// SPDX-FileCopyrightText: 2002-2023 PCSX2 Dev Team
// SPDX-License-Identifier: LGPL-3.0+

#pragma once
#include "common/ProgressCallback.h"
#include "common/Timer.h"
#include <QtCore/QThread>
#include <QtCore/QSemaphore>
#include <QtWidgets/QProgressDialog>
#include <atomic>

class QtModalProgressCallback final : public QObject, public BaseProgressCallback
{
	Q_OBJECT

public:
	QtModalProgressCallback(QWidget* parent_widget, float show_delay = 0.0f);
	~QtModalProgressCallback();

	QProgressDialog& GetDialog() { return m_dialog; }

	void SetCancellable(bool cancellable) override;
	void SetTitle(const char* title) override;
	void SetStatusText(const char* text) override;
	void SetProgressRange(u32 range) override;
	void SetProgressValue(u32 value) override;

	void DisplayError(const char* message) override;
	void DisplayWarning(const char* message) override;
	void DisplayInformation(const char* message) override;
	void DisplayDebugMessage(const char* message) override;

	void ModalError(const char* message) override;
	bool ModalConfirmation(const char* message) override;
	void ModalInformation(const char* message) override;

private Q_SLOTS:
	void dialogCancelled();

private:
	void checkForDelayedShow();

	QProgressDialog m_dialog;
	Common::Timer m_show_timer;
	float m_show_delay;
};

class QtAsyncProgressThread : public QThread, public BaseProgressCallback
{
	Q_OBJECT

public:
	QtAsyncProgressThread(QWidget* parent);
	~QtAsyncProgressThread();

	bool IsCancelled() const override;

	void SetCancellable(bool cancellable) override;
	void SetTitle(const char* title) override;
	void SetStatusText(const char* text) override;
	void SetProgressRange(u32 range) override;
	void SetProgressValue(u32 value) override;

	void DisplayError(const char* message) override;
	void DisplayWarning(const char* message) override;
	void DisplayInformation(const char* message) override;
	void DisplayDebugMessage(const char* message) override;

	void ModalError(const char* message) override;
	bool ModalConfirmation(const char* message) override;
	void ModalInformation(const char* message) override;

Q_SIGNALS:
	void titleUpdated(const QString& title);
	void statusUpdated(const QString& status);
	void progressUpdated(int value, int range);
	void threadStarting();
	void threadFinished();

public Q_SLOTS:
	void start();
	void join();

protected:
	virtual void runAsync() = 0;
	void run() final;

private:
	QWidget* parentWidget() const;

	QSemaphore m_start_semaphore;
	QThread* m_starting_thread = nullptr;
};