Log an event when a peer joins

templates/default/documentation.html.ep

@@ -752,6 +752,10 @@ systemctl restart vroom.service</pre>
               <td>A peer is being denied because member limit is already reached</td>
             </tr>
             <tr>
+              <td>room_join</td>
+              <td>A peer joins a room</td>
+            </tr>
+            <tr>
               <td>room_leave</td>
               <td>A peer leaves a room</td>
             </tr>

vroom.pl

@@ -1273,6 +1273,10 @@ websocket '/socket.io/:ver/websocket/:id' => sub {
             ]
           )
         );
+        $self->log_event({
+          event => 'room_join',
+          msg   => "Peer $id has joined room $room"
+        });
         # Update room last activity
         $self->update_room_last_activity($room);
       }