Work on actors

* Implement group GraphQL APIs
* Change Actors changeset to properly set urls
* Remove old actors indexes and add some new ones

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

lib/mobilizon_web/resolvers/group.ex

@@ -0,0 +1,55 @@
+defmodule MobilizonWeb.Resolvers.Group do
+  alias Mobilizon.Actors
+  alias Mobilizon.Actors.{Actor}
+  alias Mobilizon.Service.ActivityPub
+  require Logger
+
+  @doc """
+  Find a group
+  """
+  def find_group(_parent, %{preferred_username: name}, _resolution) do
+    case ActivityPub.find_or_make_group_from_nickname(name) do
+      {:ok, actor} ->
+        {:ok, actor}
+
+      _ ->
+        {:error, "Group with name #{name} not found"}
+    end
+  end
+
+  @doc """
+  Lists all groups
+  """
+  def list_groups(_parent, _args, _resolution) do
+    {:ok, Actors.list_groups}
+  end
+
+  @doc """
+  Create a new group. The creator is automatically added as admin
+  """
+  def create_group(
+        _parent,
+        %{preferred_username: preferred_username, creator_username: actor_username},
+        %{
+          context: %{current_user: user}
+        }
+      ) do
+
+    with %Actor{id: actor_id} <- Actors.get_local_actor_by_name(actor_username),
+         {:user_actor, true} <-
+           {:user_actor, actor_id in Enum.map(Actors.get_actors_for_user(user), & &1.id)},
+        {:ok, %Actor{} = group} <- Actors.create_group(%{preferred_username: preferred_username}) do
+          {:ok, group}
+    else
+      {:error, %Ecto.Changeset{errors: [url: {"has already been taken", []}]}} ->
+        {:error, :group_name_not_available}
+      err ->
+        Logger.error(inspect(err))
+        err
+    end
+  end
+
+  def create_group(_parent, _args, _resolution) do
+    {:error, "You need to be logged-in to create a group"}
+  end
+end

lib/mobilizon_web/resolvers/person.ex

@@ -1,7 +1,8 @@
-defmodule MobilizonWeb.Resolvers.Actor do
+defmodule MobilizonWeb.Resolvers.Person do
   alias Mobilizon.Actors
   alias Mobilizon.Service.ActivityPub
 
+  @deprecated "Use find_person/3 or find_group/3 instead"
   def find_actor(_parent, %{preferred_username: name}, _resolution) do
     case ActivityPub.find_or_make_actor_from_nickname(name) do
       {:ok, actor} ->
@@ -25,19 +26,6 @@ defmodule MobilizonWeb.Resolvers.Actor do
     end
   end
 
-  @doc """
-  Find a person
-  """
-  def find_group(_parent, %{preferred_username: name}, _resolution) do
-    case ActivityPub.find_or_make_group_from_nickname(name) do
-      {:ok, actor} ->
-        {:ok, actor}
-
-      _ ->
-        {:error, "Group with name #{name} not found"}
-    end
-  end
-
   @doc """
   Returns the current actor for the currently logged-in user
   """