Added data logger (again)

Manager.cpp

@@ -28,7 +28,7 @@ const std::string NUC5 = "d0:c6:37:bc:5c:41";
 
 static long long startTime = 0;
 
-static QString GetCurrentTimeForFileName()
+static QString getCurrentTimeForFileName()
 {
 	auto time = std::time(nullptr);
 	std::stringstream ss;
@@ -66,8 +66,43 @@ bool Manager::trigger() {
 }
 
 void Manager::start() {
+    if (_logToDisk) {
+        QString folder = QStandardPaths::writableLocation(QStandardPaths::DownloadLocation) + "/ftm/";
+        QString prefix = getCurrentTimeForFileName();
+
+        ftmLogger = std::make_shared<QFile>(folder+"/"+prefix+"_ftm.txt");
+
+        if (!ftmLogger->exists()) {
+            // create the folder, if necessary
+            QDir dir(folder);
+            if (!dir.exists()) {
+                qWarning("creating new folder");
+                if (!dir.mkpath(".")) {
+                    qWarning() << "Failed to create new folder";
+                }
+            }
+        }
+
+        if (!ftmLogger->open(QIODevice::ReadWrite)) {
+            qWarning() << "Failed to create data logger file" << ftmLogger->fileName();
+            ftmLogger = nullptr;
+        }
+
+        // write header
+        if (ftmLogger) {
+            QTextStream out(ftmLogger.get());
+            out << "timeInMS;" << "MAC;" << "NucIdx;" << "Success;"
+                << "DistMM;" << "DistStdDevMM;" << "Rssi;" << "NumSuccessfullMeas;" << "NumAttemptedMeas"
+                << endl;
+        }
+
+    } else {
+        ftmLogger = nullptr;
+    }
+
     startTime = nowInMsec();
 
+
 #ifdef ANDROID
     //QAndroidJniObject::callStaticMethod<int>("android/net/wifi/UWB", "start", "()I");
     QAndroidJniObject::callStaticMethod<int>("android/net/wifi/RTT", "start", "()I");
@@ -91,6 +126,8 @@ void Manager::start() {
 
         onWifiData(res);
     }
+
+    stop();
 #endif
 }
 
@@ -101,6 +138,12 @@ void Manager::stop() {
     //QAndroidJniObject::callStaticMethod<int>("android/net/wifi/UWB", "stop", "()I");
 #endif
 
+    if (ftmLogger) {
+        ftmLogger->flush();
+        ftmLogger->close();
+        ftmLogger = nullptr;
+    }
+
     isRunning = false;
 }
 
@@ -125,6 +168,21 @@ void Manager::onWifiData(WifiRttResult result) {
         if(NUC5 == result.mac) {nucIdx = 4;}
 
         emit newDistMeas(nucIdx, result.distMM);
+
+        if (ftmLogger) {
+            QTextStream out(ftmLogger.get());
+
+            out << result.timeMS  << ";"
+                << QString::fromStdString(result.mac) << ";"
+                << nucIdx         << ";"
+                << result.success << ";"
+                << result.distMM  << ";"
+                << result.distStdDevMM << ";"
+                << result.rssi << ";"
+                << result.numSuccessfullMeas << ";"
+                << result.numAttemptedMeas
+                << endl;
+        }
     }
 }