import 'package:flutter/material.dart';
import 'package:hive/hive.dart';
import 'package:kzeduca_app/models/transaction.dart' as app;
import 'package:kzeduca_app/services/hive_service.dart';
import 'package:kzeduca_app/services/user_state_service.dart';
import 'package:provider/provider.dart';

class TransactionListNotifier extends ChangeNotifier {
  List<app.Transaction> _transactions = [];

  List<app.Transaction> get transactions => _transactions;

  Future<void> loadTransactions() async {
    _transactions = await HiveService().getTransactions();
    notifyListeners();
  }

  Future<void> addTransaction(app.Transaction transaction, {BuildContext? context}) async {
    await HiveService().insertTransaction(transaction);
    await loadTransactions();
    if (context != null) {
      final userStateService = Provider.of<UserStateService>(context, listen: false);
      await userStateService.recalculateBalanceFromHive();
    }
  }

  Future<void> removeTransaction(int index, {BuildContext? context}) async {
    // Remover a transação do Hive
    final box = Hive.box<app.Transaction>(HiveService.transactionsBox);
    final key = box.keyAt(index);
    await box.delete(key);
    await loadTransactions();
    if (context != null) {
      final userStateService = Provider.of<UserStateService>(context, listen: false);
      await userStateService.recalculateBalanceFromHive();
    }
  }
}