import 'dart:async';
import 'dart:convert';
import 'dart:developer';
import 'dart:io';

import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:flutter/material.dart';
import 'package:flutter_callkit_incoming/entities/android_params.dart';
import 'package:flutter_callkit_incoming/entities/call_event.dart';
import 'package:flutter_callkit_incoming/entities/call_kit_params.dart';
import 'package:flutter_callkit_incoming/entities/ios_params.dart';
import 'package:flutter_callkit_incoming/entities/notification_params.dart';
import 'package:flutter_callkit_incoming/flutter_callkit_incoming.dart';
import 'package:google_api_availability/google_api_availability.dart';
import 'package:huawei_push/huawei_push.dart' as h_push;
import 'package:test_sa/controllers/notification/notification_manger.dart';
import 'package:test_sa/extensions/string_extensions.dart';
import 'package:test_sa/models/device/device_transfer.dart';
import 'package:test_sa/models/new_models/gas_refill_model.dart';
import 'package:test_sa/modules/cm_module/cm_detail_page.dart';
import 'package:test_sa/modules/cx_module/survey/survey_page.dart';
import 'package:test_sa/modules/pm_module/ppm_wo/ppm_details_page.dart';
import 'package:test_sa/modules/pm_module/recurrent_wo/recurrent_work_order_view.dart';
import 'package:test_sa/modules/tm_module/device_transfer/device_transfer_details.dart';
import 'package:test_sa/modules/tm_module/tasks/task_request_detail_view.dart';
import 'package:test_sa/modules/tm_module/gas_refill/gas_refill_details.dart';
import 'package:test_sa/new_views/common_widgets/default_app_bar.dart';
import 'package:test_sa/views/widgets/loaders/no_data_found.dart';

@pragma('vm:entry-point')
Future<void> firebaseMessagingBackgroundHandler(RemoteMessage message) async {
  if (message.notification == null && message.data != null) {
    handleDataMessage(message.data, true);
  }
}

@pragma('vm:entry-point')
Future<void> onBackgroundMessage(CallEvent event) async {
  // This executes when a background/killed action happens

  switch (event.eventName) {
    case CallEventConstants.actionCallAccept:
      "actionCallAccept".showToast;
      break;
    case CallEventConstants.actionCallDecline:
      "actionCallDecline".showToast;
      break;
    default:
      break;
  }
}

class FirebaseNotificationManger {
  static FirebaseMessaging messaging = FirebaseMessaging.instance;
  static String? token;

  static Future<void> getToken() async {
    NotificationSettings settings = await messaging.requestPermission(alert: true, announcement: false, badge: true, carPlay: false, criticalAlert: false, provisional: false, sound: true);

    if (Platform.isAndroid) {
      try {
        if (!(await isGoogleServicesAvailable())) {
          h_push.Push.enableLogger();
          final result = await h_push.Push.setAutoInitEnabled(true);
          h_push.Push.onMessageReceivedStream.listen(_onMessageReceived, onError: _onMessageReceiveError);

          h_push.Push.getTokenStream.listen((hToken) {
            // onToken(token);
            // print("Huawei Token: ${hToken}");
            token = hToken;
          }, onError: (e) {
            print("Huawei TokenError" + e.toString());
          });
          h_push.Push.getToken('');
        } else {
          if (settings.authorizationStatus == AuthorizationStatus.authorized) {
            try {
              token = await messaging.getToken();
            } catch (ex) {}
          }
        }
      } catch (ex) {
        print("Notification Exception: " + ex.toString());
      }
    } else {
      if (settings.authorizationStatus == AuthorizationStatus.authorized) {
        try {
          token = await messaging.getToken();
        } catch (ex) {}
      }
    }
    //print("pushToken:$token");
  }

  static void _onMessageReceived(h_push.RemoteMessage remoteMessage) {
    print("onMessageReceivedStream:${remoteMessage.toMap()}");
  }

  static void _onMessageReceiveError(Object error) {
    print("onMessageReceivedStream:${error.toString()}");
  }

  static Future<bool> isGoogleServicesAvailable() async {
    try {
      GooglePlayServicesAvailability availability = await GoogleApiAvailability.instance.checkGooglePlayServicesAvailability();
      String status = availability.toString().split('.').last;
      if (status == "success") {
        return true;
      }
      return false;
    } catch (ex) {
      return false;
    }
  }

  static void handleMessage(context, Map<String, dynamic> messageData) {
    if (messageData["requestType"] != null && messageData["requestNumber"] != null) {
      Widget? serviceClass;

