// ==UserScript==
// @name         Automatic channel tab switch
// @namespace    http://tampermonkey.net/
// @version      0.5
// @description  Switches automatically to the videos tab if a channel or user page is requested
// @author       Jason Schilling <jason.schilling@sourecode.de>
// @updateURL    https://gist.github.com/chapterjason/63d2273f3d02a4ad40fd789101f8991d/raw/auto-switch.js
// @downloadURL  https://gist.github.com/chapterjason/63d2273f3d02a4ad40fd789101f8991d/raw/auto-switch.js
// @match        https://www.youtube.com/*
// @run-at       document-end
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    function notEmptyFilter(item){
        return item.length;
    }

    console.info("Automatic tab switch loaded!");

    document.addEventListener('yt-navigate-start', function(event){
        execute(event.detail.url);
        return false;
    });

    function execute(url){
        const parts = url.split('/').filter(notEmptyFilter);
        if(parts.length === 2 && (parts[0] === 'user' || parts[0] === 'channel')){
            const target = location.href + '/videos';
            location.href = target
            location.replace(target);
        }
    }

    execute(location.pathname);
})();