// Copyright (c) Six Labors.
// Licensed under the Six Labors Split License.

using SixLabors.ImageSharp.PixelFormats;
using SixLabors.ImageSharp.Processing;
using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;

namespace SixLabors.ImageSharp.Tests.Processing.Processors.Convolution;

[GroupOutput("Convolution")]
public abstract class Basic1ParameterConvolutionTests
{
    private static readonly ImageComparer ValidatorComparer = ImageComparer.TolerantPercentage(0.05F);

    public static readonly TheoryData<int> Values = new TheoryData<int> { 3, 5 };

    public static readonly string[] InputImages =
    {
        TestImages.Bmp.Car,
        TestImages.Png.CalliphoraPartial,
        TestImages.Png.Blur
    };

    [Theory]
    [WithFileCollection(nameof(InputImages), nameof(Values), PixelTypes.Rgba32)]
    public void OnFullImage<TPixel>(TestImageProvider<TPixel> provider, int value)
        where TPixel : unmanaged, IPixel<TPixel>
    {
        provider.Utility.TestGroupName = this.GetType().Name;
        provider.RunValidatingProcessorTest(
            x => this.Apply(x, value),
            value,
            ValidatorComparer);
    }

    [Theory]
    [WithFileCollection(nameof(InputImages), nameof(Values), PixelTypes.Rgba32)]
    public void InBox<TPixel>(TestImageProvider<TPixel> provider, int value)
        where TPixel : unmanaged, IPixel<TPixel>
    {
        provider.Utility.TestGroupName = this.GetType().Name;
        provider.RunRectangleConstrainedValidatingProcessorTest(
            (x, rect) => this.Apply(x, value, rect),
            value,
            ValidatorComparer);
    }

    protected abstract void Apply(IImageProcessingContext ctx, int value);

    protected abstract void Apply(IImageProcessingContext ctx, int value, Rectangle bounds);
}