17 files changed, 689 insertions, 520 deletions

diff --git a/api/logic/CMakeLists.txt b/api/logic/CMakeLists.txt
index 02e9afbe..ffecb073 100644
--- a/api/logic/CMakeLists.txt
+++ b/api/logic/CMakeLists.txt
@@ -412,9 +412,8 @@ add_unit_test(JavaVersion
 	)
 
 set(TRANSLATIONS_SOURCES
-	# Translations
-	trans/TranslationDownloader.h
-	trans/TranslationDownloader.cpp
+	translations/TranslationsModel.h
+	translations/TranslationsModel.cpp
 )
 
 set(TOOLS_SOURCES
diff --git a/api/logic/trans/TranslationDownloader.cpp b/api/logic/trans/TranslationDownloader.cpp
deleted file mode 100644
index 61e24c9a..00000000
--- a/api/logic/trans/TranslationDownloader.cpp
+++ /dev/null
@@ -1,51 +0,0 @@
-#include "TranslationDownloader.h"
-#include "net/NetJob.h"
-#include "net/Download.h"
-#include "net/URLConstants.h"
-#include "Env.h"
-#include <QDebug>
-
-TranslationDownloader::TranslationDownloader()
-{
-}
-void TranslationDownloader::downloadTranslations()
-{
-	qDebug() << "Downloading Translations Index...";
-	m_index_job.reset(new NetJob("Translations Index"));
-	m_index_task = Net::Download::makeByteArray(QUrl("http://files.multimc.org/translations/index"), &m_data);
-	m_index_job->addNetAction(m_index_task);
-	connect(m_index_job.get(), &NetJob::failed, this, &TranslationDownloader::indexFailed);
-	connect(m_index_job.get(), &NetJob::succeeded, this, &TranslationDownloader::indexRecieved);
-	m_index_job->start();
-}
-void TranslationDownloader::indexRecieved()
-{
-	qDebug() << "Got translations index!";
-	m_dl_job.reset(new NetJob("Translations"));
-	QList<QByteArray> lines = m_data.split('\n');
-	m_data.clear();
-	for (const auto line : lines)
-	{
-		if (!line.isEmpty())
-		{
-			MetaEntryPtr entry = ENV.metacache()->resolveEntry("translations", "mmc_" + line);
-			entry->setStale(true);
-			m_dl_job->addNetAction(Net::Download::makeCached(QUrl(URLConstants::TRANSLATIONS_BASE_URL + line), entry));
-		}
-	}
-	connect(m_dl_job.get(), &NetJob::succeeded, this, &TranslationDownloader::dlGood);
-	connect(m_dl_job.get(), &NetJob::failed, this, &TranslationDownloader::dlFailed);
-	m_dl_job->start();
-}
-void TranslationDownloader::dlFailed(QString reason)
-{
-	qCritical() << "Translations Download Failed:" << reason;
-}
-void TranslationDownloader::dlGood()
-{
-	qDebug() << "Got translations!";
-}
-void TranslationDownloader::indexFailed(QString reason)
-{
-	qCritical() << "Translations Index Download Failed:" << reason;
-}
diff --git a/api/logic/trans/TranslationDownloader.h b/api/logic/trans/TranslationDownloader.h
deleted file mode 100644
index ad3a648d..00000000
--- a/api/logic/trans/TranslationDownloader.h
+++ /dev/null
@@ -1,34 +0,0 @@
-#pragma once
-
-#include <QList>
-#include <QUrl>
-#include <memory>
-#include <QObject>
-#include <net/NetJob.h>
-#include "multimc_logic_export.h"
-namespace Net{
-class Download;
-}
-class NetJob;
-
-class MULTIMC_LOGIC_EXPORT TranslationDownloader : public QObject
-{
-	Q_OBJECT
-
-public:
-	TranslationDownloader();
-
-	void downloadTranslations();
-
-private slots:
-	void indexRecieved();
-	void indexFailed(QString reason);
-	void dlFailed(QString reason);
-	void dlGood();
-
-private:
-	std::shared_ptr<Net::Download> m_index_task;
-	NetJobPtr m_dl_job;
