Iwara Custom Sort

Automatically sort video results in a page on /videos, /images, /subscriptions, /users, and sidebars using customizable sort function.
当前为 2019-02-10 提交的版本，查看最新版本。
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// ==UserScript==
// @name     Iwara Custom Sort
// @version  0.117
// @grant    GM.setValue
// @grant    GM.getValue
// @grant    GM.deleteValue
// @match    https://ecchi.iwara.tv/*
// @match    https://www.iwara.tv/*
// @match    http://ecchi.iwara.tv/*
// @match    http://www.iwara.tv/*
// @description  Automatically sort video results in a page on /videos, /images, /subscriptions, /users, and sidebars using customizable sort function.
// @namespace https://gf.qytechs.cn/users/245195
// ==/UserScript==

/* jshint esversion: 6 */

const logDebug = (...args) => {
  const debugging = true;
  if (debugging) {
  	console.log(...args);
  }
}

logDebug('Parsed.');

const parsePrefixed = (str) => {
  return Number.parseFloat(str) * (str.includes('k') ? 1000 : 1);
}

const sortVideos = (container, sortValueExpression) => {
  const videoDivs = Array.from(container.querySelectorAll('.clearfix'));
  const views = videoDivs.map(div => div.querySelector('.glyphicon-eye-open'))
    .map(div => div ? parsePrefixed(div.parentElement.textContent) : 0);
  const likes = videoDivs.map(div => div.querySelector('.glyphicon-heart'))
    .map(div => div ? parsePrefixed(div.parentElement.textContent) : 0);
  const videoEntries = Object.entries(videoDivs);
  GM.setValue('sortValue', sortValueExpression);
  const evalSortValue = (views, likes) => {
    const ratio = Math.min(likes / Math.max(1, views), 1);
    return eval(sortValueExpression);
  }
  videoEntries.sort((entryA, entryB) => {
    return evalSortValue(views[entryB[0]], likes[entryB[0]]) - evalSortValue(views[entryA[0]], likes[entryA[0]]);
  });
  videoDivs.map(div => div.parentElement)
    .forEach((div, index) => {
    div.append(videoEntries[index][1]);
  });
};

const sortAllVideos = (containers, sortValueExpression) => {
  let containerCount = 0;
  try {
    containers.forEach((container) => {
      sortVideos(container, sortValueExpression);
      containerCount++;
    });
  } catch (message) {
    alert(message);
  }
  logDebug(`${containerCount} containers sorted.`);
};

const requestMorePages = async (URL, pageCount) => {
  /*
  const params = URL.searchParams;
  const page =params.has('page') ? Number.parseInt(params.get('page')) : 0;
  params.set('page', page + 1);
  try {
    const newPage = await fetch(URL);
    logDebug(page, pageCount, URL, new DOMParser().parseFromString(await newPage.text(), 'text/html'));
  } catch (message) {
    logDebug(message);
  }
  */
}

(async () => {
  const videoContainers = Array.from(document.querySelectorAll('.views-responsive-grid'));
  if (videoContainers.length === 0) {
    return;
  }
  const currentURL = new URL(location);
  if (/\/(videos|images|subscriptions)/.test(currentURL.pathname)) {
    const additionalPageCount = 2;
    requestMorePages(currentURL, additionalPageCount);
  }
  const sortValueInput = document.createElement('input');
  sortValueInput.type = 'text';
  sortValueInput.value = await GM.getValue('sortValue', '100 * ratio + Math.sqrt(likes) / 25');
  const UIDiv = document.createElement('div');
  UIDiv.style.display = 'inline';
  UIDiv.style.margin = '5px';
  UIDiv.append(sortValueInput);
  const sortButton = document.createElement('button');
  sortButton.innerHTML = 'Sort';
  UIDiv.append(sortButton);
  sortValueInput.addEventListener('keyup',  (event) => {
    if (event.key !== "Enter") {
      return;
    }
    sortButton.click();
    event.preventDefault();
  });
  const temp = document.querySelector('.list-inline');
  if (temp) {
    temp.append(UIDiv);
  } else {
    document.querySelector('#user-links').insertAdjacentElement('afterbegin', UIDiv);
  }
  sortButton.addEventListener('click', () => sortAllVideos(videoContainers, sortValueInput.value));
  sortAllVideos(videoContainers, sortValueInput.value);
})();
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