using Unity.Mathematics;
using UnityEngine;

public class PlayerController : MonoBehaviour
{
    [SerializeField]
    float _speed = 5.0f;

    private Vector3 _destPos;
    
    public enum PlayerState
    {
        Idle,
        Move,
        Die
    }
    
    PlayerState _playerState = PlayerState.Idle;
    
    void Start()
    {
        // Managers.Input.KeyAction -= OnKeyboard;
        // Managers.Input.KeyAction += OnKeyboard;
        Managers.Input.MouseAction -= OnMouseClicked;
        Managers.Input.MouseAction += OnMouseClicked;

        // Managers.Resource.Instantiate("UI/UI_Button");
        // Managers.UI.ShowPopupUI<UI_Button>("UI_Button");
        // Managers.UI.ClosePopupUI();
        
        //이게 안정 버전
        // UI_Button button = Managers.UI.ShowPopupUI<UI_Button>("UI_Button");
        // Managers.UI.ClosePopupUI(button);
        
        Managers.UI.ShowSceneUI<UI_Inven>("UI_Inven");
    }

    
    
    void UpdateIdle()
    {
        // 애니메이션 처리
        // wait_run_ratio = Mathf.Lerp(wait_run_ratio, 0.0f, 8.0f * Time.deltaTime);
        Animator anim = GetComponent<Animator>();
        anim.SetFloat("speed", 0);
    }
    void UpdateMove()
    {
        Vector3 dir = _destPos - transform.position;
        if (dir.magnitude < 0.001f)
        {
            _playerState = PlayerState.Idle;
        }
        else
        {
            float moveDist = Mathf.Clamp(_speed * Time.deltaTime, 0, dir.magnitude);
            transform.position += dir.normalized * moveDist;
            
            // 그래서 이렇게 부드럽게 회전
            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);
            }
        }
        
        // 애니메이션 처리
        // wait_run_ratio = Mathf.Lerp(wait_run_ratio, 1.0f, 8.0f * Time.deltaTime);
        Animator anim = GetComponent<Animator>();
        anim.SetFloat("speed", _speed);
    }

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

    void OnMouseClicked(Define.MouseEvent evt)
    {
        // 클릭 뿐 아니라 마우스 누르고 있어도 이동이 가능하게 하기 위해서 일단 날리기
        // if (evt != Define.MouseEvent.Click) return;
        if(_playerState == PlayerState.Die) return;
        
        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        Debug.DrawRay(Camera.main.transform.position, ray.direction * 100.0f, Color.blue, 1.0f);
            
        RaycastHit hit;
        if(Physics.Raycast(ray, out hit, 100.0f, LayerMask.GetMask("Wall")))
        {
            _destPos = hit.point;
            _playerState = PlayerState.Move;
        }
    }
    
    // void OnKeyboard()
    // {
    //     if (Input.GetKey(KeyCode.W)) { Move(Vector3.forward); }
    //     else if (Input.GetKey(KeyCode.S)) { Move(Vector3.back); }
    //     else if (Input.GetKey(KeyCode.A)) { Move(Vector3.left); }
    //     else if (Input.GetKey(KeyCode.D)) { Move(Vector3.right); }
    //     _moveToDest = false;
    // }
    // void Move(Vector3 vector)
    // {
    //     transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.LookRotation(vector), 0.15f);
    //     transform.position += vector * (Time.deltaTime * _speed);
    // }
    
    
    
}