-	NetJobPtr m_index_job;
-	QByteArray m_data;
-};
diff --git a/api/logic/translations/TranslationsModel.cpp b/api/logic/translations/TranslationsModel.cpp
new file mode 100644
index 00000000..1d44484a
--- /dev/null
+++ b/api/logic/translations/TranslationsModel.cpp
@@ -0,0 +1,315 @@
+#include "TranslationsModel.h"
+
+#include <QCoreApplication>
+#include <QTranslator>
+#include <QLocale>
+#include <QDir>
+#include <QLibraryInfo>
+#include <QDebug>
+#include <FileSystem.h>
+#include <net/NetJob.h>
+#include <Env.h>
+#include <net/URLConstants.h>
+
+const static QLatin1Literal defaultLangCode("en");
+
+struct Language
+{
+	QString key;
+	QLocale locale;
+	bool updated;
+};
+
+struct TranslationsModel::Private
+{
+	QDir m_dir;
+
+	// initial state is just english
+	QVector<Language> m_languages = {{defaultLangCode, QLocale(defaultLangCode), false}};
+	QString m_selectedLanguage = defaultLangCode;
+	std::unique_ptr<QTranslator> m_qt_translator;
+	std::unique_ptr<QTranslator> m_app_translator;
+
+	std::shared_ptr<Net::Download> m_index_task;
+	QString m_downloadingTranslation;
+	NetJobPtr m_dl_job;
+	NetJobPtr m_index_job;
+	QString m_nextDownload;
+};
+
+TranslationsModel::TranslationsModel(QString path, QObject* parent): QAbstractListModel(parent)
+{
+	d.reset(new Private);
+	d->m_dir.setPath(path);
+	loadLocalIndex();
+}
+
+TranslationsModel::~TranslationsModel()
+{
+}
+
+QVariant TranslationsModel::data(const QModelIndex& index, int role) const
+{
+	if (!index.isValid())
+		return QVariant();
+
+	int row = index.row();
+
+	if (row < 0 || row >= d->m_languages.size())
+		return QVariant();
+
+	switch (role)
+	{
+	case Qt::DisplayRole:
+		return d->m_languages[row].locale.nativeLanguageName();
+	case Qt::UserRole:
+		return d->m_languages[row].key;
+	default:
+		return QVariant();
+	}
+}
+
+int TranslationsModel::rowCount(const QModelIndex& parent) const
+{
+	return d->m_languages.size();
+}
+
+Language * TranslationsModel::findLanguage(const QString& key)
+{
+	auto found = std::find_if(d->m_languages.begin(), d->m_languages.end(), [&](Language & lang)
+	{
+		return lang.key == key;
+	});
+	if(found == d->m_languages.end())
+	{
+		return nullptr;
+	}
+	else
+	{
+		return found;
+	}
+}
+
+bool TranslationsModel::selectLanguage(QString key)
+{
+	QString &langCode = key;
+	auto langPtr = findLanguage(key);
+	if(!langPtr)
+	{
+		qWarning() << "Selected invalid language" << key << ", defaulting to" << defaultLangCode;
+		langCode = defaultLangCode;
+	}
+	else
+	{
+		langCode = langPtr->key;
+	}
+
+	// uninstall existing translators if there are any
+	if (d->m_app_translator)
+	{
+		QCoreApplication::removeTranslator(d->m_app_translator.get());
+		d->m_app_translator.reset();
+	}
+	if (d->m_qt_translator)
+	{
+		QCoreApplication::removeTranslator(d->m_qt_translator.get());
+		d->m_qt_translator.reset();
+	}
+
+	/*
+	 * FIXME: potential source of crashes:
+	 * In a multithreaded application, the default locale should be set at application startup, before any non-GUI threads are created.
+	 * This function is not reentrant.
+	 */
+	QLocale locale(langCode);
+	QLocale::setDefault(locale);
+
+	// if it's the default UI language, finish
+	if(langCode == defaultLangCode)
+	{
+		d->m_selectedLanguage = langCode;
