44 lines
1.2 KiB
TypeScript
44 lines
1.2 KiB
TypeScript
import { Inject, Injectable } from '@nestjs/common';
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import { IsNull } from 'typeorm';
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import type { LocalUser } from '@/models/entities/User.js';
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import type { UsersRepository } from '@/models/index.js';
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import { KVCache } from '@/misc/cache.js';
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import { DI } from '@/di-symbols.js';
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import { CreateSystemUserService } from '@/core/CreateSystemUserService.js';
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import { bindThis } from '@/decorators.js';
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const ACTOR_USERNAME = 'instance.actor' as const;
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@Injectable()
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export class InstanceActorService {
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private cache: KVCache<LocalUser>;
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constructor(
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@Inject(DI.usersRepository)
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private usersRepository: UsersRepository,
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private createSystemUserService: CreateSystemUserService,
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) {
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this.cache = new KVCache<LocalUser>(Infinity);
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}
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@bindThis
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public async getInstanceActor(): Promise<LocalUser> {
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const cached = this.cache.get(null);
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if (cached) return cached;
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const user = await this.usersRepository.findOneBy({
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host: IsNull(),
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username: ACTOR_USERNAME,
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}) as LocalUser | undefined;
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if (user) {
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this.cache.set(null, user);
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return user;
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} else {
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const created = await this.createSystemUserService.createSystemUser(ACTOR_USERNAME) as LocalUser;
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this.cache.set(null, created);
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return created;
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}
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}
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}
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