#ifndef __SymbolList_h_
#define __SymbolList_h_

#include <map>

#include "StockInfo.h"

class SymbolList 
{
private:
  std::map< std::string, StockInfo > _symbols;

  time_t _oldestPossible;
  int _hashCount;  // Split the symbols into this many distinct partitions.
  int _hashFirst;  // The first partition to use.  Should be at least 0 and less than _hashCount.
  int _hashLast;  // The last partition to use.  Should be at least _hashFirst and less than _hashCount.

public:
  SymbolList();

  // Add a new record.  Or merge into the existing record.
  void add(StockInfo const &toAdd);

  // This is used for a backup data source.  For example, we prefer the info
  // from the data feed.  We also check the database, to make sure we didn't
  // miss anything.  If it's in both places, we prefer the info from the data
  // feed.  If it's missing from the data feed, we use the value from the
  // database, and report a message to the log.
  void addIfNew(StockInfo const &toAdd, std::string const &source);

  // Add a whole list.
  void add(StockInfoList const &toAdd);
  void addIfNew(StockInfoList const &toAdd, std::string const &source);

  // How many partitions.
  void setHashCount(int value);

  // Which partition or partitions to use.
  void setHashPartition(int value);
  void setHashPartitions(int first, int last);

  // This is the default.
  void disableHashing();

  typedef std::vector< std::string > Result;
  Result getValues() const;
  Result getValues(int maxCount) const;
};

#endif