fix: reload device stream when switching back to existing devices tab

CHANGELOG.txt

@@ -1,6 +1,19 @@
 CHANGELOG - towerops-web
 ========================
 
+2026-02-12 - fix: reload device stream when switching back to existing devices tab
+  - File: lib/towerops_web/live/device_live/index.ex (apply_action/4)
+    Fixed 60-second delay when navigating from "discovered devices" tab back to "existing devices" tab.
+    The device stream existed in LiveView assigns from mount/3, but when the DOM element with
+    phx-update="stream" was removed (viewing discovered tab) and re-added (switching back), LiveView
+    didn't automatically re-render the stream data. Users had to wait for the next PubSub update
+    (device_status_changed) or periodic :tick event (every 15 seconds) to trigger reload_device_stream,
+    which could take 60+ seconds.
+
+    Fix: Explicitly reload the device stream when switching to "existing" tab by calling
+    list_organization_devices and stream(:device_rows, build_device_rows(devices), reset: true),
+    matching the pattern used when loading the discovered tab. Now the table appears instantly.
+
 2026-02-12 - fix: suppress benign shutdown errors during K8s pod rollouts
   - Files: lib/towerops/honeybadger_notice_filter.ex, lib/towerops/honeybadger_filter.ex,
     lib/towerops/logger_filters.ex, config/config.exs, config/runtime.exs,

lib/towerops_web/live/device_live/index.ex

@@ -75,10 +75,15 @@ defmodule ToweropsWeb.DeviceLive.Index do
         })
 
       _ ->
+        # Reload device stream to ensure immediate rendering when switching back to existing tab.
+        # Without this, the table won't appear until the next PubSub update or tick event.
+        devices = Devices.list_organization_devices(organization.id)
+
         socket
         |> assign(:active_tab, "existing")
         |> assign(:discovered_devices, [])
         |> assign(:pagination, nil)
+        |> stream(:device_rows, build_device_rows(devices), reset: true)
     end
   end
 

priv/static/changelog.txt

@@ -4,6 +4,7 @@ Devices Tested & Working
 * Cambium ePMP
 
 2026-02-12
+* Fixed delay when switching between device tabs
 * Improved stability during deployments (graceful shutdown handling)
 * Error reporting improvements
 * Performance improvements for larger deployments