Add basic metadata to opengraph preview

Also refactor datetime & address utils

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/web/views/email_view.ex

@@ -1,39 +1,15 @@
 defmodule Mobilizon.Web.EmailView do
   use Mobilizon.Web, :view
 
-  alias Cldr.DateTime.Relative
+  alias Mobilizon.Service.DateTime, as: DateTimeRenderer
   import Mobilizon.Web.Gettext
 
-  def datetime_to_string(%DateTime{} = datetime, locale \\ "en", format \\ :medium) do
-    with {:ok, string} <-
-           Mobilizon.Cldr.DateTime.to_string(datetime, format: format, locale: locale) do
-      string
-    end
-  end
+  defdelegate datetime_to_string(datetime, locale \\ "en", format \\ :medium),
+    to: DateTimeRenderer
 
-  def datetime_to_time_string(%DateTime{} = datetime, locale \\ "en", format \\ :hm) do
-    with {:ok, string} <-
-           Mobilizon.Cldr.DateTime.to_string(datetime, format: format, locale: locale) do
-      string
-    end
-  end
+  defdelegate datetime_to_time_string(datetime, locale \\ "en", format \\ :short),
+    to: DateTimeRenderer
 
-  @spec datetime_tz_convert(DateTime.t(), String.t()) :: DateTime.t()
-  def datetime_tz_convert(%DateTime{} = datetime, timezone) do
-    case DateTime.shift_zone(datetime, timezone) do
-      {:ok, datetime_with_user_tz} ->
-        datetime_with_user_tz
-
-      _ ->
-        datetime
-    end
-  end
-
-  @spec datetime_relative(DateTime.t(), String.t()) :: String.t()
-  def datetime_relative(%DateTime{} = datetime, locale \\ "en") do
-    Relative.to_string!(datetime, Mobilizon.Cldr,
-      relative_to: DateTime.utc_now(),
-      locale: locale
-    )
-  end
+  defdelegate datetime_tz_convert(datetime, timezone), to: DateTimeRenderer
+  defdelegate datetime_relative(datetime, locale \\ "en"), to: DateTimeRenderer
 end