Torn - Bigger active chain timer

Make the chain timer larger only while it is actively counting down
换行
// ==UserScript==
// @name         Torn - Bigger active chain timer
// @namespace    LordTiny.torn.bigger-active-chain-timer
// @version      1.1.2
// @description  Make the chain timer larger only while it is actively counting down
// @author       LordTiny [4036444]
// @match        https://www.torn.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=torn.com
// @license      MIT
// @grant        none
// ==/UserScript==
 
(() => {
  'use strict';
 
  const STYLE_ID = 'bigger-active-chain-timer-style';
  const BIG_CLASS = 'chain-timer-big';
  const WARNING_CLASS = 'chain-timer-warning';
  const FLASH_CLASS = 'chain-timer-flash';
 
  function addStyle() {
    if (document.getElementById(STYLE_ID)) return;
 
    const style = document.createElement('style');
    style.id = STYLE_ID;
    style.textContent = `
      .${BIG_CLASS} {
        font-size: 60px !important;
        line-height: 1 !important;
        height: 62px !important;
        margin-top: 10px !important;
        margin-left: -70px !important;
      }

      .${WARNING_CLASS} {
        color: yellow !important;
        text-shadow: -3px -3px 5px rgba(255, 255, 0, .15), 3px 3px 5px rgba(255, 255, 0, .15) !important;
      }

      @keyframes subtleUrgentPulse {
        0% {
          transform: scale(1);
        }
        50% {
          transform: scale(1.08);
        }
        100% {
          transform: scale(1);
        }
      }

      .${FLASH_CLASS} {
        display: inline-block !important;
        transform-origin: center center !important;
        animation: subtleUrgentPulse 0.75s infinite !important;
      }
    `;
    document.head.appendChild(style);
  }
  
  function getSecondsRemaining(text) {
    const parts = text.trim().split(':');
    if (parts.length === 2) {
      const minutes = parseInt(parts[0], 10);
      const seconds = parseInt(parts[1], 10);
      if (!isNaN(minutes) && !isNaN(seconds)) {
        return (minutes * 60) + seconds;
      }
    }
    return null;
  }
  
  
    
 
  function isActiveTimerText(text) {
    const trimmed = text.trim();
 
    // Treat empty, zero, and common zero-time formats as inactive.
    return trimmed !== ''
      && trimmed !== '0'
      && trimmed !== '00'
      && trimmed !== '0:00'
      && trimmed !== '00:00'
      && trimmed !== '00:00:00';
  }
 
  function getTimerElement() {
    // Torn uses generated class names, so match on the stable class prefix instead of the whole class.
    return document.querySelector('[class*="bar-timeleft"]');
  }
 
  function updateTimerSize() {
    const timer = getTimerElement();
    if (!timer) return;

    const isActive = isActiveTimerText(timer.textContent);
    const secondsLeft = getSecondsRemaining(timer.textContent);
    const shouldWarn = isActive && secondsLeft !== null && secondsLeft <= 60 && secondsLeft > 30;
    const shouldFlash = isActive && secondsLeft !== null && secondsLeft <= 15;

    timer.classList.toggle(BIG_CLASS, isActive);
    timer.classList.toggle(WARNING_CLASS, shouldWarn);
    timer.classList.toggle(FLASH_CLASS, shouldFlash);
  }
 
  function start() {
    addStyle();
    updateTimerSize();
 
    const observer = new MutationObserver(updateTimerSize);
 
    observer.observe(document.body, {
      childList: true,
      subtree: true,
      characterData: true
    });
  }
 
  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', start);
  } else {
    start();
  }
})();