egirlskey/packages/backend/src/core/activitypub/models/ApQuestionService.ts

112 lines
3.4 KiB
TypeScript

import { Inject, Injectable } from '@nestjs/common';
import { DI } from '@/di-symbols.js';
import type { NotesRepository, PollsRepository } from '@/models/index.js';
import type { Config } from '@/config.js';
import type { IPoll } from '@/models/entities/Poll.js';
import type Logger from '@/logger.js';
import { isQuestion } from '../type.js';
import { ApLoggerService } from '../ApLoggerService.js';
import { ApResolverService } from '../ApResolverService.js';
import type { Resolver } from '../ApResolverService.js';
import type { IObject, IQuestion } from '../type.js';
import { bindThis } from '@/decorators.js';
@Injectable()
export class ApQuestionService {
private logger: Logger;
constructor(
@Inject(DI.config)
private config: Config,
@Inject(DI.notesRepository)
private notesRepository: NotesRepository,
@Inject(DI.pollsRepository)
private pollsRepository: PollsRepository,
private apResolverService: ApResolverService,
private apLoggerService: ApLoggerService,
) {
this.logger = this.apLoggerService.logger;
}
@bindThis
public async extractPollFromQuestion(source: string | IObject, resolver?: Resolver): Promise<IPoll> {
if (resolver == null) resolver = this.apResolverService.createResolver();
const question = await resolver.resolve(source);
if (!isQuestion(question)) {
throw new Error('invalid type');
}
const multiple = !question.oneOf;
const expiresAt = question.endTime ? new Date(question.endTime) : question.closed ? new Date(question.closed) : null;
if (multiple && !question.anyOf) {
throw new Error('invalid question');
}
const choices = question[multiple ? 'anyOf' : 'oneOf']!
.map((x, i) => x.name!);
const votes = question[multiple ? 'anyOf' : 'oneOf']!
.map((x, i) => x.replies && x.replies.totalItems || x._misskey_votes || 0);
return {
choices,
votes,
multiple,
expiresAt,
};
}
/**
* Update votes of Question
* @param uri URI of AP Question object
* @returns true if updated
*/
@bindThis
public async updateQuestion(value: any, resolver?: Resolver) {
const uri = typeof value === 'string' ? value : value.id;
// URIがこのサーバーを指しているならスキップ
if (uri.startsWith(this.config.url + '/')) throw new Error('uri points local');
//#region このサーバーに既に登録されているか
const note = await this.notesRepository.findOneBy({ uri });
if (note == null) throw new Error('Question is not registed');
const poll = await this.pollsRepository.findOneBy({ noteId: note.id });
if (poll == null) throw new Error('Question is not registed');
//#endregion
// resolve new Question object
if (resolver == null) resolver = this.apResolverService.createResolver();
const question = await resolver.resolve(value) as IQuestion;
this.logger.debug(`fetched question: ${JSON.stringify(question, null, 2)}`);
if (question.type !== 'Question') throw new Error('object is not a Question');
const apChoices = question.oneOf ?? question.anyOf;
let changed = false;
for (const choice of poll.choices) {
const oldCount = poll.votes[poll.choices.indexOf(choice)];
const newCount = apChoices!.filter(ap => ap.name === choice)[0].replies!.totalItems;
if (oldCount !== newCount) {
changed = true;
poll.votes[poll.choices.indexOf(choice)] = newCount;
}
}
await this.pollsRepository.update({ noteId: note.id }, {
votes: poll.votes,
});
return changed;
}
}