// GzipReader.hpp


#if !defined(GZIP_READER_HPP)
#define GZIP_READER_HPP


#include <stdexcept>
#include <zlib.h>
#include "Reader.hpp"


namespace NGBW {


class GzipReader : public Reader {
public:

	GzipReader(const char *file_name) throw(std::bad_alloc, std::runtime_error);

	~GzipReader() throw()
	{
		delete[] m_inflated;

		::gzclose(m_gzip_file);
	}


	bool Eof()
	{
		return m_eof;
	}

	char GetChar();
	const char *GetLine();


private:

	enum { READ_SIZE = 8192 };

	void InflateData(size_t line_begin) throw(std::bad_alloc, std::runtime_error);

	bool m_eof;
	char *m_inflated;
	size_t m_max_length;
	size_t m_inflated_length;
	size_t m_line_end;
	gzFile m_gzip_file;
};


} // namespace NGBW


#endif // GZIP_READER_HPP