/*
* Twitter Widget (sidebar)
* version 1
*/

function TwitterDisplay(operation, criteria, resultsPerPage, containerId, callback, tagLabel) {
  this.operation = jQuery.trim(operation);
  this.criteria = jQuery.trim(criteria);
  this.resultsPerPage = resultsPerPage;
  this.containerId = containerId;
  this.callback = callback;
  this.currentPage = 0;
  this.totalPages = 500;
  if(tagLabel) {
    this.tagLabel = tagLabel;
  } else {
    this.tagLabel = "Tag(s) : ";
  } 
  if(operation == 'statuses') {
    this.requestURL = "http://twitter.com/statuses/user_timeline/" + this.criteria + ".json";
    this.nextPageUrlSuffix = "?page=1&count=" + this.resultsPerPage
    
  } else {
    this.requestURL = "http://search.twitter.com/search.json";
    this.nextPageUrlSuffix = "?page=1&rpp=" + this.resultsPerPage + "&q=" + this.criteria;

  }
  this.prevPageUrlSuffix = "";
}

TwitterDisplay.prototype.displayNextPage = function(){
  if (this.nextPageUrlSuffix != "") {
    this.currentPage = parseInt(this.currentPage) + 1;
    var requestURL = this.requestURL + this.nextPageUrlSuffix + "&rand=" + parseInt(Math.random() * 99999999) + "&callback=?";
    jQuery.getJSON(requestURL, this.callback);
    jQuery("#" + this.containerId).html("<div class='ajaxLoading'>Loading ...</div>");
  }
}  

TwitterDisplay.prototype.displayPrevPage = function() {
if(this.prevPageUrlSuffix != "") {
  this.currentPage = parseInt(this.currentPage) - 1;
    var requestURL = this.requestURL + this.prevPageUrlSuffix + "&rand=" + parseInt(Math.random()*99999999) + "&callback=?" ;
    jQuery.getJSON(requestURL, this.callback);
    jQuery("#" + this.containerId).html("<div class='ajaxLoading'>Loading ...</div>");
  }  
}

TwitterDisplay.prototype.displayTweets = function(json, status) {

    var jsonRoot = json;
    var container = jQuery("#" + this.containerId);
    
    if(json.error) {
      container.html(json.error);
      return;
    }
    if(json.results) {
      json = json.results;
    } else if(json[0].user && json[0].user.statuses_count) {
      this.totalPages = Math.ceil(json[0].user.statuses_count/this.resultsPerPage);
    }
    container.html("");
    var usedCriteria = unescape(this.criteria);
    if(usedCriteria.indexOf("#") == 0) {
      container.append("<div class='followTag'><span class='label'>" + this.tagLabel + "</span>" 
      + unescape(this.criteria) + "</div>");
    }
    container.append("<ul class='tweetsHolder'></ul>");
    
    holder = jQuery("#" + this.containerId + " .tweetsHolder");
    jQuery.each(json, function(i, item){
    
    var userId = item.user ? item.user.screen_name : item.from_user;
    var userText = userId.toLowerCase();
    var followText = "";
    if(WMG.TwitterWidget.TwitterMap[userId]) {
        userObj = WMG.TwitterWidget.TwitterMap[userId];
        userText = '<a class="username"' + 'href="' + userObj.profileUrl + '">' +
        userObj.name + '</a>';
        
        followText = '<div class="follow">' +
        '<a target=_new href="http://twitter.com/' + userId + '">Follow @' +
        userObj.name + '</a></div>';
      }   
      
      tweet = item.text.twitterize();
      holder.append("<li class=\"tweets\">" + 

      '<div class="userInfo">' + userText + '</div>' +
      '<div class="message">' + tweet + '</div>' +
      "<div class='created'" + ">... " + 
      item.created_at.fixTwitterDateString() + "</div>" +
      followText +
      "</li>");
    });
    if (jsonRoot.previous_page) {
      this.prevPageUrlSuffix = jsonRoot.previous_page;
      this.setPrevNavigation(true);
      
    } else if(this.operation == 'statuses' && this.currentPage > 1) {
      this.prevPageUrlSuffix = "?page=" + (this.currentPage - 1) + "&count=" + this.resultsPerPage;
      this.setPrevNavigation(true);
      
    } else {
      this.prevPageUrlSuffix = "";
      this.setPrevNavigation(false);
    }
    
    if (jsonRoot.next_page) {
      this.nextPageUrlSuffix = jsonRoot.next_page;
      this.setNextNavigation(true);
      
    } else if(this.operation == 'statuses' && this.currentPage < this.totalPages) {
      this.nextPageUrlSuffix = "?page=" + (this.currentPage + 1) + "&count=" + this.resultsPerPage;
      this.setNextNavigation(true);
      
    } else {
      this.nextPageUrlSuffix = "";
      this.setNextNavigation(false);
    }
    
    /* Twitter Hovercard implementation start */
    if(jQuery('body').attr("id") == 'home' || jQuery('body').attr("id") == 'twitter') {
      twttr.anywhere(function (T) {
          //T("#twitterContainer .message").hovercards({infer:true});
          T("#twitterContainer .follow").hovercards({infer:true});
        });
    }
    /* Twitter Hovercard implementation end */
    
