ICTS-Thiland/ictc/Unity3/Assets/UI/Screens/DownloadImageFromServer.cs

using System.Collections.Generic;
using UnityEngine;
using System.Collections;
using System;
using System.IO;
using SimpleJSON;
public class DownloadImageFromServer : MonoBehaviour {

	#region Unity Singleton

    private string URL = "https://game.gamatic.com/app_condom_th/full_screen_ads/";
    private static DownloadImageFromServer _instance;
	public List<string> URLBannerAdList;
	public List<Texture2D> textureBunnerAd = new List<Texture2D>();
    public static UITexture CurTextureBackground;
    public UITexture UiTextureAdTexture;
    // public List<string> URLBannerAdListLifja;
    //public List<Texture2D> textureBunnerAdLifja = new List<Texture2D>();
    public enum States
    {
        Idle,
        LoadConfig,
        ConfigLoadDone,
        ConfigLoadFailed,
        Loading,
        LoadFailed,
        LoadDone,
        Empty,
        HasTexture,
    }

    private List<ConfigUnit> _configs = new List<ConfigUnit>();

    public class ConfigUnit
    {
        public static bool Loading { get; private set; }

        public string PlaceholderUrl { get; set; }
        public Texture PlaceholderImage { get; private set; }
        public bool IsLoaded { get; private set; }

        public bool Broken { get; private set; }

        public ConfigUnit(JSONNode source)
        {
            PlaceholderUrl = source["PlaceholderURL"];
            IsLoaded = false;
        }

        public IEnumerator Download(DownloadImageFromServer parent)
        {
            parent.State = States.Loading;
            Loading = true;
            var www = new WWW(PlaceholderUrl);
            yield return www;
            if (string.IsNullOrEmpty(www.error))
            {
                IsLoaded = true;
                www.Dispose();
                parent.State = States.LoadDone;
            }
            else
            {
                Debug.LogError("Banner:[" + www.error + "|" + www.url + "]");
                parent.State = States.LoadFailed;
                Broken = true;
            }
            if (!string.IsNullOrEmpty(PlaceholderUrl))
            {
                www = new WWW(PlaceholderUrl);
                yield return www;

                if (string.IsNullOrEmpty(www.error))
                {
                    PlaceholderImage = www.texture;
                    parent.State = States.HasTexture;
                    CurTextureBackground.mainTexture = PlaceholderImage;
                }
            }
            Loading = false;
        }

        private string ExtractFileName(string url)
        {
            var arr = url.ToLower().Replace("\\", "/").Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
            return arr[arr.Length - 1];
        }


    }
    public States State;
    public bool Empty
    {
        get { return _configs.Count == 0; }
    }
    private void RequesNextAd()
    {
        if (Empty)
        {
            State = States.Empty;
            return;
        }

        if (!ConfigUnit.Loading)
        {
            System.Random rand = new System.Random();
            Adware.Instance.currentAdBannerIndex = rand.Next(0, _configs.Count);
            if (Adware.Instance.currentAdBannerIndex >= _configs.Count)
            {
                Adware.Instance.currentAdBannerIndex = 0;
            }
            //Debug.Log(_configs[Adware.Instance.currentAdBannerIndex].PlaceholderUrl);
            StartCoroutine(_configs[Adware.Instance.currentAdBannerIndex].Download(this));
            //NGUIMenuScript.Instance._currentAdIndex = UnityEngine.Random.Range(0, _configs.Count);
        }
        else
        {

        }
    }
    /// <summary>
    /// Path to server config
    /// </summary>
    public string ConfigURL;

    public void DownloadNextImage()
    {
        StartCoroutine(LoadConfig());
    }

    public IEnumerator LoadConfig()
    {
        State = States.LoadConfig;
        var www = new WWW(ConfigURL);
        yield return www;
        if (string.IsNullOrEmpty(www.error))
        {

            var source = www.text;
            //Debug.Log(source);
            var json = SimpleJSON.JSON.Parse(www.text)["Config"].AsArray;
            foreach (JSONNode media in json)
            {
                _configs.Add(new ConfigUnit(media));
            }
            State = States.ConfigLoadDone;

            RequesNextAd();
        }
        else
        {
            Debug.LogError("Bunner:[" + www.error + "]");
            State = States.ConfigLoadFailed;
        }
    }



    private ConfigUnit Currnent
    {
        get { return _configs[Adware.Instance.currentAdBannerIndex]; }
    }
    
	public static int Counter2 = 0;
	public static DownloadImageFromServer Instance
	{
		get
		{
			if (_instance == null)
			{
				_instance = FindObjectOfType(typeof(DownloadImageFromServer)) as DownloadImageFromServer;
				if (_instance == null)
				{
					AVDebug.LogError(string.Format("No gameObject with {0} component exists. Make sure to create a gameObject with {0} component", new System.Diagnostics.StackFrame().GetMethod().DeclaringType));
				}
			}

			return _instance;
		}
	}

	void Awake()
	{
		if (_instance != null && _instance != this)
		{
			AVDebug.LogWarning(string.Format("{0} Instance already exists on another gameObject. Destroying this gameObject {1}", this.GetType().Name, gameObject.name));
			Destroy(gameObject);
			return;
		}

		_instance = this;
		DontDestroyOnLoad(gameObject);
        if (CurTextureBackground == null && UiTextureAdTexture != null)
        {
            CurTextureBackground = UiTextureAdTexture;
        }
        ConfigURL = GameConstants.BANNER_ADS;

