mizzkey/packages/backend/src/server/api/endpoints/notes/conversation.ts

import { Note } from '@/models/entities/note.js';
import { Notes } from '@/models/index.js';
import define from '../../define.js';
import { ApiError } from '../../error.js';
import { getNote } from '../../common/getters.js';

export const meta = {
	tags: ['notes'],

	requireCredential: false,

	res: {
		type: 'array',
		optional: false, nullable: false,
		items: {
			type: 'object',
			optional: false, nullable: false,
			ref: 'Note',
		},
	},

	errors: {
		noSuchNote: {
			message: 'No such note.',
			code: 'NO_SUCH_NOTE',
			id: 'e1035875-9551-45ec-afa8-1ded1fcb53c8',
		},
	},
} as const;

export const paramDef = {
	type: 'object',
	properties: {
		noteId: { type: 'string', format: 'misskey:id' },
		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
		offset: { type: 'integer', default: 0 },
	},
	required: ['noteId'],
} as const;

// eslint-disable-next-line import/no-default-export
export default define(meta, paramDef, async (ps, user) => {
	const note = await getNote(ps.noteId).catch(e => {
		if (e.id === '9725d0ce-ba28-4dde-95a7-2cbb2c15de24') throw new ApiError(meta.errors.noSuchNote);
		throw e;
	});

	const conversation: Note[] = [];
	let i = 0;

	async function get(id: any) {
		i++;
		const p = await Notes.findOneBy({ id });
		if (p == null) return;

		if (i > ps.offset!) {
			conversation.push(p);
		}

		if (conversation.length === ps.limit) {
			return;
		}

		if (p.replyId) {
			await get(p.replyId);
		}
	}

	if (note.replyId) {
		await get(note.replyId);
	}

	return await Notes.packMany(conversation, user);
});