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#include <QApplication>
#include <QSettings>
#include <QtCore>
#include <getopt.h>
#include <cstdlib>
#include <iostream>
#include "fbgui.h"

void printHelp()
{
    QTextStream qout(stdout);
    qout << QObject::tr("Usage: ./fbgui [OPTIONS]") << endl;
    qout << QObject::tr("Options:") << endl;
    qout << "-u <URL>, --url=<URL>           " << QObject::tr("Set which URL to load.") << endl;
    qout << "-d <dir>, --download=<dir>      " << QObject::tr("Specify the download directory.") << endl;
    qout << "-c <path>, --config=<path>      " << QObject::tr("Path to config file.") << endl;
    qout << "-D <level>, --debug=<level>     " << QObject::tr("Activate debug mode.") << endl;
    qout << "-h, --help                      " << QObject::tr("Prints usage information.") << endl;
    qout.flush();
    exit(EXIT_SUCCESS);
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv, QApplication::GuiServer);
    app.setOrganizationName("team_projekt_2011");
    app.setApplicationName("prebootGUI");
    binPath = QApplication::applicationDirPath();

    QTranslator translator;
    translator.load(":" + QLocale::system().name());
    app.installTranslator(&translator);

    // parse command line arguments
    QMap<QString, QString> clOpts;
    int longIndex = 0;
    static const char *optString = "c:u:d:s:t:D:h";
    static const struct option longOpts[] =
    {
    	{"config", required_argument, NULL, 'c'},
    	{"url", required_argument, NULL, 'u'},
    	{"download", required_argument, NULL, 'd'},
    	{"serial", required_argument, NULL, 's'},
    	{"trigger", required_argument, NULL, 't'},
    	{"debug", required_argument, NULL, 'D'},
    	{"help", no_argument, NULL, 'h'}
    };
    int opt = getopt_long(argc, argv, optString, longOpts, &longIndex);
    while (opt != -1)
    {
    	switch(opt)
        {
        	case 'c':
        		clOpts.insert("configFile", optarg);
        		break;
            case 'u':
            	clOpts.insert("url", optarg);
                break;
            case 'd':
            	clOpts.insert("downloadDir", optarg);
            	break;
            case 's':
            	clOpts.insert("serialLocation", optarg);
            	break;
            case 't':
            	clOpts.insert("trigger", optarg);
            	break;
            case 'D':
	    		clOpts.insert("debug", optarg);
	    		break;
            case 'h':
	    		clOpts.insert("help", "help");
	    		break;
        }
	opt = getopt_long(argc, argv, optString, longOpts, &longIndex);
    }

    if (clOpts.contains("help"))
        printHelp();

    if (clOpts.contains("debug"))
    	debugMode = clOpts.value("debug").toInt();
    else
    	debugMode = -1;

    // look for config file
    QString configFilePath;
    QFileInfo confInfo;
    if (clOpts.contains("configFile"))
    	configFilePath = clOpts.value("configFile");
    else {
    	confInfo = QFileInfo(QDir::home(),  ".fbgui.conf");
    	if (confInfo.exists())
    		configFilePath = confInfo.absoluteFilePath();
    	else {
    	    	confInfo = QFileInfo(QString("/etc/fbgui.conf"));
    	    	if (confInfo.exists())
    	    		configFilePath = QString("/etc/fbgui.conf");
    	        else
    	        	configFilePath = DEFAULT_CONFIG_PATH;
    	}
    }

    // read the config file
    QSettings confFileSettings(configFilePath, QSettings::IniFormat);
    confFileSettings.setIniCodec("UTF-8");

    if (clOpts.contains("url")) {
    	baseURL = QUrl(clOpts.value("url"));
    }
    else if (confFileSettings.contains("default/pbs_url")) {
    	baseURL = confFileSettings.value("default/pbs_url").toUrl();
    }
    else {
    	baseURL = DEFAULT_URL;
    }

    // setting directory for downloads
    if (clOpts.contains("downloadDir")){
    	downloadPath = clOpts.value("downloadDir");
    }
    else if (confFileSettings.contains("default/download_directory")){
    	downloadPath = confFileSettings.value("default/download_directory").toString();
    }
    else
    	downloadPath = DEFAULT_DOWNLOAD_DIR;

	if (confFileSettings.contains("default/update_interval")){
		updateInterval = confFileSettings.value("default/update_interval").toInt();
	}
	else updateInterval = DEFAULT_UPDATE_INTERVAL;

    // sets which file to watch to trigger loading of URL
    if (clOpts.contains("trigger"))
    	fileToTriggerURL = clOpts.value("trigger");
    else if (confFileSettings.contains("default/file_trigger"))
    	fileToTriggerURL = confFileSettings.value("default/file_trigger").toString();
    else
    	fileToTriggerURL = DEFAULT_FILE_TRIGGER;

	// set serial location
	if (clOpts.contains("serialLocation"))
		serialLocation = clOpts.value("serialLocation");
	else if (confFileSettings.contains("default/serial_location"))
		serialLocation = confFileSettings.value("default/serial_location").toString();
	else
		serialLocation = QString("/serial");

	// basic std out engine is ugly... not yet initialised so using qDebug
	qDebug() << "*************   CONFIG INFO   *************";
	qDebug() << "configFilePath: " << configFilePath.toUtf8();
	qDebug() << "baseURL:        " << baseURL.toString().toUtf8();
	qDebug() << "downloadDir :   " << downloadPath.toUtf8();
	qDebug() << "trigger:        " << fileToTriggerURL.toUtf8();
	qDebug() << "serialLocation: " << serialLocation.toUtf8();
	qDebug() << "*******************************************";

	// start fbgui
    fbgui gui;
    gui.show();
    return app.exec();
}