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

/// This component listens for images detected by the <c>XRImageTrackingSubsystem</c>
/// and overlays some information as well as the source Texture2D on top of the
/// detected image.
/// </summary>
[RequireComponent(typeof(ARTrackedImageManager))]
public class TrackedImageInfoManager : MonoBehaviour
{
    //private Dictionary<string, DateTime> lastLoggings = new Dictionary<string, DateTime>();

    //[SerializeField]
    //[Tooltip("The different sprites used for each imagetracked target.")]
    //private Sprite[] sprites;
    [SerializeField]
    [Tooltip("The camera to set on the world space UI canvas for each instantiated image info.")]
    Camera m_WorldSpaceCanvasCamera;

    /// <summary>
    /// The prefab has a world space UI canvas,
    /// which requires a camera to function properly.
    /// </summary>
    public Camera worldSpaceCanvasCamera
    {
        get { return m_WorldSpaceCanvasCamera; }
        set { m_WorldSpaceCanvasCamera = value; }
        
    }

    [SerializeField]
    [Tooltip("If an image is detected but no source texture can be found, this texture is used instead.")]
    Texture2D m_DefaultTexture;

    /// <summary>
    /// If an image is detected but no source texture can be found,
    /// this texture is used instead.
    /// </summary>
    public Texture2D defaultTexture
    {
        get { return m_DefaultTexture; }
        set { m_DefaultTexture = value; }
        
    }

    ARTrackedImageManager m_TrackedImageManager;

    void Awake()
    {
        m_TrackedImageManager = GetComponent<ARTrackedImageManager>();
    }

    void OnEnable()
    {
        m_TrackedImageManager.trackedImagesChanged += OnTrackedImagesChanged;
    }

    void OnDisable()
    {
        m_TrackedImageManager.trackedImagesChanged -= OnTrackedImagesChanged;
        
    }
    //void Update()
    //{
    //    foreach (var item in lastLoggings)
    //    {
    //        if ((DateTime.Now - item.Value).Seconds > 0)
    //        {
    //            ARTrackedImage aRTrackedImage = null;
    //            foreach (var trackable in m_TrackedImageManager.trackables)
    //            {
    //                if (trackable.name == item.Key)
    //                {
    //                    aRTrackedImage = trackable;
    //                    break;
    //                }
    //            }
    //            if (aRTrackedImage)
    //            {
    //                //slet her
    //                aRTrackedImage.gameObject.SetActive(false);
    //            }
    //        }
    //    }
    //}
    void UpdateInfo(ARTrackedImage trackedImage)
    {
        // Set canvas camera
        var canvas = trackedImage.GetComponentInChildren<Canvas>();
        canvas.worldCamera = worldSpaceCanvasCamera;

        // Update information about the tracked image
        var text = canvas.GetComponentInChildren<Text>();
        //Image image = canvas.GetComponentInChildren<Image>();

        //Use something like this to get the name of the image
        //Debug.Log("trackedImage name " + trackedImage.referenceImage.name.ToString());

        //text.text = string.Format(
        //    "{0}\ntrackingState: {1}\nGUID: {2}\nReference size: {3} cm\nDetected size: {4} cm",
        //    trackedImage.referenceImage.name,
        //    trackedImage.trackingState,
        //    trackedImage.referenceImage.guid,
        //    trackedImage.referenceImage.size * 100f,
        //    trackedImage.size * 100f);


        var planeParentGo = trackedImage.transform.GetChild(0).gameObject;
        var planeGo = planeParentGo.transform.GetChild(0).gameObject;

