import 'package:test/test.dart';
import 'package:practice_engine/models/deck_config.dart';

void main() {
  group('DeckConfig', () {
    test('has default values', () {
      const config = DeckConfig();

      expect(config.requiredConsecutiveCorrect, equals(3));
      expect(config.defaultAttemptSize, equals(10));
      expect(config.priorityIncreaseOnIncorrect, equals(5));
      expect(config.priorityDecreaseOnCorrect, equals(2));
      expect(config.immediateFeedbackEnabled, equals(true));
    });

    test('can be created with custom values', () {
      const config = DeckConfig(
        requiredConsecutiveCorrect: 5,
        defaultAttemptSize: 20,
        priorityIncreaseOnIncorrect: 10,
        priorityDecreaseOnCorrect: 3,
        immediateFeedbackEnabled: false,
      );

      expect(config.requiredConsecutiveCorrect, equals(5));
      expect(config.defaultAttemptSize, equals(20));
      expect(config.priorityIncreaseOnIncorrect, equals(10));
      expect(config.priorityDecreaseOnCorrect, equals(3));
      expect(config.immediateFeedbackEnabled, equals(false));
    });

    test('copyWith creates new config with updated fields', () {
      const config = DeckConfig();
      final updated = config.copyWith(
        requiredConsecutiveCorrect: 4,
        immediateFeedbackEnabled: false,
      );

      expect(updated.requiredConsecutiveCorrect, equals(4));
      expect(updated.defaultAttemptSize, equals(config.defaultAttemptSize));
      expect(updated.immediateFeedbackEnabled, equals(false));
    });

    test('equality works correctly', () {
      const config1 = DeckConfig();
      const config2 = DeckConfig();
      const config3 = DeckConfig(requiredConsecutiveCorrect: 5);

      expect(config1, equals(config2));
      expect(config1, isNot(equals(config3)));
    });
  });
}