using Animation;
using UnityEngine;

public class PlayerController : MonoBehaviour
{
    [SerializeField]
    private float _speed = 5.0f;
    
    
    private PlayerState _state = PlayerState.Idle;
    private AnimatorManager<AnimatorParam> _mAnimator;
    
    private Vector3 _destPos;
    
    enum AnimatorParam
    {
        speed,
        // atk_speed,
        // attack,
        run,
    }
    
    enum PlayerState
    {
        Idle,
        Move,
        Attack,
        Die
    }
    
    void Start()
    {
        _mAnimator = new AnimatorManager<AnimatorParam>(GetComponent<Animator>());
        Manager.Input.MouseAction -= OnMouseClicked;
        Manager.Input.MouseAction += OnMouseClicked;
    }

    void Update()
    {
        switch (_state)
        {
            case PlayerState.Idle:
                UpdateIdle();
                break;
            case PlayerState.Move:
                UpdateMove();
                break;
            case PlayerState.Attack:
                break;
            case PlayerState.Die:
                break;
        }
    }

    void OnMouseClicked(Define.MouseEvent evt)
    {
        if (_state == PlayerState.Die) return;
        
        switch (evt)
        {
            case Define.MouseEvent.Down:
                Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
                Debug.DrawRay(Camera.main.transform.position, ray.direction*100.0f, Color.red, 1.0f);
            
                RaycastHit hit;
                if (Physics.Raycast(ray, out hit, 100.0f, LayerMask.GetMask("Ground")))
                {
                    _destPos = hit.point;
                    _state = PlayerState.Move;
                }
                break;
            case Define.MouseEvent.Up:
                break;
        }
        
        
    }

    void UpdateIdle()
    {
        _mAnimator.SetValue(AnimatorParam.speed, 0);
    }
    void UpdateMove()
    {
        Vector3 dir = _destPos - transform.position;
        if (dir.magnitude < 0.001f) _state = PlayerState.Idle;
        else
        {
            float moveDist = Mathf.Clamp(_speed * Time.deltaTime, 0, dir.magnitude);
            transform.position += dir.normalized * moveDist;

            Vector3 targetDir = new Vector3(dir.x, 0, dir.z).normalized;
            if(targetDir != Vector3.zero)
                transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.LookRotation(targetDir), 0.15f);
            
        }
        
        _mAnimator.SetValue(AnimatorParam.speed, _speed);
        
        
    }
    void UpdateAttack()
    {
        
    }
}