yumechi-no-kuni/packages/backend/src/core/UserKeypairStoreService.ts

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import { Inject, Injectable } from '@nestjs/common';
import type { User } from '@/models/entities/User.js';
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import type { UserKeypairsRepository } from '@/models/index.js';
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import { KVCache } from '@/misc/cache.js';
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import type { UserKeypair } from '@/models/entities/UserKeypair.js';
import { DI } from '@/di-symbols.js';
import { bindThis } from '@/decorators.js';
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@Injectable()
export class UserKeypairStoreService {
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private cache: KVCache<UserKeypair>;
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constructor(
@Inject(DI.userKeypairsRepository)
private userKeypairsRepository: UserKeypairsRepository,
) {
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this.cache = new KVCache<UserKeypair>(Infinity);
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}
@bindThis
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public async getUserKeypair(userId: User['id']): Promise<UserKeypair> {
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return await this.cache.fetch(userId, () => this.userKeypairsRepository.findOneByOrFail({ userId: userId }));
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}
}