Refactor sensors into separate files

- this should make things a lot easier to maintain. instead of having everything in the same file, each sensor provides a constructor that sets it up correctly etc.
- this should also get the step counter running when the service starts, which is necessary, since the sensor won't count on most devices unless the service is running.
- this also temporarily removes the gps module from the service. it's not implemented right now anyway.

1 files changed, 53 insertions, 0 deletions

diff --git a/sensorPlugins/heartrateSensor.cpp b/sensorPlugins/heartrateSensor.cpp
new file mode 100644
index 0000000..3ae18ee
--- /dev/null
+++ b/sensorPlugins/heartrateSensor.cpp
@@ -0,0 +1,53 @@
+#include <QDateTime>
+#include <QTimer>
+#include <QtSensors/QHrmSensor>
+#include <QDebug>
+#include <QString>
+
+#include "../logger.h"
+
+#include "heartrateSensor.h"
+
+HeartrateSensorPlugin::HeartrateSensorPlugin(QObject *parent, int initInterval)  :
+    QObject(parent){
+    interval = initInterval;
+
+    hrmSensor = new QHrmSensor(this);
+    connect(hrmSensor,SIGNAL(readingChanged()),this,SLOT(finishRecording()));
+
+    qDebug() << "heartrate sensor is enabled. interval is (ms) " << interval;
+    recordIntervalTimer = new QTimer(this);
+    connect(recordIntervalTimer,SIGNAL(timeout()),this,SLOT(triggerRecording()));
+    recordIntervalTimer->setSingleShot(true);
+    recordIntervalTimer->start(interval);
+    lastRecordTime = QDateTime::currentDateTime();
+}
+
+void HeartrateSensorPlugin::timeUpdate() {
+    uint elapsed = QDateTime::currentMSecsSinceEpoch() - lastRecordTime.toMSecsSinceEpoch();
+    qDebug() << "time until next steps recording" << recordIntervalTimer->remainingTime() << " elapsed = " << elapsed << " lastRecordTime " << lastRecordTime.toMSecsSinceEpoch();
+    if (elapsed > interval) { //if too much time has passed, reset the timer and record
+        triggerRecording();
+        lastRecordTime = QDateTime::currentDateTime();
+    } else { //otherwise, restart the timer and compensate for time spent in suspend
+        recordIntervalTimer->start(interval - elapsed);
+    }
+}
+
+void HeartrateSensorPlugin::triggerRecording() {
+    qDebug() << "heartrate interval recording";
+    recordIntervalTimer->start(interval);
+    hrmSensor->start();
+}
+
+void HeartrateSensorPlugin::finishRecording() {
+    qDebug() << "bpm update received";
+    int bpm = hrmSensor->reading()->bpm();
+    qDebug() << QDateTime::currentDateTime().toString("hh:mm:ss") << " : " << bpm << hrmSensor->status() << hrmSensor->isActive();
+    if ((bpm == 0) || (hrmSensor->status() < 3)) {
+        qDebug() << "hrm sensor accuracy insufficient. waiting.";
+        return;
+    }
+    writeReadingToFile(QString::number(QDateTime::currentSecsSinceEpoch()) + " : " + QString::number(bpm) + "\n", "hrmOut.txt");
+    hrmSensor->stop();
+}