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path: root/packages/backend/src/server/api/endpoints/pages/show.ts
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/*
 * SPDX-FileCopyrightText: syuilo and other misskey contributors
 * SPDX-License-Identifier: AGPL-3.0-only
 */

import { IsNull } from 'typeorm';
import { Inject, Injectable } from '@nestjs/common';
import type { UsersRepository, PagesRepository } from '@/models/index.js';
import type { MiPage } from '@/models/entities/Page.js';
import { Endpoint } from '@/server/api/endpoint-base.js';
import { PageEntityService } from '@/core/entities/PageEntityService.js';
import { DI } from '@/di-symbols.js';
import { ApiError } from '../../error.js';

export const meta = {
	tags: ['pages'],

	requireCredential: false,

	res: {
		type: 'object',
		optional: false, nullable: false,
		ref: 'Page',
	},

	errors: {
		noSuchPage: {
			message: 'No such page.',
			code: 'NO_SUCH_PAGE',
			id: '222120c0-3ead-4528-811b-b96f233388d7',
		},
	},
} as const;

export const paramDef = {
	type: 'object',
	properties: {
		pageId: { type: 'string', format: 'misskey:id' },
		name: { type: 'string' },
		username: { type: 'string' },
	},
	anyOf: [
		{ required: ['pageId'] },
		{ required: ['name', 'username'] },
	],
} as const;

// eslint-disable-next-line import/no-default-export
@Injectable()
export default class extends Endpoint<typeof meta, typeof paramDef> {
	constructor(
		@Inject(DI.usersRepository)
		private usersRepository: UsersRepository,

		@Inject(DI.pagesRepository)
		private pagesRepository: PagesRepository,

		private pageEntityService: PageEntityService,
	) {
		super(meta, paramDef, async (ps, me) => {
			let page: MiPage | null = null;

			if (ps.pageId) {
				page = await this.pagesRepository.findOneBy({ id: ps.pageId });
			} else if (ps.name && ps.username) {
				const author = await this.usersRepository.findOneBy({
					host: IsNull(),
					usernameLower: ps.username.toLowerCase(),
				});
				if (author) {
					page = await this.pagesRepository.findOneBy({
						name: ps.name,
						userId: author.id,
					});
				}
			}

			if (page == null) {
				throw new ApiError(meta.errors.noSuchPage);
			}

			return await this.pageEntityService.pack(page, me);
		});
	}
}