refactor(server): remove unused on method

server/src/interfaces/event.interface.ts

@@ -88,7 +88,6 @@ export type EventItem<T extends EmitEvent> = {
 
 export interface IEventRepository {
   setup(options: { services: ClassConstructor<unknown>[] }): void;
-  on<T extends keyof EventMap>(item: EventItem<T>): void;
   emit<T extends keyof EventMap>(event: T, ...args: ArgsOf<T>): Promise<void>;
 
   /**

server/src/repositories/event.repository.ts

@@ -57,7 +57,6 @@ export class EventRepository implements OnGatewayConnection, OnGatewayDisconnect
 
   setup({ services }: { services: ClassConstructor<unknown>[] }) {
     const reflector = this.moduleRef.get(Reflector, { strict: false });
-    const repository = this.moduleRef.get<IEventRepository>(IEventRepository);
     const items: Item<EmitEvent>[] = [];
 
     // discovery
@@ -94,7 +93,7 @@ export class EventRepository implements OnGatewayConnection, OnGatewayDisconnect
 
     // register by priority
     for (const handler of handlers) {
-      repository.on(handler);
+      this.addHandler(handler);
     }
   }
 
@@ -134,7 +133,7 @@ export class EventRepository implements OnGatewayConnection, OnGatewayDisconnect
     await client.leave(client.nsp.name);
   }
 
-  on<T extends EmitEvent>(item: EventItem<T>): void {
+  private addHandler<T extends EmitEvent>(item: EventItem<T>): void {
     const event = item.event;
 
     if (!this.emitHandlers[event]) {

server/test/repositories/event.repository.mock.ts

@@ -4,7 +4,6 @@ import { Mocked, vitest } from 'vitest';
 export const newEventRepositoryMock = (): Mocked<IEventRepository> => {
   return {
     setup: vitest.fn(),
-    on: vitest.fn() as any,
     emit: vitest.fn() as any,
     clientSend: vitest.fn() as any,
     clientBroadcast: vitest.fn() as any,