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#include <Core/Core.h>
#include <signal.h>
using namespace Upp;

TcpSocket server;
StaticMutex ServerMutex;

void signal_callback_handler(int signum)
{
	Cout() << "Caught signal " << signum << EOL;
	// Terminate program
	exit(signum);
}

void Server()
{
	bool stop = false; // Of course it is not recommended to manipulate the server through
	                   // the client! This condition is for experimental testing purposes!
	for(;;) {

		TcpSocket socket;
		LOG("Waiting...");
		ServerMutex.Enter();

		bool b = socket.Accept(server);
		ServerMutex.Leave();

		if((b) && stop == false) {
			LOG("Connection accepted");
			HttpHeader http;
			http.Read(socket);
			String html;
			html << "<html>"
				 << "<b>Method:</b> " << http.GetMethod() << "<br>"
				 << "<b>URI:</b> " << http.GetURI() << "<br>";
			stop = (http.GetURI().Find("stop=ok") > -1);
			if(stop)
				html << "<p>atenção! vai encerrar o servidor!</p>"
					 << "<br>";
			for(int i = 0; i < http.fields.GetCount(); i++)
				html << "<b>" << http.fields.GetKey(i) << ":</b> " << http.fields[i] << "<br>";
			int len = (int)http.GetContentLength();
			if(len > 0)
				socket.GetAll(len);
			html << "<b><i>Current time:</i></b> " << GetSysTime() << "</html>";
			HttpResponse(socket, http.scgi, 200, "OK", "text/html", html);
			if(stop) {
				socket.Close();
				server.Close();
				exit(0);
			}
			signal(SIGINT, signal_callback_handler);
		}
	}
}

CONSOLE_APP_MAIN
{

	StdLogSetup(LOG_COUT | LOG_FILE);

	if(!server.Listen(4000, 10)) {
		LOG("Cannot open server port for listening\r\n");
		return;
	}
#ifdef _MULTITHREADED
	const int NTHREADS = 10;
	for(int i = 0; i < NTHREADS; i++)
		Thread::Start(callback(Server));
#endif
	Server();
}