/*
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

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($) {
	// Twitter API Urls
	var apifMultipleUSER = "http://search.twitter.com/search.json?from%3A";
	var apitMultipleUSER = "http://search.twitter.com/search.json?to%3A";
	var apitUSER = "http://search.twitter.com/search.json?q=to%3A";
	var apiSEARCH = "http://search.twitter.com/search.json?q=";

	$.fn.extend({
		Juitter: function(opt) {
			return this.each(function(){
				var target = this,

				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.
				showDetails = true;
				// end of configuration
				// some global vars

				var msgNb=1;
				var mode,param,time,lang,contDiv,loadMSG,gifName,numMSG,readMore,fromID,ultID,filterWords,aURL;
				var running=false;

				start(opt);

				function registerVar(opt){
					mode=opt.searchType;
					param=opt.searchObject;
					timer=opt.live;
					lang=opt.lang?opt.lang:"";
					contDiv= target.id;
					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;
					showDetails=opt.details;
					openLink=opt.openExternalLinks?"target='_blank'":"";

					aURL = createURL();
				}

				function loading(){
					if(loadMSG=="image/gif"){
						$('<div class="loading"><img src="' + gifName + '" alt="loading..." /></div>')
							.appendTo("#"+contDiv);
					} else $("#"+contDiv).html(loadMSG);
				}

				function createURL(){
					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) {
						if (param.match(/thaisypecsen/))
							url="/twitter_xml2json.php?q=from%3A"+param;
						else
							url="http://search.twitter.com/search.json?q=from%3A"+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;
					if (filterWords.length > 0) {
						var nots = [], item = '', searchWords = filterWords.split(","), sW = '';
						for (var i =0; i < searchWords.length; i++) {
							item = searchWords[i];
							sW = item.split("->").length>0 ? item.split("->")[0] : item;
							nots.push(sW.replace(/\s/g,'+'));
						}
						url += '&nots=' + nots.join('+');
					}
					return url;
				}

				function conectaTwitter(e){

					// query the twitter api and create the tweets list
					$.ajax({
						url: aURL,
						type: 'GET',
						dataType: 'jsonp',
						timeout: 10000,
						error: function(){ $("#"+contDiv).html("fail#"); },
						success: function(json){
							if(e==1) $("#"+contDiv).html("");

							if ($('#' + contDiv + ' ul#twittList-'+contDiv).size() == 0)
								$('<ul class="twittList" id="twittList-'+ contDiv + '" />').appendTo("#"+contDiv);

							$.each(json.results,function(i,item) {
								if(e==1 || (i<numMSG &&item.id>ultID)){
									if (i === 0)
										tultID = item.id;
									if (item.text != "undefined") {
										var link =  "http://twitter.com/"+item.from_user+"/status/"+item.id;

										var tweet = filter(item.text);
										if(fromID=="image") {
											mHTML='<a href="http://www.twitter.com/'+item.from_user+'" target="_blank">' +
												  '	<img src="'+item.profile_image_url+'" alt="'+item.from_user+'" class="juitterAvatar" />' +
												  '</a>' +
												  '<span class="tweet">' +
												  '	<a class="user" href="http://www.twitter.com/'+item.from_user+'" target="_blank">@'+item.from_user+':</a>' +
												  '	<span class="message">'+textFormat(tweet)+'</span>' +
												  (showDetails ?
													  '	<span class="time">'+item.created_at+'</span>' +
													  '	<a href="' + link + '" class="JRM" '+openLink+' target="_blank">'+readMore+'</a>' +
													  '</span>'
												  : '');
										} else {
											mHTML='<a href="http://www.twitter.com/'+item.from_user+'" target="_blank">@'+item.from_user+':</a> ' +
												  '<span class="message">'+textFormat(tweet)+'</span> ' +
												  '-| <span class="time">'+item.created_at+'</span> |- ' +
												  ' <a href="' + link + '" '+openLink+' target="_blank">'+readMore+'</a>';
										}

										$("<li></li>")
											.html(mHTML)
											.attr('id', 'twittLI-' + contDiv + '-'+msgNb)
											.addClass('twittLI' + (i % 2 === 0 ? ' odd' : ' even') + (i == (json.results.length - 1) ? ' last' : ''))
											.appendTo("#twittList-"+contDiv);

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

										// remove old entries
										delRegister(contDiv);
										msgNb++;
									}
								}
								ultID=tultID;
							});
						}
					});
				}

				function filter(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;
				}

				function textFormat(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;
				}

				function temporizador(){
					// live mode timer
					running=true;
					aTim = timer.split("-");
					if(aTim[0]=="live" && aTim[1].length>0){
						tempo = aTim[1]*1000;
						setTimeout(function(){ update(); },tempo);
					}
				}

				function start(opt) {
					ultID=0;
					if($("#"+contDiv)){
						registerVar(opt);
						// show the load message
						loading();
						// create the URL  to be request at the Twitter API
						//aURL = createURL();
						// query the twitter API and create the tweets list
						conectaTwitter(1);
						// if live mode is enabled, schedule the next twitter API query
						if(timer!=undefined&&!running) temporizador();
					}
				}

				function update(){
					conectaTwitter(2);
					if(timer!=undefined) temporizador();
				}

				function delRegister(target){
					// remove the oldest entry on the tweets list
					if(msgNb>=numMSG){
						$('#twittList-'+target + " .twittLI").each(
							function(o,elemLI){
								if(o>=numMSG) $(this).hide("slow");
							}
						);
					}
				}

			});
		}
	});
})(jQuery);