// ==UserScript==
// @name         Filter remover
// @version      1.13
// @namespace    filter.404
// @license      GNU General Public License v3.0
// @description  用于去除网页灰色滤镜
// @author       eduarte
// @match      http://*/*
// @match      https://*/*
// @run-at       document-end
// ==/UserScript==

//
// 没有真相的致哀是对牺牲者的亵渎
// 一个阻止人们自发纪念活动的政府，更没有资格搞什么「公祭日」
// 我们需要这种带着反思的具体的悼念，希望将来某天，除了反思，还有追责
//

(function () {
  "use strict";
  let style = document.createElement("style");
  style.innerHTML =
    "*, html, body{filter: none !important; -webkit-filter: none !important; -moz-filter: none !important; background-blend-mode: normal !important}";
  document.body.appendChild(style);
  let imgs = document.getElementsByTagName("img");
  for (let index in imgs) {
    if (imgs[index].getAttribute) {
      if (imgs[index].getAttribute("src") !== null) {
        imgs[index].setAttribute(
          "src",
          imgs[index].getAttribute("src").replace("_gray", "")
        );
      }
      if (imgs[index].getAttribute("data-src") !== null) {
        imgs[index].setAttribute(
          "data-src",
          imgs[index].getAttribute("data-src").replace("_gray", "")
        );
      }
    }
  }
  const removeFilter = () => {
    document.documentElement.style.setProperty("filter", "none", "important");
    document.body.style.setProperty("filter", "none", "important");
    // weibo
    let elems = document.querySelectorAll("[class*='gray']");
    for (let index in elems) {
      if (elems[index].getAttribute) {
        let classVal = elems[index].getAttribute("class");
        elems[index].setAttribute("class", classVal.replace("gray", ""));
      }
    }
  };

  // 移除 115 MemorialStyle
  const remove115 = () => {
    if (unsafeWindow.MemorialStyle) {
      unsafeWindow.MemorialStyle.sheet.removeRule();
    }
  };
  remove115();

  let patience = 20;
  let interval;

  window.onload = () => {
    interval = setInterval(() => {
      // if (window.MemorialStyle && window.MemorialStyle.sheet){window.MemorialStyle.sheet.removeRule()}
      if (document.querySelectorAll("[class*='gray']").length > 0) {
        removeFilter();
        patience = 20;
      }
      patience--;
      if (patience === 0) clearInterval(interval);
    }, 100);
  };
})();