User:SuperCode111/temp-user-watch.js

// ==UserScript==
// @name         Temp User Watch (1 hour)
// @description  Adds a "Watch (1h)" button next to Thank on diffs and notifies if that user edits again in the next hour
// ==/UserScript==

mw.loader.using(['mediawiki.util', 'mediawiki.api']).then(function () {
    const CHECK_INTERVAL = 30000; // 30 seconds
    const WATCH_DURATION = 60 * 60 * 1000; // 1 hour
    const NOTIFY_SOUND = 'https://upload.wikimedia.org/wikipedia/commons/4/4e/Notification.ogg';

    // Load/save temporary watchlist from localStorage
    function loadWatchlist() {
        return JSON.parse(localStorage.getItem('TempUserWatchList') || '{}');
    }
    function saveWatchlist(obj) {
        localStorage.setItem('TempUserWatchList', JSON.stringify(obj));
    }

    function addUser(username) {
        const list = loadWatchlist();
        list[username] = Date.now() + WATCH_DURATION;
        saveWatchlist(list);
        alert(`User ${username} is now watched for 1 hour.`);
    }

    function removeExpired() {
        const list = loadWatchlist();
        let changed = false;
        for (const u in list) {
            if (Date.now() > list[u]) {
                delete list[u];
                changed = true;
            }
        }
        if (changed) saveWatchlist(list);
    }

    // Check watched users for edits
    async function checkUsers() {
        const list = loadWatchlist();
        for (const username in list) {
            // API query: get latest contribution
            try {
                const result = await (new mw.Api()).get({
                    action: 'query',
                    list: 'usercontribs',
                    ucuser: username,
                    uclimit: 1,
                    format: 'json'
                });
                const uc = result.query.usercontribs[0];
                if (!uc) continue;
                const lastEditTime = new Date(uc.timestamp).getTime();
                if (!list[username + '_last']) list[username + '_last'] = 0;
                if (lastEditTime > list[username + '_last']) {
                    // Notify
                    if (Notification.permission !== 'granted') Notification.requestPermission();
                    new Notification('Watched user edited!', {
                        body: `${username} edited [[${uc.title}]]`,
                        icon: 'https://upload.wikimedia.org/wikipedia/commons/6/63/Wikipedia-logo.png'
                    });
                    new Audio(NOTIFY_SOUND).play();
                    list[username + '_last'] = lastEditTime;
                    saveWatchlist(list);
                }
            } catch(e) { console.error(e); }
        }
    }

    // Add "Watch (1h)" button next to Thank on diffs
    function addButtons() {
        const userLinks = document.querySelectorAll('.mw-userlink');
        userLinks.forEach(link => {
            const username = link.textContent.trim();
            if (link.nextSibling && link.nextSibling.className === 'temp-watch-btn') return;
            const btn = document.createElement('a');
            btn.textContent = '| Watch (1h)';
            btn.href = '#';
            btn.className = 'temp-watch-btn';
            btn.style.marginLeft = '4px';
            btn.addEventListener('click', e => {
                e.preventDefault();
                addUser(username);
            });
            link.parentNode.insertBefore(btn, link.nextSibling);
        });
    }

    // Initial setup
    removeExpired();
    addButtons();
    setInterval(() => { removeExpired(); checkUsers(); }, CHECK_INTERVAL);
});