Use user timezone in emails

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

lib/web/email/event.ex

@@ -13,7 +13,7 @@ defmodule Mobilizon.Web.Email.Event do
   alias Mobilizon.Events
   alias Mobilizon.Events.{Event, Participant}
   alias Mobilizon.Storage.Repo
-  alias Mobilizon.Users.User
+  alias Mobilizon.Users.{Setting, User}
 
   alias Mobilizon.Web.Email
   alias Mobilizon.Web.Gettext, as: GettextBackend
@@ -28,6 +28,7 @@ defmodule Mobilizon.Web.Email.Event do
         %Event{} = old_event,
         %Event{} = event,
         changes,
+        timezone \\ "Etc/UTC",
         locale \\ "en"
       ) do
     GettextBackend.put_locale(locale)
@@ -44,6 +45,7 @@ defmodule Mobilizon.Web.Email.Event do
     |> assign(:old_event, old_event)
     |> assign(:changes, changes)
     |> assign(:subject, subject)
+    |> assign(:timezone, timezone)
     |> render(:event_updated)
   end
 
@@ -75,18 +77,42 @@ defmodule Mobilizon.Web.Email.Event do
 
   defp send_notification_for_event_update_to_participant(
          {%Participant{} = _participant, %Actor{} = actor,
-          %User{locale: locale, email: email} = _user},
+          %User{locale: locale, email: email} = _user, %Setting{timezone: timezone}},
          %Event{} = old_event,
          %Event{} = event,
          diff
        ) do
-    email
-    |> Email.Event.event_updated(actor, old_event, event, diff, locale)
-    |> Email.Mailer.deliver_later()
+    do_send_notification_for_event_update_to_participant(
+      email,
+      actor,
+      old_event,
+      event,
+      diff,
+      timezone,
+      locale
+    )
   end
 
   defp send_notification_for_event_update_to_participant(
-         {%Participant{metadata: %{email: email}} = _participant, %Actor{} = actor, nil},
+         {%Participant{} = _participant, %Actor{} = actor,
+          %User{locale: locale, email: email} = _user, nil},
+         %Event{} = old_event,
+         %Event{} = event,
+         diff
+       ) do
+    do_send_notification_for_event_update_to_participant(
+      email,
+      actor,
+      old_event,
+      event,
+      diff,
+      "Etc/UTC",
+      locale
+    )
+  end
+
+  defp send_notification_for_event_update_to_participant(
+         {%Participant{metadata: %{email: email}} = _participant, %Actor{} = actor, nil, nil},
          %Event{} = old_event,
          %Event{} = event,
          diff
@@ -94,8 +120,28 @@ defmodule Mobilizon.Web.Email.Event do
        when not is_nil(email) do
     locale = Gettext.get_locale()
 
+    do_send_notification_for_event_update_to_participant(
+      email,
+      actor,
+      old_event,
+      event,
+      diff,
+      "Etc/UTC",
+      locale
+    )
+  end
+
+  defp do_send_notification_for_event_update_to_participant(
+         email,
+         actor,
+         old_event,
+         event,
+         diff,
+         timezone,
+         locale
+       ) do
     email
-    |> Email.Event.event_updated(actor, old_event, event, diff, locale)
+    |> Email.Event.event_updated(actor, old_event, event, diff, timezone, locale)
     |> Email.Mailer.deliver_later()
   end
 end