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#ifndef MODBUSRTUMASTER_H
#define MODBUSRTUMASTER_H

#include <QObject>
#include <QtSerialBus>
#include <QSerialPort>
#include <QTimer>
#include <QUuid>

class ModbusRTUMaster : public QObject
{
    Q_OBJECT
public:
    explicit ModbusRTUMaster(QString serialPort, int baudrate, QSerialPort::Parity parity, int dataBits, int stopBits, QObject *parent = nullptr);
    ~ModbusRTUMaster();

    bool connectDevice();

    bool readCoil(int slaveAddress, int registerAddress);
    bool readDiscreteInput(int slaveAddress, int registerAddress);
    bool readInputRegister(int slaveAddress, int registerAddress);
    bool readHoldingRegister(int slaveAddress, int registerAddress);

    QUuid writeCoil(int slaveAddress, int registerAddress, bool status);
    QUuid writeHoldingRegister(int slaveAddress, int registerAddress, int data);

    QString serialPort();

private:
    QModbusRtuSerialMaster *m_modbusRtuSerialMaster;
    QTimer *m_reconnectTimer = nullptr;

private slots:
    void onReplyFinished();
    void onReplyErrorOccured(QModbusDevice::Error error);
    void onReconnectTimer();

    void onModbusErrorOccurred(QModbusDevice::Error error);
    void onModbusStateChanged(QModbusDevice::State state);

signals:
    void connectionStateChanged(bool status);
    void receivedCoil(int slaveAddress, int modbusRegister, bool value);
    void receivedDiscreteInput(int slaveAddress, int modbusRegister, bool value);
    void receivedHoldingRegister(int slaveAddress, int modbusRegister, int value);
    void receivedInputRegister(int slaveAddress, int modbusRegister, int value);

    void writeRequestFinished(QUuid requestId, bool success);
};

#endif // MODBUSRTUMASTER_H