// ==UserScript==
// @name         Bypass detectDevTools
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Prevents devtools detection
// @author       Some guy that hates devtools detection
// @match        *://*/*
// @grant        none
// @run-at       document-start
// ==/UserScript==

(function() {
    'use strict';

    // Prevent window.devtools detection
    Object.defineProperty(window, 'devtools', {
        get: function() {
            return { isOpen: false };
        },
        set: function(_) {}
    });

    // Stop detection scripts that rely on debugger statement
    const oldDebugger = window.debugger;
    window.debugger = function() {};

    // Patch console methods to prevent bait detection
    console.debug = console.log = console.info = console.warn = console.error = function() {};

    // Block devtoolschange event
    window.addEventListener('devtoolschange', e => {
        e.stopImmediatePropagation();
    }, true);

    // Patch Date to prevent timing-based detection
    const origDateNow = Date.now;
    Date.now = function() {
        return origDateNow() + Math.floor(Math.random() * 50);
    };

    // Patch performance.now too
    if (window.performance && window.performance.now) {
        const origPerfNow = window.performance.now.bind(window.performance);
        window.performance.now = function() {
            return origPerfNow() + Math.random() * 10;
        };
    }
})();