// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

using System.Drawing.Imaging;
using System.Globalization;

namespace System.ComponentModel.TypeConverterTests;

// On IoT: "Unable to find an entry point named 'CreateIconFromResourceEx'"
[ConditionalClass(typeof(PlatformDetection), nameof(PlatformDetection.IsNotWindowsIoTCore))]
public class IconConverterTest
{
    private readonly Icon _icon;
    private readonly IconConverter _icoConv;
    private readonly IconConverter _icoConvFrmTD;
    private readonly string _iconStr;
    private readonly byte[] _iconBytes;

    public IconConverterTest()
    {
        _icon = new Icon(Path.Join("bitmaps", "TestIcon.ico"));
        _iconStr = _icon.ToString();

        using (MemoryStream destStream = new())
        {
            _icon.Save(destStream);
            _iconBytes = destStream.ToArray();
        }

        _icoConv = new IconConverter();
        _icoConvFrmTD = (IconConverter)TypeDescriptor.GetConverter(_icon);
    }

    [Fact]
    public void TestCanConvertFrom()
    {
        Assert.True(_icoConv.CanConvertFrom(typeof(byte[])), "byte[] (no context)");
        Assert.True(_icoConv.CanConvertFrom(null, typeof(byte[])), "byte[]");
        Assert.True(_icoConv.CanConvertFrom(null, _iconBytes.GetType()), "_iconBytes.GetType()");
        Assert.False(_icoConv.CanConvertFrom(null, typeof(string)), "string");
        Assert.False(_icoConv.CanConvertFrom(null, typeof(Rectangle)), "Rectangle");
        Assert.False(_icoConv.CanConvertFrom(null, typeof(Point)), "Point");
        Assert.False(_icoConv.CanConvertFrom(null, typeof(PointF)), "PointF");
        Assert.False(_icoConv.CanConvertFrom(null, typeof(Size)), "Size");
        Assert.False(_icoConv.CanConvertFrom(null, typeof(SizeF)), "SizeF");
        Assert.False(_icoConv.CanConvertFrom(null, typeof(object)), "object");
        Assert.False(_icoConv.CanConvertFrom(null, typeof(int)), "int");
        Assert.False(_icoConv.CanConvertFrom(null, typeof(Metafile)), "Metafile");

        Assert.True(_icoConvFrmTD.CanConvertFrom(typeof(byte[])), "TD byte[] (no context)");
        Assert.True(_icoConvFrmTD.CanConvertFrom(null, typeof(byte[])), "TD byte[]");
        Assert.True(_icoConvFrmTD.CanConvertFrom(null, _iconBytes.GetType()), "TD _iconBytes.GetType()");
        Assert.False(_icoConvFrmTD.CanConvertFrom(null, typeof(string)), "TD string");
        Assert.False(_icoConvFrmTD.CanConvertFrom(null, typeof(Rectangle)), "TD Rectangle");
        Assert.False(_icoConvFrmTD.CanConvertFrom(null, typeof(Point)), "TD Point");
        Assert.False(_icoConvFrmTD.CanConvertFrom(null, typeof(PointF)), "TD PointF");
        Assert.False(_icoConvFrmTD.CanConvertFrom(null, typeof(Size)), "TD Size");
        Assert.False(_icoConvFrmTD.CanConvertFrom(null, typeof(SizeF)), "TD SizeF");
        Assert.False(_icoConvFrmTD.CanConvertFrom(null, typeof(object)), "TD object");
        Assert.False(_icoConvFrmTD.CanConvertFrom(null, typeof(int)), "TD int");
        Assert.False(_icoConvFrmTD.CanConvertFrom(null, typeof(Metafile)), "TD Metafile");
    }

    [Fact]
    public void TestCanConvertTo()
    {
        Assert.True(_icoConv.CanConvertTo(typeof(string)), "string (no context)");
        Assert.True(_icoConv.CanConvertTo(null, typeof(string)), "string");
        Assert.True(_icoConv.CanConvertTo(null, _iconStr.GetType()), "_iconStr.GetType()");
        Assert.True(_icoConv.CanConvertTo(typeof(byte[])), "byte[] (no context)");
        Assert.True(_icoConv.CanConvertTo(null, typeof(byte[])), "byte[]");
        Assert.True(_icoConv.CanConvertTo(null, _iconBytes.GetType()), "_iconBytes.GetType()");
        Assert.True(_icoConv.CanConvertTo(typeof(Image)), "Image (no context)");
        Assert.True(_icoConv.CanConvertTo(null, typeof(Image)), "Image");
        Assert.True(_icoConv.CanConvertTo(typeof(Bitmap)), "Bitmap (no context)");
        Assert.True(_icoConv.CanConvertTo(null, typeof(Bitmap)), "Bitmap");
        Assert.False(_icoConv.CanConvertTo(null, typeof(Rectangle)), "Rectangle");
        Assert.False(_icoConv.CanConvertTo(null, typeof(Point)), "Point");
        Assert.False(_icoConv.CanConvertTo(null, typeof(PointF)), "PointF");
        Assert.False(_icoConv.CanConvertTo(null, typeof(Size)), "Size");
        Assert.False(_icoConv.CanConvertTo(null, typeof(SizeF)), "SizeF");
        Assert.False(_icoConv.CanConvertTo(null, typeof(object)), "object");
        Assert.False(_icoConv.CanConvertTo(null, typeof(int)), "int");

