using System;
using System.Collections;
using System.Collections.Generic;
using Animancer;
using BITFALL.Player.Movement;
using BITKit;
using BITKit.Animations;
using BITKit.Entities;
using BITKit.StateMachine;
using UnityEngine;
using UnityEngine.Animations.Rigging;

namespace BITFALL.Player.Animation
{
	public interface IPlayerAnimationState : IState
	{
		void OnMovementStateChanged(IEntityMovementState oldState, IEntityMovementState newState);
	}
	public class PlayerAnimationController : StateBasedBehavior<IPlayerAnimationState>
	{
		
		[SerializeField] internal UnityAnimator animator;
		[SerializeField] internal AnimancerComponent animancerComponent;

		[Inject]
		internal IEntityMovement _movement;
		
		private static readonly int Vertical = Animator.StringToHash(BITConstant.Player.Vertical);
		private static readonly int Horizontal = Animator.StringToHash(BITConstant.Player.Horizontal);
		private static readonly int SqrMagnitude = Animator.StringToHash(BITConstant.Player.SqrMagnitude);
		private static readonly int Pitch = Animator.StringToHash(BITConstant.Player.Pitch);

		public override void OnAwake()
		{
			base.OnAwake();
			_movement.OnStateChanged += OnMovementStateChanged;

			_movement.OnCommand += OnCommand;
		}

		private void OnCommand(object obj)
		{
			switch (obj)
			{
				case OnPlayerJumpCommand:
					UnityEntity.Invoke<string>(Constant.Animation.Play,BITConstant.Player.Jump);
					break;
			}
		}

		public override void OnFixedUpdate(float deltaTime)
		{
			animator.animator.SetFloat(Vertical, _movement.LocomotionBasedVelocity.z);
			animator.animator.SetFloat(Horizontal, _movement.LocomotionBasedVelocity.x);
			animator.animator.SetFloat(SqrMagnitude, _movement.LocomotionBasedVelocity.sqrMagnitude);
			
			animator.animator.SetFloat(Pitch,-MathV.TransientRotationAxis(_movement.ViewRotation.eulerAngles.x));
			
			CurrentState?.OnStateUpdate(deltaTime);
			
			UnityEntity.SetDirect(BITHash.Player.IsGrounded,_movement.IsGrounded);
		}
		private void OnMovementStateChanged(IEntityMovementState arg1, IEntityMovementState arg2)
		{
			foreach (var x in StateDictionary.Values)
			{
				x.OnMovementStateChanged(arg1,arg2);
			}
		}
	}
}