using Avalonia;
using Avalonia.Headless;
using TovarV2;
using Bitmap = Avalonia.Media.Imaging.Bitmap;

namespace TestTovarV2
{
    [TestFixture]
    public class EditTovarTests
    {
        private EditTovar _editTovarWindow;
        public Bitmap _testBitmap;

        [OneTimeSetUp]
        public void OneTimeSetup()
        {
            AppBuilder.Configure<App>()
                .UseHeadless(new AvaloniaHeadlessPlatformOptions())
                .SetupWithoutStarting();

            var emptyPngPath = Path.Combine(TestContext.CurrentContext.TestDirectory, "Assets", "picture.png");
            _testBitmap = new Bitmap(emptyPngPath);
        }

        [OneTimeTearDown]
        public void OneTimeTearDown()
        {
            _testBitmap?.Dispose();
        }

        [SetUp]
        public void Setup()
        {
            ListPr.ListProd.Clear();
            ListPr.ListProd.Add(new Product
            {
                nameProd = "TestProduct",
                priceProd = 1,
                quantityProd = 2,
                bitmapProd = _testBitmap
            });
            ListPr.productForEdit = 0;

            _editTovarWindow = new EditTovar();
            _editTovarWindow.Show();
        }

        [TearDown]
        public void TearDown()
        {
            _editTovarWindow.Close();
        }
        
        [Test]
        public void IsOpenWindow_ShouldReturnTrue_WhenItOpened()
        {
            Assert.IsTrue(EditTovar.IsOpen);
            _editTovarWindow.Close();
        }
        
        [Test]
        public void IsOpenWindow_ShouldReturnFalse_WhenItClosed()
        {
            Assert.IsTrue(EditTovar.IsOpen);
            _editTovarWindow.Close();
            Assert.IsFalse(EditTovar.IsOpen);
        }

        [Test]
        public void CompareProductData_ShouldReturnTrue_WhenCorrectData()
        {
            Assert.AreEqual("TestProduct", _editTovarWindow.GetNameTov.Text);
            Assert.AreEqual("1", _editTovarWindow.GetPriceTov.Text);
            Assert.AreEqual("2", _editTovarWindow.GetQuantityTov.Text);
            Assert.AreEqual(_testBitmap, _editTovarWindow.GetImagePath.Source);
        }

        [Test]
        public void EditOkClick_ShouldReturnUpdatedProduct_UpdateProductInList()
        {
            _editTovarWindow.GetNameTov.Text = "NewTestProduct";
            _editTovarWindow.GetPriceTov.Text = "10";
            _editTovarWindow.GetQuantityTov.Text = "20";
            _editTovarWindow.bitmapToBind = _testBitmap;

            _editTovarWindow.EditOk_Click(null, null);

            var editedProduct = ListPr.ListProd[ListPr.productForEdit];
            Assert.AreEqual("NewTestProduct", editedProduct.nameProd);
            Assert.AreEqual(10, editedProduct.priceProd);
            Assert.AreEqual(20, editedProduct.quantityProd);
            Assert.AreEqual(_testBitmap, editedProduct.bitmapProd);
        }
        
        [Test]
        public void EditOkClick_ShouldReturnUpdatedProduct_WhenNameIsEmpty()
        {
            _editTovarWindow.GetNameTov.Text = "";
            _editTovarWindow.GetPriceTov.Text = "10";
            _editTovarWindow.GetQuantityTov.Text = "20";
            _editTovarWindow.bitmapToBind = _testBitmap;

            _editTovarWindow.EditOk_Click(null, null);

            var editedProduct = ListPr.ListProd[ListPr.productForEdit];
            Assert.AreEqual("", editedProduct.nameProd);
            Assert.AreEqual(10, editedProduct.priceProd);
            Assert.AreEqual(20, editedProduct.quantityProd);
            Assert.AreEqual(_testBitmap, editedProduct.bitmapProd);
        }
        
        [Test]
        public void EditOkClick_ShouldThrowFormatException_WhenPriceIsEmpty()
        {
            _editTovarWindow.GetNameTov.Text = "NewTestProduct";
            _editTovarWindow.GetPriceTov.Text = "";
            _editTovarWindow.GetQuantityTov.Text = "20";
            _editTovarWindow.bitmapToBind = _testBitmap;

            var ex = Assert.Throws<FormatException>(() =>
            {
                _editTovarWindow.EditOk_Click(null, null);
            });

            Assert.That(ex.Message, Does.Contain("input string"));
        }
        
        [Test]
        public void EditOkClick_ShouldThrowFormatException_WhenQuantityIsEmpty()
        {
            _editTovarWindow.GetNameTov.Text = "NewTestProduct";
            _editTovarWindow.GetPriceTov.Text = "10";
            _editTovarWindow.GetQuantityTov.Text = "";
            _editTovarWindow.bitmapToBind = _testBitmap;

            var ex = Assert.Throws<FormatException>(() =>
            {
                _editTovarWindow.EditOk_Click(null, null);
            });

            Assert.That(ex.Message, Does.Contain("input string"));
        }
        
        [Test]
        public void EditOkClick_ShouldReturnUpdatedProduct_WhenImageIsEmpty()
        {
            _editTovarWindow.GetNameTov.Text = "NewTestProduct";
            _editTovarWindow.GetPriceTov.Text = "10";
            _editTovarWindow.GetQuantityTov.Text = "20";
            _editTovarWindow.bitmapToBind = null;

            _editTovarWindow.EditOk_Click(null, null);

            var editedProduct = ListPr.ListProd[ListPr.productForEdit];
            Assert.AreEqual("NewTestProduct", editedProduct.nameProd);
            Assert.AreEqual(10, editedProduct.priceProd);
            Assert.AreEqual(20, editedProduct.quantityProd);
            Assert.AreEqual(null, editedProduct.bitmapProd);
        }
        
        [Test]
        public void EditTovarConstructor_ShoulInitializeFieldsFromListProd_WhenItOpened()
        {
            ListPr.ListProd = new List<Product>()
            {
                new Product()
                {
                    nameProd = "TestProduct",
                    priceProd = 100,
                    quantityProd = 5,
                    bitmapProd = _testBitmap
                }
            };
            ListPr.productForEdit = 0;

            var editWindow = new EditTovar();

            Assert.AreEqual("TestProduct", editWindow.GetNameTov.Text);
            Assert.AreEqual("100", editWindow.GetPriceTov.Text);
            Assert.AreEqual("5", editWindow.GetQuantityTov.Text);
            Assert.IsNotNull(editWindow.GetImagePath.Source);
        }
    }
}