using Godot;
using Skeleton.DataStructure.Link;
using VirtualChemistry.Chemistry.Mixtures.Implements;

public partial class FlaskContent : ColorRect
{

	public HomogeneousMixture Mixture { get; set; } = HomogeneousMixture.Null;
	private const double ContainerHeight = 512d;
	private double ContainerVolume => Mixture.HeterogeneousMixture.Container.Volume();
	public double Volume => Mixture.Volume;
	private TextureButton Mask { get; set; }

	public double VolumeStartFrom {
		get
		{
			double res = 0;
			for (LinkNode<HomogeneousMixture> iter = Mixture.Layer.Previous; !iter.IsEnding; iter = iter.Previous)
				res += iter.Value.Volume;
			return res;
		}
	}

	private ColorRect Bar { get; set; }
	private AnimationPlayer AP { get; set; }

	public double StartFrom => (VolumeStartFrom / ContainerVolume) * ContainerHeight;
	public void UpdateVolumeAndPosition()
	{
		double height = (Volume / ContainerVolume) * ContainerHeight;
		Position = new Vector2(Position.X, 512-(float)(StartFrom + height));
		Size = new Vector2(Size.X, (float)height);
		Color = Color.Color8(
			Mixture.ColorRed,
			Mixture.ColorGreen,
			Mixture.ColorGreen,
			Mixture.ColorTransparent
		);
	}

	// Called when the node enters the scene tree for the first time.
	public override void _Ready()
	{
		Bar = GetNode<ColorRect>("Bar");
		AP = GetNode<AnimationPlayer>("AP");
		Mask = GetNode<TextureButton>("Mask");
	}

	// Called every frame. 'delta' is the elapsed time since the previous frame.
	public override void _Process(double delta)
	{
	}
	private void OnSizeChange() => Mask.Size = Size;
	private void OnMouseEnter() => AP.Play("MouseEntered");
	private void OnMouseExit() => AP.PlayBackwards("MouseEntered");
	private void OnClick() => GlobalScene.MainControlPanel.Update(Mixture);
}