Current File : //home/tradevaly/public_html/fresh/lib/helper/notification_helper.dart

import 'dart:io';

import 'package:dio/dio.dart';
import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:flutter/material.dart';
import 'package:flutter_grocery/main.dart';
import 'package:flutter_grocery/utill/app_constants.dart';
import 'package:flutter_grocery/view/screens/order/order_details_screen.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:path_provider/path_provider.dart';

class NotificationHelper {

  static Future<void> initialize(FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin) async {
    var androidInitialize = new AndroidInitializationSettings('notification_icon');
    var iOSInitialize = new IOSInitializationSettings();
    var initializationsSettings = new InitializationSettings(android: androidInitialize, iOS: iOSInitialize);
    flutterLocalNotificationsPlugin.initialize(initializationsSettings, onSelectNotification: (String payload) async {
      try{
        if(payload != null && payload.isNotEmpty) {
          MyApp.navigatorKey.currentState.push(
              MaterialPageRoute(builder: (context) => OrderDetailsScreen(orderModel: null, orderId: int.parse(payload))));
        }
      }catch (e) {}
      return;
    });

    FirebaseMessaging.onMessage.listen((RemoteMessage message) {
      print("onMessage: ${message.notification.title}/${message.notification.body}/${message.notification.titleLocKey}");
      showNotification(message, flutterLocalNotificationsPlugin, false);
    });
    FirebaseMessaging.onMessageOpenedApp.listen((RemoteMessage message) {
      print("onOpenApp: ${message.notification.title}/${message.notification.body}/${message.notification.titleLocKey}");
      try{
        if(message.notification.titleLocKey != null && message.notification.titleLocKey.isNotEmpty) {
          MyApp.navigatorKey.currentState.push(
              MaterialPageRoute(builder: (context) => OrderDetailsScreen(orderModel: null, orderId: int.parse(message.notification.titleLocKey))));
        }
      }catch (e) {}
    });
  }

  static Future<void> showNotification(RemoteMessage message, FlutterLocalNotificationsPlugin fln, bool data) async {
    String _title;
    String _body;
    String _orderID;
    String _image;
    if(data) {
      _title = message.data['title'];
      _body = message.data['body'];
      _orderID = message.data['order_id'];
      _image = (message.data['image'] != null && message.data['image'].isNotEmpty)
          ? message.data['image'].startsWith('http') ? message.data['image']
          : '${AppConstants.BASE_URL}/storage/app/public/notification/${message.data['image']}' : null;
    }else {
      _title = message.notification.title;
      _body = message.notification.body;
      _orderID = message.notification.titleLocKey;
      if(Platform.isAndroid) {
        _image = (message.notification.android.imageUrl != null && message.notification.android.imageUrl.isNotEmpty)
            ? message.notification.android.imageUrl.startsWith('http') ? message.notification.android.imageUrl
            : '${AppConstants.BASE_URL}/storage/app/public/notification/${message.notification.android.imageUrl}' : null;
      }else if(Platform.isIOS) {
        _image = (message.notification.apple.imageUrl != null && message.notification.apple.imageUrl.isNotEmpty)
            ? message.notification.apple.imageUrl.startsWith('http') ? message.notification.apple.imageUrl
            : '${AppConstants.BASE_URL}/storage/app/public/notification/${message.notification.apple.imageUrl}' : null;
      }
    }

    if(_image != null && _image.isNotEmpty) {
      try{
        await showBigPictureNotificationHiddenLargeIcon(_title, _body, _orderID, _image, fln);
      }catch(e) {
        await showBigTextNotification(_title, _body, _orderID, fln);
      }
    }else {
      await showBigTextNotification(_title, _body, _orderID, fln);
    }
  }

  static Future<void> showTextNotification(String title, String body, String orderID, FlutterLocalNotificationsPlugin fln) async {
    const AndroidNotificationDetails androidPlatformChannelSpecifics = AndroidNotificationDetails(
      'your channel id', 'your channel name', playSound: true,
      importance: Importance.max, priority: Priority.max, sound: RawResourceAndroidNotificationSound('notification'),
    );
    const NotificationDetails platformChannelSpecifics = NotificationDetails(android: androidPlatformChannelSpecifics);
    await fln.show(0, title, body, platformChannelSpecifics, payload: orderID);
  }

  static Future<void> showBigTextNotification(String title, String body, String orderID, FlutterLocalNotificationsPlugin fln) async {
    BigTextStyleInformation bigTextStyleInformation = BigTextStyleInformation(
      body, htmlFormatBigText: true,
      contentTitle: title, htmlFormatContentTitle: true,
    );
    AndroidNotificationDetails androidPlatformChannelSpecifics = AndroidNotificationDetails(
      'your channel id', 'your channel name', importance: Importance.max,
      styleInformation: bigTextStyleInformation, priority: Priority.max, playSound: true,
      sound: RawResourceAndroidNotificationSound('notification'),
    );
    NotificationDetails platformChannelSpecifics = NotificationDetails(android: androidPlatformChannelSpecifics);
    await fln.show(0, title, body, platformChannelSpecifics, payload: orderID);
  }

  static Future<void> showBigPictureNotificationHiddenLargeIcon(String title, String body, String orderID, String image, FlutterLocalNotificationsPlugin fln) async {
    final String largeIconPath = await _downloadAndSaveFile(image, 'largeIcon');
    final String bigPicturePath = await _downloadAndSaveFile(image, 'bigPicture');
    final BigPictureStyleInformation bigPictureStyleInformation = BigPictureStyleInformation(
      FilePathAndroidBitmap(bigPicturePath), hideExpandedLargeIcon: true,
      contentTitle: title, htmlFormatContentTitle: true,
      summaryText: body, htmlFormatSummaryText: true,
    );
    final AndroidNotificationDetails androidPlatformChannelSpecifics = AndroidNotificationDetails(
      'your channel id', 'your channel name',
      largeIcon: FilePathAndroidBitmap(largeIconPath), priority: Priority.max, playSound: true,
      styleInformation: bigPictureStyleInformation, importance: Importance.max,
      sound: RawResourceAndroidNotificationSound('notification'),
    );
    final NotificationDetails platformChannelSpecifics = NotificationDetails(android: androidPlatformChannelSpecifics);
    await fln.show(0, title, body, platformChannelSpecifics, payload: orderID);
  }

  static Future<String> _downloadAndSaveFile(String url, String fileName) async {
    final Directory directory = await getApplicationDocumentsDirectory();
    final String filePath = '${directory.path}/$fileName';
    final Response response = await Dio().get(url, options: Options(responseType: ResponseType.bytes));
    final File file = File(filePath);
    await file.writeAsBytes(response.data);
    return filePath;
  }

}

Future<dynamic> myBackgroundMessageHandler(RemoteMessage message) async {
  print("onBackground: ${message.notification.title}/${message.notification.body}/${message.notification.titleLocKey}");
}