import 'package:flutter_test/flutter_test.dart';
import 'package:kooltab2/models/product.dart';

void main() {
  group('Product', () {
    group('isLowStock', () {
      test('returns true when stock equals threshold', () {
        const product = Product(
          id: '1',
          name: 'Test',
          category: 'Drinks',
          stockQuantity: 5,
          lowStockThreshold: 5,
          priceInCents: 100,
        );

        expect(product.isLowStock, true);
      });

      test('returns true when stock is below threshold', () {
        const product = Product(
          id: '1',
          name: 'Test',
          category: 'Drinks',
          stockQuantity: 3,
          lowStockThreshold: 5,
          priceInCents: 100,
        );

        expect(product.isLowStock, true);
      });

      test('returns false when stock is above threshold', () {
        const product = Product(
          id: '1',
          name: 'Test',
          category: 'Drinks',
          stockQuantity: 10,
          lowStockThreshold: 5,
          priceInCents: 100,
        );

        expect(product.isLowStock, false);
      });
    });

    group('formattedPrice', () {
      test('formats price with euro symbol and 2 decimals', () {
        const product = Product(
          id: '1',
          name: 'Test',
          category: 'Drinks',
          stockQuantity: 10,
          lowStockThreshold: 5,
          priceInCents: 1234,
        );

        expect(product.formattedPrice, '€12.34');
      });

      test('formats zero price correctly', () {
        const product = Product(
          id: '1',
          name: 'Test',
          category: 'Drinks',
          stockQuantity: 10,
          lowStockThreshold: 5,
          priceInCents: 0,
        );

        expect(product.formattedPrice, '€0.00');
      });

      test('formats whole euros correctly', () {
        const product = Product(
          id: '1',
          name: 'Test',
          category: 'Drinks',
          stockQuantity: 10,
          lowStockThreshold: 5,
          priceInCents: 500,
        );

        expect(product.formattedPrice, '€5.00');
      });
    });

    group('copyWith', () {
      test('creates copy with updated fields', () {
        const original = Product(
          id: '1',
          name: 'Original',
          category: 'Drinks',
          stockQuantity: 10,
          lowStockThreshold: 5,
          priceInCents: 100,
        );

        final copy = original.copyWith(name: 'Updated', stockQuantity: 20);

        expect(copy.name, 'Updated');
        expect(copy.stockQuantity, 20);
        expect(copy.id, '1');
        expect(copy.category, 'Drinks');
      });

      test('preserves original values when not specified', () {
        const original = Product(
          id: '1',
          name: 'Test',
          category: 'Food',
          stockQuantity: 15,
          lowStockThreshold: 3,
          priceInCents: 750,
          imagePath: '/path/to/image.jpg',
          active: false,
        );

        final copy = original.copyWith();

        expect(copy.id, '1');
        expect(copy.name, 'Test');
        expect(copy.category, 'Food');
        expect(copy.stockQuantity, 15);
        expect(copy.lowStockThreshold, 3);
        expect(copy.priceInCents, 750);
        expect(copy.imagePath, '/path/to/image.jpg');
        expect(copy.active, false);
      });
    });
  });
}