/*!
 * Jodit Editor (https://xdsoft.net/jodit/)
 * License GNU General Public License version 2 or later;
 * Copyright 2013-2019 Valeriy Chupurnov https://xdsoft.net
 */

/**
 * Converts from human readable file size (kb,mb,gb,tb) to bytes
 *
 * @method humanSizeToBytes
 * @param {string|int} human readable file size. Example 1gb or 11.2mb
 * @return {int}
 */
export const humanSizeToBytes = (human: string): number => {
    if (/^[0-9.]+$/.test(human.toString())) {
        return parseFloat(human);
    }

    const format: string = human.substr(-2, 2).toUpperCase(),
        formats: string[] = ['KB', 'MB', 'GB', 'TB'],
        number: number = parseFloat(human.substr(0, human.length - 2));

    return formats.indexOf(format) !== -1
        ? number * Math.pow(1024, formats.indexOf(format) + 1)
        : parseInt(human, 10);
};