import 'package:get/get.dart';
import 'package:flutter/material.dart';
import '../../../routes/app_routes.dart';
import 'dart:convert';
import 'dart:ffi';
import '../../settings/controllers/settings_controller.dart';
import 'facebookLogin.dart';
import 'googleLogin.dart';
import 'weixinLogin.dart';
import '../entity/api.dart';
import '../../../../data/models/user_Info.dart';
//import 'package:shared_preferences/shared_preferences.dart';
import 'package:get_storage/get_storage.dart';

enum LoginViewState {
  welcome, // 欢迎页面
  verification // 验证码页面
}

class LoginController extends GetxController {
  static LoginController get to => Get.find();
  final GetStorage _storage = GetStorage();
  // 状态管理
  final _viewState = LoginViewState.welcome.obs;
  final _isLoading = false.obs;
  final _countdownSeconds = 0.obs;
  final _contactValue = ''.obs;
  final _displayContact = ''.obs;
  final _verificationCode = ['', '', '', ''].obs;
  int loginType = -1;
  // Getters
  LoginViewState get viewState => _viewState.value;
  bool get isLoading => _isLoading.value;
  int get countdownSeconds => _countdownSeconds.value;
  String get contactValue => _contactValue.value;
  String get displayContact => _displayContact.value;
  List<String> get verificationCode => _verificationCode;

  // 文本控制器
  final contactController = TextEditingController();
  final verificationCodeController = TextEditingController();

  @override
  void onInit() {
    super.onInit();
    _viewState.value = LoginViewState.welcome;
  }

  @override
  void onClose() {
    contactController.dispose();
    verificationCodeController.dispose();
    super.onClose();
  }

  // 获取验证码
  void getVerificationCode() {
    if (contactController.text.isEmpty) {
      Get.snackbar(
        '提示',
        '请输入手机号码或邮箱',
        snackPosition: SnackPosition.TOP,
        backgroundColor: Colors.red.withOpacity(0.1),
        colorText: Colors.red,
      );
      return;
    }

    _contactValue.value = contactController.text;
    _formatDisplayContact();
    _startCountdown();
    _sendVerificationCode();
  }

  // 使用验证码直接登录
  void loginWithVerificationCode() {
    //测试期间暂时关闭验证码登录
    // if (contactController.text.isEmpty) {
    //   Get.snackbar(
    //     '提示',
    //     '请输入手机号码或邮箱',
    //     snackPosition: SnackPosition.TOP,
    //     backgroundColor: Colors.red.withOpacity(0.1),
    //     colorText: Colors.red,
    //   );
    //   return;
    // }

    // if (verificationCodeController.text.isEmpty) {
    //   Get.snackbar(
    //     '提示',
    //     '请输入验证码',
    //     snackPosition: SnackPosition.TOP,
    //     backgroundColor: Colors.red.withOpacity(0.1),
    //     colorText: Colors.red,
    //   );
    //   return;
    // }

    // if (verificationCodeController.text.length < 6) {
    //   Get.snackbar(
    //     '提示',
    //     '请输入完整的验证码',
    //     snackPosition: SnackPosition.TOP,
    //     backgroundColor: Colors.red.withOpacity(0.1),
    //     colorText: Colors.red,
    //   );
    //   return;
    // }

    _isLoading.value = true;

    // 模拟验证过程
    Future.delayed(const Duration(seconds: 2), () {
      _isLoading.value = false;
      // 验证成功，跳转到配对页面
      Get.offAllNamed(Routes.pairing);
    });
  }

  // 切换到验证码页面
  void showVerificationView() {
    if (contactController.text.isEmpty) {
      Get.snackbar(
        '提示',
        '请输入手机号码或邮箱',
        snackPosition: SnackPosition.TOP,
        backgroundColor: Colors.red.withOpacity(0.1),
        colorText: Colors.red,
      );
      return;
    }

    _contactValue.value = contactController.text;
    _formatDisplayContact();
    _viewState.value = LoginViewState.verification;
    _startCountdown();
    _sendVerificationCode();
  }

  // 返回欢迎页面
  void showWelcomeView() {
    _viewState.value = LoginViewState.welcome;
    _resetVerificationCode();
  }

