Swatch Internet Time

Convert times to Swatch Internet Time .beats

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Swatch Internet Time
// @author       Nik Rolls
// @description  Convert times to Swatch Internet Time .beats
// @match        *://*/*
// @require      https://greasyfork.org/scripts/395037-monkeyconfig-modern/code/MonkeyConfig%20Modern.js?version=764968
// @grant        GM_getMetadata
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_registerMenuCommand
// @grant        GM_addStyle
// @namespace https://greasyfork.org/users/503103
// @version 0.0.1.20200412044545
// ==/UserScript==

(function() {
  'use strict';

  const cfg = new MonkeyConfig({
    menuCommand: true,
    params: {
      global_timezone: {
        label: 'Use global BMT timezone',
        type: 'checkbox',
        default: true
      }
    }
  });

  let interval = null;

  document.addEventListener('visibilitychange', detectVisibility);
  detectVisibility();

  function detectVisibility() {
    if (document.visibilityState === 'visible') {
      startWatching();
    } else {
      stopWatching();
    }
  }

  function startWatching() {
    augmentAllTimes();
    interval = window.setInterval(augmentAllTimes, 1000);
  }

  function stopWatching() {
    if (interval) {
      window.clearInterval(interval);
    }
  }

  function augmentAllTimes() {
    do {} while (augmentTimes())
  }

  function augmentTimes() {
    let replacements = 0;
    const items = document.evaluate('/html/body//*[not(self::style or self::script or self::time or self::input or self::textarea or boolean(@contenteditable)) and text()[contains(.,":0") or contains(.,":1") or contains(.,":2") or contains(.,":3") or contains(.,":4") or contains(.,":5") or contains(.,":6") or contains(.,":7") or contains(.,":8") or contains(.,":9") or contains(.,"0pm") or contains(.,"1pm") or contains(.,"2pm") or contains(.,"3pm") or contains(.,"4pm") or contains(.,"5pm") or contains(.,"6pm") or contains(.,"7pm") or contains(.,"8pm") or contains(.,"9pm") or contains(.,"0 pm") or contains(.,"1 pm") or contains(.,"2 pm") or contains(.,"3 pm") or contains(.,"4 pm") or contains(.,"5 pm") or contains(.,"6 pm") or contains(.,"7 pm") or contains(.,"8 pm") or contains(.,"9 pm") or contains(.,"0am") or contains(.,"1am") or contains(.,"2am") or contains(.,"3am") or contains(.,"4am") or contains(.,"5am") or contains(.,"6am") or contains(.,"7am") or contains(.,"8am") or contains(.,"9am") or contains(.,"0 am") or contains(.,"1 am") or contains(.,"2 am") or contains(.,"3 am") or contains(.,"4 am") or contains(.,"5 am") or contains(.,"6 am") or contains(.,"7 am") or contains(.,"8 am") or contains(.,"9 am")]]', document.body, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);

    for (var i = 0; i < items.snapshotLength; i++) {
      const item = items.snapshotItem(i);
      const pattern = /(?:(?:([1-9][0-9]?(?::\d{2})*)\s*(a\.?m\.?|p\.?m\.?))|(\d{1,2}?:\d{2}(?::\d{2}(?:\.\d+)?)?))/i;
      const match = item.innerText.match(pattern);
      if (match) {
        let dateTime;

        if (match[1]) {
          const time = match[1];
          const meridiem = match[2].replace(/\./g, '');
          dateTime = createDateTime(time, meridiem);
        } else if (match[3]) {
          dateTime = createDateTime(match[3]);
        }

        if (dateTime) {
          const internetTime = convertToInternetTime(dateTime);
          const textNodes = Array.from(item.childNodes).filter(node => node.nodeType === Node.TEXT_NODE);
          textNodes.forEach((textNode) => {
            const textParts = textNode.textContent.match(new RegExp(`(.*)(${match[0]})(.*)`));
            if (textParts) {
              const newParts = [];

              if (textParts[1]) {
                newParts.push(document.createTextNode(textParts[1]));
              }

              if (textParts[2]) {
                const timeNode = document.createElement('time');
                timeNode.dateTime = dateTime.toISOString().replace(/^.*T|\+.*$|Z.*$/g, '');
                timeNode.title = match[0];
                timeNode.textContent = '@' + internetTime;
                newParts.push(timeNode);
              }

              if (textParts[3]) {
                newParts.push(document.createTextNode(textParts[3]));
              }
              newParts.forEach(part => item.insertBefore(part, textNode));
              textNode.remove();
              replacements++;
            }
          });
        }
      }
    }

    return replacements;
  }

  function createDateTime(time, meridiem) {
    const timeParts = time.match(/\d+/g);
    const dateTime = new Date();
    dateTime.setHours(meridiem && timeParts[0] == 12 ? 0 : timeParts[0], timeParts[1] || 0, timeParts[2] || 0, timeParts[3] || 0);
    if (meridiem && meridiem.startsWith('p')) {
      dateTime.setHours(dateTime.getHours() + 12);
    }
    return dateTime;
  }

  function convertToInternetTime(dateTime) {
    dateTime = new Date(dateTime.getTime());

    if (cfg.get('global_timezone')) {
      dateTime.setMinutes(dateTime.getMinutes() + dateTime.getTimezoneOffset() + 60);
    }

    const midnight = new Date(dateTime.getTime());
    midnight.setHours(0, 0, 0, 0);

    const msPastMidnight = dateTime - midnight;
    const decimal = (msPastMidnight / 86400000) * 1000;
    return Math.floor((decimal + Number.EPSILON) * 100) / 100
  }
})();