yumechi-no-kuni/packages/backend/src/services/i/pin.ts
2021-12-09 23:58:30 +09:00

92 lines
2.8 KiB
TypeScript

import config from '@/config/index';
import renderAdd from '@/remote/activitypub/renderer/add';
import renderRemove from '@/remote/activitypub/renderer/remove';
import { renderActivity } from '@/remote/activitypub/renderer/index';
import { IdentifiableError } from '@/misc/identifiable-error';
import { User } from '@/models/entities/user';
import { Note } from '@/models/entities/note';
import { Notes, UserNotePinings, Users } from '@/models/index';
import { UserNotePining } from '@/models/entities/user-note-pining';
import { genId } from '@/misc/gen-id';
import { deliverToFollowers } from '@/remote/activitypub/deliver-manager';
import { deliverToRelays } from '../relay';
/**
* 指定した投稿をピン留めします
* @param user
* @param noteId
*/
export async function addPinned(user: { id: User['id']; host: User['host']; }, noteId: Note['id']) {
// Fetch pinee
const note = await Notes.findOne({
id: noteId,
userId: user.id,
});
if (note == null) {
throw new IdentifiableError('70c4e51f-5bea-449c-a030-53bee3cce202', 'No such note.');
}
const pinings = await UserNotePinings.find({ userId: user.id });
if (pinings.length >= 5) {
throw new IdentifiableError('15a018eb-58e5-4da1-93be-330fcc5e4e1a', 'You can not pin notes any more.');
}
if (pinings.some(pining => pining.noteId === note.id)) {
throw new IdentifiableError('23f0cf4e-59a3-4276-a91d-61a5891c1514', 'That note has already been pinned.');
}
await UserNotePinings.insert({
id: genId(),
createdAt: new Date(),
userId: user.id,
noteId: note.id,
} as UserNotePining);
// Deliver to remote followers
if (Users.isLocalUser(user)) {
deliverPinnedChange(user.id, note.id, true);
}
}
/**
* 指定した投稿のピン留めを解除します
* @param user
* @param noteId
*/
export async function removePinned(user: { id: User['id']; host: User['host']; }, noteId: Note['id']) {
// Fetch unpinee
const note = await Notes.findOne({
id: noteId,
userId: user.id,
});
if (note == null) {
throw new IdentifiableError('b302d4cf-c050-400a-bbb3-be208681f40c', 'No such note.');
}
UserNotePinings.delete({
userId: user.id,
noteId: note.id,
});
// Deliver to remote followers
if (Users.isLocalUser(user)) {
deliverPinnedChange(user.id, noteId, false);
}
}
export async function deliverPinnedChange(userId: User['id'], noteId: Note['id'], isAddition: boolean) {
const user = await Users.findOne(userId);
if (user == null) throw new Error('user not found');
if (!Users.isLocalUser(user)) return;
const target = `${config.url}/users/${user.id}/collections/featured`;
const item = `${config.url}/notes/${noteId}`;
const content = renderActivity(isAddition ? renderAdd(user, target, item) : renderRemove(user, target, item));
deliverToFollowers(user, content);
deliverToRelays(user, content);
}