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CF-Predictor

This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.

当前为 2018-04-10 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         CF-Predictor
  3. // @version      1.2.2
  4. // @description  This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.
  5. // @author       Originally by WslF, Edited by ZZYSonny
  6. // @match        http://codeforces.com/contest/*/standings*
  7. // @connect      cf-predictor-frontend.herokuapp.com
  8. // @grant        GM_xmlhttpRequest
  9. // @namespace    https://greasyfork.org/users/169007
  10. // ==/UserScript==
  11.  
  12. (function() {
  13.     'use strict';
  14.     var partyNum = 0;
  15.     var results = [];
  16. 	showDeltas();
  17.  
  18.     function modifyPartyHtml(index, elem) {
  19.         var delta = '?';
  20.         var rank = ' ';
  21.         var seed = ' ';
  22.  
  23.         if (partyNum > 0) {
  24.             var handle = $(elem).find("td:eq(1)").find("a").last().html();
  25.             if (handle) {
  26.                 //next 2 lines - fix for legendary grandmaster
  27.                 handle = handle.replace('<span class="legendary-user-first-letter">','');
  28.                 handle = handle.replace('</span>','');
  29.                 if (handle in results) {
  30.                     delta = results[handle].delta;
  31.                     rank = results[handle].rank;
  32.                     seed = results[handle].seed;
  33.                 }
  34.             }
  35.         }
  36.  
  37.         var darkClass = "";
  38.         if (partyNum % 2 == 1) {
  39.             darkClass = "dark ";
  40.         }
  41.         var text;
  42.         if (partyNum == 0) {
  43.             text = "<th class='top right' style='width: 4em;'><span title='Rating change''>&Delta;</span></th>";
  44.         } else {
  45.             if (delta > 0) {
  46.                 text = "<td class='" + darkClass + "right'><span style='color:green;font-weight:bold;'>+" + delta + "</span></td>";
  47.             } else {
  48.                 text = "<td class='" + darkClass + "right'><span style='color:gray;font-weight:bold;'>" + delta + "</span></td>";
  49.             }
  50.         }
  51.  
  52.         partyNum++;
  53.         $(elem).append(text);
  54.         /*
  55. 	text = "<td class='" + darkClass + "right'><span style='color:green;'>" + rank + "</span></td>";
  56. 	$(elem).append(text);
  57. 	text = "<td class='" + darkClass + "right'><span style='color:green;'>" + seed + "</span></td>";
  58. 	$(elem).append(text);
  59. 	*/
  60.     }
  61.  
  62.     function showDeltas() {
  63.         var count = $(".standings").find("tr").length;
  64.         if (count > 2) {
  65.             var contestId = document.location.href.replace(/\D+/ig, ',').substr(1).split(',')[0];
  66.             getDeltas(contestId, function() {
  67.                 $(".standings").find("tr").first().find("th").last().removeClass("right");
  68.                 $(".standings").find("tr").find("td").removeClass("right");
  69.                 $(".standings").find("tr").each(modifyPartyHtml);
  70.                 if (count % 2 == 0) {
  71.                     $(".standings").find("tr").last().find("td").last().replaceWith("<td class='smaller bottom right dark'>&Delta;</td>");
  72.                 } else {
  73.                     $(".standings").find("tr").last().find("td").last().replaceWith("<td class='smaller bottom right'>&Delta;</td>");
  74.                 }
  75.             });
  76.         }
  77.     }
  78.  
  79.     function getDeltas(contestId, callback) {
  80.         //var localServer = "http://localhost:8084/CF-PredictorFrontEnd/"
  81.         var herokuServer = "https://cf-predictor-frontend.herokuapp.com/";
  82.         var page = 	"GetNextRatingServlet?contestId=" + contestId;
  83.  
  84. 		var server = herokuServer + page;
  85. 		GM_xmlhttpRequest({
  86.             method: "GET",
  87.             url: server,
  88.             onload: function(res) {
  89.                 var text = res.responseText;
  90.                 var data = JSON.parse(text);
  91.                 for (var i = 0; i < data.result.length; i++) {
  92.                     var handle = data.result[i].handle;
  93. 					var delta = data.result[i].newRating - data.result[i].oldRating;
  94. 					var rank = data.result[i].rank;
  95. 					var seed = data.result[i].seed;
  96. 					var ret = {
  97. 						delta : delta,
  98. 						seed : seed,
  99. 						rank : rank
  100. 					};
  101. 					results[handle] = ret;
  102.                 }
  103.                 callback();
  104.             }
  105. 		});
  106.     }
  107. })();