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path: root/src/server/api/endpoints/i/favorites.ts
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/**
 * Module dependencies
 */
import $ from 'cafy';
import Favorite, { pack } from '../../../../models/favorite';

/**
 * Get favorited notes
 */
module.exports = (params, user) => new Promise(async (res, rej) => {
	// Get 'limit' parameter
	const [limit = 10, limitErr] = $(params.limit).optional.number().range(1, 100).$;
	if (limitErr) return rej('invalid limit param');

	// Get 'sinceId' parameter
	const [sinceId, sinceIdErr] = $(params.sinceId).optional.id().$;
	if (sinceIdErr) return rej('invalid sinceId param');

	// Get 'untilId' parameter
	const [untilId, untilIdErr] = $(params.untilId).optional.id().$;
	if (untilIdErr) return rej('invalid untilId param');

	// Check if both of sinceId and untilId is specified
	if (sinceId && untilId) {
		return rej('cannot set sinceId and untilId');
	}

	const query = {
		userId: user._id
	} as any;

	const sort = {
		_id: -1
	};

	if (sinceId) {
		sort._id = 1;
		query._id = {
			$gt: sinceId
		};
	} else if (untilId) {
		query._id = {
			$lt: untilId
		};
	}

	// Get favorites
	const favorites = await Favorite
		.find(query, { limit, sort });

	// Serialize
	res(await Promise.all(favorites.map(favorite => pack(favorite, user))));
});