Adds word counts to chapter links on AO3 Chapter Index pages.
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// ==UserScript==
// @name AO3 Word Count Script
// @name:ru Скрипт подсчета слов на AO3
// @version 2
// @description Adds word counts to chapter links on AO3 Chapter Index pages.
// @description:ru Добавляет количество слов к ссылкам на главы на страницах индекса глав AO3.
// @author Anton Dumov
// @license MIT
// @match https://archiveofourown.org/*/navigate
// @grant none
// @namespace http://tampermonkey.net/
// ==/UserScript==
(function() {
'use strict';
const wordCountRegex = /\s+/g;
const cacheKeyPrefix = "ao3-word-count-cache-";
const cacheDurationMs = 24 * 60 * 60 * 1000; // 24 hours in milliseconds
const getCachedWordCount = link => {
const cacheKey = cacheKeyPrefix + link.href;
const cachedValue = localStorage.getItem(cacheKey);
if (cachedValue) {
const { timestamp, wordCount } = JSON.parse(cachedValue);
if (Date.now() - timestamp < cacheDurationMs) {
return wordCount;
} else {
localStorage.removeItem(cacheKey);
}
}
return null;
};
const setCachedWordCount = (link, wordCount) => {
const cacheKey = cacheKeyPrefix + link.href;
const cacheValue = JSON.stringify({ timestamp: Date.now(), wordCount });
localStorage.setItem(cacheKey, cacheValue);
};
const chapterLinks = document.querySelectorAll("ol.chapter.index.group li a");
chapterLinks.forEach(link => {
const cachedWordCount = getCachedWordCount(link);
if (cachedWordCount) {
const spanElement = link.parentElement.querySelector('span.datetime');
const wordCountElement = document.createElement("span");
wordCountElement.textContent = ` (${cachedWordCount} words)`;
spanElement.parentNode.insertBefore(wordCountElement, spanElement.nextSibling);
} else {
fetch(link.href).then(response => response.text())
.then(text => {
const parser = new DOMParser();
const doc = parser.parseFromString(text, "text/html");
const article = doc.querySelector("div[role=article]");
const wordCount = article ? article.textContent.trim().split(wordCountRegex).length : 0;
setCachedWordCount(link, wordCount);
const spanElement = link.parentElement.querySelector('span.datetime');
const wordCountElement = document.createElement("span");
wordCountElement.textContent = ` (${wordCount} words)`;
spanElement.parentNode.insertBefore(wordCountElement, spanElement.nextSibling);
})
.catch(error => console.log(error));
}
});
})();