82 lines
2.3 KiB
TypeScript
82 lines
2.3 KiB
TypeScript
import { IsNull, MoreThan, Not } from 'typeorm';
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import { Inject, Injectable } from '@nestjs/common';
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import type { FollowingsRepository, InstancesRepository } from '@/models/index.js';
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import { awaitAll } from '@/misc/prelude/await-all.js';
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import { Endpoint } from '@/server/api/endpoint-base.js';
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import { InstanceEntityService } from '@/core/entities/InstanceEntityService.js';
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import { DI } from '@/di-symbols.js';
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export const meta = {
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tags: ['federation'],
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requireCredential: false,
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allowGet: true,
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cacheSec: 60 * 60,
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} as const;
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export const paramDef = {
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type: 'object',
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properties: {
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limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
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},
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required: [],
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} as const;
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// eslint-disable-next-line import/no-default-export
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@Injectable()
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export default class extends Endpoint<typeof meta, typeof paramDef> {
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constructor(
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@Inject(DI.instancesRepository)
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private instancesRepository: InstancesRepository,
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@Inject(DI.followingsRepository)
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private followingsRepository: FollowingsRepository,
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private instanceEntityService: InstanceEntityService,
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) {
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super(meta, paramDef, async (ps, me) => {
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const [topSubInstances, topPubInstances, allSubCount, allPubCount] = await Promise.all([
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this.instancesRepository.find({
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where: {
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followersCount: MoreThan(0),
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},
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order: {
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followersCount: 'DESC',
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},
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take: ps.limit,
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}),
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this.instancesRepository.find({
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where: {
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followingCount: MoreThan(0),
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},
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order: {
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followingCount: 'DESC',
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},
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take: ps.limit,
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}),
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this.followingsRepository.count({
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where: {
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followeeHost: Not(IsNull()),
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},
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}),
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this.followingsRepository.count({
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where: {
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followerHost: Not(IsNull()),
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},
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}),
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]);
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const gotSubCount = topSubInstances.map(x => x.followersCount).reduce((a, b) => a + b, 0);
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const gotPubCount = topPubInstances.map(x => x.followingCount).reduce((a, b) => a + b, 0);
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return await awaitAll({
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topSubInstances: this.instanceEntityService.packMany(topSubInstances),
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otherFollowersCount: Math.max(0, allSubCount - gotSubCount),
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topPubInstances: this.instanceEntityService.packMany(topPubInstances),
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otherFollowingCount: Math.max(0, allPubCount - gotPubCount),
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});
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});
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}
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}
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