cloudsolutions-atoms/lib/controllers/notification/firebase_notification_manger.dart

import 'dart:convert';
import 'dart:io';

import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:flutter/material.dart';
import 'package:test_sa/controllers/notification/notification_manger.dart';
import 'package:test_sa/models/all_requests_and_count_model.dart';
import 'package:test_sa/models/device/asset_transfer.dart';
import 'package:test_sa/models/new_models/gas_refill_model.dart';
import 'package:test_sa/models/service_request/service_request.dart';
import 'package:test_sa/views/pages/device_transfer/device_transfer_details.dart';
import 'package:test_sa/views/pages/user/gas_refill/gas_refill_details.dart';
import 'package:test_sa/views/pages/user/ppm/ppm_details_page.dart';
import 'package:test_sa/views/pages/user/requests/service_request_details.dart';

@pragma('vm:entry-point')
Future<void> firebaseMessagingBackgroundHandler(RemoteMessage message) async {}

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

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

    if (settings.authorizationStatus == AuthorizationStatus.authorized) {
      try {
        token = await messaging.getToken();
      } catch (ex) {}
    }
    print("pushToken:$token");
    return token!;
  }

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

      if (messageData["requestType"] == "Service request to engineer") {
        serviceClass = ServiceRequestDetailsPage(serviceRequest: ServiceRequest(id: messageData["requestNumber"].toString()));
      } 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: AssetTransfer(id: int.parse(messageData["requestNumber"].toString())));
      } else if (messageData["requestType"] == "PPM") {
        serviceClass = PpmDetailsPage(
            request: RequestsDetails(
          id: int.parse(messageData["requestNumber"].toString()),
          priority: messageData["priority"],
        ));
      }
      // else if (data["requestType"] == "WorkOrder") {
      //
      // }

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

  static initialized(BuildContext context) async {
    //await Firebase.initializeApp();
    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) {
      if (Platform.isAndroid) {
        NotificationManger.showNotification(
            title: message.notification?.title ?? "", subtext: message.notification?.body ?? "", hashcode: int.tryParse("1234" ?? "") ?? 1, payload: json.encode(message.data), context: context);
      }

      return;
    });
    FirebaseMessaging.onMessageOpenedApp.listen((RemoteMessage message) {
      handleMessage(context, message.data);
    });
    FirebaseMessaging.onBackgroundMessage(firebaseMessagingBackgroundHandler);
  }
}