refactor: decouple network detail widget from business logic

src/MainWindow.cpp

@@ -108,7 +108,6 @@ MainWindow::MainWindow(QWidget *parent)
   m_splitter->setStretchFactor(0, 1);
   m_splitter->setStretchFactor(1, 4);
   m_splitter->setStretchFactor(2, 1);
-  m_splitter->setStretchFactor(3, 5);
 
   setupModels();
 
@@ -124,7 +123,6 @@ MainWindow::MainWindow(QWidget *parent)
   connect(m_authManager, &AuthManager::signedOut, m_authDialog, &AuthDialog::show);
   connect(m_authManager, &AuthManager::signedIn, this, [this]() {
     m_store->setCurrentUserEmail(m_authManager->sessionData()->email);
-    m_networkDetailWidget->setCurrentUserEmail(m_authManager->sessionData()->email);
     m_store->loadStartupData();
   });
   connect(m_store, &Store::startupDataLoaded, this, [this]() {
@@ -158,9 +156,9 @@ MainWindow::MainWindow(QWidget *parent)
   // "New stream" button
   m_createStreamDialog = new CreateStreamDialog(this);
   connect(m_newStreamButton, &QPushButton::clicked, this, [this]() {
-    if (m_selectedNetworkName.isEmpty())
+    if (m_selectedNetworkId.isEmpty())
       return;
-    const Network *network = m_store->networkById(m_selectedNetworkName);
+    const Network *network = m_store->networkById(m_selectedNetworkId);
     if (network)
       m_createStreamDialog->setNetworkMembers(network->members);
     m_createStreamDialog->show();
@@ -169,14 +167,14 @@ MainWindow::MainWindow(QWidget *parent)
   });
   connect(m_createStreamDialog, &CreateStreamDialog::streamRequested, this,
           [this](const QString &name, const QString &visibility, const QStringList &members) {
-            m_store->createStream(m_selectedNetworkName, name, "", visibility, members);
+            m_store->createStream(m_selectedNetworkId, name, "", visibility, members);
           });
 
   // "Add members" toolbar button (ListAdd icon in right sidebar)
   connect(m_addMembersButton, &QToolButton::clicked, this, [this]() {
-    if (m_selectedStreamId.isEmpty() || m_selectedNetworkName.isEmpty())
+    if (m_selectedStreamId.isEmpty() || m_selectedNetworkId.isEmpty())
       return;
-    const Network *network = m_store->networkById(m_selectedNetworkName);
+    const Network *network = m_store->networkById(m_selectedNetworkId);
     const Stream *stream = m_store->streamById(m_selectedStreamId);
     if (!network || !stream)
       return;
@@ -446,10 +444,32 @@ void MainWindow::setupModels()
   // Create store (data loaded after sign-in via loadStartupData)
   m_store = new Store(this);
 
-  m_networkDetailWidget = new NetworkDetailWidget(m_store);
+  m_networkDetailWidget = new NetworkDetailWidget(this);
   m_splitter->addWidget(m_networkDetailWidget);
+  m_splitter->setStretchFactor(3, 4);
   m_networkDetailWidget->hide();
 
+  // Push fresh data when networks change
+  connect(m_store, &Store::networksChanged, this, [this]() {
+    if (!m_selectedNetworkId.isEmpty() && m_networkDetailWidget->isVisible())
+    {
+      const Network *network = m_store->networkById(m_selectedNetworkId);
+      if (network)
+        m_networkDetailWidget->setNetwork(*network, m_authManager->sessionData() ? m_authManager->sessionData()->email : QString());
+      else
+        m_networkDetailWidget->clear();
+    }
+  });
+
+  // Handle add-member requests from the widget
+  connect(m_networkDetailWidget, &NetworkDetailWidget::addMemberRequested, this,
+          [this](const QString &networkId, const QString &email) {
+            auto *op = m_store->addNetworkMembers(networkId, {email});
+            connect(op, &Operation::success, this, [this, networkId](const QJsonDocument &) {
+              m_store->fetchNetwork(networkId);
+            });
+          });
+
   // Create and set tree model
   m_networkStreamModel = new NetworkStreamModel(m_store, this);
   m_treeView->setModel(m_networkStreamModel);
@@ -514,7 +534,7 @@ void MainWindow::onTreeSelectionChanged(const QItemSelection &selected, const QI
     // Also track the parent network
     QModelIndex parentIndex = m_networkStreamModel->parent(index);
     QString networkId = m_networkStreamModel->networkIdFromIndex(parentIndex);
-    m_selectedNetworkName = networkId;
+    m_selectedNetworkId = networkId;
 