        Assert.True(_icoConvFrmTD.CanConvertTo(typeof(string)), "TD string (no context)");
        Assert.True(_icoConvFrmTD.CanConvertTo(null, typeof(string)), "TD string");
        Assert.True(_icoConvFrmTD.CanConvertTo(null, _iconStr.GetType()), "TD _iconStr.GetType()");
        Assert.True(_icoConvFrmTD.CanConvertTo(typeof(byte[])), "TD byte[] (no context)");
        Assert.True(_icoConvFrmTD.CanConvertTo(null, typeof(byte[])), "TD byte[]");
        Assert.True(_icoConvFrmTD.CanConvertTo(null, _iconBytes.GetType()), "TD _iconBytes.GetType()");
        Assert.True(_icoConvFrmTD.CanConvertTo(typeof(Image)), "TD Image (no context)");
        Assert.True(_icoConvFrmTD.CanConvertTo(null, typeof(Image)), "TD Image");
        Assert.True(_icoConvFrmTD.CanConvertTo(typeof(Bitmap)), "TD Bitmap (no context)");
        Assert.True(_icoConvFrmTD.CanConvertTo(null, typeof(Bitmap)), "TD Bitmap");
        Assert.False(_icoConvFrmTD.CanConvertTo(null, typeof(Rectangle)), "TD Rectangle");
        Assert.False(_icoConvFrmTD.CanConvertTo(null, typeof(Point)), "TD Point");
        Assert.False(_icoConvFrmTD.CanConvertTo(null, typeof(PointF)), "TD PointF");
        Assert.False(_icoConvFrmTD.CanConvertTo(null, typeof(Size)), "TD Size");
        Assert.False(_icoConvFrmTD.CanConvertTo(null, typeof(SizeF)), "TD SizeF");
        Assert.False(_icoConvFrmTD.CanConvertTo(null, typeof(object)), "TD object");
        Assert.False(_icoConvFrmTD.CanConvertTo(null, typeof(int)), "TD int");
    }

    [Fact]
    public void TestConvertFrom()
    {
        Icon newIcon = (Icon)_icoConv.ConvertFrom(null, CultureInfo.InvariantCulture, _iconBytes);

        Assert.Equal(_icon.Height, newIcon.Height);
        Assert.Equal(_icon.Width, newIcon.Width);

        Assert.Throws<NotSupportedException>(() => _icoConv.ConvertFrom("System.Drawing.String"));
        Assert.Throws<NotSupportedException>(() => _icoConv.ConvertFrom(null, CultureInfo.InvariantCulture, "System.Drawing.String"));
        Assert.Throws<NotSupportedException>(() => _icoConv.ConvertFrom(null, CultureInfo.InvariantCulture, new Bitmap(20, 20)));
        Assert.Throws<NotSupportedException>(() => _icoConv.ConvertFrom(null, CultureInfo.InvariantCulture, new Point(10, 10)));
        Assert.Throws<NotSupportedException>(() => _icoConv.ConvertFrom(null, CultureInfo.InvariantCulture, new SizeF(10, 10)));
        Assert.Throws<NotSupportedException>(() => _icoConv.ConvertFrom(null, CultureInfo.InvariantCulture, new object()));

        newIcon = (Icon)_icoConvFrmTD.ConvertFrom(null, CultureInfo.InvariantCulture, _iconBytes);

        Assert.Equal(_icon.Height, newIcon.Height);
        Assert.Equal(_icon.Width, newIcon.Width);