+		return true;
+	}
+
+	// otherwise install new translations
+	bool successful = false;
+	// FIXME: this is likely never present. FIX IT.
+	d->m_qt_translator.reset(new QTranslator());
+	if (d->m_qt_translator->load("qt_" + langCode, QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
+	{
+		qDebug() << "Loading Qt Language File for" << langCode.toLocal8Bit().constData() << "...";
+		if (!QCoreApplication::installTranslator(d->m_qt_translator.get()))
+		{
+			qCritical() << "Loading Qt Language File failed.";
+			d->m_qt_translator.reset();
+		}
+		else
+		{
+			successful = true;
+		}
+	}
+	else
+	{
+		d->m_qt_translator.reset();
+	}
+
+	d->m_app_translator.reset(new QTranslator());
+	if (d->m_app_translator->load("mmc_" + langCode, d->m_dir.path()))
+	{
+		qDebug() << "Loading Application Language File for" << langCode.toLocal8Bit().constData() << "...";
+		if (!QCoreApplication::installTranslator(d->m_app_translator.get()))
+		{
+			qCritical() << "Loading Application Language File failed.";
+			d->m_app_translator.reset();
+		}
+		else
+		{
+			successful = true;
+		}
+	}
+	else
+	{
+		d->m_app_translator.reset();
+	}
+	d->m_selectedLanguage = langCode;
+	return successful;
+}
+
+QModelIndex TranslationsModel::selectedIndex()
+{
+	auto found = findLanguage(d->m_selectedLanguage);
+	if(found)
+	{
+		// QVector iterator freely converts to pointer to contained type
+		return index(found - d->m_languages.begin(), 0, QModelIndex());
+	}
+	return QModelIndex();
+}
+
+QString TranslationsModel::selectedLanguage()
+{
+	return d->m_selectedLanguage;
+}
+
+void TranslationsModel::downloadIndex()
+{
+	qDebug() << "Downloading Translations Index...";
+	d->m_index_job.reset(new NetJob("Translations Index"));
+	MetaEntryPtr entry = ENV.metacache()->resolveEntry("translations", "index");
+	d->m_index_task = Net::Download::makeCached(QUrl("http://files.multimc.org/translations/index"), entry);
+	d->m_index_job->addNetAction(d->m_index_task);
+	connect(d->m_index_job.get(), &NetJob::failed, this, &TranslationsModel::indexFailed);
+	connect(d->m_index_job.get(), &NetJob::succeeded, this, &TranslationsModel::indexRecieved);
+	d->m_index_job->start();
+}
+
+void TranslationsModel::indexRecieved()
+{
+	qDebug() << "Got translations index!";
+	d->m_index_job.reset();
+	loadLocalIndex();
+	if(d->m_selectedLanguage != defaultLangCode)
+	{
+		downloadTranslation(d->m_selectedLanguage);
+	}
+}
+
+void TranslationsModel::loadLocalIndex()
+{
+	QByteArray data;
+	try
+	{
+		data = FS::read(d->m_dir.absoluteFilePath("index"));
+	}
+	catch (Exception &e)
+	{
+		qCritical() << "Translations Download Failed: index file not readable";
+		return;
+	}
+	QVector<Language> languages;
+	QList<QByteArray> lines = data.split('\n');
+	// add the default english.
+	languages.append({defaultLangCode, QLocale(defaultLangCode), true});
+	for (const auto line : lines)
+	{
+		if(!line.isEmpty())
+		{
+			auto str = QString::fromLatin1(line);
+			str.remove(".qm");
+			languages.append({str, QLocale(str), false});
+		}
+	}
+	beginResetModel();
+	d->m_languages.swap(languages);
+	endResetModel();
+}
+
+void TranslationsModel::updateLanguage(QString key)
+{
+	if(key == defaultLangCode)
+	{
+		qWarning() << "Cannot update builtin language" << key;
