/*
 Copyright 2020-2021 Brad Parker

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/

#include <QApplication>
#include <QCommandLineParser>
#include <QSettings>
#include <iostream>
#include "mainwindow.h"

#ifdef Q_OS_UNIX
#include <signal.h>

static void signal_handler(int) {
  QApplication::quit();
}
#endif

int main(int argc, char *argv[]) {
  QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

  QApplication app(argc, argv);
  app.setOrganizationName("reference_frontend");
  app.setApplicationName("reference_frontend");
  app.setApplicationVersion("1.0");

  QSettings::setDefaultFormat(QSettings::IniFormat);

  QCommandLineParser parser;
  parser.setApplicationDescription("reference_frontend");
  parser.addHelpOption();
  parser.addVersionOption();

  QCommandLineOption muteOption(QStringList() << "m" << "mute", QCoreApplication::translate("main", "Start with audio muted"));
  QCommandLineOption fsOption(QStringList() << "f" << "fullscreen", QCoreApplication::translate("main", "Start in fullscreen mode"));

  parser.addOption(fsOption);
  parser.addOption(muteOption);

  parser.addPositionalArgument("core", QCoreApplication::translate("main", "Core library to use"));
  parser.addPositionalArgument("rom", QCoreApplication::translate("main", "ROM file to use"));

  parser.process(app);

  QSurfaceFormat f;
  //f.setMajorVersion(4);
  //f.setMinorVersion(3);
  //f.setProfile(QSurfaceFormat::CoreProfile);
  //f.setOption(QSurfaceFormat::DebugContext);
  //f.setSwapInterval(0);

  QSurfaceFormat::setDefaultFormat(f);

  MainWindow w;
  w.setWindowTitle(app.applicationName());

  if(parser.isSet(muteOption)) {
    w.setCoreMuted(true);
  }

  const QStringList args = parser.positionalArguments();

  if(args.length() < 2) {
    std::cerr << "Please specify a core and a content file." << std::endl;
    return 1;
  }else{
    w.setCorePath(args.at(0));
    w.setROMPath(args.at(1));
  }

  w.resize(640, 480);
  w.show();

  if(parser.isSet(fsOption)) {
    w.setFullScreen(true);
  }

#ifdef Q_OS_UNIX
  struct sigaction sigact;
  sigact.sa_handler = signal_handler;
  sigemptyset(&sigact.sa_mask);
  sigact.sa_flags = 0;
  sigaction(SIGINT, &sigact, (struct sigaction*)NULL);
  sigaction(SIGTERM, &sigact, (struct sigaction*)NULL);
#endif

  return app.exec();
}