Send announcement notifications to anonymous participants

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

lib/mobilizon/events/events.ex

@@ -1611,6 +1611,19 @@ defmodule Mobilizon.Events do
     |> select([p, a, u, s], {p, a, u, s})
   end
 
+  @doc """
+  List anonymous participations to an event
+  """
+  @spec list_anonymous_participants_for_event(String.t()) :: [Participant.t()]
+  def list_anonymous_participants_for_event(event_id) do
+    Participant
+    |> where(
+      [p],
+      p.event_id == ^event_id and p.role not in [^:not_approved, ^:not_confirmed, ^:rejected]
+    )
+    |> Repo.all()
+  end
+
   @spec list_participations_for_user_query(integer()) :: Ecto.Query.t()
   defp list_participations_for_user_query(user_id) do
     from(

lib/service/notifier/email.ex

@@ -51,6 +51,18 @@ defmodule Mobilizon.Service.Notifier.Email do
     end
   end
 
+  @doc """
+  Send an anonymous activity directly to an email, for anonymous participants for instance
+  """
+  @spec send_anonymous_activity(String.t(), Activity.t(), Keyword.t()) :: {:ok, :sent}
+  def send_anonymous_activity(email, %Activity{} = activity, options) do
+    email
+    |> EmailActivity.anonymous_activity(activity, options)
+    |> Mailer.send_email()
+
+    {:ok, :sent}
+  end
+
   # These notifications are using LegacyNotifierBuilder and don't have any history,
   # so we always send them directly, as long as the setting isn't none
   @always_direct_subjects [

lib/service/workers/legacy_notifier_builder.ex

@@ -6,7 +6,7 @@ defmodule Mobilizon.Service.Workers.LegacyNotifierBuilder do
   alias Mobilizon.Activities.Activity
   alias Mobilizon.{Actors, Events, Users}
   alias Mobilizon.Actors.Actor
-  alias Mobilizon.Events.Event
+  alias Mobilizon.Events.{Event, Participant}
   alias Mobilizon.Service.Notifier
 
   use Mobilizon.Service.Workers.Helper, queue: "activity"
@@ -16,6 +16,10 @@ defmodule Mobilizon.Service.Workers.LegacyNotifierBuilder do
     with {"legacy_notify", args} <- Map.pop(args, "op") do
       activity = build_activity(args)
 
+      if args["subject"] == "participation_event_comment" do
+        notify_anonymous_participants(get_in(args, ["subject_params", "event_id"]), activity)
+      end
+
       args
       |> users_to_notify(author_id: args["author_id"], group_id: Map.get(args, "group_id"))
       |> Enum.each(&Notifier.notify(&1, activity, single_activity: true))
@@ -91,4 +95,20 @@ defmodule Mobilizon.Service.Workers.LegacyNotifierBuilder do
     |> Enum.uniq()
     |> Enum.map(&Users.get_user_with_settings!/1)
   end
+
+  defp notify_anonymous_participants(nil, _activity), do: :ok
+
+  defp notify_anonymous_participants(event_id, activity) do
+    event_id
+    |> Events.list_anonymous_participants_for_event()
+    |> Enum.filter(fn %Participant{metadata: metadata} ->
+      is_map(metadata) && is_binary(metadata.email)
+    end)
+    |> Enum.map(fn %Participant{metadata: metadata} -> metadata end)
+    |> Enum.map(fn metadata ->
+      Notifier.Email.send_anonymous_activity(metadata.email, activity,
+        locale: Map.get(metadata, :locale, "en")
+      )
+    end)
+  end
 end

lib/web/email/activity.ex

@@ -38,6 +38,24 @@ defmodule Mobilizon.Web.Email.Activity do
     |> render(:email_direct_activity)
   end
 
+  @spec anonymous_activity(String.t(), Activity.t(), Keyword.t()) :: Bamboo.Email.t()
+  def anonymous_activity(email, %Activity{subject_params: subject_params} = activity, options) do
+    locale = Keyword.get(options, :locale, "en")
+
+    subject =
+      dgettext(
+        "activity",
+        "Announcement for your event %{event}",
+        event: subject_params["event_title"]
+      )
+
+    Email.base_email(to: email, subject: subject)
+    |> assign(:subject, subject)
+    |> assign(:activity, activity)
+    |> assign(:locale, locale)
+    |> render(:email_anonymous_activity)
+  end
+
   @spec chunk_activities(list()) :: map()
   defp chunk_activities(activities) do
     activities

