using System.Collections;
using UnityEngine;

public class JunpyoRunToPoint : MonoBehaviour
{
    [Header("Junpyo")]
    [SerializeField] private Transform junpyo;

    [Header("Target")]
    [SerializeField] private Transform junpyoStopPoint;

    [Header("Movement")]
    [SerializeField] private float moveDuration = 1.2f;
    [SerializeField] private bool faceMoveDirection = true;

    private bool isMoving;
    private bool hasMoved;

    // 대화가 시작될 때 호출
    public void RunToStopPoint()
    {
        if (isMoving || hasMoved)
            return;

        if (junpyo == null || junpyoStopPoint == null)
        {
            Debug.LogWarning("구준표 또는 JunpyoStopPoint가 연결되지 않았습니다.");
            return;
        }

        hasMoved = true;
        StartCoroutine(MoveRoutine());
    }

    private IEnumerator MoveRoutine()
    {
        isMoving = true;

        Vector3 startPosition = junpyo.position;
        Quaternion startRotation = junpyo.rotation;

        Vector3 targetPosition = junpyoStopPoint.position;
        targetPosition.y = startPosition.y;

        Vector3 direction = targetPosition - startPosition;
        direction.y = 0f;

        Quaternion targetRotation = startRotation;

        if (faceMoveDirection && direction.sqrMagnitude > 0.001f)
            targetRotation = Quaternion.LookRotation(direction.normalized);

        float elapsed = 0f;

        while (elapsed < moveDuration)
        {
            elapsed += Time.deltaTime;
            float t = Mathf.Clamp01(elapsed / moveDuration);

            junpyo.position = Vector3.Lerp(
                startPosition,
                targetPosition,
                t
            );

            if (faceMoveDirection)
            {
                junpyo.rotation = Quaternion.Slerp(
                    startRotation,
                    targetRotation,
                    t
                );
            }

            yield return null;
        }

        // 마지막 위치를 정확하게 맞춤
        junpyo.position = targetPosition;

        if (faceMoveDirection)
            junpyo.rotation = targetRotation;

        isMoving = false;
    }

    public void ResetMovement()
    {
        hasMoved = false;
        isMoving = false;
    }

    [ContextMenu("Test Run")]
    private void TestRun()
    {
        RunToStopPoint();
    }

    [ContextMenu("Reset Run")]
    private void TestResetRun()
    {
        ResetMovement();
    }
}