// ==UserScript==
// @name                 No GIF Avatars
// @name:zh-CN           屏蔽 GIF 头像
// @namespace            https://www.pipecraft.net/
// @homepageURL          https://github.com/utags/utags#readme
// @supportURL           https://github.com/utags/utags/issues
// @version              0.0.1
// @description          Convert GIF avatars into static images
// @description:zh-CN    将动图头像转换为静态图片。
// @author               Pipecraft
// @license              MIT
// @match                https://linux.do/*
// @match                https://www.nodeloc.com/*
// @icon                 https://www.google.com/s2/favicons?sz=64&domain=github.com
// @grant                GM_addStyle
// @downloadURL https://update.greasyfork.icu/scripts/529447/No%20GIF%20Avatars.user.js
// @updateURL https://update.greasyfork.icu/scripts/529447/No%20GIF%20Avatars.meta.js
// ==/UserScript==

;(function () {
  "use strict"

  const style = `
  .PostUser-name .username {
    text-shadow: unset !important;
    animation: unset !important;
  }

  .fa-beat {
    animation-name: unset !important;
  }

  .UserBadge {
    animation: unset !important;
  }

  .decorationAvatarFrameImageSource {
    display: none;
  }
  `
  GM_addStyle(style)

  function shouldUpdateWhenNodeUpdated(nodeList) {
    for (const node of nodeList) {
      if (node.nodeName === "IMG") {
        return true
      }
    }

    return false
  }

  function replaceImgSrc() {
    document.querySelectorAll("img").forEach((element) => {
      element.src = element.src.replace(".gif", ".png")
    })
  }

  const observer = new MutationObserver(async (mutationsList) => {
    let shouldUpdate = false
    for (const mutationRecord of mutationsList) {
      if (1 || shouldUpdateWhenNodeUpdated(mutationRecord.addedNodes)) {
        shouldUpdate = true
        break
      }
    }

    if (shouldUpdate) {
      setTimeout(replaceImgSrc, 10)
    }
  })

  observer.observe(document, {
    childList: true,
    subtree: true,
  })
  replaceImgSrc()
})()