/*
 Copyright 2009 Sun Microsystems, Inc.  All rights reserved.

 The MySQL Connector/C++ is licensed under the terms of the GPL
 <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most
 MySQL Connectors. There are special exceptions to the terms and
 conditions of the GPL as it is applied to this software, see the
 FLOSS License Exception
 <http://www.mysql.com/about/legal/licensing/foss-exception.html>.
 */

#ifndef _SQL_STRING_H_
#define _SQL_STRING_H_

#include <string>
#include <cppconn/build_config.h>

#include <iostream>

namespace sql
{
class CPPCONN_PUBLIC_FUNC SQLString
{
    std::string realStr;

public:
#ifdef _WIN32
    //TODO something less dirty-hackish.
    static const size_t npos = static_cast<std::string::size_type>(-1);
#else
    static const size_t npos = std::string::npos;
#endif

    ~SQLString()
    {}

    SQLString()
    {}

    SQLString(const SQLString & other) : realStr(other.realStr)
    {}

    SQLString(const std::string & other) : realStr(other)
    {}

    SQLString(const char other[]) : realStr(other)
    {}

    SQLString(const char * s, size_t n) : realStr(s, n)
    {}

    // Needed for stuff like SQLString str= "char * string constant"
    const SQLString & operator=(const char * s)
    {
        realStr = s;
        return *this;
    }

    const SQLString & operator=(const std::string & rhs)
    {
        realStr = rhs;
        return *this;
    }

    const SQLString & operator=(const SQLString & rhs)
    {
        realStr = rhs.realStr;
        return *this;
    }

    // Conversion to st::string. Comes in play for stuff like std::string str= SQLString_var;
    operator std::string const&() const
    {
        return realStr;
    }

    /** For access std::string methods. Not sure we need it. Makes it look like some smart ptr.
     possibly operator* - will look even more like smart ptr */
    std::string * operator ->()
    {
        return & realStr;
    }

    int compare(const SQLString& str) const
    {
        return realStr.compare(str.realStr);
    }

    int compare(const char * s) const
    {
        return realStr.compare(s);
    }

    int compare(size_t pos1, size_t n1, const char * s) const
    {
        return realStr.compare(pos1, n1, s);
    }

    const std::string & asStdString() const
    {
        return realStr;
    }

    const char * c_str() const
    {
        return realStr.c_str();
    }

    size_t length() const
    {
        return realStr.length();
    }

    SQLString & append(const std::string & str)
    {
        realStr.append(str);
        return *this;
    }

    SQLString & append(const char * s)
    {
        realStr.append(s);
        return *this;
    }

    const char& operator[](size_t pos) const
    {
        return realStr[pos];
    }

    size_t find(char c, size_t pos = 0) const
    {
        return realStr.find(c, pos);
    }

    size_t find(const SQLString & s, size_t pos = 0) const
    {
        return realStr.find(s.realStr, pos);
    }

    SQLString substr(size_t pos = 0, size_t n = npos) const
    {
        return realStr.substr(pos, n);
    }

    const SQLString& replace(size_t pos1, size_t n1, const SQLString & s)
    {
        realStr.replace(pos1, n1, s.realStr);
        return *this;
    }

    size_t find_first_of(char c, size_t pos = 0) const
    {
        return realStr.find_first_of(c, pos);
    }

    size_t find_last_of(char c, size_t pos = npos) const
    {
        return realStr.find_last_of(c, pos);
    }

    const SQLString & operator+=(const SQLString & op2)
    {
        realStr += op2.realStr;
        return *this;
    }
};

/*
 Operators that can and have to be not a member.
 */
inline const SQLString operator+( const SQLString & op1, const SQLString & op2)
{
    return sql::SQLString( op1.asStdString() + op2.asStdString());
}

inline bool operator ==( const SQLString & op1, const SQLString & op2)
{
    return (op1.asStdString() == op2.asStdString());
}

inline bool operator !=( const SQLString & op1, const SQLString & op2)
{
    return (op1.asStdString() != op2.asStdString());
}

inline bool operator <( const SQLString & op1, const SQLString & op2)
{
    return op1.asStdString() < op2.asStdString();
}

} // namespace sql

namespace std
{
// operator << for SQLString output
inline ostream & operator <<( ostream & os, const sql::SQLString & str)
{
    return os << str.asStdString();
}
}
#endif
