From b2492a387086528598da36f11e53569c5bdb164c Mon Sep 17 00:00:00 2001
From: Thomas Citharel <tcit@tcit.fr>
Date: Thu, 17 Aug 2023 10:35:03 +0200
Subject: [PATCH] fix(backend): handle email not being sent when resending
 registration instructions

Signed-off-by: Thomas Citharel <tcit@tcit.fr>
---
 lib/graphql/resolvers/user.ex |  3 +++
 lib/web/email/mailer.ex       | 10 +++++++++-
 lib/web/email/user.ex         | 14 ++++++++++----
 3 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/lib/graphql/resolvers/user.ex b/lib/graphql/resolvers/user.ex
index 73d85e0ee..e08f413ce 100644
--- a/lib/graphql/resolvers/user.ex
+++ b/lib/graphql/resolvers/user.ex
@@ -302,6 +302,9 @@ defmodule Mobilizon.GraphQL.Resolvers.User do
       {:error, :invalid_email} ->
         {:error, dgettext("errors", "This email doesn't seem to be valid")}
 
+      {:error, :failed_sending_mail} ->
+        {:error, dgettext("errors", "Couldn't send an email. Internal error.")}
+
       {:error, :email_too_soon} ->
         {:error,
          dgettext(
diff --git a/lib/web/email/mailer.ex b/lib/web/email/mailer.ex
index 2f78477a2..90632214b 100644
--- a/lib/web/email/mailer.ex
+++ b/lib/web/email/mailer.ex
@@ -4,10 +4,18 @@ defmodule Mobilizon.Web.Email.Mailer do
   """
   use Swoosh.Mailer, otp_app: :mobilizon
   alias Mobilizon.Service.ErrorReporting.Sentry
+  require Logger
 
   @spec send_email(Swoosh.Email.t()) :: {:ok, term} | {:error, term}
   def send_email(email) do
-    Mobilizon.Web.Email.Mailer.deliver(email)
+    Logger.debug(
+      "Mailer options #{inspect(Keyword.drop(Application.get_env(:mobilizon, Mobilizon.Web.Email.Mailer), [:tls_options]))}"
+    )
+
+    Logger.debug("Sending mail, #{inspect(email)}")
+    res = Mobilizon.Web.Email.Mailer.deliver(email)
+    Logger.debug("Return from sending mail #{inspect(res)}")
+    res
   rescue
     error ->
       Sentry.capture_exception(error,
diff --git a/lib/web/email/user.ex b/lib/web/email/user.ex
index d0278d7da..6967f055b 100644
--- a/lib/web/email/user.ex
+++ b/lib/web/email/user.ex
@@ -91,13 +91,19 @@ defmodule Mobilizon.Web.Email.User do
            Users.update_user(user, %{
              "confirmation_sent_at" => DateTime.utc_now() |> DateTime.truncate(:second)
            }) do
-      send_confirmation_email(user, locale)
-      Logger.info("Sent confirmation email again to #{user.email}")
-      {:ok, user.email}
+      case send_confirmation_email(user, locale) do
+        {:ok, _} ->
+          Logger.info("Sent confirmation email again to #{user.email}")
+          {:ok, user.email}
+
+        {:error, err} ->
+          Logger.error("Failed sending email to #{user.email}. #{inspect(err)}")
+          {:error, :failed_sending_mail}
+      end
     end
   end
 
-  @spec send_confirmation_email(User.t(), String.t()) :: Swoosh.Email.t()
+  @spec send_confirmation_email(User.t(), String.t()) :: {:ok, term} | {:error, term}
   def send_confirmation_email(%User{} = user, locale \\ "en") do
     user
     |> Email.User.confirmation_email(locale)