Auto-select Single Google Account

Auto-clicks the only account, or the sun-asterisk account when app_domain contains sun-asterisk

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

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

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

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

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

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.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         Auto-select Single Google Account
// @namespace    https://accounts.google.com
// @version      1.1
// @description  Auto-clicks the only account, or the sun-asterisk account when app_domain contains sun-asterisk
// @match        https://accounts.google.com/o/oauth2/auth*
// @match        https://accounts.google.com/v3/signin/accountchooser*
// @run-at       document-end
// @license MIT
// ==/UserScript==

(function () {
    'use strict';

    const SUN_MARKER = 'sun-asterisk';

    function decodeURIComponentSafe(s) {
        try {
            return decodeURIComponent(s);
        } catch {
            return s;
        }
    }

    /** True when query param app_domain contains sun-asterisk (case-insensitive). */
    function appDomainHasSunAsterisk() {
        const params = new URLSearchParams(window.location.search);
        const raw = params.get('app_domain') || '';
        const decoded = decodeURIComponentSafe(raw);
        const needle = SUN_MARKER.toLowerCase();
        return (
            raw.toLowerCase().includes(needle) ||
            decoded.toLowerCase().includes(needle)
        );
    }

    function clickIfSingleAccount() {
        const accounts = document.querySelectorAll('div[data-identifier]');
        if (accounts.length === 1) {
            console.log('✅ One Google account detected, auto-selecting...');
            accounts[0].click();
            return;
        }
        if (accounts.length > 1 && appDomainHasSunAsterisk()) {
            const needle = SUN_MARKER.toLowerCase();
            const match = [...accounts].find((el) => {
                const id = (el.getAttribute('data-identifier') || '').toLowerCase();
                return id.includes(needle);
            });
            if (match) {
                console.log('✅ Multiple accounts; app_domain has sun-asterisk — selecting matching account.');
                match.click();
                return;
            }
            console.log('ℹ️ Multiple accounts and app_domain has sun-asterisk, but no account email contains sun-asterisk.');
            return;
        }
        console.log(`ℹ️ ${accounts.length} Google accounts detected — skipping auto-click.`);
    }

    // Handle dynamically loaded content
    const observer = new MutationObserver((_, obs) => {
        if (document.querySelectorAll('div[data-identifier]').length > 0) {
            clickIfSingleAccount();
            obs.disconnect();
        }
    });

    observer.observe(document.body, { childList: true, subtree: true });

    // Fallback (in case MutationObserver misses it)
    setTimeout(clickIfSingleAccount, 1000);
})();