WIP: New Plugin: nymea owlet

nymea-plugins.pro

@@ -49,6 +49,7 @@ PLUGIN_DIRS = \
     openuv              \ 
     openweathermap      \
     osdomotics          \
+    owlet               \
     philipshue          \
     powerfox            \
     pushbullet          \

owlet/owletclient.cpp

@@ -0,0 +1,90 @@
+#include "owletclient.h"
+
+#include "extern-plugininfo.h"
+
+#include <QJsonDocument>
+#include <QTimer>
+
+OwletClient::OwletClient(QObject *parent) : QObject(parent)
+{
+
+}
+
+void OwletClient::connectToHost(const QHostAddress &address, int port)
+{
+    if (m_socket) {
+        m_socket->abort();
+        m_socket->deleteLater();
+    }
+
+    m_socket = new QTcpSocket(this);
+    connect(m_socket, &QTcpSocket::connected, this, [this](){
+        emit connected();
+    });
+    connect(m_socket, &QTcpSocket::disconnected, this, [this, address, port](){
+        qCDebug(dcOwlet()) << "Disconnected from owleet";
+        emit disconnected();
+        QTimer::singleShot(1000, this, [=]{
+            connectToHost(address, port);
+        });
+
+    });
+    connect(m_socket, &QTcpSocket::errorOccurred, this, [this](){
+        qCDebug(dcOwlet()) << "Error in owlet communication";
+        emit error();
+    });
+
+    connect(m_socket, &QTcpSocket::readyRead, this, [this](){
+        dataReceived(m_socket->readAll());
+    });
+    m_socket->connectToHost(address, port);
+}
+
+int OwletClient::sendCommand(const QString &method, const QVariantMap &params)
+{
+    if (!m_socket) {
+        qCWarning(dcOwlet()) << "Not connected to owlet. Not sending command.";
+        return -1;
+    }
+
+    int id = ++m_commandId;
+
+    QVariantMap packet;
+    packet.insert("id", id);
+    packet.insert("method", method);
+    packet.insert("params", params);
+    m_socket->write(QJsonDocument::fromVariant(packet).toJson(QJsonDocument::Compact));
+    return id;
+}
+
+void OwletClient::dataReceived(const QByteArray &data)
+{
+    m_receiveBuffer.append(data);
+
+    int splitIndex = m_receiveBuffer.indexOf("}\n{") + 1;
+    if (splitIndex <= 0) {
+        splitIndex = m_receiveBuffer.length();
+    }
+    QJsonParseError error;
+    QJsonDocument jsonDoc = QJsonDocument::fromJson(m_receiveBuffer.left(splitIndex), &error);
+    if (error.error != QJsonParseError::NoError) {
+        //        qWarning() << "Could not parse json data from nymea" << m_receiveBuffer.left(splitIndex) << error.errorString();
+        return;
+    }
+    //    qDebug() << "received response" << qUtf8Printable(jsonDoc.toJson(QJsonDocument::Indented));
+    m_receiveBuffer = m_receiveBuffer.right(m_receiveBuffer.length() - splitIndex - 1);
+    if (!m_receiveBuffer.isEmpty()) {
+        staticMetaObject.invokeMethod(this, "dataReceived", Qt::QueuedConnection, Q_ARG(QByteArray, QByteArray()));
+    }
+
+    QVariantMap packet = jsonDoc.toVariant().toMap();
+
+    if (packet.contains("notification")) {
+        qCDebug(dcOwlet()) << "Notification received:" << packet;
+        emit notificationReceived(packet.value("notification").toString(), packet.value("params").toMap());
+    } else if (packet.contains("id")) {
+        qCDebug(dcOwlet()) << "reply received:" << packet;
+        int id = packet.value("id").toInt();
+        emit replyReceived(id, packet.value("params").toMap());
+    }
+}

owlet/owletclient.h

@@ -0,0 +1,37 @@
+#ifndef OWLETCLIENT_H
+#define OWLETCLIENT_H
+
+#include <QObject>
+#include <QHostAddress>
+#include <QTcpSocket>
+
+class OwletClient : public QObject
+{
+    Q_OBJECT
+public:
+    explicit OwletClient(QObject *parent = nullptr);
+
+    void connectToHost(const QHostAddress &address, int port);
+
+    int sendCommand(const QString &method, const QVariantMap &params);
+
+signals:
+    void connected();
+    void disconnected();
+    void error();
+
+    void replyReceived(int commandId, const QVariantMap &params);
+    void notificationReceived(const QString &name, const QVariantMap &params);
+
+private slots:
+    void dataReceived(const QByteArray &data);
+
+private:
+    QTcpSocket *m_socket = nullptr;
+    int m_commandId = 0;
+
+    QByteArray m_receiveBuffer;
+
+};
+
+#endif // OWLETCLIENT_H