using Avalonia.Controls;
using TovarV2;
using Avalonia;
using Avalonia.Headless;
using Avalonia.Input;
using Avalonia.Media.Imaging;

namespace TestTovarV2
{
    [TestFixture]
    public class ProductEditTests
    {
        private ProductEdit _productEditWindow;
        public Bitmap _testBitmap;

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

        [SetUp]
        public void Setup()
        {
            ListPr.ListProd.Clear();
            ListPr.productSelects.Clear();
            
            for (int i = 0; i < 4; i++)
            {
                ListPr.ListProd.Add(new Product
                {
                    Id = i,
                    nameProd = $"Test {i}",
                    priceProd = 1 + i,
                    quantityProd = 4,
                    bitmapProd = _testBitmap
                });
            }
            
            ListPr.codeUser = 0;
            
            _productEditWindow = new ProductEdit();
        }
        
        [Test]
        public void AddToKorzBtnOnClick_ShouldNotAddDuplicate_WhenProductInCart()
        {
            ListPr.productSelects.Add(new ProductSelect
            {
                nameProdKorz = "Test 0"
            });
        
            var btn = new Button { Tag = 0 };
            _productEditWindow.AddToKorzBtn_OnClick(btn, null);
        
            Assert.That(1 == ListPr.productSelects.Count);
        }
        
        [Test]
        public void AddToKorzBtnOnClick_ShouldAddProduct_WhenProductNotInCart()
        {
            var btn = new Button { Tag = 0 };
            _productEditWindow.AddToKorzBtn_OnClick(btn, null);
        
            Assert.That(1 == ListPr.productSelects.Count);
            Assert.That("Test 0" == ListPr.productSelects[0].nameProdKorz);
        }

        [Test]
        public void BtnKorzinaOnClick_ShouldOpenKorzinaWindow_WhenKorzinaEmpty()
        {
            _productEditWindow.BtnKorzina_OnClick(null, null);
            Assert.That(Korzina.IsOpen);
        }

        [Test]
        public void NextPageOnClick_ShouldReturnLastProducts_WhenProductsInList()
        {
            _productEditWindow.PagesConfig(ListPr.ListProd);
            _productEditWindow.NextPage_OnClick(null, null);

            Assert.That("Test 2" == _productEditWindow.currentProd[0].nameProd);
            Assert.That("Test 3" == _productEditWindow.currentProd[1].nameProd);
        }
        
        [Test]
        public void PrevPageOnClick_ShouldReturnLastProducts_WhenProductsInList()
        {
            _productEditWindow.PagesConfig(ListPr.ListProd);
            _productEditWindow.NextPage_OnClick(null, null);
            _productEditWindow.PrevPage_OnClick(null, null);

            Assert.That("Test 0" == _productEditWindow.currentProd[0].nameProd);
            Assert.That("Test 1" == _productEditWindow.currentProd[1].nameProd);
        }
        
        [Test]
        public void BtnEditTovarOnClick_ShouldOpenEditTovarWindow_WhenProductIsSelected()
        {
            var selectedProduct = ListPr.ListProd[0];
            _productEditWindow.ProdListPublic.SelectedItem = selectedProduct;
            ListPr.productSelects.Clear();

            _productEditWindow.BtnEditTovar_OnClick(null, null);

            Assert.That(EditTovar.IsOpen);
        }
        
        [Test]
        public void BtnEditTovarOnClick_ShouldThrowArgumentOutOfRangeException_WhenProductIsNotSelected()
        {
            _productEditWindow.ProdListPublic.SelectedItem = null;
            ListPr.productSelects.Clear();
            
            var ex = Assert.Throws<ArgumentOutOfRangeException>(() =>
            {
                _productEditWindow.BtnEditTovar_OnClick(null, null);
            });

            Assert.That(ex.Message, Does.Contain("Index was out of range"));
        }
        
        [Test]
        public void DelBtnOnClick_ShouldDeleteProduct_WhenFirstProductIsSelected()
        {
            int initialCount = ListPr.ListProd.Count;
            var delButton = new Button { Tag = 0 };
            
            _productEditWindow.DelBtn_Click(delButton, null);
        
            Assert.That(initialCount - 1 == ListPr.ListProd.Count);
        }
        
        [Test]
        public void DelBtnOnClick_ShouldDeleteProduct_WhenSecondProductIsSelected()
        {
            int initialCount = ListPr.ListProd.Count;
            var delButton = new Button { Tag = 1 };
            
            _productEditWindow.DelBtn_Click(delButton, null);
        
            Assert.That(initialCount - 1 == ListPr.ListProd.Count);
        }

        [Test]
        public void BtnInsertOnClick_ShouldOpenAddTovarWindow_WhenButtonIsPressed()
        {
            _productEditWindow.BtnInsert_OnClick(null, null);
            Assert.That(AddTovar.IsOpen);
        }

        [Test]
        public void BtnVyhodOnClick_ShouldOpenMainWindow_WhenButtonIsPressed()
        {
            _productEditWindow.BtnVyhod_OnClick(null, null);
            
            Assert.That(MainWindow.IsOpen);
        }
    }
}