import 'package:collection/collection.dart';

import 'package:pshared/data/mapper/payment/method.dart';
import 'package:pshared/models/payment/methods/type.dart';
import 'package:pshared/provider/organizations.dart';
import 'package:pshared/provider/recipient/provider.dart';
import 'package:pshared/provider/template.dart';
import 'package:pshared/service/recipient/pmethods.dart';


class PaymentMethodsProvider extends GenericProvider<PaymentMethod> {
  late OrganizationsProvider _organizations;

  PaymentMethodsProvider() : super(service: PaymentMethodService.basicService);

  List<PaymentMethod> get methods => List<PaymentMethod>.unmodifiable(items.toList()..sort((a, b) => a.storable.createdAt.compareTo(b.storable.createdAt))); 

  void updateProviders(OrganizationsProvider organizations, RecipientsProvider recipients) {
    if (recipients.currentObject != null) loadMethods(organizations, recipients.currentObject?.id);
  }

  Future<void> loadMethods(OrganizationsProvider organizations, String? recipientRef) async {
    _organizations = organizations;
    if (_organizations.isOrganizationSet && (recipientRef != null)) {
      return load(_organizations.current.id, recipientRef);
    }
  }

  // void reorderMethods(int oldIndex, int newIndex) {
  //   if (newIndex > oldIndex) newIndex--;
  //   final item = _methods.removeAt(oldIndex);
  //   _methods.insert(newIndex, item);
  //   notifyListeners();
  // }

  PaymentMethod? get main => methods.firstWhereOrNull((m) => m.isMain);

  Future<void> updateMethod(PaymentMethod method) async => update(method.toDTO().toJson());

  Future<void> setArchivedMethod({
    required PaymentMethod method, 
    required bool newIsArchived, 
  }) async => setArchived(
    organizationRef: _organizations.current.id,
    objectRef: method.id,
    newIsArchived: newIsArchived,
    cascade: true,
  );


  Future<void> makeMain(PaymentMethod method) {
    // TODO: create separate backend method to manage main payment method
    final updates = <Future<void>>[];
    final currentMain = main;
    if (currentMain != null) {
      updates.add(updateMethod(currentMain.copyWith(isMain: false)));
    }
    updates.add(updateMethod(method.copyWith(isMain: true)));
    return Future.wait(updates).then((_) => null);
  }
}