using UnityEngine;
using UnityEngine.InputSystem.Controls;

public class LeverController : MonoBehaviour
{
    public enum Axis
    {
        forward,
        right,
        up,
    }
    public Axis RotationAxis;
    public float maxAngle = 45f;  // ·¹¹öÀÇ ÃÖ´ë °¢µµ
    public float minAngle = -45f;  // ·¹¹öÀÇ ÃÖ¼Ò °¢µµ
    public float sensitivity = 0.2f;  // ¸¶¿ì½º ¿òÁ÷ÀÓ¿¡ ´ëÇÑ ¹Î°¨µµ
    private Vector3 rotationAxis;  // ȸÀüÃà (±âº»°ª: XÃà)



    /// <summary>
    /// µå·¡±× °¡´É ¿©ºÎ
    /// </summary>
    private bool isDragging = false;
    /// <summary>
    /// ·¹¹ö°¡ ¹Ø¿¡ ÀÖ´ÂÁö ¾Æ·¡ÀÖ´ÂÁö ÆÇ´Ü
    /// </summary>
    private bool isDown = false;
    private bool isRun = false;
    private float startMouseY;
    private float startAngle;


    private int layerMask;


    private  float time = 0;
    private Quaternion downTargetRos;
    private Quaternion upTargetRos;
    private float speed = 10;
    private void Start()
    {
        Quaternion q = transform.localRotation;
        layerMask = 1 << LayerMask.NameToLayer("Train");
        if (RotationAxis == Axis.forward)
        {
            rotationAxis = Vector3.forward;
            downTargetRos = q * Quaternion.Euler(0,0, maxAngle);
            upTargetRos =q * Quaternion.Euler(0, 0, minAngle);
            
        }
        else if (RotationAxis == Axis.right)
        {
            rotationAxis = Vector3.right;
            downTargetRos = q * Quaternion.Euler(maxAngle, 0, 0);
            upTargetRos = q * Quaternion.Euler(minAngle, 0, 0);
        }
        else if (RotationAxis == Axis.up)
        {
            rotationAxis = Vector3.up;
            downTargetRos = q * Quaternion.Euler(0, maxAngle, 0);
            upTargetRos = q * Quaternion.Euler(0, minAngle, 0);
        }
    }


    public void OnDrag()
    {
        isDragging = true;
        startMouseY = Input.mousePosition.y;
        startAngle = transform.localRotation.eulerAngles.z;
        if (startAngle > 180) startAngle -= 360;  // -180¿¡¼­ 180 »çÀÌÀÇ °¢µµ·Î º¯È¯
    }

    public void OffDrag()
    {
        isDragging = false;
    }

    public void OnClick()
    {
        isRun = true;
        isDown = !isDown;
    }

    private void Update()
    {


        if (isDragging)
        {
            float mouseDelta = Input.mousePosition.y - startMouseY;
            float newAngle = startAngle - mouseDelta * sensitivity;

            // ·¹¹öÀÇ °¢µµ¸¦ Á¦ÇÑµÈ ¹üÀ§ ³»·Î Á¶Á¤
            newAngle = Mathf.Clamp(newAngle, minAngle, maxAngle);
            Vector3 currentRotation = transform.localRotation.eulerAngles;
            if (RotationAxis == Axis.forward)
            {
                currentRotation.z = newAngle;
            }
            else if (RotationAxis == Axis.right)
            {
                currentRotation.x = newAngle;
            }
            else if (RotationAxis == Axis.up)
            {
                currentRotation.y = newAngle;
            }

            // »õ·Î¿î ȸÀü Àû¿ë
            transform.localRotation = Quaternion.Euler(currentRotation);
        }

        if (isRun)
        {
            time = Time.deltaTime * speed;
            if (isDown)
            {
                transform.localRotation = Quaternion.Slerp(transform.localRotation, upTargetRos,time );
            }
            else
            {
                transform.localRotation = Quaternion.Slerp(transform.localRotation, downTargetRos, time);
            }
       
        }

    }
}