/*
===========================================================================
Copyright (C) 2023 the OpenMoHAA team

This file is part of OpenMoHAA source code.

OpenMoHAA source code 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 2 of the License,
or (at your option) any later version.

OpenMoHAA source code 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 OpenMoHAA source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/

// tiki_script.h : TIKI script

#pragma once

#define TOKENCOMMENT  (';')
#define TOKENCOMMENT2 ('#')
#define TOKENEOL      ('\n')
//#define TOKENNULL			('\0')
#define TOKENSPACE     (' ')
#define TOKENSPECIAL   ('$')

#define TIKI_MAXTOKEN  256

#define TIKI_MAXMACROS 48

typedef struct {
    char name[TIKI_MAXTOKEN];
    char macro[TIKI_MAXTOKEN];
} tiki_macro_t;

typedef struct {
    const char *mark_script_p;
    qboolean    mark_tokenready;
    char        mark_token[TIKI_MAXTOKEN];
} tiki_mark_t;

#ifdef __cplusplus

class TikiScript
{
protected:
    qboolean          error;
    qboolean          tokenready;
    class TikiScript *include;
    class TikiScript *parent;
    char              filename[TIKI_MAXTOKEN];
    const char       *script_p;
    const char       *end_p;
    tiki_macro_t      macros[TIKI_MAXMACROS];
    int               nummacros;
    int               line;
    char              token[TIKI_MAXTOKEN];
    qboolean          releaseBuffer;
    tiki_mark_t       mark[64];
    int               mark_pos;

public:
    char                    *buffer;
    int                      length;
    char                     path[MAX_QPATH];
    static class TikiScript *currentScript;

protected:
    qboolean    AtComment();
    qboolean    AtExtendedComment();
    qboolean    AtCommand();
    qboolean    AtString(qboolean crossline);
    qboolean    ProcessCommand(qboolean crossline);
    qboolean    Completed();
    qboolean    SafeCheckOverflow();
    void        CheckOverflow();
    void        Uninclude();
    const char *FindMacro(const char *macro);
    void        AddMacro(const char *macro, const char *expansion);
    qboolean    SkipToEOL();
    void        SkipWhiteSpace(qboolean crossline);
    void        SkipNonToken(qboolean crossline);
    qboolean    CommentAvailable(qboolean crossline);
    void        SkipExtendedComment();

public:
    TikiScript();
    ~TikiScript();

    void        Close();
    const char *Filename();
    int         GetLineNumber();
    void        Reset();
    qboolean    TokenAvailable(qboolean crossline);
    void        UnGetToken();
    const char *GetToken(qboolean crossline);
    const char *GetLine(qboolean crossline);
    const char *GetAndIgnoreLine(qboolean crossline);
    const char *GetRaw();
    const char *GetString(qboolean crossline);
    qboolean    GetSpecific(const char *string);
    int         GetInteger(qboolean crossline);
    double      GetDouble(qboolean crossline);
    float       GetFloat(qboolean crossline);
    void        GetVector(qboolean crossline, float *vec);
    int         LinesInFile();
    void        Parse(char *data, int length, const char *name);
    qboolean    LoadFile(const char *name, qboolean quiet);
    const char *Token();
    void        MarkPos();
    void        ReturnToMark();
    void        ReplaceLineWithWhitespace(bool deleteFromStartOfLine);
    void        Exclude();
    const char *GetParentToken();
};

class TikiSwitchKey
{
public:
    str            sKeyName;
    str            sKeyValue;
    TikiSwitchKey *pNextKey;

    TikiSwitchKey();
};

class TikiSwitcher
{
    TikiSwitchKey *m_pSwitchKeys;

private:
    TikiSwitchKey *GetSwitchKey(const char *);
    void           RemoveUnwantedSwitchOptions(TikiScript *);

public:
    TikiSwitcher();

    void AddSwitchKey(const char *, const char *);
    void ChangeSwitchKey(const char *, const char *);
    void AddOrChangeSwitchKey(const char *, const char *);
    str& GetSwitchKeyValue(const char *);
    void PrecompileTikiScript(TikiScript *);
};

#endif