      String? transactionType = messageData["transactionType"]?.toString();

      if (transactionType == null) {
        return;
      } else if (transactionType == "17" && messageData["requestType"] == "chat") {
        int moduleId = int.parse(messageData["moduleId"].toString());
        int requestNumber = int.parse(messageData["requestNumber"].toString());

        switch (moduleId) {
          case 1: // cm
            serviceClass = CMDetailPage(requestId: requestNumber, moduleId: moduleId);
            break;
          case 2: // gas refill
            serviceClass = GasRefillDetailsPage(
              priority: messageData["priority"],
              date: messageData["createdOn"],
              moduleId: moduleId,
              model: GasRefillModel(id: requestNumber),
            );
            break;
          case 3: //transfer
            serviceClass = DeviceTransferDetails(model: DeviceTransfer(id: requestNumber), moduleId: moduleId);
            break;
          case 6: // task
            serviceClass = TaskRequestDetailsView(
              taskId: requestNumber,
              moduleId: moduleId,
              // requestDetails: RequestsDetails(nameOfType: requestData?.nameOfType, status: requestData?.statusName, priority: requestData?.priorityName, date: requestData?.transactionDate,                  ),
            );
            // ServiceRequestDetailMain(requestId: int.parse(messageData["requestNumber"].toString()), moduleId: 1);
            break;

          default:
            serviceClass = const Scaffold(appBar: DefaultAppBar(), body: Center(child: NoDataFound()));
        }

        Navigator.of(context).push(MaterialPageRoute(builder: (_) => serviceClass!));
        return;
      }

      // PPM=1,
      //   ServiceRequestEngineer = 3,
      //   AssetTransfer=7,
      //   SparePartTransaction= 8,
      //   GasRefill=9,
      //   TechnicalRetirmentWO = 11,
      //   Recurrent = 12,
      switch (transactionType) {
        case "1":
          serviceClass = PpmDetailsPage(requestId: int.parse(messageData["requestNumber"].toString()));
          break;
        //these three request are same corrective maintenance....
        case "3":
          serviceClass = CMDetailPage(requestId: int.parse(messageData["requestNumber"].toString()), moduleId: 1);
          break;
        case "8":
          serviceClass = CMDetailPage(requestId: int.parse(messageData["requestNumber"].toString()), moduleId: 1);
          break;
        case "11":
          serviceClass = CMDetailPage(requestId: int.parse(messageData["requestNumber"].toString()), moduleId: 1);
          break;
        case "7":
          serviceClass = DeviceTransferDetails(model: DeviceTransfer(id: int.parse(messageData["requestNumber"].toString())), moduleId: 3);
          break;
        case "9":
          serviceClass = GasRefillDetailsPage(
            priority: messageData["priority"],
            date: messageData["createdOn"],
            moduleId: 2,
            model: GasRefillModel(id: int.parse(messageData["requestNumber"].toString())),
          );
          break;
        case "12":
          serviceClass = RecurrentWorkOrderView(taskId: int.parse(messageData["requestNumber"].toString()));
        case "17":
          serviceClass = SurveyPage(surveyId: int.parse(messageData["requestNumber"].toString()));

        //Didn't handle task request yet...
        // case 6:
        //   serviceClass = TaskRequestDetailsView(
        //       taskId: int.parse(messageData["requestNumber"].toString()),
        //       requestDetails: RequestsDetails(nameOfType: messageData["sourceName"], status: messageData["statusName"], priority: messageData["priorityName"], date: messageData["createdDate"]));
        //   return;
        default:
          serviceClass = const Scaffold(appBar: DefaultAppBar(), body: Center(child: NoDataFound()));
      }

