Show how many years ago for "On this day" records

lib/music_library/records/record.ex

@@ -82,6 +82,21 @@ defmodule MusicLibrary.Records.Record do
     end
   end
 
+  def released_how_long_ago?(%{release_date: nil}, _current_day), do: nil
+
+  def released_how_long_ago?(record, current_day) do
+    case Date.from_iso8601(record.release_date) do
+      {:ok, release_date} ->
+        # approximate calculation of "how many years ago",
+        # we don't really care about leap years
+        diff_days = Date.diff(current_day, release_date)
+        div(diff_days, 365)
+
+      _error ->
+        nil
+    end
+  end
+
   def releases(record) do
     record.musicbrainz_data
     |> ReleaseGroup.releases()

lib/music_library_web/components/stats_components.ex

@@ -85,7 +85,7 @@ defmodule MusicLibraryWeb.StatsComponents do
 
   attr :record_show_path, :any, required: true
   attr :records, :list, required: true
-  attr :current_date, Date, required: false, default: nil
+  attr :current_date, Date, required: true
 
   def records_on_this_day(assigns) do
     ~H"""
@@ -129,10 +129,11 @@ defmodule MusicLibraryWeb.StatsComponents do
               {record.title}
             </h2>
             <p class="mt-1 text-xs leading-5 text-zinc-500 dark:text-zinc-400">
-              {Records.Record.format_release_date(record.release_date)}
+              {ngettext(
-              <span :if={@current_date && !Records.Record.released?(record, @current_date)}>
+                "1 year ago",
-                ({gettext("Unreleased")})
+                "%{count} years ago",
-              </span>
+                Records.Record.released_how_long_ago?(record, @current_date)
+              )}
             </p>
             <p class="sm:hidden mt-1 text-xs leading-5 text-zinc-500 dark:text-zinc-400">
               {format_label(record.format)} · {type_label(record.type)}

lib/music_library_web/live/stats_live/index.ex

@@ -9,11 +9,12 @@ defmodule MusicLibraryWeb.StatsLive.Index do
   alias MusicLibraryWeb.StatsLive.{TopAlbums, TopArtists}
 
   def mount(_params, _session, socket) do
+    current_date = Date.utc_today()
     latest_record = Collection.get_latest_record!()
     recent_tracks = LastFm.get_scrobbled_tracks()
     records_by_artists = Collection.count_records_by_artist(limit: 20)
     records_by_genre = Collection.count_records_by_genre(limit: 20)
-    records_on_this_day = Collection.get_records_on_this_day()
+    records_on_this_day = Collection.get_records_on_this_day(current_date)
 
     if connected?(socket) do
       LastFm.subscribe_to_feed()
@@ -32,6 +33,7 @@ defmodule MusicLibraryWeb.StatsLive.Index do
      |> assign_counts()
      |> assign_scrobble_activity(recent_tracks)
      |> assign(
+       current_date: current_date,
        scrobble_activity_mode: "albums",
        latest_record: latest_record,
        page_title: gettext("Stats"),

lib/music_library_web/live/stats_live/index.html.heex

@@ -493,6 +493,7 @@
       {gettext("On This day")}
     </h1>
     <.records_on_this_day
+      current_date={@current_date}
       records={@streams.records_on_this_day}
       record_show_path={fn record -> ~p"/collection/#{record}" end}
     />

lib/music_library_web/live/wishlist_live/index.ex

@@ -17,7 +17,7 @@ defmodule MusicLibraryWeb.WishlistLive.Index do
 
   @impl true
   def mount(_params, _session, socket) do
-    current_date = DateTime.utc_now() |> DateTime.to_date()
+    current_date = Date.utc_today()
 
     {:ok,
      socket

priv/gettext/default.pot

@@ -435,7 +435,6 @@ msgid "ID"
 msgstr ""
 
 #: lib/music_library_web/components/record_components.ex
-#: lib/music_library_web/components/stats_components.ex
 #: lib/music_library_web/live/wishlist_live/show.html.heex
 #, elixir-autogen, elixir-format
 msgid "Unreleased"
@@ -1303,3 +1302,10 @@ msgstr ""
 #, elixir-autogen, elixir-format
 msgid "On This day"
 msgstr ""
+
+#: lib/music_library_web/components/stats_components.ex
+#, elixir-autogen, elixir-format
+msgid "1 year ago"
+msgid_plural "%{count} years ago"
+msgstr[0] ""
+msgstr[1] ""

priv/gettext/en/LC_MESSAGES/default.po

@@ -435,7 +435,6 @@ msgid "ID"
 msgstr ""
 
 #: lib/music_library_web/components/record_components.ex
-#: lib/music_library_web/components/stats_components.ex
 #: lib/music_library_web/live/wishlist_live/show.html.heex
 #, elixir-autogen, elixir-format
 msgid "Unreleased"
@@ -1303,3 +1302,10 @@ msgstr ""
 #, elixir-autogen, elixir-format
 msgid "On This day"
 msgstr ""
+
+#: lib/music_library_web/components/stats_components.ex
+#, elixir-autogen, elixir-format
+msgid "1 year ago"
+msgid_plural "%{count} years ago"
+msgstr[0] ""
+msgstr[1] ""