  // 格式化显示的联系方式（隐藏部分字符）
  void _formatDisplayContact() {
    String contact = _contactValue.value;
    if (contact.contains('@')) {
      // 邮箱
      final parts = contact.split('@');
      if (parts[0].length > 3) {
        _displayContact.value = parts[0].substring(0, 3) + '****@' + parts[1];
      } else {
        _displayContact.value = contact;
      }
      loginType = 0;
    } else if (RegExp(r'^\d+$').hasMatch(contact)) {
      // 手机号
      if (contact.length > 7) {
        _displayContact.value = '+86 ' +
            contact.substring(0, 3) +
            '****' +
            contact.substring(contact.length - 4);
      } else {
        _displayContact.value = contact;
      }
      loginType = 1;
    } else {
      _displayContact.value = contact;
    }
  }

  // 开始倒计时
  void _startCountdown() {
    _countdownSeconds.value = 60;
    Future.doWhile(() async {
      await Future.delayed(const Duration(seconds: 1));
      _countdownSeconds.value--;
      return _countdownSeconds.value > 0;
    });
  }

  // 发送验证码
  Future<void> _sendVerificationCode() async {
    // 这里应该是实际发送验证码的逻辑
    // 为了演示，我们只是模拟发送
    var response = await Api.getCode({
      "addr": contactController.text,
      "vtype": 0,
    });
    if (response != null) {
      print("请求后台数据验证码params=${response}");
      //短信已发送
      //EasyLoading.showInfo('codeSend'.tr);
    }
  }

  // 重新发送验证码
  void resendVerificationCode() {
    if (_countdownSeconds.value > 0) return;
    _startCountdown();
    _sendVerificationCode();
  }

  // 更新验证码输入
  void updateVerificationCode(int index, String value) {
    if (index >= 0 && index < 4) {
      var newList = [..._verificationCode];
      newList[index] = value;
      _verificationCode.value = newList;
    }
  }

  // 重置验证码
  void _resetVerificationCode() {
    _verificationCode.value = ['', '', '', ''];
  }

  // 检查验证码是否完整
  bool isVerificationCodeComplete() {
    return !_verificationCode.contains('');
  }

  // 登录
  Future<void> login() async {
    // 暂时关闭验证码验证
    // if (!isVerificationCodeComplete()) {
    //   Get.snackbar(
    //     '提示',
    //     '请输入完整的验证码',
    //     snackPosition: SnackPosition.TOP,
    //     backgroundColor: Colors.red.withOpacity(0.1),
    //     colorText: Colors.red,
    //   );
    //   return;
    // }

    _isLoading.value = true;

    try {
      // 模拟验证过程
      await Future.delayed(const Duration(seconds: 2));
      switch (loginType) {
        case 0 || 1:
          {
            if (!isVerificationCodeComplete()) {
              Get.snackbar(
                '提示',
                '请输入完整的验证码',
                snackPosition: SnackPosition.TOP,
                backgroundColor: Colors.red.withOpacity(0.1),
                colorText: Colors.red,
              );
              break;
            }
            requestLogin({
              "mail": verificationCodeController.text,
              "phone": "",
              "stype": loginType,
              "vcode": contactController.text,
              "ttoken": "",
              "phonemodel": "",
              "phonemac": "",
              "name": "",
              "avatar": "",
            });
            break;
          }

        case 4:
          {
            print("数据获取Facebook");
            final facebook = Facebook();
            bool authResult = await facebook.signInWithFacebook();
            print("数据获取Facebook().token${authResult}");
            if (authResult) {
              print("数据获取_Facebook.token${facebook.token}");
              print("数据获取_Facebook.pictureurl${facebook.pictureurl}");
              print("数据获取_Facebook.pictureurl${facebook.email}");
              // SettingsController().userName = Facebook().name;
              // SettingsController().avatar = Facebook().pictureurl;
              // SettingsController().userId = Facebook().id;
              //SettingsController().avatar = Google().email;

