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import rndstr from 'rndstr';
import { Note } from '../../../models/entities/note';
import { User } from '../../../models/entities/user';
import { Notes, UserProfiles, NoteReactions } from '../../../models';
import { generateMutedUserQuery } from './generate-muted-user-query';
import { ensure } from '../../../prelude/ensure';
// TODO: リアクション、Renote、返信などをしたノートは除外する
export async function injectFeatured(timeline: Note[], user?: User | null) {
if (timeline.length < 5) return;
if (user) {
const profile = await UserProfiles.findOne(user.id).then(ensure);
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'`)
.leftJoinAndSelect('note.user', 'user');
if (user) {
query.andWhere('note.userId != :userId', { userId: user.id });
generateMutedUserQuery(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);
}
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