feat: implement ping and particle data size in statusbar

src/MainWindow.cpp

@@ -7,6 +7,7 @@
 #include "authmanager.h"
 #include "createstreamdialog.h"
 #include "memberpickerdialog.h"
+#include "networkmanager.h"
 #include "settingsdialog.h"
 #include "textinputdialog.h"
 #include "ui_mainwindow.h"
@@ -18,7 +19,7 @@
 #include <QMenu>
 #include <QKeyEvent>
 #include <QMouseEvent>
-#include <QRandomGenerator>
+#include <QJsonObject>
 #include <QToolButton>
 #include <QSystemTrayIcon>
 #include <QTimer>
@@ -81,11 +82,21 @@ MainWindow::MainWindow(QWidget *parent)
   m_storageLabel->setStyleSheet(statusBarLabelStyle);
   ui->statusbar->addPermanentWidget(m_storageLabel);
 
-  // Setup ping timer to oscillate every 500ms
+  // Setup ping timer for periodic server connectivity check
   m_pingTimer = new QTimer(this);
-  connect(m_pingTimer, &QTimer::timeout, this, &MainWindow::updatePingIndicator);
-  m_pingTimer->start(500);
-  updatePingIndicator();
+  connect(m_pingTimer, &QTimer::timeout, this, []() {
+    NetworkManager::instance().ping();
+  });
+  connect(&NetworkManager::instance(), &NetworkManager::pingResult, this, [this](int ms) {
+    m_pingLabel->setText("connected " + QString::number(ms) + "ms");
+    m_pingLabel->setStyleSheet("QLabel { color: #00AA00; }");
+  });
+  connect(&NetworkManager::instance(), &NetworkManager::pingFailed, this, [this]() {
+    m_pingLabel->setText("disconnected");
+    m_pingLabel->setStyleSheet("QLabel { color: #AA0000; }");
+  });
+  m_pingTimer->start(10000);
+  NetworkManager::instance().ping();
 
   ui->splitter->setStretchFactor(0, 1);
   ui->splitter->setStretchFactor(1, 4);
@@ -417,10 +428,30 @@ void MainWindow::updateStatusBar()
       m_positionLabel->setText("");
     }
 
-    // Update storage indicator with pseudo-random size based on stream ID
-    uint hash = qHash(m_selectedStreamId);
-    int sizeKB = 50 + (hash % 950); // Random size between 50-1000 kB
-    m_storageLabel->setText(QString::number(sizeKB) + " kB");
+    // Update data size indicator for selected particle
+    if (!m_selectedParticleId.isEmpty())
+    {
+      const Particle *particle = m_store->particleById(m_selectedParticleId);
+      if (particle)
+      {
+        QJsonObject dataObj;
+        for (auto it = particle->data.constBegin(); it != particle->data.constEnd(); ++it)
+          dataObj.insert(it.key(), QJsonValue::fromVariant(it.value()));
+        int bytes = QJsonDocument(dataObj).toJson(QJsonDocument::Compact).size();
+        if (bytes < 1024)
+          m_storageLabel->setText(QString::number(bytes) + " B");
+        else
+          m_storageLabel->setText(QString::number(bytes / 1024) + " kB");
+      }
+      else
+      {
+        m_storageLabel->setText("");
+      }
+    }
+    else
+    {
+      m_storageLabel->setText("");
+    }
   }
   else
   {
@@ -429,23 +460,6 @@ void MainWindow::updateStatusBar()
   }
 }
 
-void MainWindow::updatePingIndicator()
-{
-  // Oscillate ping between 15-35ms
-  static int basePing = 23;
-  int variation = (QRandomGenerator::global()->bounded(21)) - 10; // -10 to +10
-  int currentPing = basePing + variation;
-  if (currentPing < 15)
-  {
-    currentPing = 15;
-  }
-  if (currentPing > 35)
-  {
-    currentPing = 35;
-  }
-
-  m_pingLabel->setText("connected " + QString::number(currentPing) + "ms");
-}
 
 void MainWindow::showTextInputDialog()
 {

src/MainWindow.h

@@ -73,7 +73,6 @@ private:
 
   void showTextInputDialog();
   void updateStatusBar();
-  void updatePingIndicator();
   QString m_selectedParticleId;
   QString m_selectedNetworkName;
   QString m_selectedStreamId;

src/networkmanager.cpp

@@ -1,4 +1,5 @@
 #include "networkmanager.h"
+#include <QElapsedTimer>
 #include <QJsonDocument>
 #include <QNetworkReply>
 #include <QNetworkRequest>
@@ -107,3 +108,33 @@ void NetworkManager::setSessionToken(const QString &newToken)
 {
   m_sessionToken = newToken;
 }
+
+class PingTimer : public QObject
+{
+public:
+  QElapsedTimer timer;
+  explicit PingTimer(QObject *parent = nullptr) : QObject(parent) { timer.start(); }
+};
+
+void NetworkManager::ping()
+{
+  auto *pingTimer = new PingTimer(this);
+
+  QNetworkRequest request(getFullUrl(""));
+  QNetworkReply *reply = m_qnam->get(request);
+
+  connect(reply, &QNetworkReply::finished, pingTimer, [this, pingTimer, reply]() {
+    int elapsed = static_cast<int>(pingTimer->timer.elapsed());
+    pingTimer->deleteLater();
+
+    int statusCode = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
+    if (statusCode > 0)
+    {
+      emit pingResult(elapsed);
+    }
+    else
+    {
+      emit pingFailed();
+    }
+  });
+}

src/networkmanager.h

@@ -32,12 +32,16 @@ public slots:
   QNetworkReply *del(const QString &path);
   QNetworkReply *del(const QString &path, const QJsonDocument &data);
 
+  void ping();
+
   /// @brief sets session token which will is injected into every request's headers
   void setSessionToken(const QString &token);
 
 signals:
   /// @brief Emitted when a request is made and fails required authentication.
   void unauthorizedDetected();
+  void pingResult(int ms);
+  void pingFailed();
 
 private:
   NetworkManager();