Merge pull request #544 from podlove/task/refactor-abstract-event

Refactor AbstractEvent module.

lib/radiator/event_store.ex

@@ -4,14 +4,14 @@ defmodule Radiator.EventStore do
   """
 
   alias Radiator.EventStore.EventData
-  alias Radiator.Outline.Event.AbstractEvent
+  alias Radiator.Outline.Event
   alias Radiator.Repo
 
   def persist_event(event) do
     {:ok, _stored_event} =
       create_event_data(%{
-        data: AbstractEvent.payload(event),
-        event_type: AbstractEvent.event_type(event),
+        data: Event.payload(event),
+        event_type: Event.event_type(event),
         uuid: convert_to_uuid(event.uuid),
         user_id: event.user_id
       })

lib/radiator/outline/event.ex

@@ -0,0 +1,49 @@
+defmodule Radiator.Outline.Event do
+  @moduledoc """
+  Event is a module that provides helper base functions do work with events.
+  """
+
+  alias Radiator.Outline.Event.{
+    NodeContentChangedEvent,
+    NodeDeletedEvent,
+    NodeInsertedEvent,
+    NodeMovedEvent
+  }
+
+  def payload(%NodeInsertedEvent{} = event) do
+    %{
+      node_id: event.node.uuid,
+      content: event.node.content,
+      parent_id: event.node.parent_id,
+      prev_id: event.node.prev_id,
+      next_id: event.next_id
+    }
+  end
+
+  def payload(%NodeContentChangedEvent{} = event) do
+    %{node_id: event.node_id, content: event.content}
+  end
+
+  def payload(%NodeDeletedEvent{} = event) do
+    %{node_id: event.node_id}
+  end
+
+  def payload(%NodeMovedEvent{} = event) do
+    %{
+      node_id: event.node_id,
+      parent_id: event.parent_id,
+      prev_id: event.prev_id,
+      old_prev_id: event.old_prev_id,
+      old_next_id: event.old_next_id,
+      next_id: event.next_id
+    }
+  end
+
+  def event_type(%NodeInsertedEvent{} = _event), do: "NodeInsertedEvent"
+
+  def event_type(%NodeContentChangedEvent{} = _event), do: "NodeContentChangedEvent"
+
+  def event_type(%NodeDeletedEvent{} = _event), do: "NodeDeletedEvent"
+
+  def event_type(%NodeMovedEvent{} = _event), do: "NodeMovedEvent"
+end