hippofish/src/remote/activitypub/models/question.ts
2019-04-10 20:07:36 +09:00

80 lines
2.3 KiB
TypeScript

import config from '../../../config';
import Resolver from '../resolver';
import { IQuestion } from '../type';
import { apLogger } from '../logger';
import { Notes, Polls } from '../../../models';
import { IPoll } from '../../../models/entities/poll';
export async function extractPollFromQuestion(source: string | IQuestion): Promise<IPoll> {
const question = typeof source === 'string' ? await new Resolver().resolve(source) as IQuestion : source;
const multiple = !question.oneOf;
const expiresAt = question.endTime ? new Date(question.endTime) : null;
if (multiple && !question.anyOf) {
throw '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
*/
export async function updateQuestion(value: any) {
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(config.url + '/')) throw 'uri points local';
//#region このサーバーに既に登録されているか
const note = await Notes.findOne({ uri });
if (note == null) throw 'Question is not registed';
const poll = await Polls.findOne({ noteId: note.id });
if (poll == null) throw 'Question is not registed';
//#endregion
// resolve new Question object
const resolver = new Resolver();
const question = await resolver.resolve(value) as IQuestion;
apLogger.debug(`fetched question: ${JSON.stringify(question, null, 2)}`);
if (question.type !== 'Question') throw '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 Notes.update(note.id, {
updatedAt: new Date(),
});
await Polls.update({ noteId: note.id }, {
votes: poll.votes
});
return changed;
}