| 1 | import 'package:mobx/mobx.dart'; |
| 2 | import 'package:cw_core/transaction_info.dart'; |
| 3 | |
| 4 | abstract class TransactionHistoryBase<TransactionType extends TransactionInfo> { |
| 5 | TransactionHistoryBase() : transactions = ObservableMap<String, TransactionType>(); |
| 6 | |
| 7 | @observable |
| 8 | ObservableMap<String, TransactionType> transactions; |
| 9 | |
| 10 | Future<void> save(); |
| 11 | |
| 12 | void addOne(TransactionType transaction); |
| 13 | |
| 14 | void addMany(Map<String, TransactionType> transactions); |
| 15 | |
| 16 | void clear() => transactions.clear(); |
| 17 | |
| 18 | // bool _isUpdating; |
| 19 | |
| 20 | // @action |
| 21 | // Future<void> update() async { |
| 22 | // if (_isUpdating) { |
| 23 | // return; |
| 24 | // } |
| 25 | |
| 26 | // try { |
| 27 | // _isUpdating = true; |
| 28 | // final _transactions = await fetchTransactions(); |
| 29 | // transactions.keys |
| 30 | // .toSet() |
| 31 | // .difference(_transactions.keys.toSet()) |
| 32 | // .forEach((k) => transactions.remove(k)); |
| 33 | // _transactions.forEach((key, value) => transactions[key] = value); |
| 34 | // _isUpdating = false; |
| 35 | // } catch (e) { |
| 36 | // _isUpdating = false; |
| 37 | // rethrow; |
| 38 | // } |
| 39 | // } |
| 40 | |
| 41 | // void updateAsync({void Function() onFinished}) { |
| 42 | // fetchTransactionsAsync( |
| 43 | // (transaction) => transactions[transaction.id] = transaction, |
| 44 | // onFinished: onFinished); |
| 45 | // } |
| 46 | |
| 47 | // void fetchTransactionsAsync( |
| 48 | // void Function(TransactionType transaction) onTransactionLoaded, |
| 49 | // {void Function() onFinished}); |
| 50 | |
| 51 | // Future<Map<String, TransactionType>> fetchTransactions(); |
| 52 | } |