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 * and trademark rights therein.
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 * 1.1 TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE INFORMATION
 *     CONTAINED HEREIN IS PROVIDED "AS IS" AND WITH ALL FAULTS, AND THE
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 * Contributors
 * - Sergey Vasilevskiy
 * - Doug Johnson
 */

/******************************************************************************
 *   Description:        Implementation of the Security input file that scales
 *                       with the database size.
 ******************************************************************************/

#ifndef SECURITY_FILE_H
#define SECURITY_FILE_H

#include <map>
#include <cassert>

#include "utilities/EGenStandardTypes.h"
#include "DataFileTypes.h"
#include "main/ExchangeIDs.h"

namespace TPCE {

class CSecurityFile {
	SecurityDataFile_t const *m_dataFile;

	// Total number of securities in the database.
	// Depends on the total number of customers.
	//
	TIdent m_iConfiguredSecurityCount;
	TIdent m_iActiveSecurityCount;

	// Number of base companies (=rows in Company.txt input file).
	//
	UINT m_iBaseCompanyCount;

	// Used to map a symbol to it's id value. To support logical const-ness
	// these are mutable since they don't change the "real" contents of the
	// Security File.
	mutable bool m_SymbolToIdMapIsLoaded;
	mutable std::map<std::string, TIdent> m_SymbolToIdMap;
	mutable std::map<char, int> m_LowerCaseLetterToIntMap;
	char m_SUFFIX_SEPARATOR;

	void CreateSuffix(TIdent Multiplier, char *pBuf, size_t BufSize) const;
	INT64 ParseSuffix(const char *pSymbol) const;

public:
	// Constructor.
	//
	CSecurityFile(const SecurityDataFile_t &dataFile, TIdent iConfiguredCustomerCount, TIdent iActiveCustomerCount,
	              UINT baseCompanyCount);

	// Calculate total security count for the specified number of customers.
	// Sort of a static method. Used in parallel generation of securities
	// related tables.
	//
	TIdent CalculateSecurityCount(TIdent iCustomerCount) const;

	// Calculate the first security id (0-based) for the specified customer id
	//
	TIdent CalculateStartFromSecurity(TIdent iStartFromCustomer) const;

	// Create security symbol with mod/div magic.
	//
	// This function is needed to scale unique security
	// symbols with the database size.
	//
	void CreateSymbol(TIdent iIndex,    // row number
	                  char *szOutput,   // output buffer
	                  size_t iOutputLen // size of the output buffer (including null)
	                  ) const;

	// Return company id for the specified row of the SECURITY table.
	// Index can exceed the size of the Security flat file.
	//
	TIdent GetCompanyId(TIdent iIndex) const;

	TIdent GetCompanyIndex(TIdent Index) const;

	// Return the number of securities in the database for
	// a certain number of customers.
	//
	TIdent GetSize() const;

	// Return the number of securities in the database for
	// the configured number of customers.
	//
	TIdent GetConfiguredSecurityCount() const;

	// Return the number of securities in the database for
	// the active number of customers.
	//
	TIdent GetActiveSecurityCount() const;

	// Overload GetRecord to wrap around indices that
	// are larger than the flat file
	//
	const SecurityDataFileRecord &GetRecord(TIdent index) const;

	// Load the symbol-to-id map
	// Logical const-ness - the maps and the is-loaded flag may change but the
	// "real" Security File data is unchanged.
	bool LoadSymbolToIdMap(void) const;

	TIdent GetId(char *pSymbol) const;

	TIdent GetIndex(char *pSymbol) const;

	eExchangeID GetExchangeIndex(TIdent index) const;
};

} // namespace TPCE

#endif // SECURITY_FILE_H