WIP

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

lib/service/notifier/notifier.ex

@@ -0,0 +1,31 @@
+defmodule Mobilizon.Service.Notifier do
+  @moduledoc """
+  Behaviour for notifiers
+  """
+  alias Mobilizon.Activities.Activity
+  alias Mobilizon.Config
+  alias Mobilizon.Users.User
+
+  @doc """
+  Whether the notifier is enabled and configured
+  """
+  @callback ready?() :: boolean()
+
+  @doc """
+  Sends one or multiple notifications from an activity
+  """
+  @callback send(User.t(), Activity.t()) :: {:ok, any()} | {:error, String.t()}
+
+  @callback send(User.t(), list(Activity.t())) :: {:ok, any()} | {:error, String.t()}
+
+  def notify(%User{} = user, %Activity{} = activity, opts \\ []) do
+    Enum.each(providers(opts), & &1.send(user, activity))
+  end
+
+  @spec providers(Keyword.t()) :: list()
+  defp providers(opts) do
+    opts
+    |> Keyword.get(:notifiers, Config.get([__MODULE__, :notifiers]))
+    |> Enum.filter(& &1.ready?())
+  end
+end