firefish/packages/backend/src/remote/activitypub/kernel/delete/note.ts

import type { CacheableRemoteUser } from "@/models/entities/user.js";
import deleteNote from "@/services/note/delete.js";
import { apLogger } from "../../logger.js";
import DbResolver from "../../db-resolver.js";
import { getApLock } from "@/misc/app-lock.js";
import { deleteMessage } from "@/services/messages/delete.js";

const logger = apLogger;

export default async function (
	actor: CacheableRemoteUser,
	uri: string,
): Promise<string> {
	logger.info(`Deleting the Note: ${uri}`);

	const lock = await getApLock(uri);

	try {
		const dbResolver = new DbResolver();
		const note = await dbResolver.getNoteFromApId(uri);

		if (note == null) {
			const message = await dbResolver.getMessageFromApId(uri);
			if (message == null) return "message not found";

			if (message.userId !== actor.id) {
				return "The user trying to delete the post is not the post author";
			}

			await deleteMessage(message);

			return "ok: message deleted";
		}

		if (note.userId !== actor.id) {
			return "The user trying to delete the post is not the post author";
		}

		await deleteNote(actor, note);
		return "ok: note deleted";
	} finally {
		await lock.release();
	}
}