/*
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.
  // 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) {
          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> "+$.Juitter.textFormat(tweet)+" -| <span class='time'>"+item.created_at+"</span> |- <a href='" + link + "' class='JRM' "+openLink+">"+readMore+"</a>";
                //else mHTML="<a href='http://www.twitter.com/"+item.from_user+"'>@"+item.from_user+":</a> "+$.Juitter.textFormat(tweet)+" -| <span class='time'>"+item.created_at+"</span> |-  <a href='" + link + "' "+openLink+">"+readMore+"</a>";

                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><p>" + $.Juitter.textFormat(tweet) + "</p><a href='" + link + "' class='JRM' " + openLink + ">" + readMore + " &#62;</a>";
                } else {
                  mHTML = "<a href='http://www.twitter.com/" + item.from_user + "'>@" + item.from_user + ":</a><p>" + $.Juitter.textFormat(tweet) + "</p><a href='" + link + "' " + openLink + ">" + readMore + " &#62;</a>";
                }

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

                $('#twittLI' + msgNb).hide();
                //$('#twittLI'+msgNb).show("slow");
                $('#twittLI' + msgNb).slideDown(500);

                // remove old entries
                $.Juitter.delRegister();
                msgNb++;
              }
            }
          });
          ultID = tultID;
          $("#" + contDiv).idle(1000, function() {
            $("#" + contDiv).find("li:hidden").remove();
          });
        }
      });
    },
    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);