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enhance(backend): improve featured system

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This commit is contained in:
syuilo
2023-10-06 14:24:25 +09:00
parent e4dcab8671
commit dab205edb8
10 changed files with 208 additions and 33 deletions
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51
packages/backend/src/server/api/endpoints/notes/featured.ts
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@@ -6,9 +6,9 @@
import { Inject, Injectable } from '@nestjs/common';
import type { NotesRepository } from '@/models/_.js';
import { Endpoint } from '@/server/api/endpoint-base.js';
import { QueryService } from '@/core/QueryService.js';
import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
import { DI } from '@/di-symbols.js';
import { FeaturedService } from '@/core/FeaturedService.js';
export const meta = {
tags: ['notes'],
@@ -40,41 +40,50 @@ export const paramDef = {
@Injectable()
export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
private globalNotesRankingCache: string[] = [];
private globalNotesRankingCacheLastFetchedAt = 0;
constructor(
@Inject(DI.notesRepository)
private notesRepository: NotesRepository,
private noteEntityService: NoteEntityService,
private queryService: QueryService,
private featuredService: FeaturedService,
) {
super(meta, paramDef, async (ps, me) => {
const day = 1000 * 60 * 60 * 24 * 3; // 3日前まで
let noteIds: string[];
if (ps.channelId) {
noteIds = await this.featuredService.getInChannelNotesRanking(ps.channelId, 50);
} else {
if (this.globalNotesRankingCacheLastFetchedAt !== 0 && (Date.now() - this.globalNotesRankingCacheLastFetchedAt < 1000 * 60 * 30)) {
noteIds = this.globalNotesRankingCache;
} else {
noteIds = await this.featuredService.getGlobalNotesRanking(100);
this.globalNotesRankingCache = noteIds;
this.globalNotesRankingCacheLastFetchedAt = Date.now();
}
}
if (noteIds.length === 0) {
return [];
}
noteIds.sort((a, b) => a > b ? -1 : 1);
noteIds.slice(ps.offset, ps.offset + ps.limit);
const query = this.notesRepository.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\'')
.where('note.id IN (:...noteIds)', { noteIds: noteIds })
.innerJoinAndSelect('note.user', 'user')
.leftJoinAndSelect('note.reply', 'reply')
.leftJoinAndSelect('note.renote', 'renote')
.leftJoinAndSelect('reply.user', 'replyUser')
.leftJoinAndSelect('renote.user', 'renoteUser');
.leftJoinAndSelect('renote.user', 'renoteUser')
.leftJoinAndSelect('note.channel', 'channel');
if (ps.channelId) query.andWhere('note.channelId = :channelId', { channelId: ps.channelId });
const notes = await query.getMany();
notes.sort((a, b) => a.id > b.id ? -1 : 1);
if (me) this.queryService.generateMutedUserQuery(query, me);
if (me) this.queryService.generateBlockedUserQuery(query, me);
let notes = await query
.orderBy('note.score', 'DESC')
.limit(100)
.getMany();
notes.sort((a, b) => new Date(b.createdAt).getTime() - new Date(a.createdAt).getTime());
notes = notes.slice(ps.offset, ps.offset + ps.limit);
// TODO: ミュート等考慮
return await this.noteEntityService.packMany(notes, me);
});