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/***************************************************************************
 *   Copyright (C) November 26, 2008, 3:00 PM by Mattias Runge             *
 *   mattias@runge.se                                                      *
 *   main.cpp                                                              *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

using namespace std;

#include <stdlib.h>
#include <iostream>
#include <signal.h>

#include "version.h"
#include "Tools/tools.h"
#include "SyslogStream/syslogstream.h"
#include "Settings/settings.h"
#include "Socket/server.h"
#include "CanNet/cannetmanager.h"
#include "Socket/asyncsocket.h"
#include "VM/virtualmachine.h"
#include "CanNet/candebug.h"

int cleanUp();
void handler(int status);

int main(int argc, char** argv)
{
    signal(SIGTERM, handler);
    signal(SIGINT, handler);
    signal(SIGQUIT, handler);
    signal(SIGABRT, handler);
    signal(SIGPIPE, handler);

    SyslogStream &slog = SyslogStream::getInstance();

    slog << "Atom " + ftos(VERSION) + " starting...\n";
    slog << "Written by Mattias Runge 2008-2009\n\n";

    if (file_exists("/etc/atom.conf"))
    {
        if (!Settings::read("/etc/atom.conf"))
        {
            return cleanUp();
        }
    }
    else
    {
        if (!Settings::read("atom.conf"))
        {
            return cleanUp();
        }
    }

    VirtualMachine &vm = VirtualMachine::getInstance();
    vm.start();

    string canDebugPort = Settings::get("CanDebugPort");
    if (canDebugPort != "")
    {
        CanDebug &canDebug = CanDebug::getInstance();
        canDebug.setSettings(stoi(canDebugPort), "CanDebug");
        canDebug.start();
    }
    else
    {
        slog << "CanDebugPort is not defined, can not start CanDebug socket\n";
    }

    CanNetManager &canMan = CanNetManager::getInstance();
    canMan.start();

    if (Settings::get("DaemonMode") == "yes")
    {
        slog << "Entering daemon mode...\n";
        if (daemon(0, 0) == -1)
        {
            slog << "Could not enter daemon mode. Exiting...\n";
            return cleanUp();
        }
    }

    vm.join();

    return cleanUp();
}

int cleanUp()
{
    SyslogStream &slog = SyslogStream::getInstance();

    slog << "\n";
    slog << "Goodbye!\n";

    CanDebug::deleteInstance();
    VirtualMachine::deleteInstance();
    CanNetManager::deleteInstance();
    SyslogStream::deleteInstance();

    return EXIT_SUCCESS;
}

void handler(int status)
{
    exit(cleanUp());
}