add force rediscovery per site

lib/towerops_web/live/site_live/show.ex

@@ -5,6 +5,8 @@ defmodule ToweropsWeb.SiteLive.Show do
   alias Towerops.Devices
   alias Towerops.Monitoring
   alias Towerops.Sites
+  alias Towerops.Snmp
+  alias Towerops.Workers.DiscoveryWorker
 
   @impl true
   def mount(_params, _session, socket) do
@@ -26,6 +28,30 @@ defmodule ToweropsWeb.SiteLive.Show do
      |> assign(:latency_chart_data, latency_chart_data)}
   end
 
+  @impl true
+  def handle_event("force_rediscover_all", _params, socket) do
+    devices = socket.assigns.device
+    snmp_devices = Enum.filter(devices, & &1.snmp_enabled)
+
+    if Enum.empty?(snmp_devices) do
+      {:noreply, put_flash(socket, :error, "No SNMP-enabled devices at this site")}
+    else
+      # Enqueue discovery for all SNMP-enabled devices
+      Enum.each(snmp_devices, fn device ->
+        enqueue_discovery(device.id)
+      end)
+
+      count = length(snmp_devices)
+
+      {:noreply,
+       put_flash(
+         socket,
+         :info,
+         "Discovery started for #{count} device#{if count == 1, do: "", else: "s"}"
+       )}
+    end
+  end
+
   defp load_site_latency_chart_data(devices) do
     if Enum.empty?(devices) do
       nil
@@ -61,4 +87,15 @@ defmodule ToweropsWeb.SiteLive.Show do
       y: check.response_time_ms
     }
   end
+
+  # Enqueue discovery job - safe to call in test environment
+  defp enqueue_discovery(device_id) do
+    if Application.get_env(:towerops, :env) == :test do
+      # In test, run synchronously
+      Task.start(fn -> Snmp.discover_device(Devices.get_device!(device_id)) end)
+    else
+      # In dev/prod, enqueue to Exq
+      {:ok, _job} = Exq.enqueue(Exq, "discovery", DiscoveryWorker, [device_id])
+    end
+  end
 end

lib/towerops_web/live/site_live/show.html.heex

@@ -9,6 +9,15 @@
     {@page_title}
     <:subtitle>{@site.location}</:subtitle>
     <:actions>
+      <%= if @device != [] do %>
+        <.button
+          type="button"
+          phx-click="force_rediscover_all"
+          data-confirm="This will trigger SNMP discovery for all devices at this site. Continue?"
+        >
+          <.icon name="hero-magnifying-glass" class="h-4 w-4" /> Force Rediscover All
+        </.button>
+      <% end %>
       <.button navigate={~p"/sites/#{@site.id}/edit"}>
         <.icon name="hero-pencil" class="h-4 w-4" /> Edit
       </.button>