prosappco/lib/local_notifications/local_notifications.dart

import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:http/http.dart' as http;
import 'dart:convert';
import 'package:prosappco/constansts.dart' show API_BASE_URL;

class LocalNotifications {
  static Future<void> requestPermissionLocalNotifications() async {
    final flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();

    await flutterLocalNotificationsPlugin
        .resolvePlatformSpecificImplementation<
            AndroidFlutterLocalNotificationsPlugin>()
        ?.requestNotificationsPermission();
  }
 
  static Future<void> initializeLocalNotifications() async {
    final flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();

    const initializationSettingsAndroid =
        AndroidInitializationSettings('app_icon');

  const DarwinInitializationSettings initializationSettingsIOS =
      DarwinInitializationSettings(
    requestAlertPermission: true,
    requestBadgePermission: true,
    requestSoundPermission: true,
  );

    const initializationSettings = InitializationSettings(
      android: initializationSettingsAndroid,
      iOS: initializationSettingsIOS,
    );

    await flutterLocalNotificationsPlugin.initialize(
      initializationSettings,
    );
  }

  static void showLocalNotification({
    required int id,
    String? title,
    String? body,
    String? data,
  }) {
    const androidDetails = AndroidNotificationDetails(
      'channel_id',
      'channel_name',
      importance: Importance.max,
      priority: Priority.high,
      playSound: true,
      sound: RawResourceAndroidNotificationSound('notification'),
    );


    // IOSNotificationDetails --> DarwinNotificationDetails
  const DarwinNotificationDetails iOSNotificationDetails =
      DarwinNotificationDetails(
    presentAlert: true,
    presentBadge: true,
    presentSound: true,
  );
  const NotificationDetails notificationDetails = NotificationDetails(
      android: androidDetails, iOS: iOSNotificationDetails);

    final flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();

    flutterLocalNotificationsPlugin.show(
      id,
      title,
      body,
      notificationDetails,
      payload: data,
    );
  }

  static Future<void> sendPushNotification(
      String token, String title, String body) async {
    try {
      http.Response response = await http.post(
        Uri.parse('$API_BASE_URL/notifications/send'),
        headers: <String, String>{
          'Content-Type': 'application/json; charset=UTF-8',
        },
        body: jsonEncode(
          <String, dynamic>{
            'title': title,
            'body': body,
            'to': token,
          },
        ),
      );
      response;
    } catch (e) {
      rethrow;
    }
  }
}