src/remote/activitypub/kernel/add/index.ts


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import { IRemoteUser } from '../../../../models/entities/user';
import { IAdd } from '../../type';
import { resolveNote } from '../../models/note';
import { addPinned } from '../../../../services/i/pin';

export default async (actor: IRemoteUser, activity: IAdd): Promise<void> => {
	if ('actor' in activity && actor.uri !== activity.actor) {
		throw new Error('invalid actor');
	}

	if (activity.target == null) {
		throw new Error('target is null');
	}

	if (activity.target === actor.featured) {
		const note = await resolveNote(activity.object);
		if (note == null) throw new Error('note not found');
		await addPinned(actor, note.id);
		return;
	}

	throw new Error(`unknown target: ${activity.target}`);
};