using PixiEditor.Models.Controllers;
using PixiEditor.Models.DataHolders;
using PixiEditor.Models.Enums;
using PixiEditor.Models.Layers;
using PixiEditor.Models.Position;
using PixiEditor.ViewModels;
using PixiEditorTests.HelpersTests;
using SkiaSharp;
using System;
using Xunit;

namespace PixiEditorTests.ModelsTests.DataHoldersTests
{
    [Collection("Application collection")]
    public class DocumentTests
    {
        //[Theory]
        //[InlineData(10, 10, 20, 20)]
        //[InlineData(1, 2, 5, 8)]
        //[InlineData(20, 20, 10, 10)] // TODO Anchor
        //public void TestResizeCanvasResizesProperly(int oldWidth, int oldHeight, int newWidth, int newHeight)
        //{
        //    Document document = new Document(oldWidth, oldHeight);

        //    document.ResizeCanvas(newWidth, newHeight, AnchorPoint.Top | AnchorPoint.Left);
        //    Assert.Equal(newHeight, document.Height);
        //    Assert.Equal(newWidth, document.Width);
        //}

        //[Theory]
        //[InlineData(10, 10, 20, 20)]
        //[InlineData(5, 8, 10, 16)]
        //public void TestResizeWorks(int oldWidth, int oldHeight, int newWidth, int newHeight)
        //{
        //    Document document = new Document(oldWidth, oldHeight);

        //    document.Resize(newWidth, newHeight);

        //    Assert.Equal(newHeight, document.Height);
        //    Assert.Equal(newWidth, document.Width);
        //}

        //[Theory]
        //[InlineData(10, 10, 0, 0)]
        //[InlineData(50, 50, 10, 49)]
        //public void TestThatClipCanvasWorksForSingleLayer(int initialWidth, int initialHeight, int additionalPixelX, int additionalPixelY)
        //{
        //    Document document = new Document(initialWidth, initialHeight);
        //    BitmapManager manager = new BitmapManager
        //    {
        //        ActiveDocument = document
        //    };
        //    manager.ActiveDocument.AddNewLayer("test");
        //    manager.ActiveLayer.SetPixel(
        //        new Coordinates(
        //        (int)Math.Ceiling(initialWidth / 2f),
        //        (int)Math.Ceiling(initialHeight / 2f)), SKColors.Black);

        //    manager.ActiveLayer.SetPixel(new Coordinates(additionalPixelX, additionalPixelY), SKColors.Black);

        //    document.ClipCanvas();

        //    Assert.Equal(manager.ActiveLayer.Width, document.Width);
        //    Assert.Equal(manager.ActiveLayer.Height, document.Height);
        //}

        //[Theory]
        //[InlineData(10, 10, 0, 0)]
        //[InlineData(50, 50, 15, 23)]
        //[InlineData(3, 3, 1, 1)]
        //[InlineData(1, 1, 0, 0)]
        //public void TestThatClipCanvasWorksForMultipleLayers(int initialWidth, int initialHeight, int secondLayerPixelX, int secondLayerPixelY)
        //{
        //    Document document = new Document(initialWidth, initialHeight);
        //    BitmapManager manager = new BitmapManager
        //    {
        //        ActiveDocument = document
        //    };
        //    manager.ActiveDocument.AddNewLayer("test");
        //    manager.ActiveLayer.SetPixel(
        //        new Coordinates(
        //        (int)Math.Ceiling(initialWidth / 2f),
        //        (int)Math.Ceiling(initialHeight / 2f)), SKColors.Black); // Set pixel in center

        //    manager.ActiveDocument.AddNewLayer("test2");

        //    manager.ActiveLayer.SetPixel(new Coordinates(secondLayerPixelX, secondLayerPixelY), SKColors.Black);

        //    document.ClipCanvas();

        //    int totalWidth = Math.Abs(manager.ActiveDocument.Layers[1].OffsetX +
        //        manager.ActiveDocument.Layers[1].Width - (manager.ActiveDocument.Layers[0].OffsetX +
        //                                                  manager.ActiveDocument.Layers[0].Width)) + 1;

        //    int totalHeight = Math.Abs(manager.ActiveDocument.Layers[1].OffsetY +
        //        manager.ActiveDocument.Layers[1].Height - (manager.ActiveDocument.Layers[0].OffsetY +
        //                                                   manager.ActiveDocument.Layers[0].Height)) + 1;

