/******************************************************************************
 * OpenLP - Open Source Lyrics Projection                                      *
 * --------------------------------------------------------------------------- *
 * Copyright (c) 2011-2016 OpenLP Android Developers                           *
 * --------------------------------------------------------------------------- *
 * This program is free software; you can redistribute it and/or modify it     *
 * under the terms of the GNU General Public License as published by the Free  *
 * Software Foundation; version 2 of the License.                              *
 *                                                                             *
 * This program is distributed in the hope that it will be useful, but WITHOUT *
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or       *
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for    *
 * more details.                                                               *
 *                                                                             *
 * You should have received a copy of the GNU General Public License along     *
 * with this program; if not, write to the Free Software Foundation, Inc., 59  *
 * Temple Place, Suite 330, Boston, MA 02111-1307 USA                          *
 *******************************************************************************/
package org.openlp.android2.common;

import android.content.Context;
import android.graphics.Bitmap;
import android.util.Base64;
import android.util.LruCache;

import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.toolbox.HurlStack;
import com.android.volley.toolbox.ImageLoader;
import com.android.volley.toolbox.Volley;

import java.util.HashMap;
import java.util.Map;

public class RequestQueueService {

    private static RequestQueueService mInstance;
    private RequestQueue mRequestQueue;
    private ImageLoader mImageLoader;
    private static Context mCtx;

    private RequestQueueService(Context context) {
        mCtx = context;
        mRequestQueue = getRequestQueue();

        mImageLoader = new ImageLoader(mRequestQueue,
            new ImageLoader.ImageCache() {
                private final LruCache<String, Bitmap> cache = new LruCache<String, Bitmap>(20);

                @Override
                public Bitmap getBitmap(String url) {
                    return cache.get(url);
                }

                @Override
                public void putBitmap(String url, Bitmap bitmap) {
                    cache.put(url, bitmap);
                }
            });
    }

    public static synchronized RequestQueueService getInstance(Context context) {
        if (mInstance == null) {
            mInstance = new RequestQueueService(context);
        }
        return mInstance;
    }

    public RequestQueue getRequestQueue() {
        if (mRequestQueue == null) {
            // getApplicationContext() is key, it keeps you from leaking the
            // Activity or BroadcastReceiver if someone passes one in.
            mRequestQueue = Volley.newRequestQueue(mCtx.getApplicationContext());
        }
        return mRequestQueue;
    }

    public String getUrl(String url){
        return String.format("%s%s", OpenLPURLBuilder.getInstance().getBaseUrl(), url );
    }

    public String getBasicAuth(){
        return OpenLPURLBuilder.getInstance().getBasicAuth();
    }

    public int getConnectionTimeout(){
        return OpenLPURLBuilder.getInstance().getConnectionTimeout();
    }

    public <T> void addToRequestQueue(Request<T> req) {
        getRequestQueue().add(req);
    }

    public ImageLoader getImageLoader() {
        return mImageLoader;
    }
}