import 'package:flutter/foundation.dart';
import 'package:robo_advisory/models/transaction.dart';
import 'package:robo_advisory/repository/transaction.repository.dart';

class TransactionProvider with ChangeNotifier {
  String _selectedCategory = "All";
  List<Transaction> _transactionsData;
  List<Transaction> _transactionsList;

  List<Transaction> get transactionList {
    if (_selectedCategory != 'All') {
      return _transactionsList = _transactionsData
          .where((transaction) =>
              transaction.category.name == _selectedCategory.toLowerCase())
          .toList();
    } else {
      return _transactionsList = _transactionsData;
    }
  }

  void setTransactionsList(List<Transaction> transactions) {
    _transactionsData = transactions;
    _transactionsList = transactions;
    notifyListeners();
  }

  String get selectedCategory => _selectedCategory;

  void setSelectedCategory(String category) {
    _selectedCategory = category;
    print(_selectedCategory);
    notifyListeners();
  }

  Future<List<Transaction>> loadTransactions() async {
    return (await TransactionRepository.loadTransactions() as List)
        .map((i) => Transaction.fromJson(i))
        .toList();
  }
}