    
        _configs = new List<ConfigUnit>();
        StartCoroutine(LoadConfig());
    }
	#endregion
	void GetImages()
	{
		switch (MenuManager._instance.CurStateGameState)
		{
			case MenuManager.StateGameProduction.DurexLifja:
                
                foreach (var banner in URLBannerAdList)
				{
					GetImage(banner, (b, d) => textureBunnerAd.Add(d));
				}
                //foreach (var banner in URLBannerAdListLifja)
                //{
                //    GetImage(banner, (b, d) => textureBunnerAdLifja.Add(d));
                //}
                break;
			case MenuManager.StateGameProduction.None:
				break;

		}
	}
	private Hashtable _loadedImages = new Hashtable();

	public static void ClearImagesInMemory()
	{
		Instance._loadedImages = new Hashtable();
	}

	private IEnumerator LoadImageFromCache(string textureName, Action<Texture2D> onComplete)
	{

		string directoryPath = Application.persistentDataPath + "/imageCache";
		WWW w = new WWW("file://" + Path.GetFullPath(string.Format(@"{0}/{1}.png", directoryPath, textureName)));
		yield return w;
		onComplete(w.texture);
	}

	public static void GetImage(string url, Action<bool, Texture2D> onComplete)
	{
		string[] parsedTextureName = url.Split('/');
		string textureName = parsedTextureName[parsedTextureName.Length - 1].Split('.')[0];

		GetImage(url, textureName, onComplete);
	}

	public static void GetImage(string url, string textureName, Action<bool, Texture2D> onComplete)
	{
		if (textureName == null)
		{
			onComplete(false, null);
			return;
		}

		if (Instance._loadedImages.ContainsKey(textureName))
		{
			AVDebug.Log("Already got loaded image in memory: " + textureName);
			onComplete(true, (Texture2D)Instance._loadedImages[textureName]);
		}
		else
		//We cannot access files in WebPlayer			
/*#if !UNITY_WEBPLAYER && !UNITY_EDITOR
		if (File.Exists(string.Format("{0}/imageCache/{1}.png", Application.persistentDataPath, textureName)))
		{
			Debug.Log("Caching image from disk: " + textureName);
			if (onComplete != null)
			{
				Instance.StartCoroutine(Instance.LoadImageFromCache(textureName, (loadedTexture) => 
				{
					onComplete(true, loadedTexture);
					//There might have been dual asynch request to the same image. This avoids a crash
					if (!Instance._loadedImages.ContainsKey(textureName))
					{
						Instance._loadedImages.Add(textureName, loadedTexture);
					}
				}));
			}
		}
		else
#endif*/
		{
			AVDebug.Log("Downloading image from url: " + url);
		   
			Instance.StartCoroutine(Instance.DownloadImage(url, textureName, (success, downloadedTexture) =>
			{
			    
                if (onComplete != null)
				{
					onComplete(success, downloadedTexture);
				}
					if (Counter2 == 0)
			    {
                    //DownloadImageFromServer.Instance. GetTexture();
                }
					Counter2++;
            }));
		}
	}

	private int count;
	private IEnumerator DownloadImage(string url, string textureName, Action<bool, Texture2D> onComplete)
	{
		var s = WWW.EscapeURL(url);
        WWW w = new WWW(URL + s);
       // Debug.Log(w.url);
		yield return w;

		if (w.texture != null/* && !w.texture.IsBogus()*/)
		{
		
			count++;
			//Debug.Log("Downloaded " + url);
			Instance.SaveImage(w.texture, textureName);
			if (onComplete != null)
			{
				onComplete(true, w.texture);
			}
			if (URLBannerAdList.Count >= 0)
			{
				//GetTexture();
			}
		}
		else
		{
			//Debug.Log("Download failed for " + url);
			if (onComplete != null)
			{
				onComplete(false, null);
			}
		}
	}

	private bool SaveImage(Texture2D texture, string textureName)
	{
		//There might have been dual asynch request to the same image. This avoids a crash
		if (Instance._loadedImages.ContainsKey(textureName))
		{
			//already saved
			return true;
		}

		Instance._loadedImages.Add(textureName, texture);
		//We cannot access files in WebPlayer
#if !UNITY_WEBPLAYER && !UNITY_EDITOR
		string directoryPath = Application.persistentDataPath + "/imageCache";
		string fullPath = string.Format("{0}/{1}.png", directoryPath, textureName, ".png");
		if (File.Exists(fullPath))
		{
			return false;
		}
		
		if (!Directory.Exists(directoryPath))
		{
			Directory.CreateDirectory(directoryPath);
		}

		byte[] textureBytes = texture.EncodeToPNG();
		FileStream f = new FileStream(string.Format("{0}/{1}.png", directoryPath, textureName, ".png"), FileMode.Create, FileAccess.Write);
		f.Write(textureBytes, 0, textureBytes.Length);
		f.Flush();
		f.Close();
#endif
		return true;
	}
    public IEnumerator GetTextureRoutine()
    {
        yield return new WaitForSeconds(1f);
        RequesNextAd();
    }

    public void GetTexture()
    {
        StartCoroutine(GetTextureRoutine());
        
    }

    private int counter = 0;
	//public void GetTexture()
	//{
 //       switch (MenuManager._instance.CurStateGameState)
	//	{
	//		case MenuManager.StateGameProduction.DurexLifja:
	//		if (counter%2 == 0 && textureBunnerAd.Count>0)
	//	        {
 //                   CurTextureBackground.mainTexture = textureBunnerAd[counter];
 //               }
	//	        else
	//	        {
 //                   CurTextureBackground.mainTexture = textureBunnerAd[counter];
 //               }
	//			break;
	//		case MenuManager.StateGameProduction.None:
	//			//CurTextureBackground.mainTexture = textureBunnerAd[UnityEngine.Random.Range(0, textureBunnerAd.Count)];
	//			break;
	//	}
 //       if(counter > 2)
 //       {
 //           counter = 0;
 //       }
 //       else
 //       {
 //           counter++;
 //       }
 //   }
}