// Copyright (c) Six Labors.
// Licensed under the Apache License, Version 2.0.

using System;
using System.IO;
using System.Threading.Tasks;
using SixLabors.ImageSharp.Formats;
using SixLabors.ImageSharp.Formats.Tiff;
using SixLabors.ImageSharp.PixelFormats;
using Xunit;

namespace SixLabors.ImageSharp.Tests.Formats.Tiff
{
    [Trait("Category", "Tiff.BlackBox.Encoder")]
    [Trait("Category", "Tiff")]
    public class ImageExtensionsTest
    {
        [Theory]
        [WithFile(TestImages.Tiff.RgbUncompressed, PixelTypes.Rgba32)]
        public void ThrowsSavingNotImplemented<TPixel>(TestImageProvider<TPixel> provider)
            where TPixel : unmanaged, IPixel<TPixel>
        {
            Assert.Throws<NotImplementedException>(() =>
            {
                string dir = TestEnvironment.CreateOutputDirectory(nameof(ImageExtensionsTest));
                string file = Path.Combine(dir, "SaveAsTiff_Path.tiff");
                using var image = provider.GetImage(new TiffDecoder());
                image.SaveAsTiff(file);
            });
        }

        [Fact(Skip = "Saving not implemented")]
        public void SaveAsTiff_Path()
        {
            string dir = TestEnvironment.CreateOutputDirectory(nameof(ImageExtensionsTest));
            string file = Path.Combine(dir, "SaveAsTiff_Path.tiff");

            using (var image = new Image<Rgba32>(10, 10))
            {
                image.SaveAsTiff(file);
            }

            using (Image.Load(file, out IImageFormat mime))
            {
                Assert.Equal("image/tiff", mime.DefaultMimeType);
            }
        }

        [Fact(Skip = "Saving not implemented")]
        public async Task SaveAsTiffAsync_Path()
        {
            string dir = TestEnvironment.CreateOutputDirectory(nameof(ImageExtensionsTest));
            string file = Path.Combine(dir, "SaveAsTiffAsync_Path.tiff");

            using (var image = new Image<Rgba32>(10, 10))
            {
                await image.SaveAsTiffAsync(file);
            }

            using (Image.Load(file, out IImageFormat mime))
            {
                Assert.Equal("image/tiff", mime.DefaultMimeType);
            }
        }

        [Fact(Skip = "Saving not implemented")]
        public void SaveAsTiff_Path_Encoder()
        {
            string dir = TestEnvironment.CreateOutputDirectory(nameof(ImageExtensions));
            string file = Path.Combine(dir, "SaveAsTiff_Path_Encoder.tiff");

            using (var image = new Image<Rgba32>(10, 10))
            {
                image.SaveAsTiff(file, new TiffEncoder());
            }

            using (Image.Load(file, out IImageFormat mime))
            {
                Assert.Equal("image/tiff", mime.DefaultMimeType);
            }
        }

        [Fact(Skip = "Saving not implemented")]
        public async Task SaveAsTiffAsync_Path_Encoder()
        {
            string dir = TestEnvironment.CreateOutputDirectory(nameof(ImageExtensions));
            string file = Path.Combine(dir, "SaveAsTiffAsync_Path_Encoder.tiff");

            using (var image = new Image<Rgba32>(10, 10))
            {
                await image.SaveAsTiffAsync(file, new TiffEncoder());
            }

            using (Image.Load(file, out IImageFormat mime))
            {
                Assert.Equal("image/tiff", mime.DefaultMimeType);
            }
        }

        [Fact(Skip = "Saving not implemented")]
        public void SaveAsTiff_Stream()
        {
            using var memoryStream = new MemoryStream();

            using (var image = new Image<Rgba32>(10, 10))
            {
                image.SaveAsTiff(memoryStream);
            }

            memoryStream.Position = 0;

            using (Image.Load(memoryStream, out IImageFormat mime))
            {
                Assert.Equal("image/tiff", mime.DefaultMimeType);
            }
        }

        [Fact(Skip = "Saving not implemented")]
        public async Task SaveAsTiffAsync_StreamAsync()
        {
            using var memoryStream = new MemoryStream();

            using (var image = new Image<Rgba32>(10, 10))
            {
                await image.SaveAsTiffAsync(memoryStream);
            }

            memoryStream.Position = 0;

            using (Image.Load(memoryStream, out IImageFormat mime))
            {
                Assert.Equal("image/tiff", mime.DefaultMimeType);
            }
        }

        [Fact(Skip = "Saving not implemented")]
        public void SaveAsTiff_Stream_Encoder()
        {
            using var memoryStream = new MemoryStream();

            using (var image = new Image<Rgba32>(10, 10))
            {
                image.SaveAsTiff(memoryStream, new TiffEncoder());
            }

            memoryStream.Position = 0;

            using (Image.Load(memoryStream, out IImageFormat mime))
            {
                Assert.Equal("image/tiff", mime.DefaultMimeType);
            }
        }

        [Fact(Skip = "Saving not implemented")]
        public async Task SaveAsTiffAsync_Stream_Encoder()
        {
            using var memoryStream = new MemoryStream();

            using (var image = new Image<Rgba32>(10, 10))
            {
                await image.SaveAsTiffAsync(memoryStream, new TiffEncoder());
            }

            memoryStream.Position = 0;

            using (Image.Load(memoryStream, out IImageFormat mime))
            {
                Assert.Equal("image/tiff", mime.DefaultMimeType);
            }
        }
    }
}