/******************************************************************************
    Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/

#pragma once

#include <QApplication>
#include <QMessageBox>
#include <QWidget>
#include <QWindow>
#include <QThread>
#include <obs.hpp>

#include <functional>
#include <memory>
#include <vector>

#define QT_UTF8(str) QString::fromUtf8(str, -1)
#define QT_TO_UTF8(str) str.toUtf8().constData()
#define MAX_LABEL_LENGTH 80

class QDataStream;
class QComboBox;
class QWidget;
class QLayout;
class QString;
struct gs_window;
class QLabel;

class OBSMessageBox {
public:
	static QMessageBox::StandardButton
	question(QWidget *parent, const QString &title, const QString &text,
		 QMessageBox::StandardButtons buttons =
			 QMessageBox::StandardButtons(QMessageBox::Yes |
						      QMessageBox::No),
		 QMessageBox::StandardButton defaultButton =
			 QMessageBox::NoButton);
	static void information(QWidget *parent, const QString &title,
				const QString &text);
	static void warning(QWidget *parent, const QString &title,
			    const QString &text, bool enableRichText = false);
	static void critical(QWidget *parent, const QString &title,
			     const QString &text);
};

void OBSErrorBox(QWidget *parent, const char *msg, ...);

bool QTToGSWindow(QWindow *window, gs_window &gswindow);

uint32_t TranslateQtKeyboardEventModifiers(Qt::KeyboardModifiers mods);

QDataStream &
operator<<(QDataStream &out,
	   const std::vector<std::shared_ptr<OBSSignal>> &signal_vec);
QDataStream &operator>>(QDataStream &in,
			std::vector<std::shared_ptr<OBSSignal>> &signal_vec);
QDataStream &operator<<(QDataStream &out, const OBSScene &scene);
QDataStream &operator>>(QDataStream &in, OBSScene &scene);

QThread *CreateQThread(std::function<void()> func);

void ExecuteFuncSafeBlock(std::function<void()> func);
void ExecuteFuncSafeBlockMsgBox(std::function<void()> func,
				const QString &title, const QString &text);

/* allows executing without message boxes if starting up, otherwise with a
 * message box */
void EnableThreadedMessageBoxes(bool enable);
void ExecThreadedWithoutBlocking(std::function<void()> func,
				 const QString &title, const QString &text);

class SignalBlocker {
	QWidget *widget;
	bool blocked;

public:
	inline explicit SignalBlocker(QWidget *widget_) : widget(widget_)
	{
		blocked = widget->blockSignals(true);
	}

	inline ~SignalBlocker() { widget->blockSignals(blocked); }
};

void DeleteLayout(QLayout *layout);

static inline Qt::ConnectionType WaitConnection()
{
	return QThread::currentThread() == qApp->thread()
		       ? Qt::DirectConnection
		       : Qt::BlockingQueuedConnection;
}

bool LineEditCanceled(QEvent *event);
bool LineEditChanged(QEvent *event);

void SetComboItemEnabled(QComboBox *c, int idx, bool enabled);

void setThemeID(QWidget *widget, const QString &themeID);

QString SelectDirectory(QWidget *parent, QString title, QString path);
QString SaveFile(QWidget *parent, QString title, QString path,
		 QString extensions);
QString OpenFile(QWidget *parent, QString title, QString path,
		 QString extensions);
QStringList OpenFiles(QWidget *parent, QString title, QString path,
		      QString extensions);

void TruncateLabel(QLabel *label, QString newText,
		   int length = MAX_LABEL_LENGTH);