using UnityEngine;
using System.Collections;

public class GarageDoor : MonoBehaviour
{
    [Header("Detection Settings")]
    [Tooltip("How close the player needs to be for the door to open.")]
    public float openDistance = 50f;

    [Header("Movement Settings")]
    [Tooltip("The physical door object that moves.")]
    public Transform doorMesh;
    [Tooltip("How far and in what direction the door slides when open (e.g., Y = 4.5 to slide up).")]
    public Vector3 openOffset = new Vector3(0f, 4.5f, 0f);
    public float moveSpeed = 3f;

    private Transform player;
    private Vector3 closedLocalPos;
    private Vector3 openLocalPos;
    
    private bool isOpen = false;
    private bool isClosedPermanently = false;

    void Start()
    {
        // If they didn't assign a child mesh, assume this object itself is the door
        if (doorMesh == null) doorMesh = this.transform;

        closedLocalPos = doorMesh.localPosition;
        openLocalPos = closedLocalPos + openOffset;

        // Automatically find the player
        GameObject p = GameObject.FindGameObjectWithTag("Player");
        if (p != null) player = p.transform;
    }

    void Update()
    {
        // Don't open again if the level has ended!
        if (isClosedPermanently || player == null) return;

        // Check distance to player
        float distance = Vector3.Distance(transform.position, player.position);

        if (distance <= openDistance && !isOpen)
        {
            OpenDoor();
        }
    }

    private void OpenDoor()
    {
        isOpen = true;
        StopAllCoroutines();
        StartCoroutine(AnimateDoor(openLocalPos));
    }

    /// <summary>
    /// Called by the SafeHouseTrigger when the player parks inside.
    /// </summary>
    public void CloseDoor()
    {
        isClosedPermanently = true; // Locks the door so it doesn't open again
        StopAllCoroutines();
        StartCoroutine(AnimateDoor(closedLocalPos));
    }

    private IEnumerator AnimateDoor(Vector3 targetLocalPos)
    {
        while (Vector3.Distance(doorMesh.localPosition, targetLocalPos) > 0.01f)
        {
            // Smoothly slide the door to the target position
            doorMesh.localPosition = Vector3.Lerp(doorMesh.localPosition, targetLocalPos, Time.deltaTime * moveSpeed);
            yield return null;
        }
        doorMesh.localPosition = targetLocalPos;
    }
}