// ==UserScript==
// @name        Invidious Instance Switcher
// @namespace   Violentmonkey Scripts
// @match       https://invidious.snopyta.org/*
// @match       https://invidious.13ad.de/*
// @match       https://invidious.kavin.rocks/*
// @grant       none
// @version     1.1
// @author      BErnd14
// @description Adds a link with a random public Invidious alternative to easily switch Invidious instances.
// ==/UserScript==
var instances = ["https://invidious.snopyta.org",
"https://invidious.13ad.de",
"https://invidious.kavin.rocks"];
function shuffleArray(array) {
for (let i = array.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
[array[i], array[j]] = [array[j], array[i]];
}
}
function getIndex(array) {
for (var i = 0; i < instances.length; i++) {
if (window.location.href.includes(instances[i])) {
return i;
}
}
return 0;
}
shuffleArray(instances);
var found_at_index = getIndex(instances);
var next_instance = (found_at_index + 1) % instances.length;
if (!window.location.pathname.includes("/embed/")) {
var instance_switch = document.createElement("a");
instance_switch.setAttribute('href', instances[next_instance] + window.location.pathname + window.location.search);
instance_switch.innerHTML = "Next instance (" + instances[next_instance] + ")";
document.body.prepend(instance_switch);
}