// This file is part of RSS Guard.
//
// Copyright (C) 2011-2015 by Martin Rotter <rotter.martinos@gmail.com>
//
// RSS Guard 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 3 of the License, or
// (at your option) any later version.
//
// RSS Guard 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 RSS Guard. If not, see <http://www.gnu.org/licenses/>.

#include "definitions/definitions.h"
#include "miscellaneous/application.h"
#include "miscellaneous/databasefactory.h"
#include "miscellaneous/debugging.h"
#include "miscellaneous/iconfactory.h"
#include "dynamic-shortcuts/dynamicshortcuts.h"
#include "gui/dialogs/formmain.h"
#include "gui/feedmessageviewer.h"
#include "gui/feedsview.h"
#include "gui/messagebox.h"
#include "network-web/silentnetworkaccessmanager.h"

// Needed for setting ini file format on Mac OS.
#ifdef Q_OS_MAC
#include <QSettings>
#endif

#include <QThread>
#include <QTranslator>
#include <QDebug>
#include <QTimer>


int main(int argc, char *argv[]) {
  //: Name of language, e.g. English.
  QObject::tr("LANG_NAME");
  //: Abbreviation of language, e.g. en.
  //: Use ISO 639-1 code here combined with ISO 3166-1 (alpha-2) code.
  //: Examples: "cs_CZ", "en_GB", "en_US".
  QObject::tr("LANG_ABBREV");
  //: Version of your translation, e.g. 1.0.
  QObject::tr("LANG_VERSION");
  //: Name of translator - optional.
  QObject::tr("LANG_AUTHOR");

  // Ensure that ini format is used as application settings storage on Mac OS.
#ifdef Q_OS_MAC
  QSettings::setDefaultFormat(QSettings::IniFormat);
#endif

  // Setup debug output system.
#if QT_VERSION >= 0x050000
  qInstallMessageHandler(Debugging::debugHandler);
#else
  qInstallMsgHandler(Debugging::debugHandler);
#endif

  // Instantiate base application object.
  Application application(APP_LOW_NAME, argc, argv);
  qDebug("Instantiated Application class.");

  // Check if another instance is running.
  if (application.sendMessage(APP_IS_RUNNING)) {
    qWarning("Another instance of the application is already running. Notifying it.");
    return EXIT_FAILURE;
  }

  // Add an extra path for non-system icon themes and set current icon theme
  // and skin.
  qApp->icons()->setupSearchPaths();
  qApp->icons()->loadCurrentIconTheme();
  qApp->skins()->loadCurrentSkin();

  // Load localization and setup locale before any widget is constructed.
  qApp->localization()->loadActiveLanguage();

  // These settings needs to be set before any QSettings object.
  Application::setApplicationName(APP_NAME);
  Application::setApplicationVersion(APP_VERSION);
  Application::setOrganizationName(APP_AUTHOR);
  Application::setOrganizationDomain(APP_URL);
  Application::setWindowIcon(QIcon(APP_ICON_PATH));

  qDebug().nospace() << "Creating main application form in thread: \'" << QThread::currentThreadId() << "\'.";

  // Instantiate main application window.
  FormMain main_window;

  // Set correct information for main window.
  main_window.setWindowTitle(APP_LONG_NAME);

  // Now is a good time to initialize dynamic keyboard shortcuts.
  DynamicShortcuts::load(qApp->userActions());

  // Display main window.
  if (qApp->settings()->value(GROUP(GUI), SETTING(GUI::MainWindowStartsHidden)).toBool() && SystemTrayIcon::isSystemTrayActivated()) {
    qDebug("Hiding the main window when the application is starting.");
    main_window.switchVisibility(true);
  }
  else {
    qDebug("Showing the main window when the application is starting.");
    main_window.show();

    if (qApp->settings()->value(GROUP(General), SETTING(General::FirstRun)).toBool()) {
      // This is the first time user runs this application.
      qApp->settings()->setValue(GROUP(General), General::FirstRun, false);

      if (MessageBox::show(&main_window, QMessageBox::Question, QObject::tr("Load initial feeds"),
                           QObject::tr("You started %1 for the first time, now you can load initial set of feeds.").arg(APP_NAME),
                           QObject::tr("Do you want to load initial set of feeds?"),
                           QString(), QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes) {
        qApp->mainForm()->tabWidget()->feedMessageViewer()->loadInitialFeeds();
      }
    }
  }

  // Display tray icon if it is enabled and available.
  if (SystemTrayIcon::isSystemTrayActivated()) {
    qApp->showTrayIcon();

    if (qApp->settings()->value(GROUP(General), SETTING(General::UpdateOnStartup)).toBool()) {
      QTimer::singleShot(STARTUP_UPDATE_DELAY, application.system(), SLOT(checkForUpdatesOnStartup()));
    }
  }

  // Setup single-instance behavior.
  QObject::connect(&application, SIGNAL(messageReceived(QString)), &application, SLOT(processExecutionMessage(QString)));
  qApp->showGuiMessage(QSL(APP_NAME), QObject::tr("Welcome to %1 %2.").arg(APP_NAME, APP_VERSION), QSystemTrayIcon::NoIcon);

  // Enter global event loop.
  return Application::exec();
}