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

<root />

@code {
	private string _inputAction;
	private InputAnalog _inputAnalog;
	private InputGlyphSize _inputGlyphSize;
	private bool _outline;

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

	public void SetAction(string inputAction)
	{
		if (_inputAction == inputAction)
			return;

		_inputAction = inputAction;
		BindClass("pressed", () => Input.Down(_inputAction));
		Update();
	}

	public void SetAnalog(string inputAnalog)
	{
		if (!Enum.TryParse<InputAnalog>(inputAnalog, true, out var analog))
			return;

		if (analog == InputAnalog.LeftStickX || analog == InputAnalog.LeftStickY)
			BindClass("pressed", () => !Input.AnalogMove.IsNearlyZero());
		else if (analog == InputAnalog.RightStickX || analog == InputAnalog.RightStickY)
			BindClass("pressed", () => !Input.AnalogLook.IsNearlyZero());

		_inputAnalog = analog;
	}

	public override void SetProperty(string name, string value)
	{
		switch (name)
		{
			case "action":
				{
					SetAction(value);
					Update();

					break;
				}

			case "analog":
				{
					SetAnalog(value);
					Update();

					break;
				}

			case "size":
				{
					Enum.TryParse(value, true, out _inputGlyphSize);
					Update();

					break;
				}

			case "outline":
				{
					_outline = value switch
					{
						"true" => true,
						"false" => false,
						_ => _outline
					};

					Update();
					break;
				}
		}

		base.SetProperty(name, value);
	}

	private void Update()
	{
		var texture = _inputAction is null ? Input.GetGlyph(_inputAnalog, _inputGlyphSize, _outline) : Input.GetGlyph(_inputAction, _inputGlyphSize, _outline);
		Style.BackgroundImage = texture;
	}

	protected override int BuildHash()
	{
		return HashCode.Combine(Input.UsingController);
	}
}