using Godot;
using System;

namespace BITKit.UX
{
	public partial class UXBasedModelViewer : Control
	{
		[Export] private float delta = 0.1f;
		[Export] private Node3D model;

		private readonly ValidHandle _isEnabled = new();

		private Vector2 _velocity;
		public override void _Ready()
		{
			base._Ready();
			MouseEntered += () => _isEnabled.RemoveDisableElements(this);
			MouseExited += () => _isEnabled.AddDisableElements(this);
			_isEnabled.SetDisableElements(1,false);
		}

		public override void _Process(double delta)
		{
			base._Process(delta);
			_isEnabled.SetDisableElements(1,!Visible);
			if (_velocity == default) return;
			
			var rotate = _velocity * this.delta * (float)delta;
				
			model.RotateX(Mathf.DegToRad(rotate.Y));
			model.RotateY(Mathf.DegToRad(rotate.X));
				
			_velocity = Vector2.Zero;
			
		
		}
		public override void _Input(InputEvent @event)
		{
			base._Input(@event);
			switch (@event)
			{
				case InputEventMouseButton button:
					_isEnabled.SetElements(this,button.Pressed);
					break;
				case InputEventMouseMotion motion when _isEnabled:
					_velocity += motion.Relative;
					break;
			}
		}
		public void Reset()
		{
			model.RotationDegrees = Vector3.Zero;
		}
	}

}