// Time Zones
//
// Douglas Thrift
//
// $Id$

#include "TimeZones.hpp"

int main(int argc, char* argv[])
{
	TimeZones zones;

	return 0;
}

TimeZones::TimeZones()
{
	time(&now);
	display();
}

void TimeZones::display()
{
	cout << "Content-Type: text/html\n\n";

	struct tm* gmt = gmtime(&now);
	char date[61];

	strftime(date, 61, "%A, %B %e,&nbsp;%Y %l:%M:%S&nbsp;%p&nbsp;%Z", gmt);

	cout << "<tr><td>Greenwich, England</td><td>" << date << "</td>\n";

	list<pair<string, string> > zones;
	ifstream fin("timezones.dat");

	while (fin.good())
	{
		string location, zone;

		getline(fin, location, '=');
		getline(fin, zone);

		if (zone != "") zones.push_back(pair<string, string>(location, zone));
	}

	fin.close();

	for (list<pair<string, string> >::iterator itor = zones.begin(); itor !=
		zones.end(); itor++)
	{
		display(itor->first, itor->second);
	}
}

void TimeZones::display(const string& location, const string& zone)
{
	sputenv("TZ=" + zone);
	tzset();
	
	struct tm* when = localtime(&now);
	char date[61];

	strftime(date, 61, "%A, %B %e,&nbsp;%Y %l:%M:%S&nbsp;%p&nbsp;%Z", when);

	cout << "<tr><td>" << location << "</td><td>" << date << "</td></tr>\n";
}