using System;
using BITKit.Entities;
using UnityEngine;
using UnityEngine.AI;
using UnityEngine.InputSystem;

namespace BITKit
{
	public class NavAgentMovement: StateBasedComponent<IEntityMovementState>,IEntityMovement,IHealthCallback
	{
		#region 属性
		[SerializeField] private NavMeshAgent agent;
		[SerializeField] private new Rigidbody rigidbody;
		#endregion
		#region 接口实现
		public Vector3 Velocity { get; private set; }
		public Vector3 GroundVelocity  { get; private set; }
		public bool IsGrounded { get; private set; }
		private bool isDead;
		private Vector3 recordPosition;
		private Quaternion recordRotation;
		private IEntityMovement _entityMovementImplementation;
		#endregion
		public override void OnUpdate(float deltaTime)
		{
			Velocity = agent.velocity;
			var _groundVelocity = Velocity;
			_groundVelocity.y = 0;
			GroundVelocity = _groundVelocity;
			IsGrounded = agent.isOnOffMeshLink is false;

			if (!isDead) return;
			
			recordPosition = rigidbody.position;
			recordRotation = rigidbody.rotation * transform.rotation;
		}
		public void SyncMovement(Vector3 velocity, Vector3 position, Quaternion rotation, bool isGrounded)
		{
			
		}
		public void Movement(Vector3 relativeVector)
		{
			
		}

		public void Movement(InputAction.CallbackContext context)
		{
			throw new NotImplementedException();
		}

		public void ExecuteCommand<T>(T command)
		{
			throw new NotImplementedException();
		}

		public void OnSetAlive(bool alive)
		{
			switch (alive)
			{
				case false:
					isDead = true;
					break;
				case true when isDead:
				{
					var _transform = transform;
					_transform.position = new Vector3()
					{
						x=recordPosition.x,
						y=0,
						z=recordPosition.x,
					};
					rigidbody.position = recordPosition;

					_transform.rotation *= recordRotation;

					rigidbody.rotation = recordRotation;
				
					isDead = false;
					break;
				}
			}
		}

		public void OnSetHP(int hp)
		{
		}
	}
}