/*
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 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.
        // end of configuration
    
        // some global vars
        aURL="";
        msgNb=1;
        var mode,param,time,lang,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=";
    $.Juitter = {
        registerVar: function(opt){
            mode=opt.searchType;
            param=opt.searchObject;
            timer=opt.live;
            lang=opt.lang?opt.lang:"";
            contDiv=opt.placeHolder?opt.placeHolder:containerDiv;
            loadMSG=opt.loadMSG?opt.loadMSG:loadMSG;
            gifName=opt.imgName?opt.imgName:imgName;
            numMSG=opt.total?opt.total:numMSG;
            readMore=opt.readMore?opt.readMore:readMore;
            fromID=opt.nameUser?opt.nameUser:nameUser;
            filterWords=opt.filter;
            openLink=opt.openExternalLinks?"target='_blank'":"";
        },
        start: function(opt) {        
            ultID=0;
            if($("#"+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){
                  //  console.log(aURL);    
                    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)
                                    .addClass('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><span class='user-link'><a href='http://www.twitter.com/"+item.from_user+"'>@"+item.from_user+"</a></span> <span class='user'>"+item.from_user+"</span><br/> "+$.Juitter.textFormat(tweet)+"<br/><time class='time' datetime='"+item.created_at+"'>"+item.created_at.substring(0,item.created_at.length-19)+"</time>";
                                else mHTML="<a href='http://www.twitter.com/"+item.from_user+"'>@"+item.from_user+":</a> "+$.Juitter.textFormat(tweet)+" -| <span class='time'>"+item.created_at+"</span> |-  <a href='" + link + "' "+openLink+">"+readMore+"</a>";
                                
                                 $('time').humaneDates();

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

                                $('#twittLI'+msgNb).hide();
                                $('#twittLI'+msgNb).show("slow");
                                
                                // remove old entries
                                $.Juitter.delRegister();
                                msgNb++;                                
                            }
                        }
                    });    
                    ultID=tultID;
                }
            });
        },    
        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);