なんかもうめっちゃ変えた

packages/backend/src/core/entities/UserGroupInvitationEntityService.ts

@@ -0,0 +1,39 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { DI } from '@/di-symbols.js';
+import { UserGroupInvitationsRepository } from '@/models/index.js';
+import { awaitAll } from '@/misc/prelude/await-all.js';
+import type { Packed } from '@/misc/schema.js';
+import type { } from '@/models/entities/Blocking.js';
+import type { User } from '@/models/entities/User.js';
+import type { UserGroupInvitation } from '@/models/entities/UserGroupInvitation.js';
+import { UserEntityService } from './UserEntityService.js';
+import { UserGroupEntityService } from './UserGroupEntityService.js';
+
+@Injectable()
+export class UserGroupInvitationEntityService {
+	constructor(
+		@Inject(DI.userGroupInvitationsRepository)
+		private userGroupInvitationsRepository: UserGroupInvitationsRepository,
+
+		private userGroupEntityService: UserGroupEntityService,
+	) {
+	}
+
+	public async pack(
+		src: UserGroupInvitation['id'] | UserGroupInvitation,
+	) {
+		const invitation = typeof src === 'object' ? src : await this.userGroupInvitationsRepository.findOneByOrFail({ id: src });
+
+		return {
+			id: invitation.id,
+			group: await this.userGroupEntityService.pack(invitation.userGroup ?? invitation.userGroupId),
+		};
+	}
+
+	public packMany(
+		invitations: any[],
+	) {
+		return Promise.all(invitations.map(x => this.pack(x)));
+	}
+}
+