using UnityEngine;
using UnityEngine.XR.ARFoundation;
using UnityEngine.XR.ARSubsystems;
using System.Collections;

namespace Ninsar.AR
{
    public class ARController : MonoBehaviour
    {
        public ARSessionOrigin ARSessionOrigin;
        public ARTrackedImageManager TrackedImageManager;
        private bool isTracked = false;
        public Transform Content;

        private void OnTrackedImagesChanged(ARTrackedImagesChangedEventArgs args)
        {
            foreach (var trackedImage in args.updated)
            {
                if (trackedImage.trackingState != TrackingState.Tracking) continue;

                ARSessionOrigin.MakeContentAppearAt(
                    Content, trackedImage.transform.position, trackedImage.transform.localRotation
                );
                Content.gameObject.SetActive(true);
                if(isTracked == false)
                    StartCoroutine(sessionDisable());
                break;
            }
        }
        private IEnumerator sessionDisable()
        {
            isTracked = true;
            yield return new WaitForSeconds(2f);
            TrackedImageManager.trackedImagesChanged -= OnTrackedImagesChanged;
        }

        private void OnEnable()
        {
            TrackedImageManager.trackedImagesChanged += OnTrackedImagesChanged;
            Content.gameObject.SetActive(false);
        }

        private void OnDisable()
        {
            TrackedImageManager.trackedImagesChanged -= OnTrackedImagesChanged;
        }
    }
}