/*

 *  Copyright (C) 2020, University of the Basque Country (UPV/EHU)

 *
 * Contact for licensing options: <licensing-mcpttclient(at)mcopenplatform(dot)com>
 *
 * This file is part of MCOP MCPTT Client
 *
 * This 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, either version 3
 * of the License, or (at your option) any later version.
 *
 * This 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.doubango.ngn.services.impl.mbms;
 
 import android.content.Context;
 import android.support.annotation.NonNull;
 import android.util.Log;
 
 import org.doubango.ngn.datatype.mbms.McpttMbmsUsageInfoType;
 import org.doubango.utils.Utils;
 import org.simpleframework.xml.Serializer;
 import org.simpleframework.xml.convert.AnnotationStrategy;
 import org.simpleframework.xml.core.Persister;
 import org.simpleframework.xml.strategy.Strategy;
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.Calendar;
 
 
 class MbmsUtils {
     private final static String TAG = Utils.getTAG(MbmsUtils.class.getCanonicalName());
 
 
 
     //INIT utils xml
 
     protected static McpttMbmsUsageInfoType getMcpttMbmsUsageInfoType(@NonNull String string){
         return getMcpttMbmsUsageInfoType(string.getBytes());
     }
 
     protected static McpttMbmsUsageInfoType getMcpttMbmsUsageInfoType(byte[] bytes) {
         return getMcpttMbmsUsageInfoType(new ByteArrayInputStream(bytes));
     }
     private static McpttMbmsUsageInfoType getMcpttMbmsUsageInfoType(InputStream stream)  {
         if(stream==null)return null;
         Strategy strategy = new AnnotationStrategy();
         Serializer serializer = new Persister(strategy);
         McpttMbmsUsageInfoType mcpttMbmsUsageInfoType=null;
         try{
             mcpttMbmsUsageInfoType=serializer.read(McpttMbmsUsageInfoType.class,stream);
         }catch (Exception e){
             //System.out.println("Error in: "+e.toString());
             Log.e(TAG,"Error in :"+e.toString());
         }
 
         return mcpttMbmsUsageInfoType;
     }
 
     private static InputStream getOutputStreamOfMcpttMbmsUsageInfoType(@NonNull Context context, McpttMbmsUsageInfoType mcpttMbmsUsageInfoType) throws Exception {
         if(mcpttMbmsUsageInfoType==null)return null;
         Strategy strategy = new AnnotationStrategy();
         Serializer serializer = new Persister(strategy);
         File outputDir = context.getCacheDir(); // context being the Activity pointer
         File outputFile = File.createTempFile(String.valueOf(Calendar.getInstance().getTimeInMillis()), "txt", outputDir);
         serializer.write(mcpttMbmsUsageInfoType,outputFile);
         InputStream inputStream = new FileInputStream(outputFile);
 
         return inputStream;
     }
 
     private static byte[] getBytesOfMcpttMbmsUsageInfoType(@NonNull Context context,McpttMbmsUsageInfoType mcpttMbmsUsageInfoType) throws Exception {
         InputStream inputStream=getOutputStreamOfMcpttMbmsUsageInfoType(context,mcpttMbmsUsageInfoType);
         if(inputStream==null)return null;
         return readBytes(inputStream);
     }
 
     protected static String  getStringOfMcpttMbmsUsageInfoType(@NonNull Context context, McpttMbmsUsageInfoType mcpttMbmsUsageInfoType) throws Exception {
         return new String(getBytesOfMcpttMbmsUsageInfoType(context,mcpttMbmsUsageInfoType)).trim();
     }
 
     private static byte[] readBytes(InputStream inputStream) throws IOException {
 
         ByteArrayOutputStream byteBuffer = new ByteArrayOutputStream();
 
 
         int bufferSize = 1024;
         byte[] buffer = new byte[bufferSize];
 
 
         int len = 0;
         while ((len = inputStream.read(buffer)) != -1) {
             byteBuffer.write(buffer, 0, len);
         }
 
 
         return byteBuffer.toByteArray();
     }
 
     //END utils xml
 
 }