import 'dart:io';

import 'package:easy_localization/easy_localization.dart';
import 'package:easy_localization/src/public_ext.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:firebase_crashlytics/firebase_crashlytics.dart';
import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

// import 'package:huawei_hmsavailability/huawei_hmsavailability.dart';
import 'package:mohem_flutter_app/api/login_api_client.dart';
import 'package:mohem_flutter_app/app_state/app_state.dart';
import 'package:intl/intl.dart';
import 'package:mohem_flutter_app/classes/colors.dart';
import 'package:mohem_flutter_app/classes/consts.dart';
import 'package:mohem_flutter_app/classes/notifications.dart';
import 'package:mohem_flutter_app/classes/utils.dart';
import 'package:mohem_flutter_app/config/routes.dart';
import 'package:mohem_flutter_app/dialogs/otp_dialog.dart';
import 'package:mohem_flutter_app/extensions/int_extensions.dart';
import 'package:mohem_flutter_app/extensions/string_extensions.dart';
import 'package:mohem_flutter_app/extensions/widget_extensions.dart';
import 'package:mohem_flutter_app/generated/locale_keys.g.dart';
import 'package:mohem_flutter_app/models/basic_member_information_model.dart';
import 'package:mohem_flutter_app/models/check_mobile_app_version_model.dart';
import 'package:mohem_flutter_app/models/generic_response_model.dart';
import 'package:mohem_flutter_app/models/get_mobile_login_info_list_model.dart';
import 'package:mohem_flutter_app/models/member_information_list_model.dart';
import 'package:mohem_flutter_app/models/member_login_list_model.dart';
import 'package:mohem_flutter_app/models/privilege_list_model.dart';
import 'package:mohem_flutter_app/widgets/button/default_button.dart';
import 'package:mohem_flutter_app/widgets/input_widget.dart';
import 'package:safe_device/safe_device.dart';

// import 'package:safe_device/safe_device.dart';
import 'package:wifi_iot/wifi_iot.dart';

class LoginScreen extends StatefulWidget {
  LoginScreen({Key? key}) : super(key: key);

  @override
  _LoginScreenState createState() {
    return _LoginScreenState();
  }
}

class _LoginScreenState extends State<LoginScreen> {
  TextEditingController username = TextEditingController();
  TextEditingController password = TextEditingController();
  TextEditingController nationalId = TextEditingController();
  TextEditingController dobController = TextEditingController();
  DateTime? selectedDob;

  CheckMobileAppVersionModel? _checkMobileAppVersion;
  MemberLoginListModel? _memberLoginList;

  late final FirebaseMessaging _firebaseMessaging;

  bool _autoLogin = false;

  bool? isAppOpenBySystem;

  bool isJailBroken = false;
  bool isRealDevice = true;
  bool isDevelopmentModeEnable = false;

  BasicMemberInformationModel? _basicMemberInformation;
  GenericResponseModel? genericResponseModel;

  // late HmsApiAvailability hmsApiAvailability;

  @override
  void initState() {
    super.initState();
    ApiConsts.selectedMemberType = MemberType.employee;
    ApiConsts.ISDependetLogin = false;
    // hmsApiAvailability = HmsApiAvailability();
    // checkFirebaseToken();
    if (kReleaseMode) {
      checkDeviceSafety();
    }
  }

  void checkDeviceSafety() {
    try {
      SafeDevice.isJailBroken.then((bool value) {
        isJailBroken = value;
      });
      SafeDevice.isRealDevice.then((value) {
        isRealDevice = value;
      });

      if (Platform.isAndroid) {
        // isOnExternalStorage = await SafeDevice.isOnExternalStorage;
        // SafeDevice.isDevelopmentModeEnable.then((value) {
        //   isDevelopmentModeEnable = value;
        // });
      }
    } catch (error) {
      print(error);
    }
  }

  @override
  void dispose() {
    dobController.dispose();
    super.dispose();
  }

  String? firebaseToken;
  GetMobileLoginInfoListModel? loginInfo;

