#ifndef DECODINGBITSTREAM_H
#define DECODINGBITSTREAM_H

#include "SD.h"

class DecodingBitStream 
{
  public:
    DecodingBitStream(File* _stream, uint8_t _bytesAvailable, uint16_t _numberOfBitsInCode) : 
      stream(_stream), bytesAvailable(_bytesAvailable), numberOfBitsInCode(_numberOfBitsInCode),
      bitBuffer(0), bitsAvailable(0) {}
    ~DecodingBitStream() {}

    void setNumberOfBitsInCode(uint16_t _numberOfBitsInCode) { numberOfBitsInCode = _numberOfBitsInCode; }
    void setBytesAvailable(uint8_t _bytesAvailable) { bytesAvailable = _bytesAvailable; }

    uint16_t getCode();
    uint16_t getNumberOfBitsInCode() { return numberOfBitsInCode; }

    bool dataRemainingInBlock() { return bytesAvailable > 0 || bitsAvailable > 0; }
    
    static uint16_t getNumberOfBitsToRepresentValue(uint16_t value);

  private:
    void
      verifyEnoughBits(void);
    uint16_t
      bitBuffer;
    uint8_t
      bytesAvailable,
      bitsAvailable,
      numberOfBitsInCode;
    File*
      stream;
};

#endif