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#include "fbgui.h"
#include "loggerengine.h"
#include "downloadmanager.h"
#include "javascriptinterface.h"

#include <iostream>
#include <QtWebKit>
#include <QxtCore>

QUrl baseURL(DEFAULT_URL);
QString binPath("");
QString downloadPath("/tmp/fbgui/downloads");
int updateInterval = DEFAULT_UPDATE_INTERVAL;
int debugMode = -1;

//-------------------------------------------------------------------------------------------
fbgui::fbgui()
{
	// setup basic debug
	qxtLog->disableLoggerEngine("DEFAULT");
	qxtLog->enableLogLevels(QxtLogger::DebugLevel);
	if (debugMode == 0){
		qxtLog->addLoggerEngine("std_logger", new LoggerEngine_std);
		qxtLog->initLoggerEngine("std_logger");
		qxtLog->setMinimumLevel("std_logger", QxtLogger::DebugLevel);
		qxtLog->debug() << "Initializing fbgui...";
	}

	// base of the gui
	createActions();
	checkHost();
	_webView = new QWebView(this);
	_webView->load(baseURL);

	// debug console split or normal browser
	if (debugMode == 1)
		setupDebugSplit();
	else
		setCentralWidget(_webView);

	// initialize javascript interface
	JavascriptInterface* jsi = new JavascriptInterface(_webView->page()->mainFrame());
	QObject::connect(jsi, SIGNAL(quitFbgui()), this, SLOT(close()));
	QObject::connect(_webView->page()->mainFrame(), SIGNAL(javaScriptWindowObjectCleared()),
						  jsi, SLOT(attachToDOM()));

	// initialize download manager
	DownloadManager* dm = new DownloadManager();
	QObject::connect(dm, SIGNAL(downloadInfo(const QString&, const double&)),
					jsi, SLOT(downloadInfo(const QString&, const double&)));
	QObject::connect(dm, SIGNAL(notify(const QString&)),
					jsi, SLOT(notify(const QString&)));
	QObject::connect(jsi, SIGNAL(requestFile(const QString&)), dm, SLOT(downloadFile(const QString&)));
	QObject::connect(dm, SIGNAL(updateProgress(const int&, const double&, const QString&)),
					jsi, SLOT(updateProgressBar(const int&, const double&, const QString&)));
	QObject::connect(dm, SIGNAL(downloadQueueEmpty()), jsi, SLOT(callbackOnDlQueueFinished()));

	// set properties
	setWindowTitle("fbgui");
	setAttribute(Qt::WA_QuitOnClose, true);
	setWindowFlags(Qt::FramelessWindowHint);
	showFullScreen();
}
//-------------------------------------------------------------------------------------------
void fbgui::createActions()
{
	// CTRL + X to kill the gui
	_quit = new QAction(tr("&quit"), this);
	_quit->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_X));
	this->addAction(_quit);
	connect(_quit, SIGNAL(triggered()), this, SLOT(close()));
}
//-------------------------------------------------------------------------------------------
void fbgui::setupDebugSplit()
{
	_debugConsole = new QTextEdit(this);
	_debugConsole->setWindowFlags(Qt::FramelessWindowHint);
	QPalette pal;
	pal.setColor(QPalette::Base, Qt::black);
	_debugConsole->setPalette(pal);
	_debugConsole->setTextColor(Qt::cyan);
	_debugConsole->insertPlainText("Debug console initialized.\n");
	// enable custom logger engine
	qxtLog->addLoggerEngine("fb_logger", new LoggerEngine_fb(_debugConsole));
	qxtLog->initLoggerEngine("fb_logger");
	qxtLog->setMinimumLevel("fb_logger", QxtLogger::DebugLevel);
	// display browser and debug in a splitter
	_splitter = new QSplitter(Qt::Vertical, this);
	_splitter->addWidget(_webView);
	_splitter->addWidget(_debugConsole);
	// CTRL + D  toggles debug window
	_toggleDebug = new QAction(tr("&toggleDebug"), this);
	_toggleDebug->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_D));
	addAction(_toggleDebug);
	connect(_toggleDebug, SIGNAL(triggered()), this, SLOT(toggleDebug()));
	setCentralWidget(_splitter);
}
//-------------------------------------------------------------------------------------------
void fbgui::toggleDebug()
{
	if (_debugConsole->isVisible())
		_debugConsole->hide();
	else
		_debugConsole->show();
}
//-------------------------------------------------------------------------------------------
void fbgui::checkHost() const
{
	// TODO instead of closing app, show error page from qrc
	QHostInfo hostInfo = QHostInfo::fromName(baseURL.host());
	if (hostInfo.error() != QHostInfo::NoError){
		qxtLog->debug() << "Lookup of " << baseURL.host() << "failed. Exiting...";
		exit(EXIT_FAILURE);
	}
}