lib/web/templates/email/email_anonymous_activity.html.eex

@@ -0,0 +1,83 @@
+<!-- HERO -->
+<tr>
+  <td bgcolor="#474467" align="center" style="padding: 0px 10px 0px 10px;">
+    <!--[if (gte mso 9)|(IE)]>
+      <table align="center" border="0" cellspacing="0" cellpadding="0" width="600">
+        <tr>
+          <td align="center" valign="top" width="600">
+    <![endif]-->
+    <table border="0" cellpadding="0" cellspacing="0" width="100%" style="max-width: 600px;" >
+      <tr>
+        <td bgcolor="#ffffff" align="center" valign="top" style="padding: 40px 20px 20px 20px; border-radius: 4px 4px 0px 0px; color: #3A384C; font-family: 'Roboto', Helvetica, Arial, sans-serif; font-size: 48px; font-weight: 400; line-height: 48px;">
+          <h1 style="font-size: 48px; font-weight: 400; margin: 0;">
+            <%= @subject %>
+          </h1>
+        </td>
+      </tr>
+    </table>
+    <!--[if (gte mso 9)|(IE)]>
+    </td>
+  </tr>
+</table>
+    <![endif]-->
+  </td>
+</tr>
+<!-- COPY BLOCK -->
+<tr>
+  <td bgcolor="#E6E4F4" align="center" style="padding: 0px 10px 0px 10px;">
+    <!--[if (gte mso 9)|(IE)]>
+      <table align="center" border="0" cellspacing="0" cellpadding="0" width="600">
+        <tr>
+          <td align="center" valign="top" width="600">
+    <![endif]-->
+    <table border="0" cellpadding="0" cellspacing="0" width="100%" style="max-width: 600px;" >
+      <!-- COPY -->
+      <tr>
+        <td bgcolor="#ffffff" align="left">
+          <table width="100%" border="0" cellspacing="0" cellpadding="0">
+            <tr>
+              <td align="center" style="border-radius: 3px; text-align: left; padding: 10px 5% 0px 30px; color: #474467; font-family: 'Roboto', Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 400;line-height: 25px;" >
+                <%= 
+                  dgettext("activity", "%{profile} has posted an announcement under event %{event}.", 
+                    %{
+                        profile: "<b>#{Mobilizon.Actors.Actor.display_name_and_username(@activity.author)}</b>",
+                        event: "<a href=\"#{
+                            page_url(
+                                Mobilizon.Web.Endpoint,
+                                :event,
+                                @activity.subject_params["event_uuid"]
+                            ) |> URI.decode()}\">
+                                #{@activity.subject_params["event_title"]}
+                            </a>"
+                    }
+                ) |> raw %>
+              </td>
+            </tr>
+          </table>
+        </td>
+      </tr>
+      <tr>
+        <td bgcolor="#ffffff" align="left">
+          <table width="100%" border="0" cellspacing="0" cellpadding="0">
+            <tr>
+              <td bgcolor="#ffffff" align="center" style="padding: 20px 30px 60px 30px;">
+                <table border="0" cellspacing="0" cellpadding="0">
+                  <tr>
+                    <td align="center" style="border-radius: 3px;" bgcolor="#3C376E"><a href="<%= page_url(Mobilizon.Web.Endpoint, :event, @activity.subject_params["event_uuid"]) %>" target="_blank" style="font-size: 20px; font-family: Helvetica, Arial, sans-serif; color: #ffffff; text-decoration: none; padding: 15px 25px; border-radius: 2px; border: 1px solid #3C376E; display: inline-block;">
+                        <%= gettext "Visit event page" %>
+                      </a></td>
+                  </tr>
+                </table>
+              </td>
+            </tr>
+          </table>
+        </td>
+      </tr>
+    </table>
+    <!--[if (gte mso 9)|(IE)]>
+    </td>
+  </tr>
+</table>
+    <![endif]-->
+  </td>
+</tr>

lib/web/templates/email/email_anonymous_activity.text.eex

@@ -0,0 +1,11 @@
+<%= @subject %>
+
+==
+
+<%= dgettext("activity", "%{profile} has posted an announcement under event %{event}.",
+    %{
+        profile: Mobilizon.Actors.Actor.display_name_and_username(@activity.author),
+        event: @activity.subject_params["event_title"]
+    }
+) %>
+<%= page_url(Mobilizon.Web.Endpoint, :event, @activity.subject_params["event_uuid"]) |> URI.decode() %>