状态码 - ${response.statusCode}', tag: 'KRSiteConfigService');

      if (response.statusCode == 200) {
        final responseData = response.data;
        print('📥 响应数据类型: ${responseData.runtimeType}');
        print('📥 响应数据: $responseData');
        KRLogUtil.kr_i('📥 响应数据 - $responseData', tag: 'KRSiteConfigService');

        if (responseData['code'] == 200) {
          _siteConfig = KRSiteConfig.fromJson(responseData['data']);
          _isInitialized = true;

          // 打印配置信息
          _printConfigInfo();

          // 通知监听者配置已更新
          notifyListeners();

          return true;
        } else {
          KRLogUtil.kr_e('❌ API返回错误 - ${responseData['msg']}', tag: 'KRSiteConfigService');
          return false;
        }
      } else {
        KRLogUtil.kr_e('❌ HTTP错误 - ${response.statusCode}', tag: 'KRSiteConfigService');
        return false;
      }
    } on DioException catch (e, stackTrace) {
      print('❌ Dio请求异常: ${e.type}');
      print('❌ 错误信息: ${e.message}');
      print('❌ 请求URL: ${e.requestOptions.uri}');
      print('❌ 连接超时: ${e.requestOptions.connectTimeout}');
      print('❌ 发送超时: ${e.requestOptions.sendTimeout}');
      print('❌ 接收超时: ${e.requestOptions.receiveTimeout}');
      if (e.response != null) {
        print('❌ 响应状态码: ${e.response?.statusCode}');
        print('❌ 响应数据: ${e.response?.data}');
      }
      print('📚 堆栈跟踪: $stackTrace');

      KRLogUtil.kr_e('❌ Dio异常 - ${e.type}: ${e.message}', tag: 'KRSiteConfigService');
      KRLogUtil.kr_e('📚 堆栈: $stackTrace', tag: 'KRSiteConfigService');
      return false;
    } catch (e, stackTrace) {
      print('❌ 未知异常: $e');
      print('📚 堆栈跟踪: $stackTrace');
      KRLogUtil.kr_e('❌ 初始化失败 - $e', tag: 'KRSiteConfigService');
      KRLogUtil.kr_e('📚 堆栈: $stackTrace', tag: 'KRSiteConfigService');
      return false;
    }
  }

  /// 打印配置信息
  void _printConfigInfo() {
    if (_siteConfig == null) return;

    KRLogUtil.kr_i('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('📊 网站配置信息:', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━', tag: 'KRSiteConfigService');

    // 站点信息
    KRLogUtil.kr_i('🏠 站点名称: ${_siteConfig!.site.siteName}', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('🏠 站点描述: ${_siteConfig!.site.siteDesc}', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('🏠 站点域名: ${_siteConfig!.site.host}', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('💬 Crisp ID: ${_siteConfig!.site.crispId}', tag: 'KRSiteConfigService');

    // 注册相关
    KRLogUtil.kr_i('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('📝 注册配置:', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('  ✓ 开放注册: ${isRegisterEnabled() ? "是" : "否"}', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('  ✓ 手机号注册: ${isMobileRegisterEnabled() ? "是" : "否"}', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('  ✓ 邮箱注册: ${isEmailRegisterEnabled() ? "是" : "否"}', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('  ✓ 设备登录: ${isDeviceLoginEnabled() ? "是" : "否"}', tag: 'KRSiteConfigService');

    // 验证相关
    KRLogUtil.kr_i('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('🔐 验证配置:', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('  ✓ 邮箱验证: ${isEmailVerificationEnabled() ? "是" : "否"}', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('  ✓ 手机验证: ${isMobileVerificationEnabled() ? "是" : "否"}', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('  ✓ 登录验证: ${isLoginVerificationEnabled() ? "是" : "否"}', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('  ✓ 注册验证: ${isRegisterVerificationEnabled() ? "是" : "否"}', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('  ✓ 重置密码验证: ${isResetPasswordVerificationEnabled() ? "是" : "否"}', tag: 'KRSiteConfigService');

    // 邀请相关
    KRLogUtil.kr_i('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('🎁 邀请配置:', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('  ✓ 强制邀请码: ${isForcedInvite() ? "是" : "否"}', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('  ✓ 推荐比例: ${_siteConfig!.invite.referralPercentage}%', tag: 'KRSiteConfigService');

    // 货币相关
    KRLogUtil.kr_i('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('💰 货币配置:', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('  ✓ 货币单位: ${_siteConfig!.currency.currencyUnit}', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('  ✓ 货币符号: ${_siteConfig!.currency.currencySymbol}', tag: 'KRSiteConfigService');