     // Show stream members
     m_membersList->clear();
@@ -548,10 +568,18 @@ void MainWindow::onTreeSelectionChanged(const QItemSelection &selected, const QI
     m_membersList->clear();
 
     QString networkId = m_networkStreamModel->networkIdFromIndex(index);
-    m_selectedNetworkName = networkId;
+    m_selectedNetworkId = networkId;
 
     // Show network detail widget
-    m_networkDetailWidget->setNetwork(networkId);
+    const Network *network = m_store->networkById(networkId);
+    if (network)
+    {
+      m_networkDetailWidget->setNetwork(*network, m_authManager->sessionData() ? m_authManager->sessionData()->email : QString());
+    }
+    else
+    {
+      m_networkDetailWidget->clear();
+    }
     m_contentView->hide();
     m_rightSidebar->hide();
     m_networkDetailWidget->show();
@@ -622,9 +650,9 @@ void MainWindow::updateStatusBar()
   QStringList pathComponents;
 
   // Add network if selected
-  if (!m_selectedNetworkName.isEmpty())
+  if (!m_selectedNetworkId.isEmpty())
   {
-    const Network *network = m_store->networkById(m_selectedNetworkName);
+    const Network *network = m_store->networkById(m_selectedNetworkId);
     if (network)
     {
       pathComponents << network->name;

src/MainWindow.h

@@ -99,7 +99,7 @@ private:
   void showTextInputDialog();
   void updateStatusBar();
   QString m_selectedParticleId;
-  QString m_selectedNetworkName;
+  QString m_selectedNetworkId;
   QString m_selectedStreamId;
   int m_selectedParticleRow;
   QLabel *m_currentPathLabel;

src/networkdetailwidget.cpp

@@ -1,5 +1,4 @@
 #include "networkdetailwidget.h"
-#include "store.h"
 #include <QInputDialog>
 #include <QLabel>
 #include <QListWidget>
@@ -8,8 +7,8 @@
 #include <QVBoxLayout>
 #include <QHBoxLayout>
 
-NetworkDetailWidget::NetworkDetailWidget(Store *store, QWidget *parent)
-    : QWidget(parent), m_store(store)
+NetworkDetailWidget::NetworkDetailWidget(QWidget *parent)
+    : QWidget(parent)
 {
   auto *layout = new QVBoxLayout(this);
   layout->setContentsMargins(16, 16, 16, 16);
@@ -54,7 +53,6 @@ NetworkDetailWidget::NetworkDetailWidget(Store *store, QWidget *parent)
   buttonRow->addStretch();
   layout->addLayout(buttonRow);
 
-  // Admin actions
   connect(m_addMemberBtn, &QPushButton::clicked, this, [this]() {
     bool ok;
     QString email = QInputDialog::getText(this, "Add Member",
@@ -62,64 +60,42 @@ NetworkDetailWidget::NetworkDetailWidget(Store *store, QWidget *parent)
                                           QString(), &ok);
     if (ok && !email.isEmpty())
     {
-      auto *op = m_store->addNetworkMembers(m_networkId, {email});
-      connect(op, &Operation::success, this, [this](const QJsonDocument &) {
-        m_store->fetchNetwork(m_networkId);
-      });
+      emit addMemberRequested(m_networkId, email);
     }
   });
-
-  // Refresh when networks change
-  connect(m_store, &Store::networksChanged, this, [this]() {
-    if (!m_networkId.isEmpty())
-      refresh();
-  });
 }
 
