#include "Localization.h"

static std::string s_locale;
static std::string s_modpath;

void setUsedLocale(const std::string& s)
{
	s_locale = s;
}

const char *getUsedLocale()
{
	return s_locale.c_str();
}

void setLocalisationModPath(const std::string& s)
{
	s_modpath = s;
	stringToLower(s_modpath);
}

// hackish
// intended to be used only for paths which are known to start with the mod path,
// but can deal with it if this is not the case
std::string localisePathInternalModpath(const std::string &path)
{
	std::string tmp = path;
	stringToLower(tmp);

	if(!strncmp(tmp.c_str(), s_modpath.c_str(), s_modpath.length()))
		return localisePath(path, s_modpath);

	return localisePath(path);
}

std::string localisePath(const std::string &path, const std::string& modpath /* = "" */)
{
	if (s_locale.empty() || s_locale == "-")
		return path;
	if(path.length() < modpath.length())
		return path;

	const std::string fname = path.substr(modpath.length());

	/* we first try with complete locale name, i.e "locales/en_US/" */
	std::string localisedPath = modpath + "locales/" + s_locale + "/" + fname;

	if (exists(localisedPath.c_str()))
		return localisedPath;

	/* ok didn't work, let's retry with only language part of locale name, i.e "locales/en/" */
	const size_t found = s_locale.find('_');

	/* hmm, seems like we didn't have a full locale name anyway, use original path */
	if (found == std::string::npos)
		return path;

	localisedPath = modpath + "locales/" + s_locale.substr(0,found) + "/" + fname;

	/* hooray we found a file! */
	if (exists(localisedPath.c_str()))
		return localisedPath;

	/* seems like we don't have a localized version of the file available, use original path */
	return path;
}