+		return;
+	}
+	auto found = findLanguage(key);
+	if(!found)
+	{
+		qWarning() << "Cannot update invalid language" << key;
+		return;
+	}
+	if(!found->updated)
+	{
+		downloadTranslation(key);
+	}
+}
+
+void TranslationsModel::downloadTranslation(QString key)
+{
+	if(d->m_dl_job)
+	{
+		d->m_nextDownload = key;
+		return;
+	}
+	d->m_downloadingTranslation = key;
+	MetaEntryPtr entry = ENV.metacache()->resolveEntry("translations", "mmc_" + key + ".qm");
+	entry->setStale(true);
+	d->m_dl_job.reset(new NetJob("Translation for " + key));
+	d->m_dl_job->addNetAction(Net::Download::makeCached(QUrl(URLConstants::TRANSLATIONS_BASE_URL + key + ".qm"), entry));
+	connect(d->m_dl_job.get(), &NetJob::succeeded, this, &TranslationsModel::dlGood);
+	connect(d->m_dl_job.get(), &NetJob::failed, this, &TranslationsModel::dlFailed);
+	d->m_dl_job->start();
+}
+
+void TranslationsModel::downloadNext()
+{
+	if(!d->m_nextDownload.isEmpty())
+	{
+		downloadTranslation(d->m_nextDownload);
+		d->m_nextDownload.clear();
+	}
+}
+
+void TranslationsModel::dlFailed(QString reason)
+{
+	qCritical() << "Translations Download Failed:" << reason;
+	d->m_dl_job.reset();
+	downloadNext();
+}
+
+void TranslationsModel::dlGood()
+{
+	qDebug() << "Got translation:" << d->m_downloadingTranslation;
+
+	if(d->m_downloadingTranslation == d->m_selectedLanguage)
+	{
+		selectLanguage(d->m_selectedLanguage);
+	}
+	d->m_dl_job.reset();
+	downloadNext();
+}
+
+void TranslationsModel::indexFailed(QString reason)
+{
+	qCritical() << "Translations Index Download Failed:" << reason;
+	d->m_index_job.reset();
+}
diff --git a/api/logic/translations/TranslationsModel.h b/api/logic/translations/TranslationsModel.h
new file mode 100644
index 00000000..90184b79
--- /dev/null
+++ b/api/logic/translations/TranslationsModel.h
@@ -0,0 +1,61 @@
+/* Copyright 2013-2016 MultiMC Contributors
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include <QAbstractListModel>
+#include <memory>
+#include "multimc_logic_export.h"
+
+struct Language;
+
+class MULTIMC_LOGIC_EXPORT TranslationsModel : public QAbstractListModel
+{
+	Q_OBJECT
+public:
+	explicit TranslationsModel(QString path, QObject *parent = 0);
+	virtual ~TranslationsModel();
+
+	virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+	virtual int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+
+	bool selectLanguage(QString key);
+	void updateLanguage(QString key);
+	QModelIndex selectedIndex();
+	QString selectedLanguage();
+
+	void downloadIndex();
+
+private:
+	Language *findLanguage(const QString & key);
+	void loadLocalIndex();
+	void downloadTranslation(QString key);
+	void downloadNext();
+
+	// hide copy constructor
+	TranslationsModel(const TranslationsModel &) = delete;
+	// hide assign op
+	TranslationsModel &operator=(const TranslationsModel &) = delete;
+
+private slots:
+	void indexRecieved();
+	void indexFailed(QString reason);
+	void dlFailed(QString reason);
+	void dlGood();
+
+private: /* data */
+	struct Private;
+	std::unique_ptr<Private> d;
+};
diff --git a/application/CMakeLists.txt b/application/CMakeLists.txt
index 2198e815..e51e6eb1 100644
--- a/application/CMakeLists.txt
+++ b/application/CMakeLists.txt
@@ -302,9 +302,6 @@ SET(MULTIMC_UIS
 
