import 'package:flutter_local_notifications/flutter_local_notifications.dart';

/// A thin wrapper around `flutter_local_notifications` that centralizes the
/// plugin instance and provides easy initialization/show helpers.
class NotificationService {
  NotificationService._();

  static final FlutterLocalNotificationsPlugin _plugin =
      FlutterLocalNotificationsPlugin();

  /// Call during app startup, after any necessary permissions have been
  /// granted.  The callback receives a [NotificationResponse] when the user
  /// taps the alert.
  static Future<void> initialize({
    void Function(NotificationResponse)? onDidReceiveNotificationResponse,
  }) async {
    const androidSettings = AndroidInitializationSettings(
      '@mipmap/ic_launcher',
    );
    const iosSettings = DarwinInitializationSettings();

    await _plugin.initialize(
      settings: const InitializationSettings(
        android: androidSettings,
        iOS: iosSettings,
      ),
      onDidReceiveNotificationResponse: onDidReceiveNotificationResponse,
    );
  }

  /// Show a simple notification immediately.
  static Future<void> show({
    required int id,
    required String title,
    required String body,
    String? payload,
  }) async {
    const androidDetails = AndroidNotificationDetails(
      'default_channel',
      'General',
      importance: Importance.high,
      priority: Priority.high,
    );
    const iosDetails = DarwinNotificationDetails();
    await _plugin.show(
      id: id,
      title: title,
      body: body,
      notificationDetails: const NotificationDetails(
        android: androidDetails,
        iOS: iosDetails,
      ),
      payload: payload,
    );
  }
}