import 'package:eatvio_app/features/feed/models/view_model.dart';
import 'package:flutter_test/flutter_test.dart';

void main() {
  group('ViewModel', () {
    test('fromJson parses all fields correctly', () {
      final json = {
        'type': 'diet',
        'ids': [1, 2, 3],
        'slugs': ['diet-1', 'diet-2'],
      };

      final model = ViewModel.fromJson(json);

      expect(model.type, 'diet');
      expect(model.ids, [1, 2, 3]);
      expect(model.slugs, ['diet-1', 'diet-2']);
    });

    test('fromJson handles null optional fields', () {
      final json = {
        'type': 'plan',
      };

      final model = ViewModel.fromJson(json);

      expect(model.type, 'plan');
      expect(model.ids, isNull);
      expect(model.slugs, isNull);
    });

    test('toJson serializes all fields correctly', () {
      final model = ViewModel(
        type: 'recipe',
        ids: [1, 2],
        slugs: ['recipe-1'],
      );

      final json = model.toJson();

      expect(json['type'], 'recipe');
      expect(json['ids'], [1, 2]);
      expect(json['slugs'], ['recipe-1']);
    });

    test('toJson omits null fields', () {
      final model = ViewModel(type: 'diet');

      final json = model.toJson();

      expect(json['type'], 'diet');
      expect(json.containsKey('ids'), isTrue);
      expect(json.containsKey('slugs'), isTrue);
    });
  });
}