// ==UserScript==
// @name         Kill Google Sheets "Gemini" Sidebar
// @namespace    http://tampermonkey.net/
// @version      2.0
// @description  Auto-dismisses the Gemini sidebar when it appears in Google Sheets
// @match        https://docs.google.com/spreadsheets/*
// @grant        none
// @author       Ezra Kenigsberg, kudotek.com
// @copyright    Copyright 2026 Ezra Kenigsberg
// @license      MIT; https://opensource.org/licenses/MIT
// ==/UserScript==
(function () {
    'use strict';
    const LOG_PREFIX = '[Kill Gemini Sidebar]';
    function isVisible(el) {
        if (!el) return false;
        const style = window.getComputedStyle(el);
        return (
            style.display !== 'none' &&
            style.visibility !== 'hidden' &&
            el.getClientRects().length > 0
        );
    }
function findGeminiCloseButton() {
    // Never click Close controls inside dialogs such as Find and replace.
    const dialogSelector = [
        'dialog',
        '[role="dialog"]',
        '[role="alertdialog"]',
        '[aria-modal="true"]',
        '.modal-dialog'
    ].join(',');
    const selectors = [
        'button[aria-label="Close"]',
        '[role="button"][aria-label="Close"]',
        'button[aria-label="Close Gemini"]',
        '[role="button"][aria-label="Close Gemini"]',
        'button[aria-label="Close side panel"]',
        '[role="button"][aria-label="Close side panel"]',
        'button[data-tooltip="Close"]',
        '[role="button"][data-tooltip="Close"]'
    ];
    const candidates = document.querySelectorAll(selectors.join(','));
    for (const button of candidates) {
        if (!isVisible(button) || button.closest(dialogSelector)) {
            continue;
        }
        // An explicit Gemini close label needs no ancestor search.
        if (button.getAttribute('aria-label') === 'Close Gemini') {
            return button;
        }
        let ancestor = button.parentElement;
        for (
            let depth = 0;
            depth < 10 && ancestor;
            depth++, ancestor = ancestor.parentElement
        ) {
            // Don't use text from the whole page or a container
            // that also contains an unrelated dialog.
            if (
                ancestor === document.body ||
                ancestor === document.documentElement ||
                ancestor.matches(dialogSelector) ||
                ancestor.querySelector(dialogSelector)
            ) {
                break;
            }
            const text = ancestor.innerText || '';
            if (
                /\bGemini\b/i.test(text) ||
                /\bAsk Gemini\b/i.test(text) ||
                /\bBuild\b/i.test(text)
            ) {
                return button;
            }
        }
    }
    return null;
}
    function dismissGeminiPane() {
        const closeButton = findGeminiCloseButton();
        if (!closeButton) {
            return false;
        }
        console.log(LOG_PREFIX, 'Gemini sidebar found; closing it.');
        closeButton.click();
        return true;
    }
    /*
     * Gemini often appears a little after the spreadsheet itself loads.
     * MutationObserver catches DOM insertion, while the interval protects
     * against Google's SPA/rendering behavior where mutations aren't always
     * convenient to identify.
     */
    let lastAttempt = 0;
    function maybeDismiss() {
        const now = Date.now();
        // debounce the MutationObserver
        if (now - lastAttempt < 250) {
            return;
        }
        lastAttempt = now;
        dismissGeminiPane();
    }
    const observer = new MutationObserver(maybeDismiss);
    function start() {
        observer.observe(document.documentElement, {
            childList: true,
            subtree: true
        });
        // Immediate attempt
        dismissGeminiPane();
        // And keep checking because Sheets is a SPA and Gemini can load late.
        setInterval(dismissGeminiPane, 1000);
        console.log(LOG_PREFIX, 'Active.');
    }
    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', start, { once: true });
    } else {
        start();
    }
})();