 	# Widgets/other
 	widgets/MCModInfoFrame.ui
-
-	# The Setup Wizard
-	setupwizard/SetupWizard.ui
 )
 
 set(MULTIMC_QRCS
diff --git a/application/MainWindow.cpp b/application/MainWindow.cpp
index 094eecd7..3bbe7eec 100644
--- a/application/MainWindow.cpp
+++ b/application/MainWindow.cpp
@@ -1429,6 +1429,15 @@ void MainWindow::closeEvent(QCloseEvent *event)
 	QApplication::exit();
 }
 
+void MainWindow::changeEvent(QEvent* event)
+{
+	if (event->type() == QEvent::LanguageChange)
+	{
+		ui->retranslateUi(this);
+	}
+	QMainWindow::changeEvent(event);
+}
+
 void MainWindow::instanceActivated(QModelIndex index)
 {
 	if (!index.isValid())
@@ -1552,76 +1561,6 @@ void MainWindow::selectionBad()
 	setSelectedInstanceById(MMC->settings()->get("SelectedInstance").toString());
 }
 
-void MainWindow::checkSetDefaultJava()
-{
-	const QString javaHack = "IntelHack";
-	bool askForJava = false;
-	do
-	{
-		QString currentHostName = QHostInfo::localHostName();
-		QString oldHostName = MMC->settings()->get("LastHostname").toString();
-		if (currentHostName != oldHostName)
-		{
-			MMC->settings()->set("LastHostname", currentHostName);
-			askForJava = true;
-			break;
-		}
-		QString currentJavaPath = MMC->settings()->get("JavaPath").toString();
-		QString actualPath = FS::ResolveExecutable(currentJavaPath);
-		if (currentJavaPath.isNull())
-		{
-			askForJava = true;
-			break;
-		}
-#if defined Q_OS_WIN32
-		QString currentHack = MMC->settings()->get("JavaDetectionHack").toString();
-		if (currentHack != javaHack)
-		{
-			CustomMessageBox::selectable(this, tr("Java detection forced"), tr("Because of graphics performance issues caused by Intel drivers on Windows, "
-																			   "MultiMC java detection was forced. Please select a Java "
-																			   "version.<br/><br/>If you have custom java versions set for your instances, "
-																			   "make sure you use the 'javaw.exe' executable."),
-										 QMessageBox::Warning)
-				->exec();
-			askForJava = true;
-			break;
-		}
-#endif
-	} while (0);
-
-	if (askForJava)
-	{
-		qDebug() << "Java path needs resetting, showing Java selection dialog...";
-
-		JavaInstallPtr java;
-
-		VersionSelectDialog vselect(MMC->javalist().get(), tr("Select a Java version"), this, false);
-		vselect.setResizeOn(2);
-		vselect.exec();
-
-		if (vselect.selectedVersion())
-			java = std::dynamic_pointer_cast<JavaInstall>(vselect.selectedVersion());
-		else
-		{
-			CustomMessageBox::selectable(this, tr("Invalid version selected"), tr("You didn't select a valid Java version, so MultiMC will "
-																				  "select the default. "
-																				  "You can change this in the settings dialog."),
-										 QMessageBox::Warning)
-				->show();
-
-			JavaUtils ju;
-			java = ju.GetDefaultJava();
-		}
-		if (java)
-		{
-			MMC->settings()->set("JavaPath", java->path);
-			MMC->settings()->set("JavaDetectionHack", javaHack);
-		}
-		else
-			MMC->settings()->set("JavaPath", QString("java"));
-	}
-}
-
 void MainWindow::checkInstancePathForProblems()
 {
 	QString instanceFolder = MMC->settings()->get("InstanceDir").toString();
diff --git a/application/MainWindow.h b/application/MainWindow.h
index 459c17c2..535d1163 100644
--- a/application/MainWindow.h
+++ b/application/MainWindow.h
@@ -48,10 +48,10 @@ public:
 	explicit MainWindow(QWidget *parent = 0);
 	~MainWindow();
 
-	virtual bool eventFilter(QObject *obj, QEvent *ev) override;
-	virtual void closeEvent(QCloseEvent *event) override;
+	bool eventFilter(QObject *obj, QEvent *ev) override;
+	void closeEvent(QCloseEvent *event) override;
+	void changeEvent(QEvent * event) override;
 
-	void checkSetDefaultJava();
 	void checkInstancePathForProblems();
 
 private slots:
diff --git a/application/MultiMC.cpp b/application/MultiMC.cpp
index f176a64b..346c1882 100644
--- a/application/MultiMC.cpp
+++ b/application/MultiMC.cpp
@@ -58,7 +58,7 @@
 #include "settings/INISettingsObject.h"
 #include "settings/Setting.h"
 
-#include "trans/TranslationDownloader.h"
+#include "translations/TranslationsModel.h"
 
 #include "minecraft/ftb/FTBPlugin.h"
 
@@ -289,8 +289,6 @@ MultiMC::MultiMC(int &argc, char **argv) : QApplication(argc, argv)
 		m_updateChecker.reset(new UpdateChecker(BuildConfig.CHANLIST_URL, BuildConfig.VERSION_CHANNEL, BuildConfig.VERSION_BUILD));
 	}
 
-	m_translationChecker.reset(new TranslationDownloader());
-
 	initIcons();
 	initThemes();
 	// make sure we have at least some minecraft versions before we init instances
@@ -299,7 +297,8 @@ MultiMC::MultiMC(int &argc, char **argv) : QApplication(argc, argv)
 	initAccounts();
 	initNetwork();
 
-	m_translationChecker->downloadTranslations();
+	// now we have network, download translation updates
+	m_translations->downloadIndex();
 
 	//FIXME: what to do with these?
 	m_profilers.insert("jprofiler", std::shared_ptr<BaseProfilerFactory>(new JProfilerFactory()));
@@ -347,14 +346,6 @@ MultiMC::MultiMC(int &argc, char **argv) : QApplication(argc, argv)
 
