/* This software is the propery of 'SaraCraft' - developed by Allanis.
 * Only members directly assosiated with the SaraCraft project may view/change
 * this code.
 *
 * This class streams music from disk so that
 * all the music doesn't need to be in memory.
 */

#ifndef _SOUNDSTREAM_H_
#define _SOUNDSTREAM_H_

#include <string>
#include <iostream>

using namespace std;

#include <AL/al.h>
#include <ogg/ogg.h>
#include <vorbis/codec.h>
#include <vorbis/vorbisenc.h>
#include <vorbis/vorbisfile.h>

#define BUFFER_SIZE (4096 * 8)

class SoundStream {
public:
  void open(string path); // Obtain a handle to the file
  void release();         // Release the file handle
  void display();   	  // display some info on the Ogg
  bool playback();	  // Play the Ogg stream
  bool playing();	  // Check if the source is playing
  bool update(); 	  // Update the stream if needed

  void reload();	  // Starts the file from beginning

protected:
  bool stream(ALuint buffer);   // Reload a buffer
  void empty();		        // Empties the queue
  void check();		        // checks OpenAL error state
  string errorString(int code); // stringify an error code
  
private:
  FILE* oggFile; // file handle
  OggVorbis_File oggStream;  	 // stream handle
  vorbis_info* vorbisInfo;   	 // some formatting data
  vorbis_comment* vorbisComment; // user comments

  ALuint buffers[2]; // Front and back buffers
  ALuint source;     // audio source
  ALuint format;     // Internal format

  string file;	     // Used to store where the file is
};

#endif