#include "client.h"
#include "clicklabel.h"
#include "audio.h"
#include "util.h"
#include "pacman.pb.h"

extern "C" {
#include "enet/enet.h"
}

Client::Client()
  : m_ambientMuted(false)
{
  m_settings = new QSettings(qApp->organizationName(), qApp->applicationName(), this);
  m_dialog = new QDialog(this);
  m_mainWidget = new MainWidget(this);
  createMenu();
  m_mainWidget->setAmbientMuted(m_ambientMuted);
  setCentralWidget(m_mainWidget);
  showConnectDialog();
  m_dialog->setFocus();
}

void Client::createMenu()
{
  QMenu *fileMenu = menuBar()->addMenu("&File");

  bool sound = AudioManager::self()->isWorking();
  bool muted = !sound || m_settings->value("muted", false).toBool();
  AudioManager::self()->setMuted(muted);

  /* toggle sound: corner icon */
  ClickLabel *toggleSound = new ClickLabel("Toggle Sound", this);
  toggleSound->setToolTip("Toggle Sound");
  toggleSound->setFixedWidth(20);
  toggleSound->setFixedHeight(16);
  toggleSound->setAlignment(Qt::AlignBottom);
  toggleSound->setPixmap(soundIcon(!muted));
  if (sound)
  {
    connect(toggleSound, SIGNAL(clicked()), this, SLOT(toggleSound()));
    connect(AudioManager::self(), SIGNAL(mutedChanged(bool)), this, SLOT(mutedChanged(bool)));
  }
  menuBar()->setCornerWidget(toggleSound);

  /* toggle sound: menu */
  QAction *toggleSoundAction = new QAction("&Sound", this);
  toggleSoundAction->setToolTip("Toggle Sound");
  toggleSoundAction->setCheckable(true);
  toggleSoundAction->setChecked(!muted);
  toggleSoundAction->setDisabled(!sound);
  fileMenu->addAction(toggleSoundAction);
  if (sound)
  {
    connect(toggleSoundAction, SIGNAL(triggered()), this, SLOT(toggleSound()));
    connect(this, SIGNAL(setMuteActionsChecked(bool)), toggleSoundAction, SLOT(setChecked(bool)));
  }

  /* toggle ambient sound: menu */
  m_ambientMuted = muted || m_settings->value("ambientMuted", false).toBool();
  QAction *toggleAmbientAction = new QAction("&Ambient Sound", this);
  toggleAmbientAction->setToolTip("Toggle Ambient Sound");
  toggleAmbientAction->setCheckable(true);
  toggleAmbientAction->setChecked(!m_ambientMuted);
  toggleAmbientAction->setDisabled(muted);
  fileMenu->addAction(toggleAmbientAction);
  if (sound)
  {
    connect(toggleAmbientAction, SIGNAL(triggered(bool)), this, SLOT(enableAmbientSound(bool)));
    connect(this, SIGNAL(setMuteActionsChecked(bool)), toggleAmbientAction, SLOT(setEnabled(bool)));
  }

  /* connect/disconnect entry */
  fileMenu->addSeparator();
  QAction *connectAction = new QAction("C&onnect", this);
  fileMenu->addAction(connectAction);
  connect(connectAction, SIGNAL(triggered()), this, SLOT(showConnectDialog()));
  connect(m_mainWidget, SIGNAL(connected(bool)), connectAction, SLOT(setDisabled(bool)));

  QAction *disconnectAction = new QAction("Di&sconnect", this);
  disconnectAction->setDisabled(true);
  fileMenu->addAction(disconnectAction);
  connect(disconnectAction, SIGNAL(triggered()), m_mainWidget, SLOT(doDisconnect()));
  connect(m_mainWidget, SIGNAL(connected(bool)), disconnectAction, SLOT(setEnabled(bool)));

  /* exit entry */
  fileMenu->addSeparator();
  QAction *quitAction = new QAction("E&xit", this);
  quitAction->setIcon(QIcon::fromTheme(QLatin1String("application-exit")));
  fileMenu->addAction(quitAction);
  connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));

  QAction *aboutAction= menuBar()->addAction("Ab&out");
  connect(aboutAction, SIGNAL(triggered()), this, SLOT(showAbout()));
}

void Client::toggleSound()
{
  if (!AudioManager::self()->isWorking())
    return;
  bool muted = !AudioManager::self()->isMuted();
  AudioManager::self()->setMuted(muted);
  /* mute ambient sound again if explicitly muted */
  if (!muted && m_ambientMuted)
    m_mainWidget->setAmbientMuted(true);
}

void Client::mutedChanged(bool muted)
{
  ClickLabel *tmp = qobject_cast<ClickLabel *>(menuBar()->cornerWidget());
  tmp->setPixmap(soundIcon(!muted));
  m_settings->setValue("muted", muted);
  emit setMuteActionsChecked(!muted);
}

void Client::enableAmbientSound(bool enabled)
{
  if (!AudioManager::self()->isWorking())
    return;
  m_ambientMuted = !enabled;
  m_mainWidget->setAmbientMuted(m_ambientMuted);
  m_settings->setValue("ambientMuted", m_ambientMuted);
}

QPixmap Client::soundIcon(bool enabled) const
{
  QImage img(enabled ? ":/soundon" : ":/soundoff");
  img.setColor(1, menuBar()->palette().color(
      enabled ? QPalette::Active : QPalette::Disabled,
      QPalette::ButtonText).rgba());
  return QPixmap::fromImage(img);
}

void Client::showAbout()
{
  if (m_dialog != NULL)
  {
    delete m_dialog;
    m_dialog = new QDialog(this);
  }
  m_dialog->setWindowTitle("About Pacman");
  m_dialog->setWindowFlags(m_dialog->windowFlags() & ~Qt::WindowContextHelpButtonHint);