 MultiMC::~MultiMC()
 {
-	if (m_mmc_translator)
-	{
-		removeTranslator(m_mmc_translator.get());
-	}
-	if (m_qt_translator)
-	{
-		removeTranslator(m_qt_translator.get());
-	}
 #if defined Q_OS_WIN32
 	if(consoleAttached)
 	{
@@ -415,43 +406,10 @@ void MultiMC::initNetwork()
 
 void MultiMC::initTranslations()
 {
+	m_translations.reset(new TranslationsModel("translations"));
 	auto bcp47Name = m_settings->get("Language").toString();
-	QLocale locale(bcp47Name);
-	QLocale::setDefault(locale);
+	m_translations->selectLanguage(bcp47Name);
 	qDebug() << "Your language is" << bcp47Name;
-	// FIXME: this is likely never present.
-	m_qt_translator.reset(new QTranslator());
-	if (m_qt_translator->load("qt_" + bcp47Name,
-							  QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
-	{
-		qDebug() << "Loading Qt Language File for"
-					 << bcp47Name.toLocal8Bit().constData() << "...";
-		if (!installTranslator(m_qt_translator.get()))
-		{
-			qCritical() << "Loading Qt Language File failed.";
-			m_qt_translator.reset();
-		}
-	}
-	else
-	{
-		m_qt_translator.reset();
-	}
-
-	m_mmc_translator.reset(new QTranslator());
-	if (m_mmc_translator->load("mmc_" + bcp47Name, FS::PathCombine(QDir::currentPath(), "translations")))
-	{
-		qDebug() << "Loading MMC Language File for"
-					 << bcp47Name.toLocal8Bit().constData() << "...";
-		if (!installTranslator(m_mmc_translator.get()))
-		{
-			qCritical() << "Loading MMC Language File failed.";
-			m_mmc_translator.reset();
-		}
-	}
-	else
-	{
-		m_mmc_translator.reset();
-	}
 }
 
 void MultiMC::initIcons()
@@ -520,6 +478,7 @@ void MultiMC::shutdownLogger()
 
 void MultiMC::initAnalytics()
 {
+	const int analyticsVersion = 1;
 	if(BuildConfig.ANALYTICS_ID.isEmpty())
 	{
 		return;
@@ -535,11 +494,16 @@ void MultiMC::initAnalytics()
 		clientID.remove(QLatin1Char('}'));
 		m_settings->set("AnalyticsClientID", clientID);
 	}
-	m_analytics = new GAnalytics(BuildConfig.ANALYTICS_ID, clientID, this);
+	m_analytics = new GAnalytics(BuildConfig.ANALYTICS_ID, clientID, analyticsVersion, this);
 	m_analytics->setLogLevel(GAnalytics::Debug);
 	m_analytics->setAnonymizeIPs(true);
 	m_analytics->setNetworkAccessManager(&ENV.qnam());
 
+	if(m_settings->get("AnalyticsSeen").toInt() < m_analytics->version())
+	{
+		qDebug() << "Analytics info not seen by user yet (or old version).";
+		return;
+	}
 	if(!m_settings->get("Analytics").toBool())
 	{
 		qDebug() << "Analytics disabled by user.";
@@ -659,7 +623,7 @@ void MultiMC::initGlobalSettings()
 	m_settings->registerSetting("JsonEditor", QString());
 
 	// Language
-	m_settings->registerSetting("Language", QLocale(QLocale::system().language()).bcp47Name());
+	m_settings->registerSetting("Language", QString());
 
 	// Console
 	m_settings->registerSetting("ShowConsole", false);
@@ -695,7 +659,6 @@ void MultiMC::initGlobalSettings()
 	m_settings->registerSetting("JavaArchitecture", "");
 	m_settings->registerSetting("JavaVersion", "");
 	m_settings->registerSetting("LastHostname", "");
-	m_settings->registerSetting("JavaDetectionHack", "");
 	m_settings->registerSetting("JvmArgs", "");
 
 	// Minecraft launch method
@@ -735,6 +698,7 @@ void MultiMC::initGlobalSettings()
 	{
 		// Analytics
 		m_settings->registerSetting("Analytics", true);
+		m_settings->registerSetting("AnalyticsSeen", 0);
 		m_settings->registerSetting("AnalyticsClientID", QString());
 	}
 
@@ -756,6 +720,11 @@ void MultiMC::initMCEdit()
 	m_mcedit.reset(new MCEditTool(m_settings));
 }
 
