rudeshark.net/src/api/endpoints/drive.js

'use strict';

/**
 * Module dependencies
 */
import DriveFile from './models/drive-file';

/**
 * Get drive information
 *
 * @param {Object} params
 * @param {Object} user
 * @return {Promise<object>}
 */
module.exports = (params, user) =>
	new Promise(async (res, rej) =>
{
	// Fetch all files to calculate drive usage
		const files = await DriveFile
			.find({ user_id: user._id }, {
				datasize: true,
				_id: false
			});

	// Calculate drive usage (in byte)
	const usage = files.map(file => file.datasize).reduce((x, y) => x + y, 0);

	res({
		capacity: user.drive_capacity,
		usage: usage
	});
});