using UnityEngine;
using System.IO;
using System.Runtime.InteropServices;
using Random = UnityEngine.Random;

public class NativeShare  {

    public static void Share(string shareText, Texture2D image)
    {
        var bytes = image.EncodeToPNG();
        var path = Application.persistentDataPath + "/" + CreateRandomScreenshotFileName();
        File.WriteAllBytes(path,bytes);
        Debug.LogWarning(path);
        Share(shareText,path,"");
    }

    private static string CreateRandomScreenshotFileName()
    {
        var arr = "abcdefghijklmnopqrstuvwxyz".ToCharArray();
        var result = string.Empty;
        for (int i = 0; i < 15; i++)
        {
            result += arr[Random.Range(0, arr.Length)];
        }
        return result + ".png";
    }

    public static void Share(string shareText, string imagePath, string url, string subject = "")
	{
#if UNITY_ANDROID
		AndroidJavaClass intentClass = new AndroidJavaClass("android.content.Intent");
		AndroidJavaObject intentObject = new AndroidJavaObject("android.content.Intent");
		
		intentObject.Call<AndroidJavaObject>("setAction", intentClass.GetStatic<string>("ACTION_SEND"));
		AndroidJavaClass uriClass = new AndroidJavaClass("android.net.Uri");
		AndroidJavaObject uriObject = uriClass.CallStatic<AndroidJavaObject>("parse", "file://" + imagePath);
		intentObject.Call<AndroidJavaObject>("putExtra", intentClass.GetStatic<string>("EXTRA_STREAM"), uriObject);
		intentObject.Call<AndroidJavaObject>("setType", "image/png");
		
		intentObject.Call<AndroidJavaObject>("putExtra", intentClass.GetStatic<string>("EXTRA_TEXT"), shareText);
		
		AndroidJavaClass unity = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
		AndroidJavaObject currentActivity = unity.GetStatic<AndroidJavaObject>("currentActivity");
		
		AndroidJavaObject jChooser = intentClass.CallStatic<AndroidJavaObject>("createChooser", intentObject, subject);
		currentActivity.Call("startActivity", jChooser);
#elif UNITY_IOS
		//CallSocialShareAdvanced(shareText, subject, url, imagePath);
#else
		Debug.Log("No sharing set up for this platform.");
#endif
	}

#if UNITY_IOS
	/*public struct ConfigStruct
	{
		public string title;
		public string message;
	}

	[DllImport ("__Internal")] private static extern void showAlertMessage(ref ConfigStruct conf);
	
	public struct SocialSharingStruct
	{
		public string text;
		public string url;
		public string image;
		public string subject;
	}
	
	[DllImport ("__Internal")] private static extern void showSocialSharing(ref SocialSharingStruct conf);
	
	public static void CallSocialShare(string title, string message)
	{
		ConfigStruct conf = new ConfigStruct();
		conf.title  = title;
		conf.message = message;
		showAlertMessage(ref conf);
	}

	public static void CallSocialShareAdvanced(string defaultTxt, string subject, string url, string img)
	{
		SocialSharingStruct conf = new SocialSharingStruct();
		conf.text = defaultTxt; 
		conf.url = url;
		conf.image = img;
		conf.subject = subject;
		
		showSocialSharing(ref conf);
	}*/
#endif
}