        Debug.Log("trackingState is " + trackedImage.trackingState);

        if (trackedImage.referenceImage.name == "smed1")
        {
            if (PlayerPrefs.GetInt("Blacksmith") == 0)
            {
                PlayerPrefs.SetInt("Blacksmith", 1);
            }
            text.text = "Dette er en test på billede " + trackedImage.referenceImage.name;
        }
        else if (trackedImage.referenceImage.name == "lejlighed2")
        {
            if (PlayerPrefs.GetInt("Apartment") == 0)
            {
                PlayerPrefs.SetInt("Apartment", 1);
            }
            text.text = "Dette er en test på billede " + trackedImage.referenceImage.name;
        }
        else if (trackedImage.referenceImage.name == "butiksgade3")
        {
            if (PlayerPrefs.GetInt("Shop") == 0)
            {
                PlayerPrefs.SetInt("Shop", 1);
            }
            text.text = "Dette er en test på billede " + trackedImage.referenceImage.name;
        }
        else if (trackedImage.referenceImage.name == "bogtrykkeriet4")
        {
            if (PlayerPrefs.GetInt("printingpress") == 0)
            {
                PlayerPrefs.SetInt("Printingpress", 1);
            }
            text.text = "Dette er en test på billede " + trackedImage.referenceImage.name;
        }
        else if (trackedImage.referenceImage.name == "tobaksfabrikken5")
        {
            if (PlayerPrefs.GetInt("Tobacco") == 0)
            {
                PlayerPrefs.SetInt("Tobacco", 1);
            }
            text.text = "Dette er en test på billede " + trackedImage.referenceImage.name;
        }
        else if (trackedImage.referenceImage.name == "banken6")
        {
            if (PlayerPrefs.GetInt("Bank") == 0)
            {
                PlayerPrefs.SetInt("Bank", 1);
            }
            text.text = "Dette er en test på billede " + trackedImage.referenceImage.name;
        }
        else if (trackedImage.referenceImage.name == "skolen7")
        {
            if (PlayerPrefs.GetInt("School") == 0)
            {
                PlayerPrefs.SetInt("School", 1);
            }
            text.text = "Dette er en test på billede " + trackedImage.referenceImage.name;
        }

        //Disable the visual plane if it is not being tracked
        if (trackedImage.trackingState != TrackingState.None)
        {
            planeGo.SetActive(true);

            // The image extents is only valid when the image is being tracked
            trackedImage.transform.localScale = new Vector3(trackedImage.size.x, 1f, trackedImage.size.y);

            // Set the texture
            var material = planeGo.GetComponentInChildren<MeshRenderer>().material;
            material.mainTexture = (trackedImage.referenceImage.texture == null) ? defaultTexture : trackedImage.referenceImage.texture;
        }
        else
        {
            planeGo.SetActive(false);
            
        }
    }

    void OnTrackedImagesChanged(ARTrackedImagesChangedEventArgs eventArgs)
    {
        eventArgs.removed.ForEach(x => Debug.Log("removed: " + x.name + " Count: " + eventArgs.removed.Count));
        eventArgs.added.ForEach(x => Debug.Log("added: " + x.name + " Count: " + eventArgs.added.Count));
        eventArgs.updated.ForEach(x => Debug.Log("update: " + x.name + " Count: " + eventArgs.updated.Count));
        foreach (var trackedImage in eventArgs.added)
        {
            // Give the initial image a reasonable default scale
            trackedImage.transform.localScale = new Vector3(1f, 1f, 1f);
            //lastLoggings.Add(trackedImage.name, DateTime.Now);
            UpdateInfo(trackedImage);
            Debug.Log("image target name: " + trackedImage.name);
        }

        foreach (var trackedImage in eventArgs.updated)
        {
            UpdateInfo(trackedImage);
            Debug.Log("image target name: " + trackedImage.name);
            //string name = trackedImage.name;
            //if (trackedImage.name != name)
            //{
            //    trackedImage.gameObject.SetActive(false);
            //}
            //TEST
            //if (lastLoggings.ContainsKey(trackedImage.name))
            //{
            //    lastLoggings[trackedImage.name] = DateTime.Now;
            //}
        }
        foreach (var trackedImage in eventArgs.removed)
        {
            Debug.Log("image target name: " + trackedImage.name);
        }
    }
}