なんかもうめっちゃ変えた

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

@@ -0,0 +1,109 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { DI } from '@/di-symbols.js';
+import { DriveFilesRepository, PagesRepository, PageLikesRepository } 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 { Page } from '@/models/entities/Page.js';
+import type { DriveFile } from '@/models/entities/DriveFile.js';
+import { UserEntityService } from './UserEntityService.js';
+import { DriveFileEntityService } from './DriveFileEntityService.js';
+
+@Injectable()
+export class PageEntityService {
+	constructor(
+		@Inject(DI.pagesRepository)
+		private pagesRepository: PagesRepository,
+
+		@Inject(DI.pageLikesRepository)
+		private pageLikesRepository: PageLikesRepository,
+
+		@Inject(DI.driveFilesRepository)
+		private driveFilesRepository: DriveFilesRepository,
+
+		private userEntityService: UserEntityService,
+		private driveFileEntityService: DriveFileEntityService,
+	) {
+	}
+
+	public async pack(
+		src: Page['id'] | Page,
+		me?: { id: User['id'] } | null | undefined,
+	): Promise<Packed<'Page'>> {
+		const meId = me ? me.id : null;
+		const page = typeof src === 'object' ? src : await this.pagesRepository.findOneByOrFail({ id: src });
+
+		const attachedFiles: Promise<DriveFile | null>[] = [];
+		const collectFile = (xs: any[]) => {
+			for (const x of xs) {
+				if (x.type === 'image') {
+					attachedFiles.push(this.driveFilesRepository.findOneBy({
+						id: x.fileId,
+						userId: page.userId,
+					}));
+				}
+				if (x.children) {
+					collectFile(x.children);
+				}
+			}
+		};
+		collectFile(page.content);
+
+		// 後方互換性のため
+		let migrated = false;
+		const migrate = (xs: any[]) => {
+			for (const x of xs) {
+				if (x.type === 'input') {
+					if (x.inputType === 'text') {
+						x.type = 'textInput';
+					}
+					if (x.inputType === 'number') {
+						x.type = 'numberInput';
+						if (x.default) x.default = parseInt(x.default, 10);
+					}
+					migrated = true;
+				}
+				if (x.children) {
+					migrate(x.children);
+				}
+			}
+		};
+		migrate(page.content);
+		if (migrated) {
+			this.pagesRepository.update(page.id, {
+				content: page.content,
+			});
+		}
+
+		return await awaitAll({
+			id: page.id,
+			createdAt: page.createdAt.toISOString(),
+			updatedAt: page.updatedAt.toISOString(),
+			userId: page.userId,
+			user: this.userEntityService.pack(page.user ?? page.userId, me), // { detail: true } すると無限ループするので注意
+			content: page.content,
+			variables: page.variables,
+			title: page.title,
+			name: page.name,
+			summary: page.summary,
+			hideTitleWhenPinned: page.hideTitleWhenPinned,
+			alignCenter: page.alignCenter,
+			font: page.font,
+			script: page.script,
+			eyeCatchingImageId: page.eyeCatchingImageId,
+			eyeCatchingImage: page.eyeCatchingImageId ? await this.driveFileEntityService.pack(page.eyeCatchingImageId) : null,
+			attachedFiles: this.driveFileEntityService.packMany((await Promise.all(attachedFiles)).filter((x): x is DriveFile => x != null)),
+			likedCount: page.likedCount,
+			isLiked: meId ? await this.pageLikesRepository.findOneBy({ pageId: page.id, userId: meId }).then(x => x != null) : undefined,
+		});
+	}
+
+	public packMany(
+		pages: Page[],
+		me?: { id: User['id'] } | null | undefined,
+	) {
+		return Promise.all(pages.map(x => this.pack(x, me)));
+	}
+}
+