import 'package:get/get.dart';
import 'package:injectable/injectable.dart';
import 'package:location/data/api/atmob_api.dart';
import 'package:location/data/api/request/login_request.dart';
import 'package:location/data/api/request/send_code_request.dart';
import 'package:location/data/bean/member_status_info.dart';
import 'package:location/data/consts/error_code.dart';
import 'package:location/utils/atmob_log.dart';
import 'package:location/utils/http_handler.dart';
import 'package:location/utils/mmkv_util.dart';

import '../api/response/login_response.dart';

@lazySingleton
class AccountRepository {
  final AtmobApi atmobApi;

  final String keyAccountLoginPhoneNum = 'key_account_login_phone_num';
  final String keyAccountLoginToken = 'key_account_login_token';

  RxnString loginPhoneNum = RxnString();
  RxBool isLogin = RxBool(false);
  Rxn<MemberStatusInfo> memberStatusInfo = Rxn<MemberStatusInfo>();

  int? _lastRequestCodeTime;
  int _errorCodeTimes = 0;

  static String? token;

  AccountRepository(this.atmobApi) {
    token = KVUtil.getString(keyAccountLoginToken, null);
    isLogin.bindStream(
      loginPhoneNum.map((value) {
        return value?.isNotEmpty == true;
      }),
    );
    loginPhoneNum.value = KVUtil.getString(keyAccountLoginPhoneNum, null);
  }

  Future<void> loginSendCode(String phoneNum) {
    final currentTime = DateTime.now().millisecondsSinceEpoch;

    // 检查是否在 60 秒内重复请求
    if (currentTime - (_lastRequestCodeTime ?? 0) < 60 * 1000) {
      throw RequestCodeTooOftenException();
    }
    return atmobApi
        .loginSendCode(SendCodeRequest(phoneNum))
        .then(HttpHandler.handle(true))
        .then((value) {
      _lastRequestCodeTime = currentTime;
      _errorCodeTimes = 0;
    });
  }

  Future<LoginResponse> loginUserLogin(
      String phoneNum, String verificationCode) {
    if (_errorCodeTimes >= 5) {
      throw LoginTooOftenException();
    }
    return atmobApi
        .loginUserLogin(LoginRequest(phoneNum, verificationCode))
        .then(HttpHandler.handle(true))
        .then((response) {
      _errorCodeTimes = 0;
      onLoginSuccess(phoneNum, response.authToken);
      return response;
    }).catchError((error) {
      if (error is ServerErrorException &&
          error.code == ErrorCode.verificationCodeError) {
        _errorCodeTimes++;
      }
      throw error;
    });
  }

  void onLoginSuccess(String phoneNum, String authToken) {
    AccountRepository.token = token;
    loginPhoneNum.value = phoneNum;

    KVUtil.putString(keyAccountLoginPhoneNum, phoneNum);
    KVUtil.putString(keyAccountLoginToken, authToken);

    refreshMemberStatus();
  }

  void refreshMemberStatus() {}
}

class RequestCodeTooOftenException implements Exception {
  final String message;

  /// 可选的构造函数，支持自定义错误信息
  RequestCodeTooOftenException([this.message = '请求验证码过于频繁']);

  @override
  String toString() => message;
}

class LoginTooOftenException implements Exception {
  final String message;

  /// 可选的构造函数，支持自定义错误信息
  LoginTooOftenException([this.message = '登录过于频繁']);

  @override
  String toString() => message;
}