#ifndef DRW_TEXTCODEC_H
#define DRW_TEXTCODEC_H

#include <string>

class DRW_Converter;

class DRW_TextCodec
{
public:
    DRW_TextCodec();
    ~DRW_TextCodec();
    std::string fromUtf8( std::string s );
    std::string toUtf8( std::string s );

    int getVersion() { return version; }
    void setVersion( std::string* v );

    void setVersion( int v ) { version = v; }
    void setCodePage( std::string* c );

    void setCodePage( std::string c ) { setCodePage( &c ); }
    std::string getCodePage() { return cp; }

private:
    std::string correctCodePage( const std::string& s );

private:
    int version;
    std::string cp;
    DRW_Converter* conv;
};

class DRW_Converter
{
public:
    DRW_Converter( const int* t, int l )
    {
        table = t;
        cpLenght = l;
    }

    virtual ~DRW_Converter() {}
    virtual std::string fromUtf8( std::string* s ) { return *s; }
    virtual std::string toUtf8( std::string* s );
    std::string         encodeText( const std::string& stmp );
    std::string         decodeText( int c );
    std::string         encodeNum( int c );
    int                 decodeNum( std::string s, int* b );

    const int* table;
    int cpLenght;
};

class DRW_ConvTable : public DRW_Converter
{
public:
    DRW_ConvTable( const int* t, int l ) : DRW_Converter( t, l ) {}
    virtual std::string fromUtf8( std::string* s ) override;
    virtual std::string toUtf8( std::string* s ) override;
};

class DRW_ConvDBCSTable : public DRW_Converter
{
public:
    DRW_ConvDBCSTable( const int* t, const int* lt, const int dt[][2], int l ) : DRW_Converter( t,
                l )
    {
        leadTable = lt;
        doubleTable = dt;
    }

    virtual std::string fromUtf8( std::string* s ) override;
    virtual std::string toUtf8( std::string* s ) override;

private:
    const int* leadTable;
    const int (*doubleTable)[2];
};

class DRW_Conv932Table : public DRW_Converter
{
public:
    DRW_Conv932Table( const int* t, const int* lt, const int dt[][2], int l ) : DRW_Converter( t,
                l )
    {
        leadTable = lt;
        doubleTable = dt;
    }

    virtual std::string fromUtf8( std::string* s ) override;
    virtual std::string toUtf8( std::string* s ) override;

private:
    const int* leadTable;
    const int (*doubleTable)[2];
};

#endif    // DRW_TEXTCODEC_H