/*
JUITTER 1.0.0 - 22/07/2009 - http://juitter.com
BY RODRIGO FANTE - http://rodrigofante.com

 ** jQuery 1.2.* or higher required

Juitter is distributed under the MIT License
Read more about the MIT License --> http://www.opensource.org/licenses/mit-license.php

This script is just a beta test version, download and use it at your own risk.
The Juitter developer shall have no responsability for data loss or damage of any kind by using this script.
 */
(function($) {
	var conf = {},
	// JUITTER DEFAULT CONFIGURATION ========================
	// YOU CAN CHANGE THE DYNAMIC VARS ON CALLING THE start method, see the
	// system.js for more information about it.

	numMSG = 20; // set the number of messages to be show
	containerDiv = "juitterContainer", // //Set a place holder DIV which will
										// receive the list of tweets example
										// <div id="juitterContainer"></div>
			loadMSG = "Loading messages...", // Loading message, if you want
												// to show an image, fill it
												// with "image/gif" and go to
												// the next variable to set
												// which image you want to use
												// on
			imgName = "loader.gif", // Loading image, to enable it, go to the
									// loadMSG var above and change it to
									// "image/gif"
			readMore = "Read it on Twitter", // read more message to be show
												// after the tweet content
			nameUser = "image" // insert "image" to show avatar of "text" to
								// show the name of the user that sent the tweet
	live: "live-20", // optional, disabled by default, the number after
						// "live-" indicates the time in seconds to wait before
						// request the Twitter API for updates, I do not
						// recommend to use less than 60 seconds.
	dateFormat = 'pretty'// pretty, locale, normal,
	// end of configuration

	// some global vars
	aURL = "";
	msgNb = 1;
	var mode, param, time, lang, dateFormat, contDiv, loadMSG, gifName, numMSG, readMore, fromID, ultID, filterWords;
	var running = false;
	// Twitter API Urls
	apifMultipleUSER = "http://search.twitter.com/search.json?from%3A";
	apifUSER = "http://search.twitter.com/search.json?q=from%3A";
	apitMultipleUSER = "http://search.twitter.com/search.json?to%3A";
	apitUSER = "http://search.twitter.com/search.json?q=to%3A";
	apiSEARCH = "http://search.twitter.com/search.json?q=";
	$.Juitter = {
		registerVar : function(opt) {
			mode = opt.searchType;
			param = opt.searchObject;
			timer = opt.live;
			lang = opt.lang ? opt.lang : "";
			contDiv = opt.placeHolder ? opt.placeHolder : containerDiv;
			loadMSG = opt.loadMSG ? opt.loadMSG : loadMSG;
			gifName = opt.imgName ? opt.imgName : imgName;
			numMSG = opt.total ? opt.total : numMSG;
			readMore = opt.readMore ? opt.readMore : readMore;
			fromID = opt.nameUser ? opt.nameUser : nameUser;
			filterWords = opt.filter;
			dateFormat = opt.dateFormat;
			openLink = opt.openExternalLinks ? "target='_blank'" : "";
		},
		start : function(opt) {
			ultID = 0;
			if ($("#" + contDiv)) {
				this.registerVar(opt);
				// show the load message
				this.loading();
				// create the URL to be request at the Twitter API
				aURL = this.createURL();
				// query the twitter API and create the tweets list
				this.conectaTwitter(1);
				// if live mode is enabled, schedule the next twitter API query
				if (timer != undefined && !running)
					this.temporizador();
			}
		},
		update : function() {
			this.conectaTwitter(2);
			if (timer != undefined)
				this.temporizador();
		},
		loading : function() {
			if (loadMSG == "image/gif") {
				$("<img></img>").attr('src', gifName).appendTo("#" + contDiv);
			} else
				$("#" + contDiv).html(loadMSG);
		},
		createURL : function() {
			var url = "";
			jlg = lang.length > 0 ? "&lang=" + lang : jlg = "";
			var seachMult = param.search(/,/);
			if (seachMult > 0)
				param = "&ors=" + param.replace(/,/g, "+");
			if (mode == "fromUser" && seachMult <= 0)
				url = apifUSER + param;
			else if (mode == "fromUser" && seachMult >= 0)
				url = apifMultipleUSER + param;
			else if (mode == "toUser" && seachMult <= 0)
				url = apitUSER + param;
			else if (mode == "toUser" && seachMult >= 0)
				url = apitMultipleUSER + param;
			else if (mode == "searchWord")
				url = apiSEARCH + param + jlg;
			url += "&rpp=" + numMSG;
			return url;
		},
		delRegister : function() {
			// remove the oldest entry on the tweets list
			if (msgNb >= numMSG) {
				$(".twittLI").each(function(o, elemLI) {
					if (o >= numMSG)
						$(this).hide("slow");
				});
			}
		},
		conectaTwitter : function(e) {
			// query the twitter api and create the tweets list
			$
					.ajax( {
						url : aURL,
						type : 'GET',
						dataType : 'jsonp',
						timeout : 1000,
						error : function() {
							$("#" + contDiv).html("fail#");
						},
						success : function(json) {
							if (e == 1)
								$("#" + contDiv).html("");
							$
									.each(
											json.results,
											function(i, item) {
												if (e == 1
														|| (i < numMSG && item.id > ultID)) {
													if (i == 0) {
														tultID = item.id;
														$("<ul></ul>")
																.attr(
																		'id',
																		'twittList' + ultID)
																.attr('class',
																		'twittList')
																.prependTo(
																		"#"
																				+ contDiv);
													}