  Future<void> checkFirebaseToken() async {
    try {
      await checkPrefs();
      Utils.showLoading(context);
      if (Platform.isAndroid) {
        try {
          if (!(await Utils.isGoogleServicesAvailable())) {
            print("HUAWEI APPPP GALLERYYYY!!!!");
            AppNotifications().init(firebaseToken, context);
            AppState().setIsHuawei = true;
            AppNotifications().initHuaweiPush(checkLoginInfo);
          } else {
            print("GOOGLE PLAY STOREEEE!!!!");
            await Firebase.initializeApp();
            _firebaseMessaging = FirebaseMessaging.instance;
            try {
              firebaseToken = await _firebaseMessaging.getToken();
            } catch (ex) {
              firebaseToken = "";
            }
            AppNotifications().init(firebaseToken, context);

            if (isJailBroken || !isRealDevice) {
              Utils.hideLoading(context);
              Navigator.pushNamedAndRemoveUntil(context, AppRoutes.unsafeDeviceScreen, (_) => false);
            } else {
              checkLoginInfo();
            }

            await FirebaseCrashlytics.instance.setCrashlyticsCollectionEnabled(true);
          }
          // });
        } catch (ex) {}
      } else {
        await Firebase.initializeApp();
        _firebaseMessaging = FirebaseMessaging.instance;
        firebaseToken = await _firebaseMessaging.getToken();
        String? firebaseAPNSToken = await _firebaseMessaging.getAPNSToken();
        print("Firebase Token: $firebaseToken");
        print("Firebase APNS Token: $firebaseAPNSToken");
        AppNotifications().init(firebaseToken, context);
        checkLoginInfo();
        await FirebaseCrashlytics.instance.setCrashlyticsCollectionEnabled(true);
      }
    } catch (ex) {
      Utils.hideLoading(context);
      Utils.handleException(ex, context, null);
      await FirebaseCrashlytics.instance.setCrashlyticsCollectionEnabled(true);
    }
  }

  void checkLoginInfo() async {
    try {
      loginInfo = await LoginApiClient().getMobileLoginInfoNEW(
        AppState().getIsHuawei ? AppState().getHuaweiPushToken : firebaseToken ?? "",
        Platform.isAndroid ? "android" : "ios",
        memberType: ApiConsts.selectedMemberType.value,
      );
      if (ApiConsts.selectedMemberType.isDependent) {
        Utils.hideLoading(context);
        return;
      }
      if (loginInfo == null) {
        await checkPrefs();
        _autoLogin = false;
        Utils.hideLoading(context);
        return;
      } else {
        loginInfo!.deviceToken = firebaseToken;
        await checkPrefs();
        Utils.hideLoading(context);
        performLogin();
      }
    } catch (ex) {
      Utils.hideLoading(context);
    }
  }

  Future<void> checkPrefs() async {
    String username = await Utils.getStringFromPrefs(SharedPrefsConsts.username);
    if (username.isNotEmpty) {
      String password = await Utils.getStringFromPrefs(SharedPrefsConsts.password);
      // String firebaseToken = await Utils.getStringFromPrefs(SharedPrefsConsts.firebaseToken);
      // print("firebaseToken:$firebaseToken");
      this.username.text = username;
      this.password.text = password;
      _autoLogin = true;
    }
  }

  void performLogin() async {
    Utils.showLoading(context);
    try {
      _checkMobileAppVersion = await LoginApiClient().checkMobileAppVersion();
      _memberLoginList = await LoginApiClient().memberLogin(username.text, password.text);
      AppState().setMemberLoginListModel = _memberLoginList;
      AppState().setUserName = username.text;
      AppState().password = password.text;
      if (_autoLogin) {
        AppState().setMemberInformationListModel = (await MemberInformationListModel.getFromPrefs()).first;
        AppState().setPrivilegeListModel = await PrivilegeListModel.getFromPrefs();
        String mohemmWifiSSID = await Utils.getStringFromPrefs(SharedPrefsConsts.mohemmWifiSSID);
        String mohemmWifiPassword = await Utils.getStringFromPrefs(SharedPrefsConsts.mohemmWifiPassword);
        AppState().setMohemmWifiSSID = mohemmWifiSSID;
        AppState().setMohemmWifiPassword = mohemmWifiPassword;
      }
      Utils.hideLoading(context);
      if (_autoLogin) {
        Navigator.pushReplacementNamed(context, AppRoutes.verifyLastLogin, arguments: loginInfo);
      } else {
        Navigator.pushNamed(context, AppRoutes.verifyLogin, arguments: "$firebaseToken");
      }
      Utils.saveStringFromPrefs(SharedPrefsConsts.password, password.text);
    } catch (ex) {
      print(ex);
      print(ex.toString());
      Utils.hideLoading(context);
      Utils.handleException(ex, context, (msg) {
        Utils.confirmDialog(
          context,
          msg,
          onTap: () async {
            if (msg.toLowerCase().contains("password has expired")) {
              Navigator.pop(context);
              // await Navigator.pushNamed(context, AppRoutes.newPassword, arguments: username.text);
              performForgotPassword();
            } else {
              Navigator.pop(context);
            }
          },
        );
      });
    }
  }

