Make timezone configurable

config/config.exs

@@ -15,7 +15,10 @@ config :music_library,
   ecto_repos: [MusicLibrary.Repo, MusicLibrary.ErrorRepo],
   generators: [timestamp_type: :utc_datetime, binary_id: true]
 
-config :music_library, MusicLibraryWeb, login_password: "change me", api_token: "change me"
+config :music_library, MusicLibraryWeb,
+  login_password: "change me",
+  api_token: "change me",
+  timezone: "Europe/London"
 
 # Configures the endpoint
 config :music_library, MusicLibraryWeb.Endpoint,

config/runtime.exs

@@ -32,6 +32,10 @@ if openai_key = System.get_env("OPENAI_KEY") do
   config :music_library, OpenAI, api_key: openai_key
 end
 
+if timezone = System.get_env("TIMEZONE") do
+  config :music_library, :timezone, timezone
+end
+
 config :music_library, MusicLibrary.Repo,
   load_extensions: [
     MusicLibrary.Repo.extension_path("unicode")

fly.toml

@@ -16,6 +16,7 @@ PHX_HOST = 'music-library.claudio-ortolina.org'
 PORT = '8080'
 LAST_FM_USER = 'cloud8421'
 POOL_SIZE = '5'
+TIMEZONE = 'Europe/London'
 
 [[mounts]]
 source = 'music_library'

lib/music_library_web/live/stats_live/index.ex

@@ -10,8 +10,6 @@ defmodule MusicLibraryWeb.StatsLive.Index do
   attr :title, :string, required: true
   attr :class, :string
 
-  @timezone "Europe/London"
-
   defp album_preview(assigns) do
     ~H"""
     <div
@@ -85,6 +83,7 @@ defmodule MusicLibraryWeb.StatsLive.Index do
 
     {:ok,
      socket
+     |> assign(:timezone, resolve_timezone!())
      |> stream_configure(:recent_tracks,
        dom_id: fn track -> "track-#{track.scrobbled_at_uts}" end
      )
@@ -173,7 +172,7 @@ defmodule MusicLibraryWeb.StatsLive.Index do
       Enum.map(recent_tracks, fn t ->
         %{
           t
-          | scrobbled_at_label: localize_scrobbled_at(t.scrobbled_at_uts, @timezone)
+          | scrobbled_at_label: localize_scrobbled_at(t.scrobbled_at_uts, socket.assigns.timezone)
         }
       end)
 
@@ -272,4 +271,9 @@ defmodule MusicLibraryWeb.StatsLive.Index do
     JS.hide(to: "#actions-#{track_id}")
     |> JS.remove_class("pointer-events-none", to: "#scrobble-activity > li")
   end
+
+  defp resolve_timezone! do
+    Application.get_env(:music_library, MusicLibraryWeb)
+    |> Keyword.fetch!(:timezone)
+  end
 end