using UnityEngine;

[RequireComponent(typeof(Collider))]
public class TeleportPoint : MonoBehaviour
{
    [Header("Destination")]
    public Transform destination;                 // set this to SkyCity_Spawn or any target

    [Header("Filtering")]
    public string requiredTag = "Player";         // only teleport objects with this tag

    [Header("Behavior")]
    public bool matchRotation = true;
    [Tooltip("Shared ID for A<->B portals to avoid instant ping-pong.")]
    public string portalId = "SkyCityGate";
    [Tooltip("Seconds the entity cannot re-trigger a portal after using one.")]
    public float reentryCooldown = 0.5f;

    private void Reset()
    {
        var c = GetComponent<Collider>();
        c.isTrigger = true;
    }

    private void OnTriggerEnter(Collider other)
    {
        if (!IsAllowed(other.gameObject)) return;

        var tm = TeleportManager.Instance;
        if (tm == null) { Debug.LogWarning("[TeleportPoint] No TeleportManager in scene."); return; }

        if (!tm.CanUsePortal(other.gameObject, portalId, reentryCooldown)) return;

        tm.MarkUsed(other.gameObject, portalId, reentryCooldown);
        tm.Teleport(other.gameObject, destination, matchRotation);
    }

    private bool IsAllowed(GameObject go)
    {
        if (!string.IsNullOrEmpty(requiredTag) && !go.CompareTag(requiredTag))
            return false;

        if (destination == null)
        {
            Debug.LogWarning($"[TeleportPoint] '{name}' has no destination assigned.");
            return false;
        }

        return true;
    }

#if UNITY_EDITOR
    private void OnDrawGizmos()
    {
        if (destination == null) return;
        Gizmos.color = Color.cyan;
        Gizmos.DrawWireSphere(transform.position, 0.3f);
        Gizmos.DrawLine(transform.position, destination.position);
        Gizmos.DrawWireSphere(destination.position, 0.3f);
    }
#endif
}