75 lines
2.7 KiB
Dart
75 lines
2.7 KiB
Dart
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
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import 'package:timezone/timezone.dart' as tz;
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import 'package:timezone/data/latest.dart' as tz_data;
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import '../database/database_helper.dart';
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class NotificationService {
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static final NotificationService instance = NotificationService._init();
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final FlutterLocalNotificationsPlugin _plugin = FlutterLocalNotificationsPlugin();
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bool _initialized = false;
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NotificationService._init();
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Future<void> init() async {
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if (_initialized) return;
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tz_data.initializeTimeZones();
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const androidSettings = AndroidInitializationSettings('@mipmap/ic_launcher');
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const settings = InitializationSettings(android: androidSettings);
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await _plugin.initialize(settings);
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_initialized = true;
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}
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Future<void> scheduleRecordatorios() async {
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await _plugin.cancelAll();
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final db = DatabaseHelper.instance;
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final facturas = await db.getFacturas(estado: 'Pendiente');
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final config = await db.getConfiguracion();
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final diasStr = config?.diasRecordatorio ?? '7,3,1,0';
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final dias = diasStr.split(',').map((e) => int.tryParse(e.trim()) ?? 0).toList();
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for (final factura in facturas) {
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final vencimiento = DateTime.tryParse(factura.fechaVencimiento);
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if (vencimiento == null) continue;
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for (final dia in dias) {
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final notifDate = vencimiento.subtract(Duration(days: dia));
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final now = DateTime.now();
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if (notifDate.isAfter(now) || notifDate.day == now.day) {
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await _scheduleNotification(
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id: factura.id! * 10 + dia,
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title: dia == 0 ? 'Factura vence hoy' : 'Recordatorio de factura',
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body: 'La factura vence en $dia día(s)',
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scheduledDate: notifDate,
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);
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}
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}
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}
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}
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Future<void> _scheduleNotification({
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required int id,
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required String title,
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required String body,
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required DateTime scheduledDate,
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}) async {
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const androidDetails = AndroidNotificationDetails(
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'hogarcontrol_recordatorios',
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'Recordatorios de facturas',
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channelDescription: 'Notificaciones de recordatorio de pago',
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importance: Importance.high,
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priority: Priority.high,
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);
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const details = NotificationDetails(android: androidDetails);
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final tzDate = tz.TZDateTime.from(scheduledDate, tz.local);
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await _plugin.zonedSchedule(
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id,
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title,
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body,
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tzDate,
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details,
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androidScheduleMode: AndroidScheduleMode.inexactAllowWhileIdle,
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matchDateTimeComponents: DateTimeComponents.dayOfMonthAndTime,
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uiLocalNotificationDateInterpretation: UILocalNotificationDateInterpretation.absoluteTime,
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);
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}
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}
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