using System.Collections;
using UnityEngine;

public class VRDoorController : MonoBehaviour
{
    [Header("ドアオブジェクト")]
    [SerializeField] private Transform leftDoor;
    [SerializeField] private Transform rightDoor;

    [Header("動作設定")]
    [SerializeField] private float slideDistance = 1.0f;
    [SerializeField] private float openSpeed = 1.2f;
    [SerializeField] private float autoCloseDelay = 4.0f;

    private Vector3 leftDoorClosedPos;
    private Vector3 rightDoorClosedPos;
    private Vector3 leftDoorOpenPos;
    private Vector3 rightDoorOpenPos;

    private bool isOpen;
    private bool isMoving;

    private void Start()
    {
        if (leftDoor != null)
        {
            leftDoorClosedPos = leftDoor.localPosition;
            leftDoorOpenPos = leftDoorClosedPos + new Vector3(-slideDistance, 0, 0);
        }

        if (rightDoor != null)
        {
            rightDoorClosedPos = rightDoor.localPosition;
            rightDoorOpenPos = rightDoorClosedPos + new Vector3(slideDistance, 0, 0);
        }
    }

    public void OnButtonPress()
    {
        if (isMoving || isOpen) return;
        StartCoroutine(OpenAndAutoCloseRoutine());
    }

    private IEnumerator OpenAndAutoCloseRoutine()
    {
        isMoving = true;
        float elapsedTime = 0f;

        while (elapsedTime < openSpeed)
        {
            elapsedTime += Time.deltaTime;
            float t = elapsedTime / openSpeed;
            float easedT = Mathf.SmoothStep(0f, 1f, t);

            if (leftDoor != null) leftDoor.localPosition = Vector3.Lerp(leftDoorClosedPos, leftDoorOpenPos, easedT);
            if (rightDoor != null) rightDoor.localPosition = Vector3.Lerp(rightDoorClosedPos, rightDoorOpenPos, easedT);

            yield return null;
        }

        if (leftDoor != null) leftDoor.localPosition = leftDoorOpenPos;
        if (rightDoor != null) rightDoor.localPosition = rightDoorOpenPos;

        isOpen = true;
        isMoving = false;

        yield return new WaitForSeconds(autoCloseDelay);

        isMoving = true;
        isOpen = false;
        elapsedTime = 0f;

        while (elapsedTime < openSpeed)
        {
            elapsedTime += Time.deltaTime;
            float t = elapsedTime / openSpeed;
            float easedT = Mathf.SmoothStep(0f, 1f, t);

            if (leftDoor != null) leftDoor.localPosition = Vector3.Lerp(leftDoorOpenPos, leftDoorClosedPos, easedT);
            if (rightDoor != null) rightDoor.localPosition = Vector3.Lerp(rightDoorOpenPos, rightDoorClosedPos, easedT);

            yield return null;
        }

        if (leftDoor != null) leftDoor.localPosition = leftDoorClosedPos;
        if (rightDoor != null) rightDoor.localPosition = rightDoorClosedPos;

        isMoving = false;
    }
}