  void performForgotPassword() async {
    // if (username.text.isEmpty) {
    //   return;
    // }
    Utils.showLoading(context);
    try {
      _basicMemberInformation = await LoginApiClient().getBasicUserInformation("CS", username.text);
      genericResponseModel = await LoginApiClient().sendPublicActivationCode(_basicMemberInformation?.pMOBILENUMBER, username.text);
      Utils.hideLoading(context);
      OtpDialog(
        context,
        1,
        int.tryParse(_basicMemberInformation?.pMOBILENUMBER ?? ""),
        (value, TextEditingController _pinPutController) async {
          Utils.showLoading(context);
          try {
            GenericResponseModel? genericResponseModel = await LoginApiClient().checkPublicActivationCode(value, username.text);
            if (genericResponseModel?.errorMessage != null) {
              Utils.showToast(genericResponseModel?.errorMessage ?? "");
              return;
            }
            Utils.hideLoading(context);
            await Navigator.pushNamed(context, AppRoutes.newPassword, arguments: username.text);
            Navigator.pop(context);
            // Navigator.pop(context);
          } catch (ex) {
            print(ex);
            _pinPutController.clear();
            otpFieldClear.value = "";
            Utils.hideLoading(context);
            Utils.handleException(ex, context, null);
          }
        },
        () => {
          Navigator.pop(context),
        },
        onResendCode: () {
          performForgotPassword();
        },
      ).displayDialog(context);
    } catch (ex) {
      print(ex);
      Utils.hideLoading(context);
      Utils.handleException(ex, context, null);
    }
  }

  void _onTabChanged(MemberType type) {
    if (ApiConsts.selectedMemberType != type) {
      setState(() {
        ApiConsts.selectedMemberType = type;
      });
      checkLoginInfo();
    }
  }

  Widget _buildTabSwitcher() {
    bool isEmployee = ApiConsts.selectedMemberType == MemberType.employee;
    bool isAr = AppState().isArabic(context);

    return Container(
      height: 46,
      decoration: BoxDecoration(
        color: const Color(0xffF2F4F7),
        borderRadius: BorderRadius.circular(12),
      ),
      padding: const EdgeInsets.all(4),
      child: Row(
        children: [
          Expanded(
            child: Container(
              decoration: BoxDecoration(
                color: isEmployee ? Colors.white : Colors.transparent,
                borderRadius: BorderRadius.circular(9),
                boxShadow: isEmployee
                    ? [
                        BoxShadow(
                          color: Colors.black.withOpacity(0.06),
                          blurRadius: 4,
                          offset: const Offset(0, 2),
                        )
                      ]
                    : null,
              ),
              alignment: Alignment.center,
              child: (isAr ? "الموظف" : "Employee").toText14(
                color: isEmployee ? MyColors.textMixColor : MyColors.grey70Color,
                isBold: isEmployee,
              ),
            ).onPress(() {
              _onTabChanged(MemberType.employee);
            }),
          ),
          Expanded(
            child: Container(
              decoration: BoxDecoration(
                color: !isEmployee ? Colors.white : Colors.transparent,
                borderRadius: BorderRadius.circular(9),
                boxShadow: !isEmployee
                    ? [
                        BoxShadow(
                          color: Colors.black.withOpacity(0.06),
                          blurRadius: 4,
                          offset: const Offset(0, 2),
                        )
                      ]
                    : null,
              ),
              alignment: Alignment.center,
              child: (isAr ? "التابع" : "Dependent").toText14(
                color: !isEmployee ? MyColors.textMixColor : MyColors.grey70Color,
                isBold: !isEmployee,
              ),
            ).onPress(() {
              _onTabChanged(MemberType.dependent);
            }),
          ),
        ],
      ),
    );
  }

