feat: add transaction expiry service

lib/_core/service/transaction_expiry_service.dart

@@ -0,0 +1,54 @@
+import 'dart:async';
+import 'dart:developer';
+import '../../data/repositories/transaction_repository_impl.dart';
+
+class TransactionExpiryService {
+  static final TransactionExpiryService _instance = TransactionExpiryService._internal();
+  late TransactionRepositoryImpl _repository;
+  Timer? _timer;
+  bool _isRunning = false;
+
+  factory TransactionExpiryService() => _instance;
+
+  TransactionExpiryService._internal();
+
+  void initialize(TransactionRepositoryImpl repository) {
+    _repository = repository;
+    _startTimer();
+    log('[TransactionExpiryService] Service diinisialisasi');
+  }
+
+  void _startTimer() {
+    if (_isRunning) return;
+
+    _timer?.cancel();
+    _isRunning = true;
+
+    _timer = Timer.periodic(Duration(days: 1), (_) {
+      _checkExpiredTransactions();
+    });
+
+    _checkExpiredTransactions();
+
+    log('[TransactionExpiryService] Timer dimulai, interval: 1 day');
+  }
+
+  Future<void> _checkExpiredTransactions() async {
+    log('[TransactionExpiryService] Memulai pengecekan transaksi kedaluwarsa...');
+    try {
+      await _repository.checkAndCancelExpiredTransactions();
+      log('[TransactionExpiryService] Pengecekan transaksi kedaluwarsa selesai');
+    } catch (e) {
+      log('[TransactionExpiryService] Error saat memeriksa transaksi kedaluwarsa: $e');
+    }
+  }
+
+  void dispose() {
+    _timer?.cancel();
+    _timer = null;
+    _isRunning = false;
+    log('[TransactionExpiryService] Service dihentikan');
+  }
+
+  bool get isRunning => _isRunning;
+}