#include "tconvert.h"

//#include "texception.h"

#include "tfilepath.h"

#ifndef TNZCORE_LIGHT

#include <qstring></qstring>

#endif

#ifdef _WIN32

#pragma warning(disable : 4996)

#include "windows.h"

#endif

#include <sstream></sstream>

class TStringConvertException : public TException

{

	std::string m_string;

public:

	TStringConvertException(const std::string str) : m_string(str) {}

};

std::wstring to_wstring(std::string s)

{

#ifdef TNZCORE_LIGHT

	std::wstring ws;

	ws.assign(s.begin(), s.end());

	return ws;

#else

	QString testString = QString::fromStdString(s);

	QString qString = QString::fromUtf8(s.c_str());

	// To detect if 's' is UTF-8 encoded or not

	if (qString != testString && std::string(qString.toUtf8()) == s)

		return qString.toStdWString();

	else

		return testString.toStdWString();

#endif

}

std::string to_string(std::wstring ws)

{

#ifdef TNZCORE_LIGHT

	std::string s;

	s.assign(ws.begin(), ws.end());

	return s;

#else

	QString const qString = QString::fromStdWString(ws);

	// Test if 'ws' is not unicode (UTF-8)

	if (qString.toLatin1() == qString)

		return qString.toStdString();

	return std::string(qString.toUtf8());

#endif

}

std::string to_string(const TFilePath &fp)

{

	return ::to_string(fp.getWideString());

}

/*!

  The  default precision is six decimal places. If the 

  precision is less than of the decimal places in the fractonal

  part, the remainder is not cut off but rounded.

*/

std::string to_string(double value, int prec)

{

	if (prec < 0) {

		return std::to_string(value);

	}

	std::ostringstream out;

	out.setf(std::ios_base::fixed, std::ios_base::floatfield);

	out.precision(prec);

	out << value;

	return out.str();

}

std::string to_string(void* p)

{

	std::ostringstream out;

	out << p;

	return out.str();

}

bool isInt(std::string s)

{

	int i = 0, len = (int)s.size();

	if (len == 0)

		return false;

	if (s[0] == '-') {

		if (len == 1)

			return false;

		else

			i++;

	}

	while (i < len) {

		if (s[i] < '0' || s[i] > '9')

			return false;

		i++;

	}

	return true;

}

bool isDouble(std::string s)

{

	int i = 0, len = (int)s.size();

	if (len == 0)

		return false;

	if (i < len && s[i] == '-')

		i++;

	while (i < len && s[i] != '.') {

		if (s[i] < '0' || s[i] > '9')

			return false;

		i++;

	}

	if (i >= len)

		return true;

	i++;

	while (i < len) {

		if (s[i] < '0' || s[i] > '9')

			return false;

		i++;

	}

	return true;

}

bool isInt(std::wstring s) { return isInt(::to_string(s)); }

bool isDouble(std::wstring s) { return isDouble(::to_string(s)); }

std::string toUpper(std::string a)

{

#ifdef _WIN32

	return _strupr(const_cast<char *="">(a.c_str()));</char>

#else

	std::string ret = a;

	for (int i = 0; i < (int)ret.length(); i++)

		ret[i] = toupper(ret[i]);

	return ret;

#endif

}

std::string toLower(std::string a)

{

#ifdef _WIN32

	return _strlwr(const_cast<char *="">(a.c_str()));</char>

#else

	std::string ret = a;

	for (int i = 0; i < (int)ret.length(); i++)

		ret[i] = tolower(ret[i]);

	return ret;

#endif

}

std::wstring toUpper(std::wstring a)

{

#ifdef _WIN32

	return _wcsupr(const_cast<wchar_t *="">(a.c_str()));</wchar_t>

#else

	std::wstring ret;

	for (int i = 0; i < (int)a.length(); i++) {

		wchar_t c = towupper(a[i]);

		ret += c;

	}

	return ret;

#endif

}

std::wstring toLower(std::wstring a)

{

#ifdef _WIN32

	return _wcslwr(const_cast<wchar_t *="">(a.c_str()));</wchar_t>

#else

	std::wstring ret;

	for (int i = 0; i < (int)a.length(); i++) {

		wchar_t c = towlower(a[i]);

		ret += c;

	}

	return ret;

#endif

}