Fangame Archive Extension for greasemonkey/tampermonkey/violentmonkey

FangameArchiveExtension.js

// ==UserScript==
// @name        Fangame Archive Extension 
// @namespace   Violentmonkey Scripts
// @match       *://*.delicious-fruit.com/*
// @grant       none
// @version     1.0
// @author      Fangame Archive
// @description 5/2/2020, 1:55:35 AM
// ==/UserScript==

"use-strict";

const isOnGamePage = () => {
  return window.location.pathname === "/ratings/game_details.php";
}

const getGameLink = () => {
  return document.querySelector("#game-link");
}

const getNoLink = () => {
  return document.querySelector("#no-link");
}

const isPrivate = () => {
  return getGameLink().style.display === "none";
}

const getGameName = () => {
  return document.querySelector("#content h1").innerText.trim();
}

const generateFindURL = (gameName) => {
  return "https://fangamearchive.isocodes.org/find.php?game=" + encodeURIComponent(gameName);
}

const fetchURL = (url, callback) => {
  const xhr = new XMLHttpRequest();
  xhr.onreadystatechange = () => {
    if (xhr.readyState === 4)
      callback(xhr.response);
  }
  xhr.open("GET", url, true);
  xhr.send("");
}

if (isOnGamePage() && isPrivate()) {
  const gameName = getGameName();
  const findURL = generateFindURL(gameName);
  fetchURL(findURL, (downloadURL) => {
    if (downloadURL === "")
      return;
    getGameLink().style.display = "";
    getGameLink().setAttribute("href", downloadURL);
    getNoLink().style.display = "none";
  });
}