    // OAuth 方法
    if (_siteConfig!.oauthMethods.isNotEmpty) {
      KRLogUtil.kr_i('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━', tag: 'KRSiteConfigService');
      KRLogUtil.kr_i('🔑 OAuth 方法: ${_siteConfig!.oauthMethods.join(", ")}', tag: 'KRSiteConfigService');
    }

    KRLogUtil.kr_i('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('✅ 网站配置初始化成功', tag: 'KRSiteConfigService');
    KRLogUtil.kr_i('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━', tag: 'KRSiteConfigService');
  }

  /// 是否开启手机号注册
  bool isMobileRegisterEnabled() {
    return _siteConfig?.auth.mobile.enable ?? false;
  }

  /// 是否开启邮箱注册
  bool isEmailRegisterEnabled() {
    return _siteConfig?.auth.email.enable ?? false;
  }

  /// 是否开放注册（未停止注册）
  bool isRegisterEnabled() {
    return !(_siteConfig?.auth.register.stopRegister ?? true);
  }

  /// 是否开启邮箱验证
  bool isEmailVerificationEnabled() {
    return _siteConfig?.auth.email.enableVerify ?? false;
  }

  /// 是否开启手机验证
  bool isMobileVerificationEnabled() {
    return _siteConfig?.auth.mobile.enable ?? false;
  }

  /// 是否开启登录验证
  bool isLoginVerificationEnabled() {
    return _siteConfig?.verify.enableLoginVerify ?? false;
  }

  /// 是否开启注册验证
  bool isRegisterVerificationEnabled() {
    return _siteConfig?.verify.enableRegisterVerify ?? false;
  }

  /// 是否开启重置密码验证
  bool isResetPasswordVerificationEnabled() {
    return _siteConfig?.verify.enableResetPasswordVerify ?? false;
  }

  /// 是否强制邀请码
  bool isForcedInvite() {
    return _siteConfig?.invite.forcedInvite ?? false;
  }

  /// 获取验证码间隔时间（秒）
  int getVerifyCodeInterval() {
    return _siteConfig?.verifyCode.verifyCodeInterval ?? 60;
  }

  /// 获取OAuth方法列表
  List<String> getOAuthMethods() {
    return _siteConfig?.oauthMethods ?? [];
  }

  /// 检查是否支持设备模式（匿名游客模式）
  bool isDeviceModeSupported() {
    final oauthMethods = getOAuthMethods();
    return oauthMethods.contains('device');
  }

  /// 检查是否启用设备登录
  bool isDeviceLoginEnabled() {
    return _siteConfig?.auth.device.enable ?? false;
  }

  /// 检查是否需要设备安全加密
  bool isDeviceSecurityEnabled() {
    return _siteConfig?.auth.device.enableSecurity ?? false;
  }

  /// 检查是否显示广告
  bool isDeviceShowAds() {
    return _siteConfig?.auth.device.showAds ?? false;
  }

  /// 检查是否只允许真实设备
  bool isOnlyRealDevice() {
    return _siteConfig?.auth.device.onlyRealDevice ?? false;
  }

  /// 获取站点信息
  KRSiteInfo? getSiteInfo() {
    return _siteConfig?.site;
  }

  /// 获取货币配置
  KRCurrencyConfig? getCurrencyConfig() {
    return _siteConfig?.currency;
  }

  /// 获取订阅配置
  KRSubscribeConfig? getSubscribeConfig() {
    return _siteConfig?.subscribe;
  }

  /// 检查手机号是否在白名单中
  bool isMobileInWhitelist(String mobile) {
    if (!(_siteConfig?.auth.mobile.enableWhitelist ?? false)) {
      return true; // 如果未开启白名单，则允许所有手机号
    }

    final whitelist = _siteConfig?.auth.mobile.whitelist ?? [];
    return whitelist.contains(mobile);
  }

  /// 检查邮箱域名是否被允许
  bool isEmailDomainAllowed(String email) {
    if (!(_siteConfig?.auth.email.enableDomainSuffix ?? false)) {
      return true; // 如果未开启域名限制，则允许所有域名
    }

    final domainSuffixList = _siteConfig?.auth.email.domainSuffixList ?? '';
    if (domainSuffixList.isEmpty) {
      return true;
    }

    final allowedDomains = domainSuffixList.split(',').map((d) => d.trim()).toList();
    final emailDomain = email.split('@').last.toLowerCase();

    return allowedDomains.any((domain) => emailDomain.endsWith(domain.toLowerCase()));
  }

  /// 获取Crisp客服系统ID
  String getCrispId() {
    return _siteConfig?.site.crispId ?? '0';
  }

  /// 重置配置
  void reset() {
    _siteConfig = null;
    _isInitialized = false;
    notifyListeners();
  }
}