/*
 *   ORXONOX - the hottest 3D action shooter ever to exist
 *                    > www.orxonox.net <
 *
 *
 *   License notice:
 *
 *   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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 *   Author:
 *      Benjamin Knecht <beni_at_orxonox.net>, (C) 2007
 *      Reto Grieder
 *   Co-authors:
 *      ...
 *
 */

 /**
 @file
 @brief Entry point of the program.
  */

#include "OrxonoxStableHeaders.h"

#include <exception>
#include <cassert>

#include "OrxonoxConfig.h"
#include "util/Debug.h"
#include "util/SignalHandler.h"
#include "core/ConfigFileManager.h"
#include "core/CommandLine.h"
#include "core/CommandExecutor.h"
#include "core/Identifier.h"
#include "core/Core.h"
#include "core/Language.h"

#include "gamestates/GSRoot.h"
#include "gamestates/GSGraphics.h"
#include "gamestates/GSStandalone.h"
#include "gamestates/GSServer.h"
#include "gamestates/GSClient.h"
#include "gamestates/GSDedicated.h"
#include "gamestates/GSGUI.h"
#include "gamestates/GSIOConsole.h"

#ifdef ORXONOX_PLATFORM_APPLE
#include <CoreFoundation/CoreFoundation.h>

// This function will locate the path to our application on OS X,
// unlike windows you can not rely on the curent working directory
// for locating your configuration files and resources.
             std::string macBundlePath()
{
    char path[1024];
    CFBundleRef mainBundle = CFBundleGetMainBundle();
    assert(mainBundle);

    CFURLRef mainBundleURL = CFBundleCopyBundleURL(mainBundle);
    assert(mainBundleURL);

    CFStringRef cfStringRef = CFURLCopyFileSystemPath( mainBundleURL, kCFURLPOSIXPathStyle);
    assert(cfStringRef);

    CFStringGetCString(cfStringRef, path, 1024, kCFStringEncodingASCII);

    CFRelease(mainBundleURL);
    CFRelease(cfStringRef);

    return std::string(path);
}
#endif


SetCommandLineArgument(settingsFile, "orxonox.ini");
SetCommandLineArgument(configFileDirectory, "");

int main(int argc, char** argv)
{
    using namespace orxonox;

    // create a signal handler (only active for linux)
    SignalHandler signalHandler;
    signalHandler.doCatch(argv[0], Core::getLogPathString() + "orxonox_crash.log");

    // Parse command line arguments
    try
    {
        CommandLine::parseAll(argc, argv);
    }
    catch (ArgumentException& ex)
    {
        COUT(1) << ex.what() << std::endl;
        COUT(0) << "Usage:" << std::endl << "orxonox " << CommandLine::getUsageInformation() << std::endl;
    }

    // Do this after parsing the command line to allow customisation
    Core::postMainInitialisation();

    // Create the ConfigFileManager before creating the GameStates in order to have
    // setConfigValues() in the constructor (required).
    ConfigFileManager* configFileManager = new ConfigFileManager();
    configFileManager->setFilename(ConfigFileType::Settings, CommandLine::getValue("settingsFile").getString());
    // create the Core settings to configure the output level
    Language* language = new Language();
    Core*     core     = new Core();

    // put GameStates in its own scope so we can destroy the identifiers at the end of main().
    {
        // create the gamestates
        GSRoot root;
        GSGraphics graphics;
        GSStandalone standalone;
        GSServer server;
        GSClient client;
        GSDedicated dedicated;
        GSGUI gui;
        GSIOConsole ioConsole;

        // make the hierarchy
        root.addChild(&graphics);
        graphics.addChild(&standalone);
        graphics.addChild(&server);
        graphics.addChild(&client);
        graphics.addChild(&gui);
        root.addChild(&ioConsole);
        root.addChild(&dedicated);

        // Here happens the game
        root.start();
    }

    // destroy singletons
    delete core;
    delete language;
    delete configFileManager;

    // Clean up class hierarchy stuff (identifiers, xmlport, configvalue, consolecommand)
    Identifier::destroyAllIdentifiers();
    // destroy command line arguments
    CommandLine::destroyAllArguments();
    // Also delete external console command that don't belong to an Identifier
    CommandExecutor::destroyExternalCommands();

    return 0;
}