/*
 * This file is a part of CMSLU -- Content Management System like Unix
 * and is not publicly distributed
 * 
 * Copyright (c) 2008-2009, Tomasz Sowa
 * All rights reserved.
 * 
 */
 
#include <cstdlib>
#include <ctime>
#include <signal.h>
#include <iostream>

#include "../core/requestcontroller.h"
#include "../core/data.h"
#include "../core/log.h"
#include "../core/request.h"
#include "../core/db.h"
#include "../core/config.h"
#include "../core/notify.h"
#include "../core/plugin.h"


// singletons
// first 'data' then 'log' then 'request'
Data    data;
Log     log;
Log     nlog; // notify log (used by another thread)
Request request;
Db      db;
Config  config;
RequestController req_controller;
Notify  notify;
Plugin  plugin;


void signal_term(int)
{
	req_controller.SaveSessions();
	log << log1 << "cmslu stopped" << logend;

	exit(0);
}



void signal_hup(int)
{
	log << log1 << "SIGHUP received" << logend;
	data.signal_hup = true;
	config.ReadConfig(false); /* errors not to stdout */
}



void print_syntax()
{
	std::cout << "Syntax:" << std::endl;	
	std::cout << "  cmslu.fcgi config_file" << std::endl;	
}




int main(int argv, char ** argc)
{
	std::srand(std::time(0));

	if( argv != 2 )
	{
		print_syntax();	
		return 1;
	}

	data.config_file = argc[1];	


	
	if( !config.ReadConfig(true) ) /* errors to stdout */
		return 2;

	// closing descriptors only at the beginning
	// !! temporary we do not close standard output for errors
	// client postgresql uses it for reporting warnings (I don't know why)
	//close(2);

	if( !data.log_stdout )
	{
		close(1);
		data.stdout_is_closed = true;
	}

	
	log.Init(data.log_level, data.log_file, data.log_stdout);
	nlog.Init(data.log_level, data.log_notify_file, false);
	db.Init(data.db_database, data.db_user, data.db_pass);

	plugin.LoadPlugins(data.plugin_file);

	request.Init();
	
	if( !req_controller.Init() )
		return 1;

	if( !notify.Init(data.templates) )
		return 2;

	signal(SIGTERM, signal_term);
	signal(SIGINT,  signal_term);
	signal(SIGHUP,  signal_hup);

	req_controller.LoadSessions();
	log << log1 << "cmslu started" << logend;

	while( true )
	{
		//log << log2 << "checking for table consistency:" << logend;
		// !! zrobic wyjatek dla root
		//db.CheckAllUrlSubject();

		req_controller.Loop();
		
		if( data.signal_hup )
			data.signal_hup = false;	
	}

return 0;
}