Pixiv Auto Like

Click **like** automatically in new illust pages
当前为 2018-07-27 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name         Pixiv Auto Like
// @name:zh-TW   Pixiv 自動點讚
// @description        Click **like** automatically in new illust pages
// @description:zh-TW  在新版頁面自動點讚
// @namespace    https://github.com/FlandreDaisuki
// @version      1.1.0
// @author       FlandreDaisuki
// @include      *://www.pixiv.net/member_illust.php?*&mode=medium
// @include      *://www.pixiv.net/member_illust.php?mode=medium&*
// @grant        none
// @compatible   firefox
// @compatible   chrome
// @noframes
// ==/UserScript==
/* eslint-disable camelcase, no-param-reassign */
/* global globalInitData */

const liked = new Set();

// wait until React ready... fucking slow...
const tid = setInterval(() => {
  const mainTarget = document.querySelector('figure');
  if (mainTarget) {
    clearInterval(tid);
    main(mainTarget);
  }
}, 500);

function main(targetElement) {
  postLike();

  const config = {
    attributes: true,
    childList: true,
    characterData: true,
    subtree: true,
  };

  const wrapperObserver = new MutationObserver((mrs) => {
    if (mrs.length === 1) {
      postLike();
    }
  });

  wrapperObserver.observe(targetElement, config);
}

async function postLike() {
  const likeBtn = document.querySelector('button.Ki5EGTG');
  const likeSVG = document.querySelector('svg.v2zpsfm');
  const sp = new URLSearchParams(location.search);
  const illust_id = sp.get('illust_id');

  if (liked.has(illust_id)) {
    changeLikedStyle(likeBtn, likeSVG);
    return;
  }

  if (likeBtn && !likeBtn.classList.contains('_2iDv0r8')) {
    const resp = await fetch('/ajax/illusts/like', {
      method: 'POST',
      headers: {
        Accept: 'application/json',
        'Content-Type': 'application/json',
        'x-csrf-token': globalInitData.token,
      },
      credentials: 'same-origin',
      body: JSON.stringify({
        illust_id,
      }),
    });

    const data = await resp.json();
    if (!data.error) {
      changeLikedStyle(likeBtn, likeSVG);
      liked.add(illust_id);
    }
  }
}

function changeLikedStyle(likeBtn, likeSVG) {
  if (likeBtn) {
    likeBtn.classList.add('_2iDv0r8');
  }
  if (likeSVG) {
    likeSVG.classList.add('_1YUwQdz');
    likeSVG.innerHTML = `
<path d="M5,7.08578644 L9.29289322,2.79289322 C9.68341751,2.40236893 10.3165825,2.40236893 10.7071068,
2.79289322 C11.0976311,3.18341751 11.0976311,3.81658249 10.7071068,4.20710678 L5,9.91421356 L2.29289322,
7.20710678 C1.90236893,6.81658249 1.90236893,6.18341751 2.29289322,5.79289322 C2.68341751,5.40236893 3.31658249,
5.40236893 3.70710678,5.79289322 L5,7.08578644 Z"></path>`;
  }
}
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