  Future<void> _selectDateOfBirth(BuildContext context) async {
    DateTime initialDate = selectedDob ?? DateTime(2000, 1, 1);
    DateTime firstDate = DateTime(1920, 1, 1);
    DateTime lastDate = DateTime.now();

    DateTime? picked = await showDatePicker(
      context: context,
      initialDate: initialDate.isAfter(lastDate) ? lastDate : initialDate,
      firstDate: firstDate,
      lastDate: lastDate,
      builder: (context, child) {
        return Theme(
          data: Theme.of(context).copyWith(
            colorScheme: const ColorScheme.light(
              primary: MyColors.textMixColor,
              onPrimary: Colors.white,
              onSurface: MyColors.darkTextColor,
            ),
          ),
          child: child!,
        );
      },
    );

    if (picked != null) {
      setState(() {
        selectedDob = picked;
        dobController.text = DateFormat('yyyy-MM-dd', 'en_US').format(picked);
      });
    }
  }

  String getFormattedBirthDate() {
    DateTime? date = selectedDob;
    if (date == null && dobController.text.trim().isNotEmpty) {
      String text = dobController.text.trim();
      try {
        if (text.contains('-')) {
          List<String> parts = text.split('-');
          if (parts[0].length == 4) {
            // yyyy-MM-dd
            date = DateTime.utc(int.parse(parts[0]), int.parse(parts[1]), int.parse(parts[2]));
          } else if (parts[2].length == 4) {
            // dd-MM-yyyy
            date = DateTime.utc(int.parse(parts[2]), int.parse(parts[1]), int.parse(parts[0]));
          }
        } else if (text.contains('/')) {
          List<String> parts = text.split('/');
          if (parts[0].length == 4) {
            // yyyy/MM/dd
            date = DateTime.utc(int.parse(parts[0]), int.parse(parts[1]), int.parse(parts[2]));
          } else if (parts[2].length == 4) {
            // dd/MM/yyyy
            date = DateTime.utc(int.parse(parts[2]), int.parse(parts[1]), int.parse(parts[0]));
          }
        } else {
          DateTime parsed = DateTime.parse(text);
          date = DateTime.utc(parsed.year, parsed.month, parsed.day);
        }
      } catch (_) {
        return "";
      }
    }

    if (date != null) {
      int utcMillis = DateTime.utc(date.year, date.month, date.day).millisecondsSinceEpoch;
      return "/Date($utcMillis)/";
    }
    return "";
  }

  void performDependentLogin() async {
    if (nationalId.text.trim().isEmpty) {
      Utils.showToast(AppState().isArabic(context) ? "الرجاء إدخال رقم الهوية الوطنية" : "Please enter National ID");
      return;
    }
    String birthDateStr = getFormattedBirthDate();
    if (birthDateStr.isEmpty) {
      Utils.showToast(AppState().isArabic(context) ? "الرجاء تحديد تاريخ الميلاد" : "Please select Date of Birth");
      return;
    }

    Utils.showLoading(context);
    try {
      GenericResponseModel? depLoginResponse = await LoginApiClient().memberLoginDependent(
        nationalId: nationalId.text.trim(),
        birthDate: birthDateStr,
        context: context,
      );

      if (depLoginResponse?.errorMessage != null && depLoginResponse!.errorMessage!.isNotEmpty) {
        Utils.hideLoading(context);
        Utils.showToast(depLoginResponse.errorMessage!);
        return;
      }

