import 'VideoCards.dart';

class VideoCardsManager {
  final List<VideoCards> _videocards = [];

  void addVideoCards(VideoCards videocards) {
    _videocards.add(videocards);
  }

  List<VideoCards> filterVideoCardsByCategory(VideoCardsCategory category) {
    return _videocards.where((videocards) => videocards.category == category).toList();
  }

  double calculateTotalAmount() {
    return _videocards.fold(0.0, (sum,videocards) => sum + videocards.price);
  }

  Future<void> clearVideoCards() async {
    await Future.delayed(Duration(seconds: 3));
    _videocards.clear();
    print('Список чист!');
  }
}