not reseting state on browser disconnect or reconnect

backend/lib/backend_web/channels/cluster_status_channel.ex

@@ -8,13 +8,13 @@ defmodule BackendWeb.ClusterStatusChannel do
   @impl true
   def join("cluster_status", _params, socket) do
     Logger.info("Client joined clusterstatus channel")
+    :net_kernel.monitor_nodes(true)
     {:ok, %{status: "connected"}, socket}
   end
 
   @impl true
   def handle_in("get_nodes", _payload, socket) do
-    Logger.info("Client requested node list #{inspect(Node.list())}")
-    push(socket, "node_list", %{other_nodes: Node.list(), connected_node: node()})
+    send_node_list(socket)
     {:noreply, socket}
   end
 
@@ -29,4 +29,28 @@ defmodule BackendWeb.ClusterStatusChannel do
   def handle_in(_event, _payload, socket) do
     {:noreply, socket}
   end
+
+  @impl true
+  def handle_info({:nodeup, node_name}, socket) do
+    Logger.info("Node up: #{node_name}, broadcasting updated node list")
+    send_node_list(socket)
+    {:noreply, socket}
+  end
+
+  @impl true
+  def handle_info({:nodedown, node_name}, socket) do
+    Logger.info("Node down: #{node_name}, broadcasting updated node list")
+    send_node_list(socket)
+    {:noreply, socket}
+  end
+
+  defp send_node_list(socket) do
+    game_pid = Backend.GameRunner.get_pid()
+
+    push(socket, "node_list", %{
+      other_nodes: Node.list(),
+      connected_node: node(),
+      game_node: node(game_pid)
+    })
+  end
 end