      String? logInTokenID = depLoginResponse?.logInTokenID;
      String? mobileNumber = depLoginResponse?.getWalaplusDepInfoModel?.pEmpMobileNumber;

      if (logInTokenID == null || mobileNumber == null || mobileNumber.isEmpty) {
        Utils.hideLoading(context);
        Utils.showToast(AppState().isArabic(context) ? "تعذر الحصول على معلومات التابع" : "Unable to retrieve dependent information");
        return;
      }

      // Step 2: Send OTP
      GenericResponseModel? sendOtpResponse = await LoginApiClient().mohemmSendOTPDependent(
        nationalId: nationalId.text.trim(),
        mobileNumber: mobileNumber,
        logInTokenID: logInTokenID,
        context: context,
      );

      Utils.hideLoading(context);

      if (sendOtpResponse?.messageStatus == 1) {
        // Step 3: Open OTP Dialog
        _showDependentOtpDialog(logInTokenID, mobileNumber);
      } else {
        Utils.showToast(sendOtpResponse?.errorMessage ?? (AppState().isArabic(context) ? "فشل إرسال رمز التحقق" : "Failed to send OTP"));
      }
    } catch (ex) {
      print(ex);
      Utils.hideLoading(context);
      Utils.handleException(ex, context, null);
    }
  }

  void _showDependentOtpDialog(String logInTokenID, String mobileNumber) {
    OtpDialog(
      context,
      1,
      int.tryParse(mobileNumber),
      (value, TextEditingController _pinPutController) async {
        Utils.showLoading(context);
        try {
          GenericResponseModel? checkOtpResponse = await LoginApiClient().mohemmCheckOTPDependent(
            logInTokenID: logInTokenID,
            activationCode: value,
            nationalId: nationalId.text.trim(),
            mobileNumber: mobileNumber,
            context: context,
          );
          Utils.hideLoading(context);

          if (checkOtpResponse?.errorMessage != null && checkOtpResponse!.errorMessage!.isNotEmpty) {
            Utils.showToast(checkOtpResponse.errorMessage!);
            _pinPutController.clear();
            otpFieldClear.value = "";
            return;
          }

          Navigator.pop(context);
          Utils.showToast(AppState().isArabic(context) ? "تم التحقق بنجاح" : "Verified successfully");
          if (ApiConsts.ISDependetLogin) {
            Navigator.pushNamedAndRemoveUntil(context, AppRoutes.dashboardScreenForDependet, (route) => false);
          }
        } catch (ex) {
          print(ex);
          _pinPutController.clear();
          otpFieldClear.value = "";
          Utils.hideLoading(context);
          Utils.handleException(ex, context, null);
        }
      },
      () {
        Navigator.pop(context);
      },
      onResendCode: () async {
        Utils.showLoading(context);
        try {
          await LoginApiClient().mohemmSendOTPDependent(
            nationalId: nationalId.text.trim(),
            mobileNumber: mobileNumber,
            logInTokenID: logInTokenID,
            context: context,
          );
          Utils.hideLoading(context);
          Utils.showToast(AppState().isArabic(context) ? "تم إعادة إرسال رمز التحقق" : "Verification code resent");
        } catch (ex) {
          Utils.hideLoading(context);
          Utils.handleException(ex, context, null);
        }
      },
    ).displayDialog(context);
  }

  @override
  Widget build(BuildContext context) {
    if (isAppOpenBySystem == null) {
      isAppOpenBySystem = (ModalRoute.of(context)!.settings.arguments ?? true) as bool;
      if (!kReleaseMode) {
        // username.text = "15444"; // Maha User
        // username.text = "15153"; // Tamer User
        // password.text = "Abcd@12345";

        // username.text = "206535"; // Hashim User
        // password.text = "Namira786";

        // 13777
        // Ab12345cd
      }
      if (isAppOpenBySystem!) checkFirebaseToken();
    }

