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

using System.Linq;
using SixLabors.ImageSharp.Formats.Gif;
using SixLabors.ImageSharp.Metadata;
using SixLabors.ImageSharp.Metadata.Profiles.Icc;
using Xunit;
using ExifProfile = SixLabors.ImageSharp.Metadata.Profiles.Exif.ExifProfile;
using ExifTag = SixLabors.ImageSharp.Metadata.Profiles.Exif.ExifTag;

namespace SixLabors.ImageSharp.Tests.Metadata
{
    /// <summary>
    /// Tests the <see cref="ImageFrameMetadataTests"/> class.
    /// </summary>
    public class ImageFrameMetadataTests
    {
        [Fact]
        public void ConstructorImageFrameMetadata()
        {
            const int frameDelay = 42;
            const int colorTableLength = 128;
            const GifDisposalMethod disposalMethod = GifDisposalMethod.RestoreToBackground;

            var metaData = new ImageFrameMetadata();
            GifFrameMetadata gifFrameMetadata = metaData.GetGifMetadata();
            gifFrameMetadata.FrameDelay = frameDelay;
            gifFrameMetadata.ColorTableLength = colorTableLength;
            gifFrameMetadata.DisposalMethod = disposalMethod;

            var clone = new ImageFrameMetadata(metaData);
            GifFrameMetadata cloneGifFrameMetadata = clone.GetGifMetadata();

            Assert.Equal(frameDelay, cloneGifFrameMetadata.FrameDelay);
            Assert.Equal(colorTableLength, cloneGifFrameMetadata.ColorTableLength);
            Assert.Equal(disposalMethod, cloneGifFrameMetadata.DisposalMethod);
        }

        [Fact]
        public void CloneIsDeep()
        {
            // arrange
            byte[] xmpProfile = { 1, 2, 3 };
            var exifProfile = new ExifProfile();
            exifProfile.SetValue(ExifTag.Software, "UnitTest");
            exifProfile.SetValue(ExifTag.Artist, "UnitTest");
            var iccProfile = new IccProfile()
            {
                Header = new IccProfileHeader()
                {
                    CmmType = "Unittest"
                }
            };
            var iptcProfile = new ImageSharp.Metadata.Profiles.Iptc.IptcProfile();
            var metaData = new ImageFrameMetadata()
            {
                XmpProfile = xmpProfile,
                ExifProfile = exifProfile,
                IccProfile = iccProfile,
                IptcProfile = iptcProfile
            };

            // act
            ImageFrameMetadata clone = metaData.DeepClone();

            // assert
            Assert.NotNull(clone);
            Assert.NotNull(clone.ExifProfile);
            Assert.NotNull(clone.XmpProfile);
            Assert.NotNull(clone.IccProfile);
            Assert.NotNull(clone.IptcProfile);
            Assert.False(metaData.ExifProfile.Equals(clone.ExifProfile));
            Assert.True(metaData.ExifProfile.Values.Count == clone.ExifProfile.Values.Count);
            Assert.False(metaData.XmpProfile.Equals(clone.XmpProfile));
            Assert.True(metaData.XmpProfile.SequenceEqual(clone.XmpProfile));
            Assert.False(metaData.GetGifMetadata().Equals(clone.GetGifMetadata()));
            Assert.False(metaData.IccProfile.Equals(clone.IccProfile));
            Assert.False(metaData.IptcProfile.Equals(clone.IptcProfile));
        }
    }
}