#ifndef DATREAD_H
#define DATREAD_H

#include <ostream>
#include <fstream>
#include <memory>
#include <vector>

#include <boost/iostreams/filtering_streambuf.hpp>
#include <boost/iostreams/filter/bzip2.hpp>

using namespace std;

class datread {
 public:
  ~datread ();
  datread (const unsigned int& _blocksize, ostream *_log=NULL);
  int openFile (const string& filename);
  enum Format {DAT, EDAT, SDAT};
  void * getHeader (const string& headerid);
  int readFullBlock (char *tmpData);
  bool fisopen ();
  string getParaString ();
  void closeFile ();
 private:
  const unsigned int blocksize;
  ifstream infile;
  Format format;
  string parastring;
  boost::iostreams::filtering_istreambuf *inbuffer;
  ostream * const log;
  int readDataToMem (char *tmpData, long unsigned int dataSize);
  string filename;
  int readHeader ();
  vector< pair<unsigned long, void *> > headerStore;
  void deleteHeaderStore ();
  bool readAllHeaders ();
  static unsigned long hash(const string& str);
};

#endif