        //    Assert.Equal(totalWidth, document.Width);
        //    Assert.Equal(totalHeight, document.Height);
        //}

        //[Theory]
        //[InlineData(10, 10)]
        //[InlineData(11, 11)]
        //[InlineData(25, 17)]
        //public void TestThatCenterContentCentersContentForSingleLayer(int docWidth, int docHeight)
        //{
        //    Document doc = new Document(docWidth, docHeight);
        //    BitmapManager manager = new BitmapManager
        //    {
        //        ActiveDocument = doc
        //    };
        //    manager.ActiveDocument.AddNewLayer("test");

        //    manager.ActiveLayer.SetPixel(new Coordinates(0, 0), SKColors.Lime);

        //    doc.CenterContent();

        //    Assert.Equal(Math.Floor(docWidth / 2f), manager.ActiveLayer.OffsetX);
        //    Assert.Equal(Math.Floor(docHeight / 2f), manager.ActiveLayer.OffsetY);
        //}

        //[Theory]
        //[InlineData(10, 10)]
        //[InlineData(11, 11)]
        //[InlineData(25, 17)]
        //public void TestThatCenterContentCentersContentForMultipleLayers(int docWidth, int docHeight)
        //{
        //    Document doc = new Document(docWidth, docHeight);
        //    BitmapManager manager = new BitmapManager
        //    {
        //        ActiveDocument = doc
        //    };
        //    manager.ActiveDocument.AddNewLayer("test");
        //    manager.ActiveLayer.SetPixel(new Coordinates(0, 0), SKColors.Lime);

        //    manager.ActiveDocument.AddNewLayer("test2");
        //    manager.ActiveLayer.SetPixel(new Coordinates(1, 1), SKColors.Lime);

        //    foreach (var layer in manager.ActiveDocument.Layers)
        //    {
        //        layer.IsActive = true;
        //    }

        //    doc.CenterContent();

        //    int midWidth = (int)Math.Floor(docWidth / 2f);
        //    int midHeight = (int)Math.Floor(docHeight / 2f);

        //    Assert.Equal(midWidth - 1, manager.ActiveDocument.Layers[0].OffsetX);
        //    Assert.Equal(midHeight - 1, manager.ActiveDocument.Layers[0].OffsetY);

        //    Assert.Equal(midWidth, manager.ActiveDocument.Layers[1].OffsetX);
        //    Assert.Equal(midHeight, manager.ActiveDocument.Layers[1].OffsetY);
        //}

        //[Fact]
        //public void TestThatSetNextActiveLayerSetsLayerBelow()
        //{
        //    Document doc = new Document(10, 10);
        //    doc.Layers.Add(new PixiEditor.Models.Layers.Layer("Test"));
        //    doc.Layers.Add(new PixiEditor.Models.Layers.Layer("Test 2"));

        //    doc.SetMainActiveLayer(1);

        //    doc.SetNextLayerAsActive(1);

        //    Assert.False(doc.Layers[1].IsActive);
        //    Assert.True(doc.Layers[0].IsActive);
        //}

        //[Fact]
        //public void TestThatAddNewLayerAddsUndoChange()
        //{
        //    Document document = new Document(10, 10);

        //    document.AddNewLayer("Test");
        //    document.AddNewLayer("Test2");

        //    Assert.Single(document.UndoManager.UndoStack);
        //}

        //[Fact]
        //public void TestThatAddNewLayerUndoProcessWorks()
        //{
        //    Document document = new Document(10, 10);

        //    document.AddNewLayer("Test");
        //    document.AddNewLayer("Test2");

        //    document.UndoManager.Undo();

        //    Assert.Single(document.Layers);
        //}

        //[Fact]
        //public void TestThatAddNewLayerRedoProcessWorks()
        //{
        //    Document document = new Document(10, 10);

        //    document.AddNewLayer("Test");
        //    document.AddNewLayer("Test2");

        //    document.UndoManager.Undo();
        //    document.UndoManager.Redo();

        //    Assert.Equal(2, document.Layers.Count);
        //}

        //[Fact]
        //public void TestThatRemoveLayerUndoProcessWorks()
        //{
        //    Document document = new Document(10, 10);

        //    document.AddNewLayer("Test");
        //    document.AddNewLayer("Test2");

        //    document.RemoveLayer(1);

        //    document.UndoManager.Undo();