  QGridLayout *layout = new QGridLayout(m_dialog);
  layout->setSizeConstraint(QLayout::SetFixedSize);

  QString actoricons;
  for(int i = 0; Color::order[i] != Color::none; ++i)
    actoricons += QString("<img src=\":/actor%1icon\"/>").arg(i + 1);

  const QString text = QString(
      "<h3>Multiplayer Pacman %1</h3>"
      "Authors: H. Demel, B. Mallinger, M. Mausz, M. Racz<br/>"
      "<br/>"
      "Gameplay based on <a href=\"http://en.wikipedia.org/wiki/Pac-Man\">Pacman</a>"
      ", &copy; <a href=\"http://www.namco.co.jp/\">Namco</a> 1980<br/>"
      "<br/>"
      "Developed using Qt %2 (%3 bit)<br/>")
      .arg(actoricons, QLatin1String(QT_VERSION_STR), QString::number(QSysInfo::WordSize));

  QLabel *label = new QLabel(text, m_dialog);
  label->setWordWrap(true);
  label->setOpenExternalLinks(true);
  label->setTextInteractionFlags(Qt::TextBrowserInteraction);

  QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Close, Qt::Horizontal, m_dialog);
  QPushButton *closeButton = buttonBox->button(QDialogButtonBox::Close);
  buttonBox->addButton(closeButton, QDialogButtonBox::ButtonRole(QDialogButtonBox::RejectRole | QDialogButtonBox::AcceptRole));
  connect(buttonBox , SIGNAL(rejected()), m_dialog, SLOT(reject()));

  layout->addWidget(label, 0, 1, 4, 4);
  layout->addWidget(buttonBox, 4, 0, 1, 5);
  m_dialog->show();
}

void Client::showConnectDialog()
{
  if (m_dialog != NULL)
  {
    delete m_dialog;
    m_dialog = new QDialog(this);
  }
  m_dialog->setWindowTitle("Connect");

  QGridLayout *layout = new QGridLayout(m_dialog);
  layout->setSizeConstraint(QLayout::SetFixedSize);

  QLabel *srvLabel = new QLabel("Address:", m_dialog);
  QLineEdit *srv = new QLineEdit(m_settings->value("address", "127.0.0.1").toString(), m_dialog);
  QLabel *portLabel = new QLabel("Port:", m_dialog);
  QDoubleSpinBox *port = new QDoubleSpinBox(m_dialog);
  port->setDecimals(0);
  port->setMinimum(1);
  port->setMaximum(65535);
  port->setValue(m_settings->value("port", Constants::Networking::port).toUInt());

  QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel,
                                                     Qt::Horizontal, m_dialog);
  QPushButton *okButton = buttonBox->button(QDialogButtonBox::Ok);
  QPushButton *cancelButton = buttonBox->button(QDialogButtonBox::Cancel);
  buttonBox->addButton(okButton, QDialogButtonBox::ButtonRole(QDialogButtonBox::AcceptRole));
  buttonBox->addButton(cancelButton, QDialogButtonBox::ButtonRole(QDialogButtonBox::RejectRole));
  connect(buttonBox, SIGNAL(rejected()), m_dialog, SLOT(reject()));
  connect(buttonBox, SIGNAL(accepted()), m_dialog, SLOT(accept()));

  layout->addWidget(srvLabel, 0, 0);
  layout->addWidget(srv, 0, 1);
  layout->addWidget(portLabel, 1, 0);
  layout->addWidget(port, 1, 1);
  layout->addWidget(buttonBox, 4, 0, 1, 5);

  connect(m_dialog, SIGNAL(accepted()), this, SLOT(onAcceptConnectDialog()));
  m_dialog->show();
}

void Client::onAcceptConnectDialog()
{
  if (m_dialog == NULL)
    return;
  QGridLayout *layout = static_cast<QGridLayout *>(m_dialog->layout());
  QLineEdit *srv = static_cast<QLineEdit *>(layout->itemAtPosition(0, 1)->widget());
  QDoubleSpinBox *port = static_cast<QDoubleSpinBox *>(layout->itemAtPosition(1, 1)->widget());
  m_settings->setValue("address", srv->text());
  m_settings->setValue("port", int(port->value()));
  m_mainWidget->doConnect(srv->text(), int(port->value()));
}

bool Constants::server = false;

int main(int argc, char **argv)
{
  /* Verify that the version of the library that we linked against is
   * compatible with the version of the headers we compiled against.
   */
  GOOGLE_PROTOBUF_VERIFY_VERSION;

  if (enet_initialize () != 0)
  {
    qCritical() << "An error occurred while initializing ENet";
    return EXIT_FAILURE;
  }

  Q_INIT_RESOURCE(pacman);
  QApplication app(argc, argv, true);
  app.setOrganizationName("TU Wien FOOP");
  app.setApplicationName("Pacman Client");
  app.setWindowIcon(QIcon(":/appicon"));

  qsrand(QTime(0, 0, 0).secsTo(QTime::currentTime()));

  AudioManager::self();

  Client client;
  client.show();
  client.setWindowTitle(app.applicationName());

  int ret = app.exec();

  enet_deinitialize();

  /* Delete all global objects allocated by libprotobuf */
  google::protobuf::ShutdownProtobufLibrary();

  return ret;
}