-void NetworkDetailWidget::setNetwork(const QString &networkId)
+void NetworkDetailWidget::setNetwork(const Network &network, const QString &currentUserEmail)
 {
-  m_networkId = networkId;
-  refresh();
-}
+  m_networkId = network.id;
 
-void NetworkDetailWidget::setCurrentUserEmail(const QString &email)
-{
-  m_currentUserEmail = email;
-  if (!m_networkId.isEmpty())
-    refresh();
-}
+  m_nameLabel->setText(network.name);
+  m_adminLabel->setText("Admin: " + network.admin.emailPrefix);
 
-void NetworkDetailWidget::refresh()
-{
-  const Network *network = m_store->networkById(m_networkId);
-  if (!network)
-  {
-    m_nameLabel->setText("");
-    m_adminLabel->setText("");
-    m_streamBar->setValue(0);
-    m_streamBarLabel->setText("");
-    m_membersList->clear();
-    m_addMemberBtn->hide();
-    return;
-  }
-
-  m_nameLabel->setText(network->name);
-  m_adminLabel->setText("Admin: " + network->admin.emailPrefix);
-
-  m_streamBar->setMaximum(network->openStreamCapacity > 0 ? network->openStreamCapacity : 1);
-  m_streamBar->setValue(network->openStreamCount);
+  m_streamBar->setMaximum(network.openStreamCapacity > 0 ? network.openStreamCapacity : 1);
+  m_streamBar->setValue(network.openStreamCount);
   m_streamBarLabel->setText(QString("%1 / %2 open streams")
-                                .arg(network->openStreamCount)
-                                .arg(network->openStreamCapacity));
+                                .arg(network.openStreamCount)
+                                .arg(network.openStreamCapacity));
 
   m_membersList->clear();
-  for (const auto &member : network->members)
+  for (const auto &member : network.members)
   {
     m_membersList->addItem(member.email);
   }
 
-  // Show admin controls only if current user is admin
-  bool isAdmin = (!m_currentUserEmail.isEmpty() &&
-                  m_currentUserEmail == network->admin.email);
+  bool isAdmin = (!currentUserEmail.isEmpty() &&
+                  currentUserEmail == network.admin.email);
   m_addMemberBtn->setVisible(isAdmin);
 }
+
+void NetworkDetailWidget::clear()
+{
+  m_networkId.clear();
+  m_nameLabel->setText("");
+  m_adminLabel->setText("");
+  m_streamBar->setValue(0);
+  m_streamBarLabel->setText("");
+  m_membersList->clear();
+  m_addMemberBtn->hide();
+}

src/networkdetailwidget.h

@@ -1,30 +1,31 @@
 #ifndef NETWORKDETAILWIDGET_H
 #define NETWORKDETAILWIDGET_H
 
+#include "models.h"
 #include <QWidget>
 
-class Store;
+QT_BEGIN_NAMESPACE
 class QLabel;
 class QProgressBar;
 class QListWidget;
 class QPushButton;
+QT_END_NAMESPACE
 
 class NetworkDetailWidget : public QWidget
 {
   Q_OBJECT
 
 public:
-  explicit NetworkDetailWidget(Store *store, QWidget *parent = nullptr);
+  explicit NetworkDetailWidget(QWidget *parent = nullptr);
 
-  void setNetwork(const QString &networkId);
-  void setCurrentUserEmail(const QString &email);
+  void setNetwork(const Network &network, const QString &currentUserEmail);
+  void clear();
+
+signals:
+  void addMemberRequested(const QString &networkId, const QString &email);
 
 private:
-  void refresh();
-
-  Store *m_store;
   QString m_networkId;
-  QString m_currentUserEmail;
 
   QLabel *m_nameLabel;
   QLabel *m_adminLabel;