//-----------------------------------------------------------------------------
// Torque Game Engine 
// Copyright (C) GarageGames.com, Inc.
//-----------------------------------------------------------------------------

//////////////////////////////////////////////////////////////////////////
/// \file lang.h
/// \brief Header for language support
//////////////////////////////////////////////////////////////////////////

#include "console/simBase.h"
#include "core/tVector.h"

#ifndef _LANG_H_
#define _LANG_H_

#define LANG_INVALID_ID		0xffffffff		///!< Invalid ID. Used for returning failure

//////////////////////////////////////////////////////////////////////////
/// \brief Class for working with language files
//////////////////////////////////////////////////////////////////////////
class LangFile
{
protected:
	Vector<UTF8 *> mStringTable;
	UTF8 * mLangName;
	UTF8 * mLangFile;

	void freeTable();

public:
	LangFile(const UTF8 *langName = NULL);
	virtual ~LangFile();

	bool load(const UTF8 *filename);
	bool save(const UTF8 *filename);

	bool load(Stream *s);
	bool save(Stream *s);

	const UTF8 * getString(U32 id);
	U32 addString(const UTF8 *str);
	
	// [tom, 4/22/2005] setString() added to help the language compiler a bit
	void setString(U32 id, const UTF8 *str);

	void setLangName(const UTF8 *newName);
	const UTF8 *getLangName(void)			{ return mLangName; }
	const UTF8 *getLangFile(void)			{ return mLangFile; }

	void setLangFile(const UTF8 *langFile);
	bool activateLanguage(void);
	void deactivateLanguage(void);

	bool isLoaded(void)						{ return mStringTable.size() > 0; }
	
	S32 getNumStrings(void)					{ return mStringTable.size(); }
};

//////////////////////////////////////////////////////////////////////////
/// \brief Language file table
//////////////////////////////////////////////////////////////////////////
class LangTable : public SimObject
{
	typedef SimObject Parent;
	
protected:
	Vector<LangFile *> mLangTable;
	S32 mDefaultLang;
	S32 mCurrentLang;

public:
	DECLARE_CONOBJECT(LangTable);

	LangTable();
	virtual ~LangTable();

	S32 addLanguage(LangFile *lang, const UTF8 *name = NULL);
	S32 addLanguage(const UTF8 *filename, const UTF8 *name = NULL);

	void setDefaultLanguage(S32 langid);
	void setCurrentLanguage(S32 langid);
	S32 getCurrentLanguage(void)			{ return mCurrentLang; }
	
	const UTF8 * getLangName(const S32 langid) const 
	{
		if(langid < 0 || langid >= mLangTable.size())
			return NULL;
		return mLangTable[langid]->getLangName();
	}

	const S32 getNumLang(void) const					{ return mLangTable.size(); }

	const UTF8 * getString(const U32 id) const;
	const U32 getStringLength(const U32 id) const;
};

extern UTF8 *sanitiseVarName(const UTF8 *varName, UTF8 *buffer, U32 bufsize);
extern UTF8 *getCurrentModVarName(UTF8 *buffer, U32 bufsize);
extern const LangTable *getCurrentModLangTable();
extern const LangTable *getModLangTable(const UTF8 *mod);

#endif // _LANG_H_