Line data    Source code

       1              : // Copyright 2026 The terCAD team. All rights reserved.
       2              : // Use of this source code is governed by a CC BY-NC-ND 4.0 license that can be found in the LICENSE file.
       3              : 
       4              : import 'package:app_finance/_classes/integration/integration_record.dart';
       5              : import 'package:app_finance/_classes/structure/interface_app_data.dart';
       6              : import 'package:fints/fints.dart';
       7              : import 'package:uuid/uuid.dart';
       8              : 
       9              : typedef FinTsImportResult = IntegrationImportResult;
      10              : 
      11              : class FinTsImporter {
      12              :   final bool Function(String uuid) exists;
      13              :   final void Function(InterfaceAppData item, String uuid) add;
      14              : 
      15            0 :   const FinTsImporter({required this.exists, required this.add});
      16              : 
      17            0 :   FinTsImportResult run({
      18              :     required String accountKey,
      19              :     required List<Transaction> transactions,
      20              :     required String account,
      21              :     required String category,
      22              :   }) {
      23              :     var added = 0;
      24              :     var skipped = 0;
      25              :     var pending = 0;
      26            0 :     final occurrences = <String, int>{};
      27            0 :     for (final transaction in transactions) {
      28            0 :       if (transaction.isPending) {
      29            0 :         pending++;
      30              :         continue;
      31              :       }
      32            0 :       final fingerprint = _fingerprint(accountKey, transaction);
      33            0 :       final index = occurrences.update(fingerprint, (value) => value + 1, ifAbsent: () => 0);
      34            0 :       final uuid = const Uuid().v5(Namespace.url.value, 'fints:$fingerprint#$index');
      35            0 :       if (exists(uuid)) {
      36            0 :         skipped++;
      37              :         continue;
      38              :       }
      39            0 :       add(convert(transaction, account: account, category: category), uuid);
      40            0 :       added++;
      41              :     }
      42              :     return (added: added, skipped: skipped, pending: pending);
      43              :   }
      44              : 
      45            0 :   static InterfaceAppData convert(Transaction transaction, {required String account, required String category}) =>
      46            0 :       IntegrationRecord.toAppData(
      47            0 :         amount: transaction.amount.value,
      48            0 :         currency: transaction.amount.currency,
      49            0 :         date: transaction.bookingDate ?? transaction.valueDate,
      50            0 :         title: getTitle(transaction),
      51              :         account: account,
      52              :         category: category,
      53              :       );
      54              : 
      55            0 :   static String getTitle(Transaction transaction) {
      56            0 :     final parts = [transaction.counterpartyName, transaction.purpose]
      57            0 :         .map((e) => e?.trim() ?? '')
      58            0 :         .where((e) => e.isNotEmpty)
      59            0 :         .toList();
      60            0 :     return parts.isNotEmpty ? parts.join(' — ') : (transaction.bookingText?.trim() ?? '');
      61              :   }
      62              : 
      63            0 :   static String _fingerprint(String accountKey, Transaction transaction) {
      64            0 :     final reference = transaction.endToEndId ?? transaction.bankReference ?? transaction.customerReference ?? '';
      65            0 :     return [
      66              :       accountKey,
      67            0 :       transaction.valueDate.toIso8601String().substring(0, 10),
      68            0 :       transaction.amount.minorUnits,
      69            0 :       transaction.amount.scale,
      70            0 :       transaction.amount.currency,
      71            0 :       reference == 'NOTPROVIDED' ? '' : reference,
      72            0 :       transaction.counterpartyIban ?? '',
      73            0 :       transaction.purpose ?? '',
      74            0 :     ].join('|');
      75              :   }
      76              : }