													if (item.text != "undefined") {
														var link = "http://twitter.com/"
																+ item.from_user
																+ "/status/"
																+ item.id;

														var tweet = $.Juitter
																.filter(item.text);

														if (fromID == "image")
															mHTML = "<a href='http://www.twitter.com/"
																	+ item.from_user
																	+ "'><img src='"
																	+ item.profile_image_url
																	+ "' alt='"
																	+ item.from_user
																	+ "' class='juitterAvatar' /></a> "
																	+ $.Juitter
																			.textFormat(tweet)
																	+ " -| <span class='time'>"
																	+ $.Juitter
																			.formatDate(item.created_at)
																	+ "</span> |- <a href='"
																	+ link
																	+ "' class='JRM' "
																	+ openLink
																	+ ">"
																	+ readMore
																	+ "</a>";
														else
															mHTML = "<a href='http://www.twitter.com/"
																	+ item.from_user
																	+ "'>@"
																	+ item.from_user
																	+ ":</a> "
																	+ $.Juitter
																			.textFormat(tweet)
																	+ " -| <span class='time'>"
																	+ $.Juitter
																			.formatDate(item.created_at)
																	+ "</span> |-  <a href='"
																	+ link
																	+ "' "
																	+ openLink
																	+ ">"
																	+ readMore
																	+ "</a>";

														$("<li></li>")
																.html(mHTML)
																.attr(
																		'id',
																		'twittLI' + msgNb)
																.attr('class',
																		'twittLI')
																.appendTo(
																		"#twittList"
																				+ ultID);

														$('#twittLI' + msgNb)
																.hide();
														$('#twittLI' + msgNb)
																.show("slow");

														// remove old entries
														$.Juitter.delRegister();
														msgNb++;
													}
												}
											});
							ultID = tultID;
						}
					});
		},
		formatDate : function(date) {
			switch (dateFormat) {
			case "locale":
				var dd = new Date(date);
				return dd.toLocaleString();
				break;
			case "pretty":
				return $.prettyDate.format(date);
				break;
			default:
				return date;
				break;
			}
		},
		filter : function(s) {
			if (filterWords) {
				searchWords = filterWords.split(",");
				if (searchWords.length > 0) {
					cleanHTML = s;
					$.each(searchWords, function(i, item) {
						sW = item.split("->").length > 0 ? item.split("->")[0]
								: item;
						rW = item.split("->").length > 0 ? item.split("->")[1]
								: "";
						regExp = eval('/' + sW + '/gi');
						cleanHTML = cleanHTML.replace(regExp, rW);
					});
				} else
					cleanHTML = s;
				return cleanHTML;
			} else
				return s;
		},
		textFormat : function(texto) {
			// make links
			var exp = /(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig;
			texto = texto.replace(exp, "<a href='$1' class='extLink' "
					+ openLink + ">$1</a>");
			var exp = /[\@]+([A-Za-z0-9-_]+)/ig;
			texto = texto
					.replace(exp,
							"<a href='http://twitter.com/$1' class='profileLink'>@$1</a>");
			var exp = /[\#]+([A-Za-z0-9-_]+)/ig;
			texto = texto
					.replace(
							exp,
							"<a href='http://juitter.com/#$1' onclick='$.Juitter.start({searchType:\"searchWord\",searchObject:\"$1\"});return false;' class='hashLink'>#$1</a>");
			// make it bold
			if (mode == "searchWord") {
				tempParam = param.replace(/&ors=/, "");
				arrParam = tempParam.split("+");
				$.each(arrParam, function(i, item) {
					regExp = eval('/' + item + '/gi');
					newString = new String(' <b>' + item + '</b> ');
					texto = texto.replace(regExp, newString);
				});
			}
			return texto;
		},
		temporizador : function() {
			// live mode timer
		running = true;
		aTim = timer.split("-");
		if (aTim[0] == "live" && aTim[1].length > 0) {
			tempo = aTim[1] * 1000;
			setTimeout("$.Juitter.update()", tempo);
		}
	}
	};
})(jQuery);