//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $Workfile:     $
// $Date:         $
// $NoKeywords: $
//=============================================================================//

#ifndef SCRIPLIB_H
#define SCRIPLIB_H

#ifdef _WIN32
#pragma once
#endif

enum ScriptPathMode_t { SCRIPT_USE_ABSOLUTE_PATH, SCRIPT_USE_RELATIVE_PATH };

// scriplib.h

#define MAXTOKEN 1024

extern char token[MAXTOKEN];
extern char *scriptbuffer, *script_p, *scriptend_p;
extern int grabbed;
extern int scriptline;
extern qboolean endofscript;

// If pathMode is SCRIPT_USE_ABSOLUTE_PATH, then it uses ExpandPath() on the
// filename before trying to open it. Otherwise, it passes the filename straight
// into the filesystem (so you can leave it as a relative path).
void LoadScriptFile(char *filename,
                    ScriptPathMode_t pathMode = SCRIPT_USE_ABSOLUTE_PATH);
void ParseFromMemory(char *buffer, int size);

qboolean GetToken(qboolean crossline);
qboolean GetExprToken(qboolean crossline);
void UnGetToken(void);
qboolean TokenAvailable(void);
qboolean GetTokenizerStatus(char **pFilename, int *pLine);
bool SetCheckSingleCharTokens(bool bCheck);

// SCRIPT_LOADED_CALLBACK:
//	Is called after the contents of a file is loaded.
//	pFilenameLoaded			is the path of a file that got loaded.
//	pIncludedFromFileName	is the name of the parent file or NULL if loaded
//because of "LoadScriptFile" toplevel call. 	nIncludeLineNumber		is the
//number of the line in the parent file with $include statement or 0 in case of
//"LoadScriptFile"
typedef void (*SCRIPT_LOADED_CALLBACK)(char const *pFilenameLoaded,
                                       char const *pIncludedFromFileName,
                                       int nIncludeLineNumber);

// SetScriptLoadedCallback:
//	Sets the new callback for script loading.
//	Returns the previous callback function.
SCRIPT_LOADED_CALLBACK SetScriptLoadedCallback(
    SCRIPT_LOADED_CALLBACK pfnNewScriptLoadedCallback);

#include "tier1/utlstring.h"
#include "tier1/utlvector.h"

CUtlString SetSingleCharTokenList(const char *pszSingleCharTokenList);

class CUtlBuffer;

enum DiskWriteMode_t {
    WRITE_TO_DISK_NEVER,
    WRITE_TO_DISK_ALWAYS,
    WRITE_TO_DISK_UPDATE,  // file must exist
};

struct fileList_t {
    CUtlString fileName;
    time_t timeWrite;
};

class IScriptLib {
   public:
    virtual bool ReadFileToBuffer(const char *pSourceName, CUtlBuffer &buffer,
                                  bool bText = false,
                                  bool bNoOpenFailureWarning = false) = 0;
    virtual bool WriteBufferToFile(const char *pTargetName, CUtlBuffer &buffer,
                                   DiskWriteMode_t writeMode) = 0;
    virtual int FindFiles(char *pFileMask, bool bRecurse,
                          CUtlVector<fileList_t> &fileList) = 0;
    virtual char *MakeTemporaryFilename(char const *pchModPath, char *pPath,
                                        int pathSize) = 0;
    virtual void DeleteTemporaryFiles(const char *pFileMask) = 0;
    virtual int CompareFileTime(const char *pFilenameA,
                                const char *pFilenameB) = 0;
    virtual bool DoesFileExist(const char *pFilename) = 0;
};

extern IScriptLib *scriptlib;

#endif  // SCRIPLIB_H