        Assert.Throws<NotSupportedException>(() => _icoConvFrmTD.ConvertFrom("System.Drawing.String"));
        Assert.Throws<NotSupportedException>(() => _icoConvFrmTD.ConvertFrom(null, CultureInfo.InvariantCulture, "System.Drawing.String"));
        Assert.Throws<NotSupportedException>(() => _icoConvFrmTD.ConvertFrom(null, CultureInfo.InvariantCulture, new Bitmap(20, 20)));
        Assert.Throws<NotSupportedException>(() => _icoConvFrmTD.ConvertFrom(null, CultureInfo.InvariantCulture, new Point(10, 10)));
        Assert.Throws<NotSupportedException>(() => _icoConvFrmTD.ConvertFrom(null, CultureInfo.InvariantCulture, new SizeF(10, 10)));
        Assert.Throws<NotSupportedException>(() => _icoConvFrmTD.ConvertFrom(null, CultureInfo.InvariantCulture, new object()));
    }

    [Fact]
    public void TestConvertTo()
    {
        Assert.Equal(_iconStr, (string)_icoConv.ConvertTo(null, CultureInfo.InvariantCulture, _icon, typeof(string)));
        Assert.Equal(_iconStr, (string)_icoConv.ConvertTo(_icon, typeof(string)));

        byte[] newIconBytes = (byte[])_icoConv.ConvertTo(null, CultureInfo.InvariantCulture, _icon, _iconBytes.GetType());
        Assert.Equal(_iconBytes, newIconBytes);

        newIconBytes = (byte[])_icoConv.ConvertTo(_icon, _iconBytes.GetType());
        Assert.Equal(_iconBytes, newIconBytes);

        Assert.Throws<NotSupportedException>(() => _icoConv.ConvertTo(null, CultureInfo.InvariantCulture, _icon, typeof(Rectangle)));
        Assert.Throws<NotSupportedException>(() => _icoConv.ConvertTo(null, CultureInfo.InvariantCulture, _icon, _icon.GetType()));
        Assert.Throws<NotSupportedException>(() => _icoConv.ConvertTo(null, CultureInfo.InvariantCulture, _icon, typeof(Size)));
        Assert.Throws<NotSupportedException>(() => _icoConv.ConvertTo(null, CultureInfo.InvariantCulture, _icon, typeof(Point)));
        Assert.Throws<NotSupportedException>(() => _icoConv.ConvertTo(null, CultureInfo.InvariantCulture, _icon, typeof(Metafile)));
        Assert.Throws<NotSupportedException>(() => _icoConv.ConvertTo(null, CultureInfo.InvariantCulture, _icon, typeof(object)));
        Assert.Throws<NotSupportedException>(() => _icoConv.ConvertTo(null, CultureInfo.InvariantCulture, _icon, typeof(int)));

        Assert.Equal(_iconStr, (string)_icoConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture, _icon, typeof(string)));
        Assert.Equal(_iconStr, (string)_icoConvFrmTD.ConvertTo(_icon, typeof(string)));

        newIconBytes = (byte[])_icoConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture, _icon, _iconBytes.GetType());
        Assert.Equal(_iconBytes, newIconBytes);

        newIconBytes = (byte[])_icoConvFrmTD.ConvertTo(_icon, _iconBytes.GetType());
        Assert.Equal(_iconBytes, newIconBytes);

        Assert.Throws<NotSupportedException>(() => _icoConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture, _icon, typeof(Rectangle)));
        Assert.Throws<NotSupportedException>(() => _icoConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture, _icon, _icon.GetType()));
        Assert.Throws<NotSupportedException>(() => _icoConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture, _icon, typeof(Size)));
        Assert.Throws<NotSupportedException>(() => _icoConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture, _icon, typeof(Point)));
        Assert.Throws<NotSupportedException>(() => _icoConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture, _icon, typeof(Metafile)));
        Assert.Throws<NotSupportedException>(() => _icoConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture, _icon, typeof(object)));
        Assert.Throws<NotSupportedException>(() => _icoConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture, _icon, typeof(int)));

        using (new ThreadCultureChange(CultureInfo.CreateSpecificCulture("fr-FR"), CultureInfo.InvariantCulture))
        {
            Assert.Equal("(none)", (string)_icoConv.ConvertTo(null, typeof(string)));
            Assert.Equal("(none)", (string)_icoConv.ConvertTo(null, CultureInfo.CreateSpecificCulture("ru-RU"), null, typeof(string)));

            Assert.Equal("(none)", (string)_icoConvFrmTD.ConvertTo(null, typeof(string)));
            Assert.Equal("(none)", (string)_icoConvFrmTD.ConvertTo(null, CultureInfo.CreateSpecificCulture("de-DE"), null, typeof(string)));
        }
    }
}
