thermostat: save automatically holiday end date

soft/thermostat/inc/settings.h

@@ -57,12 +57,12 @@ public:
 	static Settings *getInstance(void);
 	int nbZones(void);
 	enum power_states getPowerState(void) { return m_state; }
-
 	void setPowerState(enum power_states state);
+	const QDateTime &getEndHoliday(void) { return m_end_holiday; }
+	void setEndHoliday(const QDateTime &endDate);
 
 	QVector<struct Room> m_rooms;
 	struct Brocker m_broker;
-	QDateTime m_end_holiday;
 
 private:
 	explicit Settings(QObject *parent = Q_NULLPTR);
@@ -73,6 +73,7 @@ private:
 	int read_config(void);
 
 	enum power_states m_state;
+	QDateTime m_end_holiday;
 };
 
 #endif // SETTINGS_H

soft/thermostat/src/mainwindow.cpp

@@ -207,7 +207,7 @@ void MainWindow::set_holiday_mode(QDateTime end_date)
 {
 	Settings *s = Settings::getInstance();
 
-	s->m_end_holiday = end_date;
+	s->setEndHoliday(end_date);
 	apply_order_to_heaters();
 }
 
@@ -430,7 +430,7 @@ void MainWindow::apply_order_to_heaters(void)
 	Settings *s = Settings::getInstance();
 	bool heating_order = false;
 
-	if (s->m_end_holiday > QDateTime::currentDateTime()) {
+	if (s->getEndHoliday() > QDateTime::currentDateTime()) {
 		qDebug() << "Holiday mode => emit ALL_OFF order";
 		emit setAllHeatersOn(false);
 	} else {

soft/thermostat/src/settings.cpp

@@ -138,6 +138,15 @@ void Settings::setPowerState(enum power_states state)
 	}
 }
 
+void Settings::setEndHoliday(const QDateTime &endDate)
+{
+	if (endDate.isValid()) {
+		m_end_holiday = endDate;
+		this->setValue("end_holiday", m_end_holiday.toString(Qt::ISODate));
+	}
+	/* else TODO: error */
+}
+
 void Settings::set_rooms_default_config(void)
 {
 	this->setValue("state", "auto");

soft/thermostat/src/zoneitem.cpp

@@ -81,7 +81,7 @@ void ZoneItem::refresh(void)
 		break;
 	}
 
-	if (s->m_end_holiday > QDateTime::currentDateTime()) {
+	if (s->getEndHoliday() > QDateTime::currentDateTime()) {
 		m_target_temperature = FORCE_OFF;
 	}