/* Copyright 2013-2018 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 <memory>

#include <QMainWindow>
#include <QProcess>
#include <QTimer>

#include "BaseInstance.h"
#include "minecraft/auth/MojangAccount.h"
#include "net/NetJob.h"
#include "updater/GoUpdate.h"

class LaunchController;
class NewsChecker;
class NotificationChecker;
class QToolButton;
class InstanceProxyModel;
class LabeledToolButton;
class QLabel;
class MinecraftLauncher;
class BaseProfilerFactory;
class GroupView;
class ServerStatus;
class KonamiCode;
class InstanceTask;

class MainWindow : public QMainWindow
{
	Q_OBJECT

	class Ui;

public:
	explicit MainWindow(QWidget *parent = 0);
	~MainWindow();

	bool eventFilter(QObject *obj, QEvent *ev) override;
	void closeEvent(QCloseEvent *event) override;
	void changeEvent(QEvent * event) override;

	void checkInstancePathForProblems();

	void updatesAllowedChanged(bool allowed);
signals:
	void isClosing();

private slots:
	void onCatToggled(bool);

	void on_actionAbout_triggered();

	void on_actionAddInstance_triggered();

	void on_actionREDDIT_triggered();

	void on_actionDISCORD_triggered();

	void on_actionCopyInstance_triggered();

	void on_actionChangeInstGroup_triggered();

	void on_actionChangeInstIcon_triggered();
	void on_changeIconButton_clicked(bool)
	{
		on_actionChangeInstIcon_triggered();
	}

	void on_actionViewInstanceFolder_triggered();

	void on_actionConfig_Folder_triggered();

	void on_actionViewSelectedInstFolder_triggered();

	void refreshInstances();

	void on_actionViewCentralModsFolder_triggered();

	void checkForUpdates();

	void on_actionSettings_triggered();

	void on_actionInstanceSettings_triggered();

	void on_actionManageAccounts_triggered();

	void on_actionReportBug_triggered();

	void on_actionPatreon_triggered();

	void on_actionMoreNews_triggered();

	void newsButtonClicked();

	void on_mainToolBar_visibilityChanged(bool);

	void on_actionLaunchInstance_triggered();

	void on_actionLaunchInstanceOffline_triggered();

	void on_actionDeleteInstance_triggered();

	void deleteGroup();

	void on_actionExportInstance_triggered();

	void on_actionRenameInstance_triggered();
	void on_renameButton_clicked(bool)
	{
		on_actionRenameInstance_triggered();
	}

	void on_actionEditInstance_triggered();

	void on_actionEditInstNotes_triggered();

	void on_actionWorlds_triggered();

	void on_actionScreenshots_triggered();

	void taskEnd();

	/**
	 * called when an icon is changed in the icon model.
	 */
	void iconUpdated(QString);

	void showInstanceContextMenu(const QPoint &);

	void updateToolsMenu();

	void skinJobFinished();

	void instanceActivated(QModelIndex);

	void instanceChanged(const QModelIndex &current, const QModelIndex &previous);

	void instanceDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);

	void selectionBad();

	void startTask(Task *task);

	void updateAvailable(GoUpdate::Status status);

	void updateNotAvailable();

	void notificationsChanged();

	void activeAccountChanged();

	void changeActiveAccount();

	void repopulateAccountsMenu();

	void updateNewsLabel();

	/*!
	 * Runs the DownloadTask and installs updates.
	 */
	void downloadUpdates(GoUpdate::Status status);

	void droppedURLs(QList<QUrl> urls);

	void konamiTriggered();

private:
	void addInstance(QString url = QString());
	void activateInstance(InstancePtr instance);
	void setCatBackground(bool enabled);
	void updateInstanceToolIcon(QString new_icon);
	void setSelectedInstanceById(const QString &id);

	void runModalTask(Task *task);
	void instanceFromInstanceTask(InstanceTask *task);
	void finalizeInstance(InstancePtr inst);

private:
	std::unique_ptr<Ui> ui;

	// these are managed by Qt's memory management model!
	GroupView *view = nullptr;
	InstanceProxyModel *proxymodel = nullptr;
	QToolButton *newsLabel = nullptr;
	QLabel *m_statusLeft = nullptr;
	ServerStatus *m_statusRight = nullptr;
	QMenu *accountMenu = nullptr;
	QToolButton *accountMenuButton = nullptr;
	KonamiCode * secretEventFilter = nullptr;

	unique_qobject_ptr<NetJob> skin_download_job;
	unique_qobject_ptr<NewsChecker> m_newsChecker;
	unique_qobject_ptr<NotificationChecker> m_notificationChecker;

	InstancePtr m_selectedInstance;
	QString m_currentInstIcon;

	// managed by the application object
	Task *m_versionLoadTask = nullptr;
};