Expose group physical address to AP

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

lib/federation/activity_stream/converter/utils.ex

@@ -3,14 +3,16 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Utils do
   Various utils for converters.
   """
 
-  alias Mobilizon.{Actors, Events}
+  alias Mobilizon.{Actors, Addresses, Events}
   alias Mobilizon.Actors.Actor
+  alias Mobilizon.Addresses.Address
   alias Mobilizon.Events.Tag
   alias Mobilizon.Medias.Media
   alias Mobilizon.Mention
   alias Mobilizon.Storage.Repo
 
   alias Mobilizon.Federation.ActivityPub.Actor, as: ActivityPubActor
+  alias Mobilizon.Federation.ActivityStream.Converter.Address, as: AddressConverter
   alias Mobilizon.Federation.ActivityStream.Converter.Media, as: MediaConverter
 
   alias Mobilizon.Web.Endpoint
@@ -252,4 +254,42 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Utils do
   defp get_banner_picture(attachments) do
     Enum.find(attachments, &(&1["type"] == "Document" && &1["name"] == @banner_picture_name))
   end
+
+  @spec get_address(map | binary | nil) :: Address.t() | nil
+  def get_address(address_url) when is_binary(address_url) do
+    get_address(%{"id" => address_url})
+  end
+
+  def get_address(%{"id" => url} = map) when is_map(map) and is_binary(url) do
+    Logger.debug("Address with an URL, let's check against our own database")
+
+    case Addresses.get_address_by_url(url) do
+      %Address{} = address ->
+        address
+
+      _ ->
+        Logger.debug("not in our database, let's try to create it")
+        map = Map.put(map, "url", map["id"])
+        do_get_address(map)
+    end
+  end
+
+  def get_address(map) when is_map(map) do
+    do_get_address(map)
+  end
+
+  def get_address(nil), do: nil
+
+  @spec do_get_address(map) :: Address.t() | nil
+  defp do_get_address(map) do
+    map = AddressConverter.as_to_model_data(map)
+
+    case Addresses.create_address(map) do
+      {:ok, %Address{} = address} ->
+        address
+
+      _ ->
+        nil
+    end
+  end
 end