// Google Tron
//
// Douglas Thrift
//
// $Id$

#include <cxx/standard.hh>

#include <api/process.hpp>
#include <app/simple.hpp>
#include <xml/textwriter.hpp>

#include "GoogleTron.hpp"
#include "GzipWriter.hpp"
#include "Sleep.hpp"

int Main(const app::Options &options)
{
	GoogleTron tron(_B("sitemap.gz"));

	return 0;
}

GoogleTron::GoogleTron(const cse::String &sitemap) : working(true), sitemap(sitemap)
{
	// XXX: start some threads
}

GoogleTron::~GoogleTron()
{
	// XXX: wait on threads
	
	working = false;

	// XXX: wait on output thread
}

int GoogleTron::Output()
{
	_S<GzipWriter> gzip(sitemap);
	_S<xml::TextWriter> writer(gzip);
	xml::ScopeElement urlset(writer, _B("urlset"));

	writer.SetAttribute(_B("xmlns"), _B("http://www.google.com/schemas/sitemap/0.84"));

	do
	{
		Sleep();

		_synchronized (queueLock)
			if (queue.size())
			{
				xml::ScopeElement url_(writer, _B("url"));
				const Url &url(queue.front());

				{
					xml::ScopeElement loc(writer, _B("loc"));

					writer.OutputText(url.GetLocation());
				}

				{
					xml::ScopeElement lastmod(writer, _B("lastmod"));

					writer.OutputText(url.GetModified());
				}

				{
					xml::ScopeElement changefreq(writer, _B("changefreq"));

					writer.OutputText(url.GetFrequency());
				}

				{
					xml::ScopeElement priority(writer, _B("priority"));

					writer.OutputText(url.GetPriority());
				}

				queue.pop();
			}
	}
	while (working);

	return 0;
}