Refactor event bus and queue system; detect cycles in DI realization and make

src/auth/serial/AuthenticationEventSerializer.ts

@@ -0,0 +1,54 @@
+import {BaseSerializer, ObjectSerializer, SerialPayload} from '../../support/bus'
+import {AuthenticationEvent} from '../event/AuthenticationEvent'
+import {ErrorWithContext, JSONState} from '../../util'
+import {Authenticatable} from '../types'
+import {StaticInstantiable} from '../../di'
+import {SecurityContext} from '../context/SecurityContext'
+import {UserAuthenticatedEvent} from '../event/UserAuthenticatedEvent'
+import {UserAuthenticationResumedEvent} from '../event/UserAuthenticationResumedEvent'
+import {UserFlushedEvent} from '../event/UserFlushedEvent'
+
+export interface AuthenticationEventSerialPayload extends JSONState {
+    user: SerialPayload<Authenticatable, JSONState>
+    eventName: string
+}
+
+@ObjectSerializer()
+export class AuthenticationEventSerializer extends BaseSerializer<AuthenticationEvent, AuthenticationEventSerialPayload> {
+    protected async decodeSerial(serial: AuthenticationEventSerialPayload): Promise<AuthenticationEvent> {
+        const user = await this.getSerialization().decode(serial.user)
+        const context = await this.getRequest().make(SecurityContext)
+
+        const EventClass = this.getEventClass(serial.eventName)
+        return new EventClass(user, context)
+    }
+
+    protected async encodeActual(actual: AuthenticationEvent): Promise<AuthenticationEventSerialPayload> {
+        return {
+            eventName: actual.eventName,
+            user: await this.getSerialization().encode(actual.user),
+        }
+    }
+
+    protected getName(): string {
+        return '@extollo/lib:AuthenticationEventSerializer'
+    }
+
+    matchActual(some: AuthenticationEvent): boolean {
+        return some instanceof AuthenticationEvent
+    }
+
+    protected getEventClass(name: string): StaticInstantiable<AuthenticationEvent> {
+        if ( name === '@extollo/lib:UserAuthenticatedEvent' ) {
+            return UserAuthenticatedEvent
+        } else if ( name === '@extollo/lib:UserAuthenticationResumedEvent' ) {
+            return UserAuthenticationResumedEvent
+        } else if ( name === '@extollo/lib:UserFlushedEvent' ) {
+            return UserFlushedEvent
+        }
+
+        throw new ErrorWithContext('Unable to map event name to AuthenticationEvent implementation', {
+            eventName: name,
+        })
+    }
+}