////////////////////////////////////////////////////////////////////////
// OpenTibia - an opensource roleplaying game
////////////////////////////////////////////////////////////////////////
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
////////////////////////////////////////////////////////////////////////

//
// C++ Interface: databaseodbc
//
// Description: Frontend for ODBC connections
//
//
// Author: Bruno R Ferreira <brf_coldf@yahoo.com.br>, (C) 2007
//
//
#ifndef __DATABASE_ODBC__
#define __DATABASE_ODBC__

#ifndef __DATABASE__
#error "database.h should be included first."
#endif

#ifdef WIN32
#include <windows.h>
#else
#include <sqltypes.h>
#endif
#include <sql.h>
#include <sqlext.h>

/**
	@author Bruno R Ferreira <brf_coldf@yahoo.com.br>
*/
class DatabaseODBC : public _Database
{
	public:
		DatabaseODBC();
		DATABASE_VIRTUAL ~DatabaseODBC();

		DATABASE_VIRTUAL bool getParam(DBParam_t param);

		DATABASE_VIRTUAL bool beginTransaction();
		DATABASE_VIRTUAL bool rollback();
		DATABASE_VIRTUAL bool commit();

		DATABASE_VIRTUAL bool executeQuery(const std::string& query);
		DATABASE_VIRTUAL DBResult* storeQuery(const std::string& query);

		DATABASE_VIRTUAL std::string escapeString(const std::string& s) {return escapeBlob(s.c_str(), s.length());}
		DATABASE_VIRTUAL std::string escapeBlob(const char *s, uint32_t length);

		DATABASE_VIRTUAL DatabaseEngine_t getDatabaseEngine() {return DATABASE_ENGINE_ODBC;}

	protected:
		std::string _parse(const std::string& s);

		SQLHDBC m_handle;
		SQLHENV m_env;
};

class ODBCResult : public _DBResult
{
	friend class DatabaseODBC;

	public:
		DATABASE_VIRTUAL int32_t getDataInt(const std::string& s);
		DATABASE_VIRTUAL int64_t getDataLong(const std::string& s);
		DATABASE_VIRTUAL std::string getDataString(const std::string& s);
		DATABASE_VIRTUAL const char* getDataStream(const std::string& s, uint64_t& size);

		DATABASE_VIRTUAL void free();
		DATABASE_VIRTUAL bool next();

	protected:
		ODBCResult(SQLHSTMT stmt);
		DATABASE_VIRTUAL ~ODBCResult() {}

		typedef std::map<const std::string, uint32_t> listNames_t;
		listNames_t m_listNames;

		SQLHSTMT m_handle;
};
#endif