Introduce backend for reports

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

lib/mobilizon/email/user.ex

@@ -18,7 +18,7 @@ defmodule Mobilizon.Email.User do
     |> subject(
       gettext("Mobilizon: Confirmation instructions for %{instance}", instance: instance_url)
     )
-    |> put_header("Reply-To", get_config(:reply_to))
+    |> put_header("Reply-To", get_config(:email_reply_to))
     |> assign(:token, user.confirmation_token)
     |> assign(:instance, instance_url)
     |> render(:registration_confirmation)
@@ -26,7 +26,7 @@ defmodule Mobilizon.Email.User do
 
   def reset_password_email(%User{} = user, locale \\ "en") do
     Gettext.put_locale(locale)
-    instance_url = get_config(:instance)
+    instance_url = get_config(:hostname)
 
     base_email()
     |> to(user.email)
@@ -36,7 +36,7 @@ defmodule Mobilizon.Email.User do
         instance: instance_url
       )
     )
-    |> put_header("Reply-To", get_config(:reply_to))
+    |> put_header("Reply-To", get_config(:email_reply_to))
     |> assign(:token, user.reset_password_token)
     |> assign(:instance, instance_url)
     |> render(:password_reset)
@@ -45,13 +45,13 @@ defmodule Mobilizon.Email.User do
   defp base_email do
     # Here you can set a default from, default headers, etc.
     new_email()
-    |> from(Application.get_env(:mobilizon, MobilizonWeb.Endpoint)[:email_from])
+    |> from(get_config(:email_from))
     |> put_html_layout({Mobilizon.EmailView, "email.html"})
     |> put_text_layout({Mobilizon.EmailView, "email.text"})
   end
 
   @spec get_config(atom()) :: any()
   defp get_config(key) do
-    _config = Application.get_env(:mobilizon, MobilizonWeb.Endpoint) |> Keyword.get(key)
+    Mobilizon.CommonConfig.instance_config() |> Keyword.get(key)
   end
 end