@using System
@using Sandbox
@using Sandbox.UI
@namespace BrickJam.UI
@inherits Panel

<root />

@code {
	public string Action { get; set; }
	public InputGlyphSize GlyphSize { get; set; } = InputGlyphSize.Small;
	public GlyphStyle GlyphStyle { get; set; } = GlyphStyle.Knockout;

	protected override void OnAfterTreeRender( bool firstTime )
	{
		base.OnAfterTreeRender( firstTime );
		Update();
	}

	public void Update()
	{
		if ( string.IsNullOrEmpty( Action ) )
			return;

		// Pass an explicit GlyphStyle to disambiguate the GetGlyph overloads.
		var glyph = Input.GetGlyph( Action, GlyphSize, GlyphStyle );
		if ( glyph is not null )
			Style.BackgroundImage = glyph;
	}

	public override void SetProperty( string name, string value )
	{
		base.SetProperty( name, value );

		if ( name is "action" or "Action" )
		{
			Action = value;
			Update();
		}
	}

	protected override int BuildHash() => HashCode.Combine( Action );
}

<style>
	InputGlyph {
		background-size: contain;
		background-position: center;
		background-repeat: no-repeat;
		filter: drop-shadow(3px 3px 1px black);
	}
</style>