    // username.text = "15444";

    return Scaffold(
      body: Column(
        children: [
          const SizedBox(height: 23),
          Expanded(
            child: Padding(
              padding: const EdgeInsets.all(21.0),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Row(
                    children: [
                      // Expanded(
                      //   child:SizedBox(child: HmgConnectivityButton(),),
                      // ),
                      Row(
                        children: [
                          LocaleKeys.english.tr().toText14(color: AppState().isArabic(context) ? null : MyColors.textMixColor).onPress(() {
                            context.setLocale(const Locale("en", "US"));
                          }),
                          Container(
                            width: 1,
                            color: MyColors.darkWhiteColor,
                            height: 16,
                            margin: const EdgeInsets.only(left: 10, right: 10),
                          ),
                          LocaleKeys.arabic.tr().toText14(color: !AppState().isArabic(context) ? null : MyColors.textMixColor).onPress(() {
                            context.setLocale(const Locale("ar", "SA"));
                          }),
                        ],
                      ),
                    ],
                  ),
                  Expanded(
                    child: Column(
                      mainAxisSize: MainAxisSize.min,
                      crossAxisAlignment: CrossAxisAlignment.start,
                      mainAxisAlignment: MainAxisAlignment.center,
                      children: [
                        _buildTabSwitcher(),
                        20.height,
                        LocaleKeys.login.tr().toText24(isBold: true),
                        LocaleKeys.pleaseEnterLoginDetails.tr().toText16(),
                        16.height,
                        if (ApiConsts.selectedMemberType == MemberType.employee) ...[
                          InputWidget(LocaleKeys.username.tr(), "123456", username),
                          12.height,
                          InputWidget(LocaleKeys.password.tr(), "xxxxxx", password, isTextIsPassword: true),
                          9.height,
                          Align(
                            alignment: Alignment.centerRight,
                            child: LocaleKeys.forgotPassword.tr().toText12(isUnderLine: true, color: MyColors.textMixColor).onPress(
                              () {
                                // Navigator.pushNamed(context, AppRoutes.forgotPassword);
                                performForgotPassword();
                              },
                            ),
                          ),
                          20.height,
                        ] else ...[
                          InputWidget(AppState().isArabic(context) ? "الهوية الوطنية" : "National ID", "1234567890", nationalId, isInputTypeNum: true),
                          12.height,
                          GestureDetector(
                            behavior: HitTestBehavior.opaque,
                            onTap: () => _selectDateOfBirth(context),
                            child: Stack(
                              alignment: AlignmentDirectional.centerEnd,
                              children: [
                                IgnorePointer(
                                  child: InputWidget(
                                    LocaleKeys.dateOfBirth.tr(),
                                    "YYYY-MM-DD",
                                    dobController,
                                  ),
                                ),
                                Positioned.directional(
                                  textDirection: Directionality.of(context),
                                  end: 16,
                                  child: const Icon(
                                    Icons.calendar_today_outlined,
                                    size: 20,
                                    color: MyColors.grey70Color,
                                  ),
                                ),
                              ],
                            ),
                          ),
                          20.height,
                        ],
                        // DefaultButton(
                        //   "Connect HMG Network",
                        //   () async {
                        //     SystemChannels.textInput.invokeMethod('TextInput.hide');
                        //     connectWithHmgNetwork();
                        //   },
                        // ),
                      ],
                    ),
                  )
                ],
              ),
            ),
          ),
          DefaultButton(LocaleKeys.login.tr(), () async {
            SystemChannels.textInput.invokeMethod('TextInput.hide');
            if (ApiConsts.ISDependetLogin) {
              performDependentLogin();
            } else {
              performLogin();
            }
          }).insideContainer
        ],
      ),
    );
  }

  void connectWithHmgNetwork() async {
    try {
      bool isConnected = await WiFiForIoTPlugin.connect("MOHEMM-CONNECT", password: "0987654321", joinOnce: Platform.isIOS ? false : true, security: NetworkSecurity.WPA, withInternet: false);

      if (isConnected) {
        await WiFiForIoTPlugin.forceWifiUsage(true);
        // if (Platform.isIOS) {
        //   await closeWifiRequest();
        //   await Future.delayed(Duration(seconds: 6));
        // } else {
        //   await WiFiForIoTPlugin.forceWifiUsage(true);
        // }
      }
    } catch (e) {
      print("----------------o----");
      print(e);
    }
  }

  Future<bool> closeWifiRequest() async {
    if (Platform.isAndroid) {
      await WiFiForIoTPlugin.forceWifiUsage(false);
    }
    return await WiFiForIoTPlugin.disconnect();
  }
}