              // 验证成功，跳转到配对页面
              requestLogin({
                "mail": facebook.email,
                "phone": "",
                "stype": loginType,
                "vcode": "",
                "ttoken": facebook.token,
                "phonemodel": "",
                "phonemac": "",
                "name": facebook.name,
                "avatar": facebook.pictureurl,
              });
            }
            break;
          }
        case 3:
          {
            print("数据获取_Google()");
            final google = Google();
            bool authResult = await google.signInWithGoogle();
            print("数据获取_Google().token${authResult}");
            if (authResult) {
              print("数据获取_Google.token${google.token}");
              print("数据获取_Google.pictureurl${google.pictureurl}");
              print("数据获取_Google.email${google.email}");
              print("数据获取_Google.email${google.displayName}");
              // 验证成功，跳转到配对页面
              // SettingsController().userName = Google().displayName!;
              // //SettingsController().avatar = Google().email;
              // SettingsController().userId = Google().id!;
              requestLogin({
                "mail": google.email,
                "phone": "",
                "stype": loginType,
                "vcode": "",
                "ttoken": google.token,
                "phonemodel": "",
                "phonemac": "",
                "name": google.displayName,
                "avatar": google.pictureurl,
              });
            }

            break;
          }
        case 2:
          {
            print("数据获取_FlWX()");

            bool authResult = await FlWX().authBy(
              NormalAuth(
                scope: "snsapi_userinfo",
                state: "wechat_sdk_demo_test",
              ),
              getUserInfo: true, // 按需获取用户信息
            );

            if (authResult) {
              // 确保 FlWX() 返回的是同一个实例，并且 token 已经被设置
              // 这里假设 FlWX().token 在 authBy 成功后被设置
              print("数据获取_FlWX().token${FlWX().token}");
              // SettingsController().userName = FlWX().nickname;
              // SettingsController().avatar = FlWX().headimgurl;
              // SettingsController().userId = FlWX().openid;
              requestLogin({
                "mail": "",
                "phone": "",
                "stype": loginType,
                "vcode": "",
                "ttoken": FlWX().code,
                "phonemodel": "",
                "phonemac": "",
                "name": FlWX().nickname,
                "avatar": FlWX().headimgurl,
              });
              // 验证成功，跳转到配对页面
            }
            break;
          }
        default:
          {
            Get.snackbar(
              '错误',
              '登录失败，请重试',
              snackPosition: SnackPosition.TOP,
              backgroundColor: Colors.red.withOpacity(0.1),
              colorText: Colors.red,
            );
            break;
          }
      }
    } catch (e) {
      Get.snackbar(
        '错误',
        '登录失败，请重试',
        snackPosition: SnackPosition.TOP,
        backgroundColor: Colors.red.withOpacity(0.1),
        colorText: Colors.red,
      );
    } finally {
      _isLoading.value = false;
    }
  }

  // 使用登陆请求服务器
  Future<void> requestLogin(Map params) async {
    var response = await Api.login({
      "mail": params["mail"],
      "phone": params["phone"],
      "stype": params["stype"],
      "vcode": params["vcode"],
      "ttoken": params["ttoken"],
      "phonemodel": params["phonemodel"],
      "phonemac": params["phonemac"],
      "name": params["name"],
      "avatar": params["avatar"],
    });
    if (response != null) {
      print("请求后台数据login回复数据=${response}");

      // final instance = await GetStorage();
      await _storage.write('loginInfo', jsonEncode(response));
      // 2. 将响应数据转换为User对象
      try {
        print('响应数据: ${response.toString()}'); // 调试输出原始数据

        if (response['code'].toString() == '0' &&
            response['msg'].toString() == "Success") {
          // 新增：检查 user 字段是否存在且类型正确
          if (response.containsKey('data') && response['data'] is Map) {
            final user = User.fromJson(response);
            print('用户初始化成功: ${user.name}');

            // 存储到 SharedPreferences (仅存储用户数据)
            //final prefs = await GetStorage();
            await _storage.write(
                'user', jsonEncode(user.toJson())); // 使用 user.toJson()

            Get.offAllNamed(Routes.pairing);
          } else {
            throw FormatException('API 响应缺少 user 字段');
          }
        } else {
          throw Exception('接口返回错误: ${response['msg']}');
        }
      } catch (e, stack) {
        // 新增：打印堆栈跟踪
        print('用户数据处理失败: $e');
        print('堆栈跟踪: $stack');
        Get.snackbar('错误', '用户数据解析失败，请检查网络');
      }

      // Get.offAll(() => IndexWidget());
    }
  }

  // 使用密码登录
  void usePasswordLogin() {
    // 这里可以实现密码登录的逻辑
    Get.snackbar(
      '提示',
      '密码登录功能尚未实现',
      snackPosition: SnackPosition.TOP,
      backgroundColor: Colors.blue.withOpacity(0.1),
      colorText: Colors.blue,
    );
  }
}