import 'package:flutter/foundation.dart';

import 'package:pshared/models/payment/source.dart';
import 'package:pshared/provider/ledger.dart';
import 'package:pshared/provider/payment/wallets.dart';

class PaymentSourceProvider extends ChangeNotifier {
  List<PaymentSource> _sources = const [];

  List<PaymentSource> get sources => _sources;

  void update(
    WalletsProvider walletsProvider,
    LedgerAccountsProvider ledgerProvider,
  ) {
    final nextSources = <PaymentSource>[
      ...walletsProvider.wallets.map(PaymentSource.wallet),
      ...ledgerProvider.accounts.map(PaymentSource.ledger),
    ];

    final currentKeys = _sources
        .map((source) => source.key)
        .toList(growable: false);
    final nextKeys = nextSources
        .map((source) => source.key)
        .toList(growable: false);

    if (listEquals(currentKeys, nextKeys)) return;

    _sources = nextSources;
    notifyListeners();
  }
}