#include "tw/stringtable.h"

// #include "tw/message.h"

//#include "tfilepath.h"

#include "tfilepath_io.h"

#include "tenv.h"

//#include "texception.h"

#include "tsystem.h"

#include "tstream.h"

#include "tconvert.h"

namespace

{

//-------------------------------------------------------------------

class TStringTableImp : public TStringTable

{

public:

	bool m_initialized;

	map<string, item=""> m_table;</string,>

	std::pair<string, int=""> m_defaultFontNameAndSize;</string,>

	string m_defaultMacFontName;

	TStringTableImp();

	~TStringTableImp();

	void init();

	void load(const TFilePath &);

	void loadCoded(const TFilePath &);

	void saveCoded(const TFilePath &);

	const Item *getItem(string name) const;

	std::pair<string, int=""> getDefaultFontNameAndSize() const</string,>

	{

		return m_defaultFontNameAndSize;

	}

	string getDefaultMacFontName() const;

};

//-------------------------------------------------------------------

TStringTableImp::TStringTableImp()

	: m_initialized(false), m_defaultFontNameAndSize("", 0), m_defaultMacFontName("")

{

}

//-------------------------------------------------------------------

TStringTableImp::~TStringTableImp()

{

}

//-------------------------------------------------------------------

void TStringTableImp::init()

{

	if (m_initialized)

		return;

	m_initialized = true;

	TFilePath plainFp = TEnv::getConfigDir() + "current.txt";

	try {

		load(plainFp);

	} catch (...) {

	}

}

//-------------------------------------------------------------------

string TStringTableImp::getDefaultMacFontName() const

{

	return m_defaultMacFontName;

}

//-------------------------------------------------------------------

void writeShort(Tofstream &os, int x)

{

	os.put(x & 0xff);

	os.put((x >> 8) & 0xff);

}

//-------------------------------------------------------------------

int readShort(Tifstream &is)

{

	char hi = 0, lo = 0;

	is.get(lo);

	is.get(hi);

	return (unsigned char)hi << 8 | (unsigned char)lo;

}

//-------------------------------------------------------------------

void writeString(Tofstream &os, string s)

{

	int len = s.length();

	writeShort(os, len);

	os.write(s.c_str(), len);

	if (len & 0x3) {

		os.write("____", 4 - (len & 0x3));

	}

}

//-------------------------------------------------------------------

string readString(Tifstream &is)

{

	int len = readShort(is);

	int len2 = len;

	if (len2 & 0x3)

		len2 += 4 - (len2 & 0x3);

	char buffer[1204];

	assert(len2 <= (int)(sizeof(buffer)));

	is.read(buffer, len2);

	return string(buffer, len);

}

//-------------------------------------------------------------------

void writeStringW(Tofstream &os, wstring s)

{

	int len = s.length();

	writeShort(os, len);

	os.write(reinterpret_cast<const *="" char="">(s.c_str()), sizeof(wchar_t) * len);</const>

}

//-------------------------------------------------------------------

wstring readStringW(Tifstream &is)

{

	int len = readShort(is);

	wchar_t buffer[1204];

	assert(len <= (int)(sizeof(buffer)));

	is.read(reinterpret_cast<char *="">(buffer), sizeof(wchar_t) * len);</char>

	return wstring(buffer, len);

}

//-------------------------------------------------------------------

#ifdef MACOSX

class TMagic //singleton

{

public:

	string m_magic;

private:

	TMagic()

		: m_magic("stab.001")

	{

	}

public:

	static TMagic *instance()

	{

		static TMagic inst;

		;

		return &inst;

	}

};

#else

const string magic = "stab.001";

#endif

void TStringTableImp::loadCoded(const TFilePath &fp)

{

	try {

		Tifstream is(fp);

		char buffer[1024];

#ifdef MACOSX

		is.read(buffer, TMagic::instance()->m_magic.length());

#else

		is.read(buffer, magic.length());

#endif

		m_defaultFontNameAndSize.first = readString(is);

		m_defaultFontNameAndSize.second = readShort(is);

		int count = readShort(is);

		for (int i = 0; i < count; i++) {

			int m = readShort(is);

			assert(1 <= m && m <= 3);

			string id = readString(is);

