app/headers/buzzerconn.h

#ifndef BUZZERCONN_H
#define BUZZERCONN_H

#include <QObject>
#include <QObject>
#include <QDir>
#include <QUrl>
#include <QtNetwork>
#include <QAuthenticator>
#include <QDesktopServices>
#include <QDateTime>

typedef struct strReturnData{
    int status_code;
    QString text;
}ReturnData_t;

class BuzzerConn : public QObject
{
    Q_OBJECT
public:
    explicit BuzzerConn(QObject *parent = nullptr);
    double offset;
    QList<double> latest_offsets;
    double latest_button_pressed;
    double starttime;
    bool connected;
    int connection_progress;


private:
    QNetworkAccessManager *networkManager;
    QNetworkAccessManager *reloadNetworkManager;
    QDateTime *date;

signals:

public slots:
    ReturnData_t senddata(QNetworkAccessManager * NetMan, QUrl serviceUrl, int timeout);
        //function to communicate with the buzzer
    Q_INVOKABLE QList<double> gettimes(int timeout);
        //function to get the times from the buzzer as a list with the normal network manager
    Q_INVOKABLE bool connect();
        //function to connect to buzzer
    Q_INVOKABLE bool calcoffset(QList<double> times);
        //function that calculates the average time offset between the buzzer and the device
    Q_INVOKABLE bool buzzer_triggered();
        //function that checks ih the buzzer has been pushed since the last call of this function
    Q_INVOKABLE bool start();
        //syncs the buzzer and the base to make a start possible
    Q_INVOKABLE double get(QString key);
        //can return some things (offset, lastpressed, currtime, connection_progress, connected)
    Q_INVOKABLE QString test();
    Q_INVOKABLE bool refresh();
        //refreshed the connection to the buzzer
};

#endif // BUZZERCONN_H