        //    Assert.Equal(2, document.Layers.Count);
        //}

        //[Fact]
        //public void TestThatRemoveLayerRedoProcessWorks()
        //{
        //    Document document = new Document(10, 10);

        //    document.AddNewLayer("Test");
        //    document.AddNewLayer("Test2");

        //    document.RemoveLayer(1);

        //    document.UndoManager.Undo();
        //    document.UndoManager.Redo();

        //    Assert.Single(document.Layers);
        //}

        //[Theory]
        //[InlineData(2, 0, 1)]
        //[InlineData(2, 1, -1)]
        //[InlineData(3, 1, 1)]
        //[InlineData(3, 2, -2)]
        //[InlineData(10, 9, -5)]
        //public void TestThatMoveLayerInStructureWorks(int layersAmount, int index, int amount)
        //{
        //    Document document = new Document(10, 10);
        //    for (int i = 0; i < layersAmount; i++)
        //    {
        //        document.AddNewLayer("Layer " + i);
        //    }

        //    Guid oldGuid = document.Layers[index].LayerGuid;
        //    Guid referenceGuid = document.Layers[index + amount].LayerGuid;
        //    document.MoveLayerInStructure(oldGuid, referenceGuid, amount > 0);

        //    Assert.Equal(oldGuid, document.Layers[index + amount].LayerGuid);
        //}

        //[Fact]
        //public void TestThatMoveLayerInStructureUndoProcessWorks()
        //{
        //    Document document = new Document(10, 10);

        //    document.AddNewLayer("Test");
        //    document.AddNewLayer("Test2");

        //    Guid oldGuid = document.Layers[0].LayerGuid;
        //    Guid referenceGuid = document.Layers[1].LayerGuid;

        //    document.MoveLayerInStructure(oldGuid, referenceGuid);

        //    document.UndoManager.Undo();

        //    Assert.Equal("Test2", document.Layers[1].Name);
        //    Assert.Equal("Test", document.Layers[0].Name);
        //}

        //[Fact]
        //public void TestThatMoveLayerInStructureRedoProcessWorks()
        //{
        //    Document document = new Document(10, 10);

        //    document.AddNewLayer("Test");
        //    document.AddNewLayer("Test2");

        //    Guid oldGuid = document.Layers[0].LayerGuid;
        //    Guid referenceGuid = document.Layers[1].LayerGuid;

        //    document.MoveLayerInStructure(oldGuid, referenceGuid, true);

        //    document.UndoManager.Undo();
        //    document.UndoManager.Redo();

        //    Assert.Equal("Test", document.Layers[1].Name);
        //    Assert.Equal("Test2", document.Layers[0].Name);
        //}

        //[StaFact]
        //public void TestThatDocumentGetsAddedToRecentlyOpenedList()
        //{
        //    ViewModelMain viewModel = ViewModelHelper.MockedViewModelMain();

        //    Document document = new Document(1, 1)
        //    {
        //        XamlAccesibleViewModel = viewModel
        //    };

        //    string testFilePath = @"C:\idk\somewhere\homework";

        //    document.DocumentFilePath = testFilePath;

        //    Assert.Contains(viewModel.FileSubViewModel.RecentlyOpened, x => x.FilePath == testFilePath);
        //}

        //[Fact]
        //public void TestThatDupliacteLayerWorks()
        //{
        //    const string layerName = "New Layer";

        //    Document document = new(10, 10);

        //    document.AddNewLayer(layerName);
        //    Layer duplicate = document.DuplicateLayer(0);

        //    Assert.Equal(document.Layers[1], duplicate);
        //    Assert.Equal(layerName + " (1)", duplicate.Name);
        //    Assert.True(duplicate.IsActive);
        //}

        //[Fact]
        //public void TestThatCorrectLayerSuffixIsSet()
        //{
        //    const string layerName = "New Layer";

        //    Document document = new(10, 10);

        //    document.AddNewLayer(layerName);
        //    document.AddNewLayer(layerName);
        //    document.AddNewLayer(layerName);

        //    Assert.Equal(layerName, document.Layers[0].Name);
        //    Assert.Equal(layerName + " (1)", document.Layers[1].Name);
        //    Assert.Equal(layerName + " (2)", document.Layers[2].Name);

        //    document.Layers.Add(new Layer(layerName + " (15)"));
        //    document.AddNewLayer(layerName);

        //    Assert.Equal(layerName + " (16)", document.Layers[4].Name);
        //}
    }
}