using UnityEngine;
using System.Collections.Generic;
using UnityEngine.XR;
using System.Collections;

public class EyesManager : MonoBehaviour
{
    private static EyesManager _instance;
    public static EyesManager GetInstance() => _instance;

    public List<HallucinationsEye> allEyes = new List<HallucinationsEye>();
    public Transform player;

    [Header("Watch Settings")]
    public float fieldOfViewAngle = 90f;
    public float watchDistance = 10f;

    private void Awake()
    {
        if (_instance == null)
            _instance = this;
    }

    private void Start()
    {
        StartCoroutine(AfterGameLoaded());
    }

    IEnumerator AfterGameLoaded()
    {
        yield return new WaitUntil(() => LoadManager.GetInstance() != null && !LoadManager.GetInstance().LoadingGame);
        yield return new WaitUntil(() => PlayerManager.GetInstance() != null);
        player = PlayerManager.GetInstance().playerGameObj.transform;
        //GetAllEyes();
    }

    private void Update()
    {
        foreach (HallucinationsEye eye in allEyes)
        {
            if (eye != null && eye.IsAlive)
            {
                eye.CheckPlayerVisibility(player, fieldOfViewAngle, watchDistance);
            }
        }
    }

    public bool IsPlayerWatched()
    {
        foreach (HallucinationsEye eye in allEyes)
        {
            if (eye != null && eye.IsWatching)
                return true;
        }
        return false;
    }

    public void RegisterEye(HallucinationsEye eye)
    {
        if (!allEyes.Contains(eye))
            allEyes.Add(eye);
        Debug.Log("Registered Eye: " + eye.name);
    }

    public void UnregisterEye(HallucinationsEye eye)
    {
        if (allEyes.Contains(eye))
            allEyes.Remove(eye);
         Debug.Log("UnregisterEye Eye: " + eye.name);
    }


    /// <summary>
    /// Επιστρέφει true αν στο δεδομένο GameObject υπάρχει έστω ένα ζωντανό μάτι.
    /// </summary>
    public bool IsAnyEyeAliveOn(GameObject go)
    {
        var eyes = go.GetComponentsInChildren<HallucinationsEye>();
        foreach (var e in eyes)
            if (e.IsAlive) return true;
        return false;
    }

    public List<HallucinationsEye> GetAllEyes()
    {
        return allEyes; // Υποθέτουμε ότι τα αποθηκεύεις
    }
}