app/headers/baseconn.h

#ifndef BASECONN_H
#define BASECONN_H

#include <QObject>
#include <QTcpSocket>
#include <QDataStream>
#include <QDateTime>
#include <QTimer>
#include <QEventLoop>
#include <QSemaphore>
#include <QThread>
#include <QFuture>
#include <QtConcurrent/QtConcurrent>
#include <string.h>

#include "headers/appsettings.h"
#include "headers/speedtimer.h"

class BaseConn : public QObject
{
    Q_OBJECT

    Q_PROPERTY(QString ipAdress WRITE setIP READ getIP)
    Q_PROPERTY(QString state READ getState NOTIFY stateChanged)
    Q_PROPERTY(int progress READ getProgress NOTIFY progressChanged)
    Q_PROPERTY(QStringList connections READ getConnections NOTIFY connectionsChanged)
    Q_PROPERTY(QString nextRemoteAction READ getNextRemoteAction NOTIFY nextRemoteActionChanged)
    Q_PROPERTY(float nextRemoteActionDelayProg READ getNextRemoteActionDelayProg NOTIFY nextRemoteActionDelayProgChanged)
public:
    explicit BaseConn(QObject *parent = nullptr);

    // values for the socket connection
    int connection_progress;
    QString ip;
    qint16 port = 3563;
    int errors;
    int errors_until_disconnect = 4;

    // the current state
    QString state;
        // can be:
        //  - 'disconnected'
        //  - 'connecting'
        //  - 'connected'

    QStringList connections;

    QString latestReadReply;

    //---general status values---//


private:
    QDateTime *date;
        //to get the current time

    QTcpSocket *socket;
        //socket for communication with the extention

    QList<SpeedTimer*> speedTimers;

    QTimer *refreshTimer;
    QSemaphore remoteSessions;

    int nextConnectionId;

    struct waitingRequest {
        int id;
        QEventLoop * loop;
        QString reply;
    };

    QList<waitingRequest> waitingRequests;

    QString nextRemoteAction;

    float nextRemoteActionDelayProg;

signals:
    void stateChanged();
        //is emitted, when the connection state changes

    void progressChanged();
        //is emmited during the connection process when the progress changes

    void gotUnexpectedReply(QString reply);

    void connectionsChanged();

    void connectionSlotReleased();

    void nextRemoteActionChanged();

    void nextRemoteActionDelayProgChanged();

public slots:

    Q_INVOKABLE bool connectToHost();
        //function to connect to the base station

    Q_INVOKABLE QString sendCommand(QString command);

    Q_INVOKABLE bool refreshConnections();

    void refreshTimers();

    bool startTimers();

    bool stopTimers(QString type);

    bool resetTimers();

    // functions for the qml adapter
    QString getIP() const;
    void setIP(const QString &ipAdress);

    QString getState() const;
    void setState(QString newState);

    int getProgress() const;

    QStringList getConnections();

    QString getNextRemoteAction();

    float getNextRemoteActionDelayProg();

private slots:
     void readyRead();
};

#endif // BASECONN_H