なんかもうめっちゃ変えた

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

@@ -0,0 +1,57 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { DI } from '@/di-symbols.js';
+import { GalleryLikesRepository, GalleryPostsRepository } 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 { GalleryPost } from '@/models/entities/GalleryPost.js';
+import { UserEntityService } from './UserEntityService.js';
+import { DriveFileEntityService } from './DriveFileEntityService.js';
+
+@Injectable()
+export class GalleryPostEntityService {
+	constructor(
+		@Inject(DI.galleryPostsRepository)
+		private galleryPostsRepository: GalleryPostsRepository,
+
+		@Inject(DI.galleryLikesRepository)
+		private galleryLikesRepository: GalleryLikesRepository,
+
+		private userEntityService: UserEntityService,
+		private driveFileEntityService: DriveFileEntityService,
+	) {
+	}
+
+	public async pack(
+		src: GalleryPost['id'] | GalleryPost,
+		me?: { id: User['id'] } | null | undefined,
+	): Promise<Packed<'GalleryPost'>> {
+		const meId = me ? me.id : null;
+		const post = typeof src === 'object' ? src : await this.galleryPostsRepository.findOneByOrFail({ id: src });
+
+		return await awaitAll({
+			id: post.id,
+			createdAt: post.createdAt.toISOString(),
+			updatedAt: post.updatedAt.toISOString(),
+			userId: post.userId,
+			user: this.userEntityService.pack(post.user ?? post.userId, me),
+			title: post.title,
+			description: post.description,
+			fileIds: post.fileIds,
+			files: this.driveFileEntityService.packMany(post.fileIds),
+			tags: post.tags.length > 0 ? post.tags : undefined,
+			isSensitive: post.isSensitive,
+			likedCount: post.likedCount,
+			isLiked: meId ? await this.galleryLikesRepository.findOneBy({ postId: post.id, userId: meId }).then(x => x != null) : undefined,
+		});
+	}
+
+	public packMany(
+		posts: GalleryPost[],
+		me?: { id: User['id'] } | null | undefined,
+	) {
+		return Promise.all(posts.map(x => this.pack(x, me)));
+	}
+}
+