LedDisplay/OmobiDisplayApp/omobidisplaybackend.cpp

#include "omobidisplaybackend.h"

OmobiDisplayBackend::OmobiDisplayBackend(QObject *parent) : QObject(parent)
{
    this->ble = new QBluetoothLeUart();
    this->displayTextModel = new OmobiDisplayTextModel(this);

    connect(this->ble, &QBluetoothLeUart::stateChanged, this, &OmobiDisplayBackend::handleBluetoothStateChange);
    connect(this->ble, &QBluetoothLeUart::foundNewDevice, this, &OmobiDisplayBackend::handleFoundNewDevice);
    connect(this->ble, &QBluetoothLeUart::dataReceived, this, &OmobiDisplayBackend::DataHandler);
    connect(this->ble, &QBluetoothLeUart::connectedToDevice, this, &OmobiDisplayBackend::handleBluetoothDeviceConected);
    connect(this->displayTextModel, &OmobiDisplayTextModel::dataChanged, this, &OmobiDisplayBackend::handleDisplayTextModelDataChanged);

    this->setState(Idle);
    this->ble->startScanningForDevices();
}


void OmobiDisplayBackend::startScanning() {
    this->ble->startScanningForDevices();
}

void OmobiDisplayBackend::handleBluetoothStateChange(QBluetoothLeUart::BluetoothLeUartState state){
    switch(state){
    case QBluetoothLeUart::Idle: {
        this->setState(Idle);
        break;
    }
    case QBluetoothLeUart::Scanning: {
        this->setState(Scanning);
        break;
    }
    case QBluetoothLeUart::ScanFinished: {
        this->setState(ReadyToConnect);
        break;
    }
    case QBluetoothLeUart::Connecting: {
        this->setState(Connecting);
        break;
    }
    case QBluetoothLeUart::ScanningForService: {
        this->setState(Connecting);
        break;
    }
    case QBluetoothLeUart::ServiceFound: {
        this->setState(Connecting);
        break;
    }
    case QBluetoothLeUart::Connected:
    {
        break;
    }
    }
}

void OmobiDisplayBackend::handleBluetoothDeviceConected() {
    this->ble->sendData("Hallihallo ich bin Julia Mueller");

    // get the existing model data!
    // TODO: implement some communication!

    QString currentDisplayText = "[[],[]]";

    this->setState(Connected);
}

void OmobiDisplayBackend::handleFoundNewDevice(QBluetoothLeUartDevice* device) {
    qDebug() << "Found a device: name: " << device->getName() << " address: " << device->getAddress();
}

void OmobiDisplayBackend::DataHandler(const QString &s){

    qDebug() << "NEw data: " << s;

}


void OmobiDisplayBackend::handleDisplayTextModelDataChanged() {
    qDebug() << "MODEL DATA CHANGED!";
}

QBluetoothLeUart* OmobiDisplayBackend::getBleController() {
    return this->ble;
}


OmobiDisplayTextModel* OmobiDisplayBackend::getDisplayTextModel() {
    return this->displayTextModel;
}

OmobiDisplayBackend::OmobiDisplayAppState OmobiDisplayBackend::getState() {
    return this->state;
}

void OmobiDisplayBackend::setState(OmobiDisplayAppState state) {
    if(state == this->state)
        return;

    this->state = state;
    emit this->stateChanged();

    if(this->state == Idle)
        this->ble->startScanningForDevices();
}