refactoring

Resolve #7779

packages/backend/src/server/api/endpoints/announcements.ts

@@ -0,0 +1,92 @@
+import $ from 'cafy';
+import { ID } from '@/misc/cafy-id';
+import define from '../define';
+import { Announcements, AnnouncementReads } from '@/models/index';
+import { makePaginationQuery } from '../common/make-pagination-query';
+
+export const meta = {
+	tags: ['meta'],
+
+	requireCredential: false as const,
+
+	params: {
+		limit: {
+			validator: $.optional.num.range(1, 100),
+			default: 10
+		},
+
+		withUnreads: {
+			validator: $.optional.boolean,
+			default: false
+		},
+
+		sinceId: {
+			validator: $.optional.type(ID),
+		},
+
+		untilId: {
+			validator: $.optional.type(ID),
+		},
+	},
+
+	res: {
+		type: 'array' as const,
+		optional: false as const, nullable: false as const,
+		items: {
+			type: 'object' as const,
+			optional: false as const, nullable: false as const,
+			properties: {
+				id: {
+					type: 'string' as const,
+					optional: false as const, nullable: false as const,
+					format: 'id',
+					example: 'xxxxxxxxxx',
+				},
+				createdAt: {
+					type: 'string' as const,
+					optional: false as const, nullable: false as const,
+					format: 'date-time',
+				},
+				updatedAt: {
+					type: 'string' as const,
+					optional: false as const, nullable: true as const,
+					format: 'date-time',
+				},
+				text: {
+					type: 'string' as const,
+					optional: false as const, nullable: false as const,
+				},
+				title: {
+					type: 'string' as const,
+					optional: false as const, nullable: false as const,
+				},
+				imageUrl: {
+					type: 'string' as const,
+					optional: false as const, nullable: true as const,
+				},
+				isRead: {
+					type: 'boolean' as const,
+					optional: false as const, nullable: false as const,
+				}
+			}
+		}
+	}
+};
+
+export default define(meta, async (ps, user) => {
+	const query = makePaginationQuery(Announcements.createQueryBuilder('announcement'), ps.sinceId, ps.untilId);
+
+	const announcements = await query.take(ps.limit!).getMany();
+
+	if (user) {
+		const reads = (await AnnouncementReads.find({
+			userId: user.id
+		})).map(x => x.announcementId);
+
+		for (const announcement of announcements) {
+			(announcement as any).isRead = reads.includes(announcement.id);
+		}
+	}
+
+	return ps.withUnreads ? announcements.filter((a: any) => !a.isRead) : announcements;
+});