#ifndef __CandleDataProvider_h_
#define __CandleDataProvider_h_

#include "GridReaderBase.h"
#include "CandleDataNode.h"

class CandleDataProvider : public GridDataProvider
{
private:
  CandleDataNode *const _candleDataNode;
  const std::string _symbol;

  void getTimes(GridDataProviderContext *context,
                int offset,
                time_t &start, time_t &end) const;

  SingleCandle getCandle(GridDataProviderContext *context, int offset) const;

public:
  CandleDataProvider(std::string const &symbol, bool intraday);
  virtual time_t restartAt(EpochCounter::Epoch epoch) const;
  virtual double getValue(std::string const &dataType,
                          GridDataProviderContext *context,
                          int offset,
                          std::string &errorMsg) const;
  virtual bool getValid(GridDataProviderContext *context) const;
  virtual void preloadToEnd(GridDataProviderContext *context) const;
  virtual void releasePreload() const;
  virtual std::string debugDump() const;
  virtual std::string getSymbol() const;
  ~CandleDataProvider();
};

#endif