☰

Discord channel switcher

switch between last two discord channels using caps

// ==UserScript==
// @name         Discord channel switcher
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  switch between last two discord channels using caps
// @author       You
// @match        https://discord.com/channels/*
// @grant        none
// ==/UserScript==

(function () {
    'use strict';

    let channelHistory = [];

    function getCurrentChannelPath() {
        return window.location.pathname;
    }

    function navigateToChannel(path) {
        if (window.location.pathname !== path) {
            window.history.pushState({}, '', path);
            window.dispatchEvent(new PopStateEvent('popstate'));
        }
    }

    function updateChannelHistory() {
        const currentPath = getCurrentChannelPath();
        if (channelHistory.length === 0 || channelHistory[channelHistory.length - 1] !== currentPath) {
            channelHistory.push(currentPath);
            if (channelHistory.length > 2) {
                channelHistory.shift();
            }
        }
    }

    updateChannelHistory();

    window.addEventListener('popstate', updateChannelHistory);
    window.addEventListener('pushstate', updateChannelHistory);
    window.addEventListener('replacestate', updateChannelHistory);

    const originalPushState = history.pushState;
    history.pushState = function () {
        originalPushState.apply(this, arguments);
        window.dispatchEvent(new Event('pushstate'));
    };

    const originalReplaceState = history.replaceState;
    history.replaceState = function () {
        originalReplaceState.apply(this, arguments);
        window.dispatchEvent(new Event('replacestate'));
    };

    window.addEventListener('keydown', function (e) {
        if (e.code === 'CapsLock') {
            e.preventDefault();
            e.stopPropagation();

            if (channelHistory.length === 2) {
                const currentPath = getCurrentChannelPath();
                const targetPath = channelHistory.find(path => path !== currentPath);
                if (targetPath) {
                    navigateToChannel(targetPath);
                }
            }
        }
    }, true);
})();