ページにいいねできるように

src/server/api/endpoints/pages/like.ts

@@ -0,0 +1,79 @@
+import $ from 'cafy';
+import { ID } from '../../../../misc/cafy-id';
+import define from '../../define';
+import { ApiError } from '../../error';
+import { Pages, PageLikes } from '../../../../models';
+import { genId } from '../../../../misc/gen-id';
+
+export const meta = {
+	desc: {
+		'ja-JP': '指定したページを「いいね」します。',
+	},
+
+	tags: ['pages'],
+
+	requireCredential: true,
+
+	kind: 'write:page-likes',
+
+	params: {
+		pageId: {
+			validator: $.type(ID),
+			desc: {
+				'ja-JP': '対象のページのID',
+				'en-US': 'Target page ID.'
+			}
+		}
+	},
+
+	errors: {
+		noSuchPage: {
+			message: 'No such page.',
+			code: 'NO_SUCH_PAGE',
+			id: 'cc98a8a2-0dc3-4123-b198-62c71df18ed3'
+		},
+
+		yourPage: {
+			message: 'You cannot like your page.',
+			code: 'YOUR_PAGE',
+			id: '28800466-e6db-40f2-8fae-bf9e82aa92b8'
+		},
+
+		alreadyLiked: {
+			message: 'The page has already been liked.',
+			code: 'ALREADY_LIKED',
+			id: 'cc98a8a2-0dc3-4123-b198-62c71df18ed3'
+		},
+	}
+};
+
+export default define(meta, async (ps, user) => {
+	const page = await Pages.findOne(ps.pageId);
+	if (page == null) {
+		throw new ApiError(meta.errors.noSuchPage);
+	}
+
+	if (page.userId === user.id) {
+		throw new ApiError(meta.errors.yourPage);
+	}
+
+	// if already liked
+	const exist = await PageLikes.findOne({
+		pageId: page.id,
+		userId: user.id
+	});
+
+	if (exist != null) {
+		throw new ApiError(meta.errors.alreadyLiked);
+	}
+
+	// Create like
+	await PageLikes.save({
+		id: genId(),
+		createdAt: new Date(),
+		pageId: page.id,
+		userId: user.id
+	});
+
+	Pages.increment({ id: page.id }, 'likedCount', 1);
+});