// Go to the following link in your YouTube: https://www.youtube.com/feed/channels
// Scroll the page all the way down until you reach the very last subscribed channel in your list

const DELAY = 100;
const delay = ms => new Promise(res => setTimeout(res, ms));

const list = document.querySelectorAll("#grid-container > ytd-channel-renderer");

for (let index = 0; index < list.length; index++) {
    console.log("")
    console.log(index, list.length - index)
    const sub = list[index];
    sub.scrollIntoView();
    console.log(sub.querySelector("ytd-channel-name").innerText);
    console.log(sub.querySelector("#notification-preference-button").innerText);

    const preferences = Array.from(sub.querySelectorAll("#notification-preference-button button"));
    const subscribed = preferences.find(el => {
        return el.textContent.includes("Subscribed");
    });
    if (subscribed) {
        subscribed.click();
        await delay(DELAY);
    }

    const services = Array.from(document.querySelectorAll("#items > ytd-menu-service-item-renderer"));
    const unsubscribe = services.find(el => {
        return el.textContent.includes("Unsubscribe");
    });
    if (unsubscribe) {
        unsubscribe.click();
        await delay(DELAY);
    }

    const confirm = document.querySelector("#confirm-button button");
    if (confirm) {
        confirm.click();
        await delay(DELAY);
    }

    console.log(sub.querySelector("#subscribe-button").innerText)
}