// ==UserScript==
// @name        NexusPHP PT Helper
// @namespace   https://greasyfork.org/zh-CN/users/163820-ysc3839
// @version     0.1.1
// @description Helper script for NexusPHP based PT sites.
// @description:zh-cn 基于 NexusPHP 的 PT 站的辅助脚本
// @author      ysc3839
// @match       *://hdhome.org/*
// @require     https://cdn.jsdelivr.net/npm/jquery@3.3
// @grant       GM_setClipboard
// @downloadURL none
// ==/UserScript==

(function($) {
  'use strict';

  function extend(object, method, callback) {
    const original = object[method];

    object[method] = function(...args) {
      const value = original ? original.apply(this, args) : undefined;

      callback.apply(this, [value].concat(args));

      return value;
    };

    Object.assign(object[method], original);
  }
  
  function override(object, method, newMethod) {
    const original = object[method];

    object[method] = function(...args) {
      return newMethod.apply(this, [original.bind(this)].concat(args));
    };

    Object.assign(object[method], original);
  }

  $('html > head').append($(`<style>
.my_selected { background-color: #7c98ae; }
td.rowfollow button { font-size: 9pt; }
</style>`));

  if (window.location.pathname === '/details.php') {
    const b = $('#outer > table > tbody > tr:eq(5)').find('b');
    const url = new URL(b.text());
    localStorage.setItem('passkey', url.searchParams.get('passkey'));
    b.replaceWith($('<a>').addClass('altlink_blue').attr('title', b.attr('title')).attr('href', b.text()).text(b.text()).click(function(event) {
      event.preventDefault();
      GM_setClipboard(this.href);
      if (!$(this).data('copied'))
        $(this).data('copied', true).parent().prev().append('(已复制)');
    }));
  } else if (window.location.pathname === '/usercp.php') {
    const url = new URL(window.location);
    if(!url.searchParams.get('action')) {
      localStorage.setItem('passkey', $('#outer > table > tbody:eq(1) > tr:eq(3) > td:eq(1)').text());
    }
  }

  let passkey = localStorage.getItem('passkey');

  function getTorrentURL(urltext) {
    const url = new URL(urltext);
    const id = url.searchParams.get('id');
    return `https://hdhome.org/download.php?id=${id}&passkey=${passkey}`;
  }

  override(unsafeWindow, 'getusertorrentlistajax', function(original, userid, type, blockid) {
    if (original(userid, type, blockid)) {
      const blockdiv = $('#' + blockid);

      /*blockdiv.prepend($('<button>打开选中</button>').click(function() {
      }));*/
      blockdiv.prepend($('<button>复制选中链接</button>').click(function() {
        if (!passkey) {
          alert('No passkey!');
          return;
        }
        let text = '';
        $(this).parent().find('tr.my_selected > td:nth-child(4) > a').each(function() {
          text += getTorrentURL(this.href) + '\n';
        });
        GM_setClipboard(text);
      }));

      const trlist = blockdiv.find('table > tbody > tr');
      trlist.first().prepend('<td class="colhead" align="center">选中</td><td class="colhead" align="center">链接</td>');

      const seltd = $('<td class="rowfollow nowrap" style="padding: 0px;" align="center"></td>');
      const copytd = seltd.clone();
      seltd.append($('<input type="checkbox" style="zoom: 1.5;">').click(function(event) {
        $(this).parents().eq(1).toggleClass('my_selected');
      }).mousedown(function(e) { e.stopPropagation(); }));
      copytd.append($('<button>复制</button>').click(function() {
        if (!passkey) {
          alert('No passkey!');
          return;
        }
        GM_setClipboard(getTorrentURL($(this).parent().nextAll().eq(1).children('a').get(0).href));
        if (!$(this).data('copied'))
          $(this).data('copied', true).parent().append('<br>(已复制)');
      }));

      let mousedown = false;
      seltd.mousedown(function(event) {
        event.preventDefault();
        mousedown = true;
        $(this).children().click();
      }).mouseenter(function() {
        if (mousedown)
          $(this).children().click();
      });
      $(document).mouseup(function(event) {
        event.preventDefault();
        mousedown = false;
      });

      trlist.not(':first').prepend(copytd).prepend(seltd);
    }
    return true;
  });
})($.noConflict());