Move mailer from Bamboo to Swoosh

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

lib/web/email/email.ex

@@ -3,49 +3,29 @@ defmodule Mobilizon.Web.Email do
   The Email context.
   """
 
-  use Bamboo.Phoenix, view: Mobilizon.Web.EmailView
+  use Phoenix.Swoosh, view: Mobilizon.Web.EmailView, layout: {Mobilizon.Web.EmailView, :email}
 
   alias Mobilizon.{Config, Events}
   alias Mobilizon.Events.Event
   alias Mobilizon.Service.Export.ICalendar
   alias Mobilizon.Web.EmailView
 
-  @spec base_email(keyword()) :: Bamboo.Email.t()
+  @spec base_email(keyword()) :: Swoosh.Email.t()
   def base_email(args) do
-    args
-    |> new_email()
+    [reply_to: Config.instance_email_reply_to() || Config.instance_email_from()]
+    |> Keyword.merge(args)
+    |> new()
     |> from({Config.instance_name(), Config.instance_email_from()})
-    |> put_header("Reply-To", Config.instance_email_reply_to())
-    |> maybe_put_date_header()
-    |> maybe_put_message_id()
     |> assign(:jsonLDMetadata, nil)
     |> assign(:instance_name, Config.instance_name())
     |> assign(:offer_unsupscription, true)
-    |> put_html_layout({EmailView, "email.html"})
-    |> put_text_layout({EmailView, "email.text"})
+    |> put_layout({EmailView, :email})
   end
 
-  # Generating an UUID randomly causes Bamboo.Test.assert_delivered_email/1 to fail
-  defp maybe_put_message_id(email) do
-    if Application.fetch_env!(:mobilizon, :env) == :test do
-      put_header(email, "Message-Id", "TEST_ENV_MESSAGE_ID@#{Config.instance_hostname()}")
-    else
-      email
-    end
-  end
-
-  defp maybe_put_date_header(email) do
-    if Application.fetch_env!(:mobilizon, :env) == :test do
-      put_header(email, "Date", "REMOVED FOR TESTING")
-    else
-      email
-    end
-  end
-
-  def add_event_attachment(%Bamboo.Email{} = email, %Event{id: event_id}) do
+  def add_event_attachment(%Swoosh.Email{} = email, %Event{id: event_id}) do
     with {:ok, %Event{} = event} <- Events.get_event_with_preload(event_id),
          {:ok, event_ics_data} <- ICalendar.export_event(event) do
-      put_attachment(email, %Bamboo.Attachment{
+      attachment(email, %Swoosh.Attachment{
         filename: "#{Slugger.slugify_downcase(event.title)}.ics",
         content_type: "text/calendar",
         data: event_ics_data