ML-189: simplify release-component notifications

- Use a tagged type
- Leave skipping responsibility to subscribed process

backlog/tasks/ml-189 - Make-Release-components-dynamic-tag-type-safe.md

@@ -1,10 +1,10 @@
 ---
 id: ML-189
 title: Make Release component's dynamic tag type-safe
-status: To Do
+status: Done
 assignee: []
 created_date: "2026-05-19 08:42"
-updated_date: "2026-05-19 09:10"
+updated_date: "2026-05-19 11:13"
 labels:
   - audit
   - liveview
@@ -96,3 +96,26 @@ end
 3. Run `mix test test/music_library_web/components/release_test.exs` — all existing Release component tests pass.
 4. Confirm `on_release_loaded` no longer appears in either LiveView template or the Release component.
 <!-- SECTION:NOTES:END -->
+
+## Final Summary
+
+<!-- SECTION:FINAL_SUMMARY:BEGIN -->
+
+### Changes
+
+**1. Release component** (`lib/music_library_web/components/release.ex`):
+
+- `notify_release_loaded/2` now always sends `{__MODULE__, {:loaded, release}}` — removed the nil-check and `on_release_loaded` attribute-based conditional.
+
+**2. ScrobbleLive.ReleaseShow** (`lib/music_library_web/live/scrobble_live/release_show.ex`):
+
+- Updated `handle_info` to match `{MusicLibraryWeb.Components.Release, {:loaded, release}}`.
+- Removed `on_release_loaded={:release_loaded}` assign from the template.
+
+**3. CollectionLive.Show** (`lib/music_library_web/live/collection_live/show.ex`):
+
+- Added no-op `handle_info({MusicLibraryWeb.Components.Release, {:loaded, _release}}, socket)` to consume the message (previously silently dropped).
+
+All 21 tests pass (12 release component + 3 release_show + 6 collection_show).
+
+<!-- SECTION:FINAL_SUMMARY:END -->

lib/music_library_web/components/release.ex

@@ -76,11 +76,8 @@ defmodule MusicLibraryWeb.Components.Release do
      )}
   end
 
-  defp notify_release_loaded(socket, release) do
-    case socket.assigns[:on_release_loaded] do
-      nil -> :ok
-      tag -> send(self(), {tag, release})
-    end
+  defp notify_release_loaded(_socket, release) do
+    send(self(), {__MODULE__, {:loaded, release}})
   end
 
   defp apply_pending_form_params(socket) do

lib/music_library_web/live/collection_live/show.ex

@@ -470,6 +470,10 @@ defmodule MusicLibraryWeb.CollectionLive.Show do
     RecordActions.handle_chats_changed(socket)
   end
 
+  def handle_info({MusicLibraryWeb.Components.Release, {:loaded, _release}}, socket) do
+    {:noreply, socket}
+  end
+
   @impl true
   def handle_info({:update, record}, socket) do
     cond do

lib/music_library_web/live/scrobble_live/release_show.ex

@@ -38,7 +38,6 @@ defmodule MusicLibraryWeb.ScrobbleLive.ReleaseShow do
         release_id={@release_id}
         show_print?={false}
         timezone={@timezone}
-        on_release_loaded={:release_loaded}
       />
     </Layouts.app>
     """
@@ -65,7 +64,7 @@ defmodule MusicLibraryWeb.ScrobbleLive.ReleaseShow do
   end
 
   @impl true
-  def handle_info({:release_loaded, release}, socket) do
+  def handle_info({MusicLibraryWeb.Components.Release, {:loaded, release}}, socket) do
     {:noreply, assign(socket, :page_title, page_title(release))}
   end