feat: create domain event interfaces

src/domain/event/@shared/event-dispatcher-interface.ts

@@ -0,0 +1,9 @@
+import { EventHandlerInterface } from './event-handler-interface'
+import { EventInterface } from './event-interface'
+
+export interface EventDispatcherInterface {
+  notify: (event: EventInterface) => void
+  register: (eventName: string, eventHandler: EventHandlerInterface) => void
+  unregister: (eventName: string, eventHandler: EventHandlerInterface) => void
+  unregisterAll: () => void
+}

src/domain/event/@shared/event-handler-interface.ts

@@ -0,0 +1,8 @@
+import { EventInterface } from './event-interface'
+// todo event handler tem que receber um evento
+// vamos garantir que é do tipo EventInterface
+// com o uso do generic <T>
+// com valor padrão sendo EventInterface
+export interface EventHandlerInterface<T extends EventInterface=EventInterface> {
+  handler: (event: T) => void
+}

src/domain/event/@shared/event-interface.ts

@@ -0,0 +1,4 @@
+export interface EventInterface {
+  dataTimeOccurred: Date
+  eventData: any
+}