refactor(server): app module (#13193)

server/src/utils/events.ts

@@ -1,62 +0,0 @@
-import { ModuleRef, Reflector } from '@nestjs/core';
-import _ from 'lodash';
-import { EventConfig } from 'src/decorators';
-import { MetadataKey } from 'src/enum';
-import { EmitEvent, EmitHandler, IEventRepository } from 'src/interfaces/event.interface';
-import { services } from 'src/services';
-
-type Item<T extends EmitEvent> = {
-  event: T;
-  handler: EmitHandler<T>;
-  priority: number;
-  server: boolean;
-  label: string;
-};
-
-export class ImmichStartupError extends Error {}
-export const isStartUpError = (error: unknown): error is ImmichStartupError => error instanceof ImmichStartupError;
-
-export const setupEventHandlers = (moduleRef: ModuleRef) => {
-  const reflector = moduleRef.get(Reflector, { strict: false });
-  const repository = moduleRef.get<IEventRepository>(IEventRepository);
-  const items: Item<EmitEvent>[] = [];
-
-  // discovery
-  for (const Service of services) {
-    const instance = moduleRef.get<any>(Service);
-    const ctx = Object.getPrototypeOf(instance);
-    for (const property of Object.getOwnPropertyNames(ctx)) {
-      const descriptor = Object.getOwnPropertyDescriptor(ctx, property);
-      if (!descriptor || descriptor.get || descriptor.set) {
-        continue;
-      }
-
-      const handler = instance[property];
-      if (typeof handler !== 'function') {
-        continue;
-      }
-
-      const event = reflector.get<EventConfig>(MetadataKey.EVENT_CONFIG, handler);
-      if (!event) {
-        continue;
-      }
-
-      items.push({
-        event: event.name,
-        priority: event.priority || 0,
-        server: event.server ?? false,
-        handler: handler.bind(instance),
-        label: `${Service.name}.${handler.name}`,
-      });
-    }
-  }
-
-  const handlers = _.orderBy(items, ['priority'], ['asc']);
-
-  // register by priority
-  for (const handler of handlers) {
-    repository.on(handler);
-  }
-
-  return handlers;
-};