/*
 * Copyright (c) 2006 Sean C. Rhea (srhea@srhea.net)
 *
 * 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
 */

#include <QApplication>
#include <QtGui>
#include "ChooseCyclistDialog.h"
#include "MainWindow.h"
#include "Settings.h"
#include "TrainDB.h"

#ifdef Q_OS_X11
#include <X11/Xlib.h>
#endif

QApplication *application;
bool restarting = false;

int
main(int argc, char *argv[])
{
    int ret=2; // return code from qapplication, default to error

#ifdef Q_OS_X11
    XInitThreads();
#endif

#ifdef Q_OS_MACX
    if ( QSysInfo::MacintoshVersion > QSysInfo::MV_10_8 )
    {
        // fix Mac OS X 10.9 (mavericks) font issue
        // https://bugreports.qt-project.org/browse/QTBUG-32789
        qDebug() << "insertSubstitution .Lucida Grande UI for Lucida Grande";
        //QStringList list;
        //list.append("Lucida Grande");
        //list.append("LucidaGrande");
        //QFont::insertSubstitutions(".Lucida Grande UI", list);
        //QFont::insertSubstitution(".Lucida Grande UI", "Lucida Grande");
        QFont::insertSubstitution("LucidaGrande", "Lucida Grande");
    }
#endif

    // create the application -- only ever ONE regardless of restarts
    application = new QApplication(argc, argv);

    // set defaultfont
    QFont font;
    font.fromString(appsettings->value(NULL, GC_FONT_DEFAULT, QFont().toString()).toString());
    font.setPointSize(appsettings->value(NULL, GC_FONT_DEFAULT_SIZE, 12).toInt());
    application->setFont(font); // set default font


    // creating that first mainwindow
    do {

        // lets not restart endlessly
        restarting = false;

        //this is the path within the current directory where GC will look for
        //files to allow USB stick support
        QString localLibraryPath="Library/GoldenCheetah";

        //this is the path that used to be used for all platforms
        //now different platforms will use their own path
        //this path is checked first to make things easier for long-time users
        QString oldLibraryPath=QDir::home().path()+"/Library/GoldenCheetah";

        //these are the new platform-dependent library paths
#if defined(Q_OS_MACX)
        QString libraryPath="Library/GoldenCheetah";
#elif defined(Q_OS_WIN)
        QString libraryPath=QDesktopServices::storageLocation(QDesktopServices::DataLocation) + "/GoldenCheetah";
#else
        // Q_OS_LINUX et al
        QString libraryPath=".goldencheetah";
#endif

        // or did we override in settings?
        QString sh;
        if ((sh=appsettings->value(NULL, GC_HOMEDIR).toString()) != "") localLibraryPath = sh;

        // lets try the local library we've worked out...
        QDir home = QDir();
        if(home.exists(localLibraryPath)) {

            home.cd(localLibraryPath);

        } else {

            // YIKES !! The directory we should be using doesn't exist!
            home = QDir::home();
            if (home.exists(oldLibraryPath)) { // there is an old style path, lets fo there
                home.cd(oldLibraryPath);
            } else {

                if (!home.exists(libraryPath)) {
                    if (!home.mkpath(libraryPath)) {

                    qDebug()<<"Failed to create library path\n";
                    exit(0);

                    }
                }
                home.cd(libraryPath);
            }
        }

        // install QT Translator to enable QT Dialogs translation
        // we may have restarted JUST to get this!
        QTranslator qtTranslator;
        qtTranslator.load("qt_" + QLocale::system().name(), QLibraryInfo::location(QLibraryInfo::TranslationsPath));
        application->installTranslator(&qtTranslator);

        // Language setting (default to system locale)
        QVariant lang = appsettings->value(NULL, GC_LANG, QLocale::system().name());

        // Load specific translation
        QTranslator gcTranslator;
        gcTranslator.load(":translations/gc_" + lang.toString() + ".qm");
        application->installTranslator(&gcTranslator);

        // Initialize metrics once the translator is installed
        RideMetricFactory::instance().initialize();

        // Initialize global registry once the translator is installed
        GcWindowRegistry::initialize();

        // initialise the trainDB
        trainDB = new TrainDB(home);

        QStringList args(application->arguments());

        // lets reopen last athlete
        QVariant lastOpened;
        if(args.size() > 1) {
            lastOpened = args.at(1);
        } else {
            lastOpened = appsettings->value(NULL, GC_SETTINGS_LAST);
        }

        bool anyOpened = false;
        if (lastOpened != QVariant()) {
            QStringList list = lastOpened.toStringList();
            QStringListIterator i(list);
            while (i.hasNext()) {
                QString cyclist = i.next();
                if (home.cd(cyclist)) {
                    MainWindow *mainWindow = new MainWindow(home);
                    mainWindow->show();
                    home.cdUp();
                    anyOpened = true;
                }
            }
        }

        // need to ask the user
        if (!anyOpened) {
            ChooseCyclistDialog d(home, true);
            d.setModal(true);

            // choose cancel?
            if ((ret=d.exec()) != QDialog::Accepted) {
                delete trainDB;
                return ret;
            }

            // chosen, so lets get the choice..
            home.cd(d.choice());
            if (!home.exists()) {
                delete trainDB;
                exit(0);
            }

            // .. and open a mainwindow
            MainWindow *mainWindow = new MainWindow(home);
            mainWindow->show();
        }

        ret=application->exec();

        // close trainDB
        delete trainDB;

    } while (restarting);

    return ret;
}