/*
JUITTER 0.9.2
14/02/2009
BY RODRIGO FANTE
http://rodrigofante.com

** jQuery 1.2.* or higher required
==> if you for any reason don't have it, download at http://jquery.com


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 STATIC CONFIGURATION ========================
		// YOU CAN CHANGE THE DYNAMIC VARS ON CALLING THE start and changeRequest METHODS, see the system.js for more information about it.
		
		username = "twiterbh", // will be used user if you don't give it when you start juitter and you are looking for tweets from or to a specific user
		word = "juitter" // will be user if you don't give it when you start juitter searching for a specific word
		contDiv = "juitterContainer", // Container div that will receive the list of tweets
		loadMSG = "Carregando..."; // Loading message, if you want to show an image, fill it with "image/gif" and go to the next variable to set witch image want to use 
		gifName = "loader.gif"; // Loading image, to enable it go to the loadMSG var and change to "image/gif"
		numMSG = 10; // number of tweets to be shown - max 100
		readMore = "Leia isso no Twitter"; // read more message to be shown after the tweet content
		fromID = "image"; // insert "image" to show avatar of "text" to show the name of the user that sent the tweet 
		
		// END OF CONFIG
		// ======================================
		
		
		// DO NOT TOUCH BELOW HERE ==============
		
		// Twiiter API Urls
		apifUSER = "http://search.twitter.com/search.json?q=from%3A";
		apitUSER = "http://search.twitter.com/search.json?q=to%3A";
		apiSEARCH = "http://search.twitter.com/search.json?q=";
		
		// some global vars
		aURL="";
		ultID=0;
		msgNb = 1;
		
		mode = "",
		param = "",
		time = "",
		lang=""
		
	$.Juitter = {
		registerVar: function(localMode,localParam,localTimer,localLang) {
			mode = localMode;
			param = localParam;
			timer = localTimer;
			lang = localLang;			
		},
		start: function(options) {			
			if($("#"+contDiv)){	
				this.registerVar(options.searchType,options.searchObject,options.live,options.lang);
				// show the load message
				this.loading();
				// create the URL  to be request at the Twitter API
				aURL = this.createURL(mode,param);
				// 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) this.temporizador();
			}   
		},
		update: function(){
			this.conectaTwitter(2);		
			if(timer!=undefined) this.temporizador();
		},
		changeRequest: function(options){
			// create the URL  to be request at the Twitter API
			$(".jLinks").removeClass("on");
			$("#"+options.elementId).addClass("on");
			// show the load message
			this.loading();
			this.registerVar(options.searchType,options.searchObject,options.live,options.lang);
			aURL = this.createURL(mode,param);
			// query the twitter API and create the tweets list
			this.conectaTwitter(1);		
		},
		loading: function(){
			if(loadMSG=="image/gif"){
				$("<img></img>")
					.attr('src', gifName)
					.appendTo("#"+contDiv); 
			} else {
				$("#"+contDiv).html(loadMSG);
			}		
		},
		createURL: function(mode,param){
			var url = "";
			if(lang!=undefined) jlg="&lang="+lang; else jlg=""; 
			if(mode=="fromUser"){
				if(param!=undefined) username = param;
				url = apifUSER+username;
			} else if(mode=="toUser"){
				if(param!=undefined) username = param;
				url = apitUSER+username;
			}else if(mode=="searchWord"){
				if(param!=undefined) word = param;
				url = apiSEARCH+word+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(opt){
			// 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(opt==1){
						// first request
						$("#"+contDiv).html("");
						$("<ul></ul>")
							.attr('id', 'twittList')
							.appendTo("#"+contDiv);  
						$.each(json.results,function(i,item) {
							if(i==0) ultID = item.id;												 
							if(i<numMSG){
								if (item.text != "undefined") {
									var link =  "http://twitter.com/"+item.from_user+"/status/"+item.id;  
									if(fromID=="image"){
										$("<li></li>") 
											.html("<a href='http://www.twitter.com/"+item.from_user+"' target='_blank'><img src='"+item.profile_image_url+"' alt='@"+item.from_user+"' title='@"+item.from_user+"' class='juitterAvatar' /></a> "+$.Juitter.textFormat(item.text)+ "<br /><a href='" + link + "' class='JRM' target='_blank'>"+readMore+"</a>")  
											.attr('id', 'twittLI'+msgNb)
											.attr('class', 'twittLI')
											.appendTo("#twittList"); 	
									} else {
										$("<li></li>") 
											.html("<a href='http://www.twitter.com/"+item.from_user+"' target='_blank'>@"+item.from_user+":</a> "+$.Juitter.textFormat(item.text)+ "<br /><a href='" + link + "' target='_blank'>"+readMore+"</a>")  
											.attr('id', 'twittLI'+msgNb)
											.attr('class', 'twittLI')
											.appendTo("#twittList"); 
									}
									msgNb++;
								}
							}
						});
					} else {
						// live mode
						$.each(json.results,function(i,item) {
							if(i<numMSG && item.id>ultID){
								if(i==0) ultID=item.id;
								if (item.text != "undefined") {
									var link =  "http://twitter.com/"+item.from_user+"/status/"+item.id;  
									
									if(fromID=="image"){
										$("<li></li>") 
											.html("<a href='http://www.twitter.com/"+item.from_user+"' target='_blank'><img src='"+item.profile_image_url+"' alt='@"+item.from_user+"' title='@"+item.from_user+"' class='juitterAvatar' /></a> "+$.Juitter.textFormat(item.text)+ "<br /><a href='" + link + "' class='JRM' target='_blank'>"+readMore+"</a>")  
											.attr('id', 'twittLI'+msgNb)
											.attr('class', 'twittLI')
											.prependTo("#twittList");
										$('#twittLI'+msgNb).hide();
										$('#twittLI'+msgNb).show("slow");
									} else {
										$("<li></li>") 
											.html("<a href='http://www.twitter.com/"+item.from_user+"' target='_blank'>@"+item.from_user+":</a> "+$.Juitter.textFormat(item.text)+ "<br /><a href='" + link + "' target='_blank'>"+readMore+"</a>")  
											.attr('id', 'twittLI'+msgNb)
											.attr('class', 'twittLI')
											.prependTo("#twittList");
										$('#twittLI'+msgNb).hide();
										$('#twittLI'+msgNb).show("slow");
									}
									// remove old entries
									$.Juitter.delRegister();
									msgNb++;
								}
							}
						});
					}
				}
			});
		},		
		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'>$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.changeRequest(\"searchWord\",\"$1\");return false;' class='hashLink'>#$1</a>"); 
			// make it bold
			if(mode=="searchWord"){
				regExp=eval('/ '+param+'/ig');
				newString = new String(' <b>'+param+'</b> ');
				texto = texto.replace(regExp, newString);
			}
			return texto;
		},
		temporizador: function(){
			// live mode timer
			
			aTim = timer.split("-");
			if(aTim[0]=="live" && aTim[1].length>0){
				tempo = aTim[1]*60000;
				setTimeout("$.Juitter.update()",tempo);
			}
		}
	};	
})(jQuery);