using UnityEngine;
using Vuforia;
using System.Collections.Generic;

public class ActivateObjectOnTargetTracking : MonoBehaviour
{
    [System.Serializable]
    public class MarkerCombination
    {
        public ObserverBehaviour marker1;
        public ObserverBehaviour marker2;
        public GameObject originalObject1;
        public GameObject originalObject2;
        public GameObject combinedObject;
    }

    public List<MarkerCombination> combinations;
    public float yOffset = 0.2f;
    public float distanceThreshold = 2f;

    public GameObject plusIcon; // Ikon +

    private List<GameObject> hiddenOriginals = new List<GameObject>();

    private bool IsTracked(ObserverBehaviour trackable)
    {
        return trackable != null && trackable.TargetStatus.Status == Status.TRACKED;
    }

    void Update()
    {
        hiddenOriginals.Clear();
        List<MarkerCombination> validCombos = new List<MarkerCombination>();
        bool showPlusIcon = false;
        Vector3 plusIconPosition = Vector3.zero;

        foreach (var combo in combinations)
        {
            if (combo.marker1 == null || combo.marker2 == null || combo.combinedObject == null)
                continue;

            bool isMarker1Tracked = IsTracked(combo.marker1);
            bool isMarker2Tracked = IsTracked(combo.marker2);

            if (isMarker1Tracked || isMarker2Tracked)
            {
                float distance = Vector3.Distance(combo.marker1.transform.position, combo.marker2.transform.position);
                bool isCloseEnough = distance <= distanceThreshold;

                if (isMarker1Tracked && isMarker2Tracked && isCloseEnough)
                {
                    validCombos.Add(combo);
                }
                else if (isMarker1Tracked && isMarker2Tracked && !isCloseEnough)
                {
                    // Jika marker terdeteksi dan berjauhan, tampilkan ikon +
                    showPlusIcon = true;
                    plusIconPosition = (combo.marker1.transform.position + combo.marker2.transform.position) / 2;
                    plusIconPosition.y += yOffset;
                }
            }
        }

        // Nonaktifkan semua combinedObject terlebih dahulu
        foreach (var combo in combinations)
        {
            if (combo.combinedObject != null)
                combo.combinedObject.SetActive(false);
        }

        if (validCombos.Count > 0)
        {
            var combo = validCombos[0];
            if (combo.originalObject1 != null)
            {
                combo.originalObject1.SetActive(false);
                hiddenOriginals.Add(combo.originalObject1);
            }

            if (combo.originalObject2 != null)
            {
                combo.originalObject2.SetActive(false);
                hiddenOriginals.Add(combo.originalObject2);
            }

            Vector3 midPosition = (combo.marker1.transform.position + combo.marker2.transform.position) / 2;
            midPosition.y += yOffset;

            combo.combinedObject.transform.position = midPosition;
            combo.combinedObject.SetActive(true);
        }

        // Tampilkan atau sembunyikan ikon +
        if (plusIcon != null)
        {
            plusIcon.SetActive(showPlusIcon);
            if (showPlusIcon)
                plusIcon.transform.position = plusIconPosition;
        }

        // Aktifkan kembali original objects jika tidak disembunyikan oleh kombinasi valid
        foreach (var combo in combinations)
        {
            if (combo.originalObject1 != null && !hiddenOriginals.Contains(combo.originalObject1) && IsTracked(combo.marker1))
                combo.originalObject1.SetActive(true);

            if (combo.originalObject2 != null && !hiddenOriginals.Contains(combo.originalObject2) && IsTracked(combo.marker2))
                combo.originalObject2.SetActive(true);
        }
    }
}