/**

 * vim: set ts=4 :

 * =============================================================================

 * SourceMod

 * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.

 * =============================================================================

 *

 * This program is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, version 3.0, as published by the

 * Free Software Foundation.

 * 

 * This program 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

 * this program.  If not, see <http://www.gnu.org/licenses/>.

 *

 * As a special exception, AlliedModders LLC gives you permission to link the

 * code of this program (as well as its derivative works) to "Half-Life 2," the

 * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software

 * by the Valve Corporation.  You must obey the GNU General Public License in

 * all respects for all other code used.  Additionally, AlliedModders LLC grants

 * this exception to all derivative works.  AlliedModders LLC defines further

 * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),

 * or <http://www.sourcemod.net/license.php>.

 *

 * Version: $Id$

 */

#ifndef _INCLUDE_SOURCEMOD_TRANSLATOR_H_

#define _INCLUDE_SOURCEMOD_TRANSLATOR_H_

#include "sm_trie.h"

#include <sh_string.h>

#include <sh_vector.h>

#include "sm_globals.h"

#include "sm_memtable.h"

#include "ITextParsers.h"

#define MAX_TRANSLATE_PARAMS		32

#define CORELANG_ENGLISH			0

/* :TODO: write a templatized version of tries? */

using namespace SourceHook;

class Translator;

enum PhraseParseState

{

	PPS_None = 0,

	PPS_Phrases,

	PPS_InPhrase,

};

struct Language

{

	char m_code2[3];

	int m_FullName;

};

struct Translation

{

	const char *szPhrase;		/**< Translated phrase. */

	unsigned int fmt_count;		/**< Number of format parameters. */

	int *fmt_order;				/**< Format phrase order. */

};

#define LANGUAGE_ENGLISH			0

enum TransError

{

	Trans_Okay = 0,

	Trans_BadLanguage = 1,

	Trans_BadPhrase = 2,

	Trans_BadPhraseLanguage = 3,

	Trans_BadPhraseFile = 4,

};

class CPhraseFile : public ITextListener_SMC

{

public:

	CPhraseFile(Translator *pTranslator, const char *file);

	~CPhraseFile();

public:

	void ReparseFile();

	const char *GetFilename();

	TransError GetTranslation(const char *szPhrase, unsigned int lang_id, Translation *pTrans);

public: //ITextListener_SMC

	void ReadSMC_ParseStart();

	SMCResult ReadSMC_NewSection(const SMCStates *states, const char *name);

	SMCResult ReadSMC_KeyValue(const SMCStates *states, const char *key, const char *value);

	SMCResult ReadSMC_LeavingSection(const SMCStates *states);

	void ReadSMC_ParseEnd(bool halted, bool failed);

private:

	void ParseError(const char *message, ...);

	void ParseWarning(const char *message, ...);

private:

	Trie *m_pPhraseLookup;

	String m_File;

	Translator *m_pTranslator;

	PhraseParseState m_ParseState;

	int m_CurPhrase;

	BaseMemTable *m_pMemory;

	BaseStringTable *m_pStringTab;

	unsigned int m_LangCount;

	String m_ParseError;

	String m_LastPhraseString;

	bool m_FileLogged;

};

class Translator : 

	public ITextListener_SMC,

	public SMGlobalClass

{

public:

	Translator();

	~Translator();

public: // SMGlobalClass

	ConfigResult OnSourceModConfigChanged(const char *key, 

		const char *value, 

		ConfigSource source, 

		char *error, 

		size_t maxlength);

	void OnSourceModAllInitialized();

	void OnSourceModLevelChange(const char *mapName);

public: // ITextListener_SMC

	void ReadSMC_ParseStart();

	SMCResult ReadSMC_NewSection(const SMCStates *states, const char *name);

	SMCResult ReadSMC_KeyValue(const SMCStates *states, const char *key, const char *value);

	SMCResult ReadSMC_LeavingSection(const SMCStates *states);

public:

	void RebuildLanguageDatabase(const char *lang_header_file);

	unsigned int FindOrAddPhraseFile(const char *phrase_file);

	BaseStringTable *GetStringTable();

	unsigned int GetLanguageCount();

	bool GetLanguageInfo(unsigned int number, const char **code, const char **name);

	bool GetLanguageByCode(const char *code, unsigned int *index);

	bool GetLanguageByName(const char *name, unsigned int *index);

	size_t Translate(char *buffer, size_t maxlength, void **params, const Translation *pTrans);

	CPhraseFile *GetFileByIndex(unsigned int index);

	TransError CoreTransEx(CPhraseFile *pFile,

		int client, 

		char *buffer, 

		size_t maxlength, 

		const char *phrase, 

		void **params, 

		size_t *outlen=NULL);

	TransError CoreTrans(int client, 

						 char *buffer, 

						 size_t maxlength, 

						 const char *phrase, 

						 void **params, 

						 size_t *outlen=NULL);

	unsigned int GetServerLanguage();

	unsigned int GetClientLanguage(int client);

private:

	bool AddLanguage(const char *langcode, const char *description);

private:

	CVector<Language *> m_Languages;

	CVector<CPhraseFile *> m_Files;

	BaseStringTable *m_pStringTab;

	Trie *m_pLCodeLookup;

	bool m_InLanguageSection;

	String m_CustomError;

	unsigned int m_ServerLang;

	char m_InitialLang[3];

};

extern CPhraseFile *g_pCorePhrases;

extern unsigned int g_pCorePhraseID;

extern Translator g_Translator;

#endif //_INCLUDE_SOURCEMOD_TRANSLATOR_H_