misskey/packages/backend/src/server/api/common/inject-featured.ts
2022-09-20 05:32:18 +09:00

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import rndstr from 'rndstr';
import type { Note } from '@/models/entities/Note.js';
import type { User } from '@/models/entities/User.js';
// TODO: リアクション、Renote、返信などをしたートは除外する
export async function injectFeatured(timeline: Note[], user?: User | null) {
if (timeline.length < 5) return;
if (user) {
const profile = await UserProfiles.findOneByOrFail({ userId: user.id });
if (!profile.injectFeaturedNote) return;
}
const max = 30;
const day = 1000 * 60 * 60 * 24 * 3; // 3日前まで
const query = Notes.createQueryBuilder('note')
.addSelect('note.score')
.where('note.userHost IS NULL')
.andWhere('note.score > 0')
.andWhere('note.createdAt > :date', { date: new Date(Date.now() - day) })
.andWhere('note.visibility = \'public\'')
.innerJoinAndSelect('note.user', 'user');
if (user) {
query.andWhere('note.userId != :userId', { userId: user.id });
generateMutedUserQuery(query, user);
generateBlockedUserQuery(query, user);
const reactionQuery = NoteReactions.createQueryBuilder('reaction')
.select('reaction.noteId')
.where('reaction.userId = :userId', { userId: user.id });
query.andWhere(`note.id NOT IN (${ reactionQuery.getQuery() })`);
}
const notes = await query
.orderBy('note.score', 'DESC')
.take(max)
.getMany();
if (notes.length === 0) return;
// Pick random one
const featured = notes[Math.floor(Math.random() * notes.length)];
(featured as any)._featuredId_ = rndstr('a-z0-9', 8);
// Inject featured
timeline.splice(3, 0, featured);
}