#pragma once

#include "tickingservice.hpp"

#include <qqmlintegration.h>
#include <qvariant.h>

namespace ZShell::services {

class Memory : public TickingService {
	Q_OBJECT
	QML_ELEMENT
	QML_SINGLETON

	Q_PROPERTY(qreal used READ used NOTIFY changed)
	Q_PROPERTY(qreal total READ total NOTIFY changed)
	Q_PROPERTY(qreal cached READ cached NOTIFY changed)
	Q_PROPERTY(qreal percentage READ percentage NOTIFY changed)
	Q_PROPERTY(qreal readTotal READ readTotal NOTIFY changed)
	Q_PROPERTY(qreal writeTotal READ writeTotal NOTIFY changed)

	public:
	explicit Memory(QObject* parent = nullptr);

	[[nodiscard]] qreal used() const;
	[[nodiscard]] qreal total() const;
	[[nodiscard]] qreal cached() const;
	[[nodiscard]] qreal percentage() const;
	[[nodiscard]] qreal readTotal() const;
	[[nodiscard]] qreal writeTotal() const;

	signals:
	void changed();

	protected:
	void tick() override;

	private:
	qreal m_used = 0.0;
	qreal m_total = 1.0;
	qreal m_cached = 0.0;
	qreal m_readTotal = 0.0;
	qreal m_writeTotal = 0.0;
	quint64 m_lastUsed = 0;
	quint64 m_lastTotal = 0;
	quint64 m_lastCached = 0;
	quint64 m_lastReadKib = 0;
	quint64 m_lastWriteKib = 0;
};

} // namespace ZShell::services