      // if (messageData["requestType"] == "Service request to engineer") {
      //   serviceClass = ServiceRequestDetailMain(requestId: messageData["requestNumber"] ?? '');
      // } else if (messageData["requestType"] == "Gas Refill") {
      //   serviceClass = GasRefillDetailsPage(
      //     priority: messageData["priority"],
      //     date: messageData["createdOn"],
      //     model: GasRefillModel(id: int.parse(messageData["requestNumber"].toString())),
      //   );
      // } else if (messageData["requestType"] == "Asset Transfer") {
      //   serviceClass = DeviceTransferDetails(model: DeviceTransfer(id: int.parse(messageData["requestNumber"].toString())));
      // } else if (messageData["requestType"] == "PPM") {
      //   serviceClass = PpmDetailsPage(requestId: int.parse(messageData["requestNumber"].toString()));
      // }
      // else if (data["requestType"] == "WorkOrder") {
      //
      // }
      Navigator.of(context).push(MaterialPageRoute(builder: (_) => serviceClass!));
    }
  }

  static initialized(BuildContext context) async {
//TOD0 add platform check here also
    if (!(await isGoogleServicesAvailable()) && Platform.isAndroid) {
      var initialNotification = await h_push.Push.getInitialNotification();
      if (initialNotification != null) {
        Map<String, dynamic> remoteData = Map<String, dynamic>.from(initialNotification["extras"] as Map);
        handleMessage(context, remoteData);
      }

      h_push.Push.onNotificationOpenedApp.listen((message) {
        try {
          if (message is Map<String, dynamic>) {
            Map<String, dynamic> remoteData = message;
            remoteData = remoteData["extras"];

            handleMessage(context, remoteData);
          }
        } catch (ex) {
          print("parsingError:$ex");
        }
      }, onError: (e) => print("onNotificationOpenedApp Error${e.toString()}"));
      return;
    }

    NotificationSettings settings;

    try {
      settings = await messaging.requestPermission(
        alert: true,
        announcement: false,
        badge: true,
        carPlay: false,
        criticalAlert: false,
        provisional: false,
        sound: true,
      );
    } catch (error) {
      return;
    }

    if (settings.authorizationStatus != AuthorizationStatus.authorized) {
      return;
    }

    await FirebaseMessaging.instance.setAutoInitEnabled(true);
    await FirebaseMessaging.instance.setForegroundNotificationPresentationOptions(alert: true, badge: true, sound: true);

    FirebaseMessaging.instance.getInitialMessage().then((initialMessage) {
      if (initialMessage != null) {
        handleMessage(context, initialMessage.data);
      }
    });

    FirebaseMessaging.onMessage.listen((RemoteMessage message) {
      print("onMessage:${message.toMap()}");
      if (Platform.isAndroid) {
        if (message.data["notificationType"] != 'NurseConfirmArrive') {
          NotificationManger.showNotification(
              title: message.notification?.title ?? "", subtext: message.notification?.body ?? "", hashcode: int.tryParse("1234" ?? "") ?? 1, payload: json.encode(message.data), context: context);
        }
      }
      if (message.notification == null && message.data != null) {
        handleDataMessage(message.data, false);
      }
      return;
    });
    FirebaseMessaging.onMessageOpenedApp.listen((RemoteMessage message) {
      handleMessage(context, message.data);
    });
    FirebaseMessaging.onBackgroundMessage(firebaseMessagingBackgroundHandler);
  }
}

Future<void> handleDataMessage(Map<String, dynamic> messageData, bool isFromBackground) async {
  print("handleDataMessage:${messageData}");
  // if (messageData["data"] != null) {
  //   messageData = messageData["data"];
  // } else {
  //   return;
  // }
  if (messageData["type"] != null && messageData["type"] == "incoming_call") {
// if (notificationType == 'incoming_call' || transactionType == 'call') {

    final callId = messageData['callId'] as String? ?? messageData['sessionId'] as String? ?? DateTime.now().millisecondsSinceEpoch.toString();

    final callerId = messageData['callerId'] as String? ?? messageData['callerEmployeeNumber'] as String? ?? messageData['sourceUserId'] as String? ?? 'unknown';