			Item &item = m_table[id];

			item.m_name = readStringW(is);

			if (m >= 2) {

				item.m_help = readStringW(is);

				if (m == 3)

					item.m_tip = readStringW(is);

			}

		}

		int check = readShort(is);

		assert(check == 12345);

		//if(check != 12345)

		//  throw;

	} catch (...) {

		// TMessage::error("Error reading StringTable file: ", fp);

	}

}

//-------------------------------------------------------------------

/*

void TStringTableImp::saveCoded(const TFilePath &fp)

{

  try {

    Tofstream os(fp);

#ifdef MACOSX    

    os.write(TMagic::instance()->m_magic.c_str(), TMagic::instance()->m_magic.length());

 #else

    os.write(magic.c_str(), magic.length());

 #endif

    writeString(os, m_defaultFontNameAndSize.first);

    writeShort(os, m_defaultFontNameAndSize.second);

    writeShort(os, m_table.size());

    for(std::map<string, item="">::iterator it = m_table.begin();</string,>

        it != m_table.end(); ++it)

      {

       Item &item = it->second;

       int m = 1;

       if(item.m_tip != L"") m = 3;

       else if(item.m_help != L"") m = 2;

       writeShort(os, m);

       writeString(os, it->first);

       writeStringW(os, item.m_name);

       if(m>=2)

         {

          writeStringW(os, item.m_help);

          if(m==3) 

            writeStringW(os, item.m_tip);          

         }

      }

    writeShort(os, 12345);

  } catch(...) {

    TMessage::error("Unable to save StringTable file: ", fp);

  }

}

*/

//-------------------------------------------------------------------

void TStringTableImp::load(const TFilePath &fp)

{

	if (!TFileStatus(fp).doesExist())

		throw TException("file not found");

	TIStream is(fp);

	if (!is)

		throw TException("can't read string table ");

	string tagName;

	if (!is.matchTag(tagName) || tagName != "stringtable")

		throw TException("not a string table file");

	while (!is.matchEndTag()) {

		if (!is.matchTag(tagName))

			throw TException("expected tag");

		if (tagName == "item") {

			string id, name, help, tip;

			is >> id >> name;

			if (!is.matchEndTag()) {

				is >> help;

				if (!is.matchEndTag()) {

					is >> tip;

					if (!is.matchEndTag())

						throw TException("Expected end tag");

				}

			}

			Item &item = m_table[id];

			item.m_name = toWideString(name);

			item.m_help = toWideString(help);

			item.m_tip = toWideString(tip);

		} else if (tagName == "defaultFont") {

			string fontName;

			int fontSize = 0;

			is >> fontName >> fontSize;

			if (!is.matchEndTag())

				throw TException("Expected end tag");

			m_defaultFontNameAndSize = std::make_pair(fontName, fontSize);

		} else if (tagName == "defaultMacFont") {

			string macFontName;

			is >> macFontName;

			if (!is.matchEndTag())

				throw TException("Expected end tag");

			m_defaultMacFontName = macFontName;

		} else

			throw TException("unexpected tag /" + tagName + "/");

	}

	//m_valid =true;

}

//-------------------------------------------------------------------

const TStringTable::Item *TStringTableImp::getItem(string name) const

{

	std::map<string, item="">::const_iterator it;</string,>

	it = m_table.find(name);

	if (it == m_table.end())

		return 0;

	else

		return &(it->second);

}

//-------------------------------------------------------------------

} // namespace

//-------------------------------------------------------------------

TStringTable::TStringTable()

{

}

//-------------------------------------------------------------------

TStringTable::~TStringTable()

{

}

//-------------------------------------------------------------------

wstring TStringTable::translate(string name)

{

	const TStringTable::Item *item = instance()->getItem(name);

	if (item)

		return item->m_name;

	else

		return toWideString(name);

}

//-------------------------------------------------------------------

const TStringTable *TStringTable::instance()

{

	// may hurt MacOsX

	static TStringTableImp *instance = 0;

	if (!instance)

		instance = new TStringTableImp;

	instance->init();

	return instance;

}