// ==UserScript==
// @name         WeiyunHelper
// @namespace    https://github.com/loo2k/WeiyunHelper/
// @version      0.0.5
// @description  微云下载时文件支持导出到 aria2 下载
// @author       Luke
// @match        https://www.weiyun.com/*
// @grant        none
// @run-at       document-end
// @supportURL   https://github.com/loo2k/WeiyunHelper/issues
// @downloadURL none
// ==/UserScript==

(function () {
  'use strict';

  Date.prototype.Format = function (fmt) {
    var o = {
      'M+': this.getMonth() + 1,
      'd+': this.getDate(),
      'h+': this.getHours(),
      'm+': this.getMinutes(),
      's+': this.getSeconds(),
      'q+': Math.floor((this.getMonth() + 3) / 3),
      S: this.getMilliseconds(),
    };
    if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + '').substr(4 - RegExp.$1.length));
    for (var k in o)
      if (new RegExp('(' + k + ')').test(fmt))
        fmt = fmt.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ('00' + o[k]).substr(('' + o[k]).length));
    return fmt;
  };

  const injectChunkId = Math.random().toString(36).substring(7);
  webpackJsonp([7891], {
    [injectChunkId]: function(modules, exports, require) {
      // 寻找云盘操作 API 模块
      const diskServices = Object.values(require.c)
        .filter((x) => x.exports && typeof x.exports.namespace === 'function' && typeof x.exports.namespace('PERSON').fetchUserInfo === 'function')
        .map((x) => x.exports.namespace);
      const diskService = diskServices && diskServices[0]('PERSON');

      if (diskServices.length === 0) {
        console.error('没有检测到适配模块，已退出 WeiyunHelper');
        console.error('你可以到 https://github.com/loo2k/WeiyunHelper/issues 向作者反馈问题')
        return false;
      }

      // 下载选中的文件
      function downloadSelectedFiles() {
        let request = null;
        const selected = document.querySelectorAll('.list-group-item.checked.act');
        const fileNodes = Array.from(selected).map(item => item.__vue__.fileNode);
        if (fileNodes.length === 1 && !fileNodes[0].isDir()) {
          request = diskService.fetchDownloadFileInfo({ fileNodes });
        } else {
          request = diskService.fetchPackDownloadDirFileInfo({ fileNodes });
        }

        request.then((ret) => {
          let downloadUrl = '';
          let cookieName = '';
          let cookieValue = '';
          let URI = {};
          let fileName = '';
          if (ret.file_list) {
            downloadUrl = ret.file_list[0].https_download_url;
            cookieName = ret.file_list[0].cookie_name;
            cookieValue = ret.file_list[0].cookie_value;
            URI = new URL(downloadUrl);
            fileName = decodeURI(URI.pathname.substr(URI.pathname.lastIndexOf('/') + 1));
          } else {
            downloadUrl = ret.https_download_url;
            cookieName = ret.cookie_name;
            cookieValue = ret.cookie_value;
            fileName = `微云合并下载文件_${new Date().Format('yyyy-MM-dd hh:mm:ss')}.zip`;
          }

          const ariaNgUrl = `http://aria2.me/aria-ng/#!/new/task?url=${btoa(downloadUrl)}&header=Cookie:${cookieName}=${cookieValue}&out=${encodeURI(fileName)}`;

          console.log('文件名称:', fileName);
          console.log('下载地址:', downloadUrl);
          console.log('请求参数:', `Cookie:${cookieName}=${cookieValue}`);
          console.log('AriaNg URL:', ariaNgUrl);

          // 使用 ariaNg 进行下载
          window.open(ariaNgUrl);
        }).catch(e => { alert(e.msg) });
      }

      // 监听 body 的 DOM 变化并将下载入口植入
      const observeTarget = document.body;
      const observeConfig = { attributes: true, childList: true, subtree: true };
      const observeCallback = function (mutations, observer) {
        for (let mutation of mutations) {
          if (mutation.type === 'childList' && mutation.addedNodes.length > 0) {
            mutation.addedNodes.forEach((node) => {
              // 判断页面中增加的元素是否是针对文件的下拉菜单
              if (
                node.className &&
                node.className.indexOf('mod-bubble-context-menu') > -1 &&
                node.__vue__ &&
                node.__vue__.items.some(e => e.method === 'download')
              ) {
                const contextItems = node.querySelectorAll('.menu-item');
                const newContextItem = document.createElement('li')
                newContextItem.className = 'menu-item';
                newContextItem.innerHTML = '<span class="txt">使用 Aria 下载</span>';
                newContextItem.addEventListener('click', function() {
                  downloadSelectedFiles();
                  // 关闭右键菜单
                  document.dispatchEvent(new Event('mousedown'));
                });
                contextItems[0].parentNode.insertBefore(newContextItem, contextItems[0].nextSibling);
              }
            })
          }

          // 针对顶部下载菜单
          if (
            mutation.type === 'attributes' &&
            mutation.attributeName === 'style' &&
            mutation.target.className.indexOf('mod-action-wrap-menu') > -1 &&
            mutation.target.style.display !== 'none' &&
            mutation.target.querySelectorAll('#action-item-aria').length === 0
          ) {
            const actionItems = mutation.target.querySelectorAll('.action-item');
            const newActionItem = document.createElement('div');
            newActionItem.id = 'action-item-aria'
            newActionItem.className = 'action-item';
            newActionItem.innerHTML = '<div class="action-item-con"><i class="icon icon-download"></i><span class="act-txt">使用 Aria 下载</span></div>';
            newActionItem.addEventListener('click', function () {
              downloadSelectedFiles();
            });
            mutation.target.insertBefore(newActionItem, actionItems[0].nextSibling);
          }
        }
      }
      const observeInstance = new MutationObserver(observeCallback);
      observeInstance.observe(observeTarget, observeConfig);
    }
  }, [injectChunkId]);

  // 打开离线下载窗口并填写链接
  const openModalBt = (text = '') => {
    let wyCreateBtn = document.querySelectorAll('.mod-action-wrap-create');
    let $wyCreateBtn = wyCreateBtn[0] && wyCreateBtn[0].__vue__;
    $wyCreateBtn.offlineDownload();

    // 点击使用磁力链下载
    let modalBtNav = document.querySelectorAll('.modal-dialog-bt .modal-tab-nav .tab-nav-item');
    modalBtNav.forEach(nav => {
      if (nav.innerText.trim() === '链接下载') {
        nav.click();
      }
    });

    setTimeout(() => {
      // 填写 magent 或者 ed2k 链接
      let urlTextarea = document.querySelector('.modal-dialog-bt .tab-cont-item.online .input-block');
      if (text) {
        urlTextarea.value = text;
        urlTextarea.dispatchEvent(new Event('input'));
      }
    }, 0);
  }

  // 粘贴磁力链或者 ed2k 时自动启动下载
  document.addEventListener('paste', (event) => {
    // 针对非输入框的粘贴时间
    if (['TEXTAREA', 'INPUT'].includes(event.target.tagName)) {
      return;
    }

    // 剪切板数据对象
    let clipboardData = event.clipboardData || window.clipboardData;

    // 剪切板对象可以获取
    if (!clipboardData) { return; }

    let paste = clipboardData.getData('text');
    let isEd2k = /^ed2k:\/\//ig.test(paste);
    let isMagent = /^magnet:/ig.test(paste);
    if (isEd2k || isMagent) {
      openModalBt(paste);
    }
  });
})();