#pragma once

#include <zlib.h>
#include <Handle.h>

namespace Balau {

class ZStream : public Handle {
  public:
    typedef enum {
        ZLIB,
        GZIP,
        RAW,
    } header_t;
      ZStream(const IO<Handle> & h, int level = Z_BEST_COMPRESSION, header_t header = ZLIB);
    virtual void close() throw (GeneralException);
    virtual bool isClosed();
    virtual bool isEOF();
    virtual bool canRead();
    virtual bool canWrite();
    virtual const char * getName();
    virtual ssize_t read(void * buf, size_t count) throw (GeneralException);
    virtual ssize_t write(const void * buf, size_t count) throw (GeneralException);
    void detach() { m_detached = true; }
    void flush() { doFlush(false); }
  private:
    void finish() { doFlush(true); }
    void doFlush(bool finish);
    IO<Handle> m_h;
    z_stream m_zin, m_zout;
    bool m_detached = false, m_closed = false, m_eof = false;
    String m_name;
    uint8_t * m_in = NULL;
};

};