    final callerName = messageData['callerName'] as String? ?? messageData['callerUserName'] as String? ?? messageData['userName'] as String? ?? 'Unknown Caller';

    final callerEmployeeNumber = messageData['callerEmployeeNumber'] as String? ?? callerId;
    final calleeEmployeeNumber = messageData['calleeEmployeeNumber'] as String? ?? callerId;

    final isVideoCall = () {
      final value = messageData['isVideoCall'];
      if (value is bool) return value;
      if (value is String) return value.toLowerCase() == 'true';
      if (messageData['callType'] == 'video') return true;
      return false;
    }();

    final moduleId = messageData['moduleId'] as String? ?? messageData['applicationId']?.toString();
    final referenceId = messageData['referenceId'] as String?;
    final conversationId = messageData['conversationId'] as String?;

    WidgetsFlutterBinding.ensureInitialized();
    Timer? _callTimeoutTimer;
    try {
      final callKitParams = CallKitParams(
        id: callId,
        nameCaller: callerName,
        appName: 'ATOMS',
        avatar: '',
        handle: callerEmployeeNumber,
        type: isVideoCall ? 1 : 0,
        duration: 30000,
        missedCallNotification: const NotificationParams(
          showNotification: true,
          isShowCallback: false,
          subtitle: 'Missed call',
          callbackText: 'Call back',
        ),
        callingNotification: const NotificationParams(
          showNotification: true,
          isShowCallback: true,
          subtitle: 'Calling...',
          callbackText: 'Hang Up',
        ),
        extra: {
          'callId': callId,
          'callerId': callerId,
          'callerEmployeeNumber': callerEmployeeNumber,
          'calleeEmployeeNumber': calleeEmployeeNumber,
          'callerName': callerName,
          'moduleId': moduleId ?? '',
          'referenceId': referenceId ?? '',
          'conversationId': conversationId ?? '',
          'isVideoCall': isVideoCall,
          'timestamp': DateTime.now().toIso8601String(),
        },
        android: const AndroidParams(
          // isCustomNotification: true,
          isShowLogo: false,
          ringtonePath: 'system_ringtone_default',
          backgroundColor: '#0955fa',
          backgroundUrl: '',
          actionColor: '#4CAF50',
          textColor: '#ffffff',
          incomingCallNotificationChannelName: 'Incoming Calls',
          missedCallNotificationChannelName: 'Missed Calls',
        ),
        ios: const IOSParams(
          iconName: 'CallKitLogo',
          handleType: 'generic',
          supportsVideo: true,
          maximumCallGroups: 1,
          maximumCallsPerCallGroup: 1,
          audioSessionMode: 'default',
          audioSessionActive: true,
          audioSessionPreferredSampleRate: 44100.0,
          audioSessionPreferredIOBufferDuration: 0.005,
          supportsDTMF: true,
          supportsHolding: false,
          supportsGrouping: false,
          supportsUngrouping: false,
          ringtonePath: 'system_ringtone_default',
        ),
      );
      await FlutterCallkitIncoming.requestNotificationPermission({
        //   // "title": "Notification permission",
        //   // "rationaleMessagePermission": "Notification permission is required, to show notification.",
        //   // "postNotificationMessageRequired": "Notification permission is required, Please allow notification permission from setting."
      });

      await FlutterCallkitIncoming.canUseFullScreenIntent();
      await FlutterCallkitIncoming.requestFullIntentPermission();
      FlutterCallkitIncoming.unsilenceEvents();
      FlutterCallkitIncoming.showCallkitIncoming(callKitParams);
      _callTimeoutTimer?.cancel();
      _callTimeoutTimer = Timer(const Duration(seconds: 30), () async {
        await FlutterCallkitIncoming.endCall(callId);
        await FlutterCallkitIncoming.endAllCalls();
        await FlutterCallkitIncoming.showMissCallNotification(callKitParams);

        _callTimeoutTimer?.cancel();
        _callTimeoutTimer = null;
      });
    } catch (e, stackTrace) {
      _callTimeoutTimer?.cancel();
      _callTimeoutTimer = null;
    }
  }
}