working on db logic

lib/elixir_ai/cluster_singleton.ex

@@ -1,5 +1,6 @@
 defmodule ElixirAi.ClusterSingleton do
   use GenServer
+  require Logger
 
   @sync_delay_ms 200
 
@@ -7,25 +8,46 @@ defmodule ElixirAi.ClusterSingleton do
 
   def start_link(opts), do: GenServer.start_link(__MODULE__, opts, name: __MODULE__)
 
-  @impl true
   def init(_opts) do
     Process.send_after(self(), :start_singletons, @sync_delay_ms)
     {:ok, :pending}
   end
 
-  @impl true
-  def handle_info(:start_singletons, state) do
+  def handle_info(:start_singletons, _state) do
     for module <- @singletons do
-      case Horde.DynamicSupervisor.start_child(ElixirAi.ChatRunnerSupervisor, module) do
-        {:ok, _pid} -> :ok
-        {:error, {:already_started, _pid}} -> :ok
-        {:error, :already_present} -> :ok
-        {:error, reason} ->
-          require Logger
-          Logger.warning("ClusterSingleton: failed to start #{inspect(module)}: #{inspect(reason)}")
+      if singleton_exists?(module) do
+        Logger.debug(
+          "ClusterSingleton: singleton already exists, skipping start for #{inspect(module)}"
+        )
+      else
+        case Horde.DynamicSupervisor.start_child(ElixirAi.ChatRunnerSupervisor, module) do
+          {:ok, _pid} ->
+            :ok
+
+          {:error, {:already_started, _pid}} ->
+            :ok
+
+          {:error, :already_present} ->
+            :ok
+
+          {:error, reason} ->
+            Logger.warning(
+              "ClusterSingleton: failed to start #{inspect(module)}: #{inspect(reason)}"
+            )
+        end
       end
     end
 
     {:noreply, :started}
   end
+
+  defp singleton_exists?(module) do
+    case Horde.Registry.lookup(ElixirAi.ChatRegistry, module) do
+      [{pid, _metadata} | _] when is_pid(pid) ->
+        true
+
+      _ ->
+        false
+    end
+  end
 end