lepratranslate.user.js

// ==UserScript==
// @name lepratranslate
// @author RubaXa <trash@rubaxa.org>
// @license MIT
// @version 0.0.1
// @include http://leprosorium.ru/*
// ==/UserScript==


/*global unsafeWindow*/
(function (window){
	'use strict';

	(function (factory){
		// Export
		var script = document.createElement('script');
		script.textContent = '(' + factory + ')();';
		window.document.body.appendChild(script);
	})(function (){
		'use strict';

		var TEXTOMATE_URL = '/fraud/textomate/';
		var MONTHS_MAP = {
			'Января': 1,
			'Февраля': 2,
			'Марта': 3,
			'Апреля': 4
		};
		var words = []; // Список замен


		function load(url, callback){
			var xhr = new XMLHttpRequest;
			xhr.open('GET', url, true);
			xhr.onload = function (){
				callback(xhr.responseText);
			};
			xhr.send();
		}


		function matchAll(str, regexp){
			var result = [], match;
			while( match = regexp.exec(str) ){
				result.push(match);
			}
			return result;
		}


		function toRegExp(str, word){
			return new RegExp(str.replace(/([()[{*+.$^\\|?])/g, '\\$1'), 'g');
		}


		function parseDate(day, month, year, time){
			return new Date(year+'-'+MONTHS_MAP[month]+'-'+day+' '+time);
		}


		function parseWords(html){
			var word_to = matchAll(html, /"fow_to_word">(.*?)</g);
			var expires = matchAll(html, /(\d+)&nbsp;([а-я]+)&nbsp;(\d+),&nbsp;(\d+:\d+)/gi);

			matchAll(html, /"fow_word">(.*?)</g).forEach(function (match, i){
				var start = new Date;
				var expire = parseDate(expires[i][1], expires[i][2], expires[i][3], expires[i][4]);

				start.setTime(expire.getTime()-24*60*60*1000);

				words.push({
					  search:	match[1]
					, regexp:	toRegExp(word_to[i][1], match[1])
					, replace:	word_to[i][1]
					, start:	start.getTime()
					, expire:	expire.getTime()
				});
			});
		}


		function loadWords(callback){
			load(TEXTOMATE_URL, function (html){
				parseWords(html);

				var matches = matchAll(html, /href="(\/*.?\/pages\/\d+)"/g);
				(function _parseNextPage(){
					var match = matches.shift();
					if( match ){
						load(match[1], function (html){
							parseWords(html);
							_parseNextPage();
						});
					} else {
						callback();
					}
				})();
			});
		}


		function translate(id, className){
			var el = document.getElementById(id);
			console.log('translate: ', id, className);
			if( el ){
				var items = el.getElementsByClassName(className), i = items.length;
				while( i-- ){
					var date = items[i].getElementsByClassName('p')[0].innerHTML.match(/(\d+)\.(\d+)\.(\d+)\s+в\s(\d+)\.(\d+)/)
					date = (date ? new Date(date[3]+'-'+date[2]+'-'+date[1]+' '+date[4]+':'+date[5]) : new Date).getTime();
					translateNodes(items[i], date);
				}
			}
		}


		function translateNodes(el, date){
			var
				  childNodes = el.childNodes
				, i = childNodes.length
			;

			while( i-- ){
				el = childNodes[i];

				if( el.nodeType == el.TEXT_NODE ){
					var value = el.nodeValue;

					words.forEach(function (word){
						if( date > word.start && date < word.expire ){
							value = value.replace(word.regexp, word.search);
						}
					});

					if( el.nodeValue !== value ){
						console.log(el.nodeValue.trim(), '\n', value.trim(), '\n~~~~~~');
						el.nodeValue = value;
					}
				}
				else if( el.childNodes ){
					translateNodes(el, date);
				}
			}
		}


		// Load all words
		loadWords(function (){
			console.log('words loaded:', words);
			translate('js-posts_holder', 'post');
			translate('js-commentsHolder', 'post');
		});
	});
})(typeof unsafeWindow === 'undefined' ? window : unsafeWindow);