+std::shared_ptr<TranslationsModel> MultiMC::translations()
+{
+	return m_translations;
+}
+
 std::shared_ptr<LWJGLVersionList> MultiMC::lwjgllist()
 {
 	if (!m_lwjgllist)
@@ -1013,7 +982,6 @@ MainWindow* MultiMC::showMainWindow(bool minimized)
 			m_mainWindow->show();
 		}
 
-		m_mainWindow->checkSetDefaultJava();
 		m_mainWindow->checkInstancePathForProblems();
 		m_openWindows++;
 	}
diff --git a/application/MultiMC.h b/application/MultiMC.h
index f166a30a..50074136 100644
--- a/application/MultiMC.h
+++ b/application/MultiMC.h
@@ -32,7 +32,7 @@ class JavaInstallList;
 class UpdateChecker;
 class BaseProfilerFactory;
 class BaseDetachedToolFactory;
-class TranslationDownloader;
+class TranslationsModel;
 class ITheme;
 class MCEditTool;
 class GAnalytics;
@@ -58,6 +58,11 @@ public:
 	MultiMC(int &argc, char **argv);
 	virtual ~MultiMC();
 
+	GAnalytics *analytics() const
+	{
+		return m_analytics;
+	}
+
 	std::shared_ptr<SettingsObject> settings() const
 	{
 		return m_settings;
@@ -87,6 +92,7 @@ public:
 		return m_updateChecker;
 	}
 
+	std::shared_ptr<TranslationsModel> translations();
 	std::shared_ptr<MinecraftVersionList> minecraftlist();
 	std::shared_ptr<LWJGLVersionList> lwjgllist();
 	std::shared_ptr<ForgeVersionList> forgelist();
@@ -183,8 +189,6 @@ private:
 private:
 	QDateTime startTime;
 
-	std::shared_ptr<QTranslator> m_qt_translator;
-	std::shared_ptr<QTranslator> m_mmc_translator;
 	std::shared_ptr<SettingsObject> m_settings;
 	std::shared_ptr<InstanceList> m_instances;
 	FolderInstanceProvider * m_instanceFolder = nullptr;
@@ -196,7 +200,7 @@ private:
 	std::shared_ptr<LiteLoaderVersionList> m_liteloaderlist;
 	std::shared_ptr<MinecraftVersionList> m_minecraftlist;
 	std::shared_ptr<JavaInstallList> m_javalist;
-	std::shared_ptr<TranslationDownloader> m_translationChecker;
+	std::shared_ptr<TranslationsModel> m_translations;
 	std::shared_ptr<GenericPageProvider> m_globalSettingsProvider;
 	std::map<QString, std::unique_ptr<ITheme>> m_themes;
 	std::unique_ptr<MCEditTool> m_mcedit;
diff --git a/application/setupwizard/SetupWizard.cpp b/application/setupwizard/SetupWizard.cpp
index b51b34a7..af6b8c8e 100644
--- a/application/setupwizard/SetupWizard.cpp
+++ b/application/setupwizard/SetupWizard.cpp
@@ -1,26 +1,273 @@
 #include "SetupWizard.h"
+#include "translations/TranslationsModel.h"
+#include <MultiMC.h>
+#include <FileSystem.h>
+#include <ganalytics.h>
 
 enum Page
 {
 	Language,
 	Java,
 	Analytics,
-	Themes,
-	Accounts
+	// Themes,
+	// Accounts
 };
-#include "ui_SetupWizard.h"
 
+#include <QtCore/QVariant>
+#include <QtWidgets/QAction>
+#include <QtWidgets/QApplication>
+#include <QtWidgets/QButtonGroup>
+#include <QtWidgets/QCheckBox>
+#include <QtWidgets/QHeaderView>
+#include <QtWidgets/QListView>
+#include <QtWidgets/QTextBrowser>
+#include <QtWidgets/QVBoxLayout>
+#include <QtWidgets/QWizard>
+#include <QtWidgets/QWizardPage>
 
