using Audio;
using Game.Messages;
using UnityEngine;

namespace Game.Blocks
{
	public class BounceBlockComponent : BlockComponent
	{
		protected override void Awake()
		{
			base.Awake();
			SurfaceType = EBlockSurfaceType.Bounce;

			GetOwner().LinkMessage<PlayerBallCollisionStartMessage>(OnPlayerBallCollided);
		}

		private void OnPlayerBallCollided(PlayerBallCollisionStartMessage a_Arg)
		{
			if (a_Arg.VelocityLostInCollision.sqrMagnitude > 1.0f)
			{
				AudioSourceManager.GetInstance().PlayOneShot("BounceBlockBounce", EAudioGroup.Game, transform);
			}

			Vector3 gravityDirection = a_Arg.Source.GetGravityDirection();
			float gravityAmount = Mathf.Clamp01(Vector3.Dot(a_Arg.ImpactNormal, gravityDirection));
			Vector3 gravityToAdd = gravityDirection * (a_Arg.Source.GetGravityStrength() * gravityAmount * a_Arg.TimeUntilCollision);
			a_Arg.Source.AddVelocity(-(a_Arg.VelocityLostInCollision + gravityToAdd));
		}
	}
}

namespace UserInterface.Elements
{
	[RequireComponent(typeof(EventHandler))]
	public class UIButton: UISelectable
	{
		private enum EButtonState
		{
			Normal,
			Highlighted,
			Pressed
		}

		public delegate void OnButtonPressedHandler();

		[SerializeField]
		private Graphic m_TargetGraphic = null;
		[SerializeField]
		private EPaletteType m_Palette = EPaletteType.Normal;
		[SerializeField]
		private EAudioPaletteType m_AudioPalette = EAudioPaletteType.Default;

		private EButtonState m_ButtonState;
		private OnButtonPressedHandler m_OnPressedHandler = null;

		protected override void Awake()
		{
			base.Awake();
			EventHandler.RegisterEventHandler<UIInputActionEventMessage>(OnInputAction);
		}

		private void OnInputAction(UIInputActionEventMessage a_Arg)
		{
			if (a_Arg.ActionType == InputSystem.EInputAction.UIPointerButton)
			{
				if (a_Arg.ActionData.ActionState == InputSystem.EActionState.Pressed)
				{
					OnPointerDown();
				}
				else if (a_Arg.ActionData.ActionState == InputSystem.EActionState.Released)
				{
					OnPointerUp();
				}
				a_Arg.IsHandled = true;
			}
		}

		public void SetSelectedHandler(OnButtonPressedHandler a_Handler)
		{
			m_OnPressedHandler = a_Handler;
        }

		public override void OnPointerEnter(UIPointerMoveMessage a_Message)
		{
			base.OnPointerEnter(a_Message);
			TransitionToState(EButtonState.Highlighted);
		}

		public override void OnPointerExit(UIPointerMoveMessage a_Message)
		{
			base.OnPointerExit(a_Message);
			TransitionToState(EButtonState.Normal);
		}

		[...]
	}
}