Refactor Mobilizon.Federation.ActivityPub and add typespecs

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

lib/mobilizon/events/event.ex

@@ -35,7 +35,7 @@ defmodule Mobilizon.Events.Event do
   alias Mobilizon.Web.Router.Helpers, as: Routes
 
   @type t :: %__MODULE__{
-          id: String.t(),
+          id: integer(),
           url: String.t(),
           local: boolean,
           begins_on: DateTime.t(),
@@ -47,16 +47,16 @@ defmodule Mobilizon.Events.Event do
           draft: boolean,
           visibility: EventVisibility.t(),
           join_options: JoinOptions.t(),
-          publish_at: DateTime.t(),
+          publish_at: DateTime.t() | nil,
           uuid: Ecto.UUID.t(),
-          online_address: String.t(),
+          online_address: String.t() | nil,
           phone_address: String.t(),
           category: String.t(),
           options: EventOptions.t(),
           organizer_actor: Actor.t(),
           attributed_to: Actor.t() | nil,
-          physical_address: Address.t(),
-          picture: Media.t(),
+          physical_address: Address.t() | nil,
+          picture: Media.t() | nil,
           media: [Media.t()],
           tracks: [Track.t()],
           sessions: [Session.t()],

lib/mobilizon/events/events.ex

@@ -282,7 +282,7 @@ defmodule Mobilizon.Events do
 
   # We start by inserting the event and then insert a first participant if the event is not a draft
   @spec do_create_event(map) ::
-          {:ok, Event.t()}
+          {:ok, %{insert: Event.t(), write: Participant.t() | nil}}
           | {:error, Changeset.t()}
           | {:error, :update | :write, Changeset.t(), map()}
   defp do_create_event(attrs) do
@@ -368,7 +368,7 @@ defmodule Mobilizon.Events do
   Deletes an event.
   Raises an exception if it fails.
   """
-  @spec delete_event(Event.t()) :: Event.t()
+  @spec delete_event!(Event.t()) :: Event.t()
   def delete_event!(%Event{} = event), do: Repo.delete!(event)
 
   @doc """
@@ -457,6 +457,7 @@ defmodule Mobilizon.Events do
 
   @spec list_organized_events_for_group(
           Actor.t(),
+          EventVisibility.t(),
           DateTime.t() | nil,
           DateTime.t() | nil,
           integer | nil,

lib/mobilizon/events/participant.ex

@@ -15,6 +15,7 @@ defmodule Mobilizon.Events.Participant do
   alias Mobilizon.Web.Endpoint
 
   @type t :: %__MODULE__{
+          id: String.t(),
           role: ParticipantRole.t(),
           url: String.t(),
           event: Event.t(),