#include "clientapp.h"

#include "../connectwindow/connectwindow.h"
#include "../toolbar/toolbar.h"
#include "../net/serverconnection.h"

#include <QNetworkInterface>
#include <QTranslator>
#include <QLibraryInfo>

ClientApp::ClientApp(int& argc, char** argv)
	: QApplication(argc, argv)
	, _connectionMode(ConnectionMode::None)
	, _examMode(false)
	, _connection(nullptr)
{
	/* some values */
	setOrganizationName("openslx");
	setOrganizationDomain("openslx.org");
	setApplicationName("pvsclient");
	setQuitOnLastWindowClosed(false);

	/* configuration */
	QSettings::setPath(QSettings::IniFormat, QSettings::SystemScope, "/opt/");

	/* parse parameters and keep the unparsed ones */
	_arguments = parseParameters();

	/* set translator */
	// System strings
	auto *qtTranslator = new QTranslator(this);
	if (!qtTranslator->load(QLocale::system(), "qt", "_", QLibraryInfo::location(QLibraryInfo::TranslationsPath))) {
		qDebug() << "Could not load system string translations" << QLocale::system() << QLibraryInfo::location(QLibraryInfo::TranslationsPath);
	} else {
		installTranslator(qtTranslator);
	}
	// App specific
	auto *translator = new QTranslator(this);
	if (!translator->load(QLocale::system(), ":/", "l_")) {
		qDebug() << "Could not load app translations" << QLocale::system();
	} else {
		installTranslator(translator);
	}

	_connectWindow = new ConnectWindow(nullptr);
	connect(_connectWindow, &ConnectWindow::connected, this, &ClientApp::connected);
	if (_connectionMode == ConnectionMode::Auto) {
		_toolbar = new Toolbar(true); // auto connect client without session ID.
	} else if (_connectionMode == ConnectionMode::Session) {
		_toolbar = new Toolbar(_sessionName.toUtf8()); // connect client with given session ID.
	} else {
		_toolbar = new Toolbar(); // create normal client.
	}
	_toolbar->setVisible(!_examMode);

}

/* parse arguments and return a list with the unused arguments */
QStringList ClientApp::parseParameters()
{
	QStringList rest;
	for (const QString &a : QApplication::arguments()) {
		if (a == "--exam-mode") {
			_examMode = true;
		} else if (a == "--auto") {
			_connectionMode = ConnectionMode::Auto;
		} else if (a.startsWith("--session=")) {
			_connectionMode = ConnectionMode::Session;
			_sessionName = a.mid(10);
		} else if (a.startsWith("--config=")) {
			_iniPath = a.mid(9);
		} else {
			rest << a;
		}
	}
	return rest;
}

QStringList ClientApp::arguments()
{
	return _arguments;
}

QSharedPointer<QSettings> ClientApp::getSettings()
{
	QSharedPointer<QSettings> set;
	if (_iniPath.isEmpty()) {
		/* default location (system scope) */
		set = QSharedPointer<QSettings>(new QSettings(QSettings::IniFormat, QSettings::SystemScope, "openslx/pvs2", "pvs2"));
	} else {
		/* use _iniPath to find ini file */
		set = QSharedPointer<QSettings>(new QSettings(_iniPath, QSettings::IniFormat));
	}
	set->setIniCodec("UTF-8");
	return set;
}

void ClientApp::connected(ServerConnection* connection)
{
	_connection = connection;
	connect(_connection, &ServerConnection::disconnected, this, &ClientApp::disconnected);
}

void ClientApp::disconnected(ServerConnection* connection)
{
	if (connection != nullptr)
		connection->blockSignals(true);
	if (_connection == connection) {
		_connection = nullptr;
	}
}