-SetupWizard::SetupWizard(QWidget *parent):QWizard(parent), ui(new Ui::SetupWizard)
+class BaseWizardPage : public QWizardPage
 {
-	ui->setupUi(this);
+public:
+	explicit BaseWizardPage(QWidget *parent = Q_NULLPTR)
+		: QWizardPage(parent)
+	{
+	}
+	virtual ~BaseWizardPage() {};
+
+protected:
+	virtual void retranslate() = 0;
+	void changeEvent(QEvent * event) override
+	{
+		if (event->type() == QEvent::LanguageChange)
+		{
+			retranslate();
+		}
+		QWizardPage::changeEvent(event);
+	}
+};
+
+class LanguageWizardPage : public BaseWizardPage
+{
+	Q_OBJECT;
+public:
+	explicit LanguageWizardPage(QWidget *parent = Q_NULLPTR)
+		: BaseWizardPage(parent)
+	{
+		setObjectName(QStringLiteral("languagePage"));
+		verticalLayout = new QVBoxLayout(this);
+		verticalLayout->setObjectName(QStringLiteral("verticalLayout"));
+		languageView = new QListView(this);
+		languageView->setObjectName(QStringLiteral("languageView"));
+		verticalLayout->addWidget(languageView);
+		retranslate();
+
+		auto translations = MMC->translations();
+		auto index = translations->selectedIndex();
+		languageView->setModel(translations.get());
+		languageView->setCurrentIndex(index);
+		connect(languageView->selectionModel(), &QItemSelectionModel::currentRowChanged, this, &LanguageWizardPage::languageRowChanged);
+	}
+	virtual ~LanguageWizardPage() {};
+
+protected:
+	void retranslate() override
+	{
+		setTitle(QApplication::translate("LanguageWizardPage", "Language", Q_NULLPTR));
+		setSubTitle(QApplication::translate("LanguageWizardPage", "Select the language to use in MultiMC", Q_NULLPTR));
+	}
+
+protected slots:
+	void languageRowChanged(const QModelIndex &current, const QModelIndex &previous)
+	{
+		if (current == previous)
+		{
+			return;
+		}
+		auto translations = MMC->translations();
+		QString key = translations->data(current, Qt::UserRole).toString();
+		translations->selectLanguage(key);
+		translations->updateLanguage(key);
+	}
+
+private:
+	QVBoxLayout *verticalLayout = nullptr;
+	QListView *languageView = nullptr;
+};
+
+class AnalyticsWizardPage : public BaseWizardPage
+{
+	Q_OBJECT;
+public:
+	explicit AnalyticsWizardPage(QWidget *parent = Q_NULLPTR)
+		: BaseWizardPage(parent)
+	{
+		setObjectName(QStringLiteral("analyticsPage"));
+		verticalLayout_3 = new QVBoxLayout(this);
+		verticalLayout_3->setObjectName(QStringLiteral("verticalLayout_3"));
+		textBrowser = new QTextBrowser(this);
+		textBrowser->setObjectName(QStringLiteral("textBrowser"));
+		textBrowser->setAcceptRichText(false);
+		textBrowser->setOpenExternalLinks(true);
+		verticalLayout_3->addWidget(textBrowser);
+
+		checkBox = new QCheckBox(this);
+		checkBox->setObjectName(QStringLiteral("checkBox"));
+		checkBox->setChecked(true);
+		verticalLayout_3->addWidget(checkBox);
+		retranslate();
+	}
+	virtual ~AnalyticsWizardPage() {};
+
+protected:
+	void retranslate() override
+	{
+		setTitle(QApplication::translate("AnalyticsWizardPage", "Analytics", Q_NULLPTR));
+		setSubTitle(QApplication::translate("AnalyticsWizardPage", "We track some anonymous statistics about users.", Q_NULLPTR));
+		textBrowser->setHtml(QApplication::translate("AnalyticsWizardPage",
+			"<html><body>"
+			"<p>MultiMC sends anonymous usage statistics on every start of the application. This helps us decide what platforms and issues to focus on.</p>"
+			"<p>The data is processed by Google Analytics, see their <a href=\"https://support.google.com/analytics/answer/6004245?hl=en\">article on the matter</a>.</p>"
+			"<p>The following data is collected:</p>"
+			"<ul><li>A random unique ID of the MultiMC installation.<br />It is stored in the application settings (multimc.cfg).</li>"
+			"<li>Anonymized IP address.<br />Last octet is set to 0 by Google and not stored.</li>"
+			"<li>MultiMC version.</li>"
+			"<li>Operating system name, version and architecture.</li>"
+			"<li>CPU architecture (kernel architecture on linux).</li>"
+			"<li>Size of system memory.</li>"
+			"<li>Java version, architecture and memory settings.</li></ul>"
+			"<