coach-core/lib/har/util.js

Core package for the Coach.

import urlParser from 'node:url';

export function isHTTP2(page) {
  return page.httpType === 'h2';
}

export function isHTTP3(page) {
  return page.httpType.startsWith('h3');
}

/**
 * Get the hostname from a URL string.
 * @param {string} url The URL like https://www.example.com/hepp
 * @returns {string} the hostname
 */
export function getHostname(url) {
  if (!url) {
    return '';
  }

  return urlParser.parse(url).hostname || '';
}

/**
 * Convert bytes to human readable.
 * @param {Number} bytes
 * @returns {String} human readable file size
 */
export function formatBytes(bytes) {
  var sizes = ['B', 'kB', 'MB', 'GB', 'TB'];

  if (bytes === 0) {
    return '0 B';
  }

  var i = Number.parseInt(Math.floor(Math.log(bytes) / Math.log(1000)), 10);
  return Math.round((bytes / Math.pow(1000, i)) * 10) / 10 + ' ' + sizes[i];
}

/**
 * Print seconds as the largest available time.
 * @param {int} seconds A number in seconds
 * @return {String} The time in nearest largest definition.
 */
export function prettyPrintSeconds(seconds) {
  if (seconds === undefined) {
    return '';
  }

  var secondsPerYear = 365 * 24 * 60 * 60,
    secondsPerWeek = 60 * 60 * 24 * 7,
    secondsPerDay = 60 * 60 * 24,
    secondsPerHour = 60 * 60,
    secondsPerMinute = 60,
    sign = seconds < 0 ? '-' : '';

  if (seconds < 0) {
    seconds = Math.abs(seconds);
  }

  if (seconds / secondsPerYear >= 1) {
    return (
      sign +
      Math.round(seconds / secondsPerYear) +
      ' year' +
      (Math.round(seconds / secondsPerYear) > 1 ? 's' : '')
    );
  } else if (seconds / secondsPerWeek >= 1) {
    return (
      sign +
      Math.round(seconds / secondsPerWeek) +
      ' week' +
      (Math.round(seconds / secondsPerWeek) > 1 ? 's' : '')
    );
  } else if (seconds / secondsPerDay >= 1) {
    return (
      sign +
      Math.round(seconds / secondsPerDay) +
      ' day' +
      (Math.round(seconds / secondsPerDay) > 1 ? 's' : '')
    );
  } else if (seconds / secondsPerHour >= 1) {
    return (
      sign +
      Math.round(seconds / secondsPerHour) +
      ' hour' +
      (Math.round(seconds / secondsPerHour) > 1 ? 's' : '')
    );
  } else if (seconds / secondsPerMinute >= 1) {
    return (
      sign +
      Math.round(seconds / secondsPerMinute) +
      ' minute' +
      (Math.round(seconds / secondsPerMinute) > 1 ? 's' : '')
    );
  } else {
    return (
      sign + seconds + ' second' + (seconds > 1 || seconds === 0 ? 's' : '')
    );
  }
}

export function human(node, pretty) {
  if (!node) {
    return;
  }

  let clean = {};
  for (const key of Object.keys(node)) {
    clean[key] = pretty(node[key]);
  }
  return clean;
}

export function shortURL(url) {
  if (url.length > 40) {
    let shortUrl = url.replace(/\?.*/, '');
    url = shortUrl.slice(0, 20) + '...' + shortUrl.slice(-17);
  }
  return url;
}

export function plural(number, text) {
  if (number > 1) {
    text += 's';
  }
  return `${number} ${text}`;
}