gensh auto

// ==UserScript==
// @name        Genshin Daily Check-In
// @namespace   Violentmonkey Scripts
// @match       https://webstatic-sea.mihoyo.com/ys/event/signin-sea/index.html?act_id=e202102251931481*
// @grant       none
// @run-at      document-end
// @version     2.0
// @author      h010c
// @description Genshin Daily Check-In
// @icon        https://i.imgur.com/H8yt3g7.png
// ==/UserScript==

var hoursGenshin = 16;  // UTC time when Genshin jumps to the "next day"
var lang = "en";
var table;

if (/^(?:ru|uk)\b/.test(navigator.language) || document.URL.slice(-5) === "ru-ru") {
  lang = "ru";
}

checkLoot();

function checkLoot(reload = false) {
  if (reload) {
    table = 0;
    document.location.reload();
    return;
  }

  // element containing list of daily loot
  if (!table) {
    table = document.getElementsByClassName("components-home-assets-__sign-content_---list---3L0nzm")[0];
    setTimeout(checkLoot, 5000);
    return;
  }

  let timeNow = new Date();

  // show timers on webpage
  let elemNote = document.getElementsByClassName("components-home-assets-__sign-content_---desc---oUGkHX")[0];
  if (elemNote) {
    if (lang === "ru") {
      elemNote.innerText = `Лут проверен ${timeNow.toLocaleDateString()} в ${timeNow.toLocaleTimeString()}`;
    } else {
      elemNote.innerText = `Loot checked ${timeNow.toLocaleDateString()} at ${timeNow.toLocaleTimeString()}`;
    }
  }
  console.log("Loot checked at " + timeNow.toLocaleTimeString());

  // notification indicator on loot waiting to be acquired
  let elem = table.getElementsByClassName("components-home-assets-__sign-content_---badge---26v3dm")[0];
  if (elem) {
    elem.parentNode.click();
  }

  // setting up the next check
  let hoursUTCNow = timeNow.getUTCHours();
  let hoursLeft =  hoursUTCNow <= hoursGenshin ? hoursGenshin - hoursUTCNow : 24 + hoursGenshin - hoursUTCNow;
  let minutesNow = timeNow.getMinutes();
  let minutesLeft = 60 - minutesNow;

  setTimeout( checkLoot, ((hoursLeft * 60 + minutesLeft + 5) * 60000), true );
  if (elemNote) {
    if (lang === "ru") {
      elemNote.innerText += `; следующая проверка через ${minutesLeft > 54 ? hoursLeft + 1 : hoursLeft} часов ${minutesLeft > 54 ? minutesLeft - 55 : minutesLeft + 5} минут.`;
    } else {
      elemNote.innerText += `; next loot check in ${minutesLeft > 54 ? hoursLeft + 1 : hoursLeft} hours ${minutesLeft > 54 ? minutesLeft - 55 : minutesLeft + 5} minutes.`;
    }
  }
  console.log("Next loot check in %.2d:%.2d:00", (minutesLeft > 54 ? hoursLeft + 1 : hoursLeft), (minutesLeft > 54 ? minutesLeft - 55 : minutesLeft + 5));
  return;
}