using UnityEngine;
using Vuforia;

public class ActivateObjectOnThreeTargets : MonoBehaviour
{
    public ObserverBehaviour ImageTarget1;
    public ObserverBehaviour ImageTarget2;
    public ObserverBehaviour ImageTarget3;

    public GameObject ObjectToActivate;
    public GameObject Object1;
    public GameObject Object2;
    public GameObject Object3;

    public float yOffset = 0.2f;
    public float distanceThreshold = 1.12f;

    private bool hasDisabledObjects = false;

    void Update()
    {
        bool isTracked1 = IsTracked(ImageTarget1);
        bool isTracked2 = IsTracked(ImageTarget2);
        bool isTracked3 = IsTracked(ImageTarget3);

        bool allTracked = isTracked1 && isTracked2 && isTracked3;

        float d12 = Vector3.Distance(ImageTarget1.transform.position, ImageTarget2.transform.position);
        float d13 = Vector3.Distance(ImageTarget1.transform.position, ImageTarget3.transform.position);
        float d23 = Vector3.Distance(ImageTarget2.transform.position, ImageTarget3.transform.position);

        float avgDistance = (d12 + d13 + d23) / 3f;
        bool isCloseEnough = avgDistance <= distanceThreshold;

        bool shouldActivate = allTracked && isCloseEnough;

        if (shouldActivate)
        {
            if (!hasDisabledObjects)
            {
                Object1.SetActive(false);
                Object2.SetActive(false);
                Object3.SetActive(false);
                hasDisabledObjects = true;
            }

            Vector3 midPos = (ImageTarget1.transform.position + ImageTarget2.transform.position + ImageTarget3.transform.position) / 3f;
            midPos.y += yOffset;
            ObjectToActivate.transform.position = midPos;
        }
        else
        {
            if (!ObjectToActivate.activeSelf && hasDisabledObjects)
            {
                Object1.SetActive(true);
                Object2.SetActive(true);
                Object3.SetActive(true);
                hasDisabledObjects = false;
            }
        }

        ObjectToActivate.SetActive(shouldActivate);
    }

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