}
 

TwitterDisplay.prototype.setNextNavigation = function(enabled) {

  var id = "#" + this.containerId + "Next";
  if(enabled) {
    jQuery(id).removeClass('tcNextDisabled');
    jQuery(id).addClass('tcNextEnabled');
    jQuery(id).attr('href', '#');
  } else {
    jQuery(id).removeClass('tcNextEnabled');
    jQuery(id).addClass('tcNextDisabled');
    jQuery(id).attr('href', 'javascript:void(0)');
  }
}


TwitterDisplay.prototype.setPrevNavigation = function(enabled) {

  var id = "#" + this.containerId + "Prev";
  if(enabled) {
    jQuery(id).removeClass('tcPreviousDisabled');
    jQuery(id).addClass('tcPreviousEnabled');
    jQuery(id).attr('href', '#');
  } else {
    jQuery(id).removeClass('tcPreviousEnabled');
    jQuery(id).addClass('tcPreviousDisabled');
    jQuery(id).attr('href', 'javascript:void(0)');
  }
}


function delegateTwitterCallback (twitterDisplay, json, status) {
  twitterDisplay.displayTweets(json, status);
}
       
String.prototype.twitterize = function() {
  
    var tweet = this.replace(/[A-Za-z]+:\/\/[A-Za-z0-9-_]+\.[A-Za-z0-9-_:%&\?\/.=]+/, function(str){
        return '<a class="extLink" target=_new href="' + str + '">' + str + '</a>';
    });
  
    tweet = tweet.replace(/([@])([\w]+)/g, '$1<a class="twitterLink" target=_new href="http://twitter.com/' + '$2'.toLowerCase() + '">$2</a>');
  
  
  return tweet;
};

String.prototype.fixTwitterDateString = function() {
  
    var dateArray = this.split(" ");
    var tweetDateString;

    if(parseInt(dateArray[1], 10) > 0) {
     tweetDateString = dateArray[2] + " " + dateArray[1] + ", " + dateArray[3] + " " + dateArray[4];
    } else {
   tweetDateString = dateArray[1] + " " + dateArray[2] + ", " + dateArray[5] + " " + dateArray[3];
    }

    var tweetTime = Date.parse(tweetDateString);
    var currDate = new Date();
    
    var timeDiff = parseInt(currDate.getTime() - tweetTime) / 1000;
    timeDiff = timeDiff + (currDate.getTimezoneOffset() * 60);               
  
  var formattedString = '';
    if (timeDiff < 60) {
        formattedString = 'a minute ago';
    }
    else if (timeDiff < (45 * 60)) {
        formattedString = Math.round(timeDiff / 60) + ' minutes ago';
    }
    else if (timeDiff < (1.5 * 60 * 60)) {
        formattedString = '1 hour ago';
    }
    else if (timeDiff < (24 * 60 * 60)) {
     formattedString = Math.round(timeDiff / (60 *60)) + ' hours ago';
    }
    else if (timeDiff < (1.5 * 24 * 60 * 60)) {
        formattedString = '1 day ago';
    }
    else if (timeDiff < (7 * 24 * 60 * 60)) {
        formattedString = Math.round(timeDiff / (24 * 60 * 60)) + ' days ago';
    }
    else if (timeDiff < (1.5 * 7 * 24 * 60 * 60)) {
         formattedString = '1 week ago';
    }
    else if (timeDiff < (4 * 7 * 24 * 60 * 60)) {
  formattedString = Math.round(timeDiff / (7 * 24 * 60 * 60)) + ' weeks ago';
    }
    else if (timeDiff < (1.5 * 4 * 7 * 24 * 60 * 60)) {
  formattedString = '1 month ago';
    }
    else if (timeDiff < (12 * 4 * 7 * 24 * 60 * 60)) {
  formattedString = Math.round(timeDiff / (4 * 7 * 24 * 60 * 60)) + ' months ago';
    }
    else if (timeDiff < (1.5 * 12 * 4 * 7 * 24 * 60 * 60)) {
  formattedString = '1 year ago';
    } 
    else if (timeDiff > (1.5 * 12 * 4 * 7 * 24 * 60 * 60)) {
  formattedString = Math.round(timeDiff / (12 * 4 * 7 * 24 * 60 * 60)) + ' years ago';
    }
    else {
  formattedString = tweetDateString;
    }
    return formattedString;
}


/* Display */
var twitterModule = new TwitterDisplay(WMG.TwitterWidget.operation, escape(WMG.TwitterWidget.twitterCriteria), WMG.TwitterWidget.noOfTweets, 'twitterContainer', 		function(json, status){
					delegateTwitterCallback(twitterModule, json, status);
	}, WMG.TwitterWidget.tagLabel );
	
twitterModule.displayNextPage();
	
var tAnywhereUrl = "http://platform.twitter.com/anywhere.js?id=" + WMG.TwitterWidget.id + "&v=" + WMG.TwitterWidget.v;
document.write('<script language="JavaScript" src="' + tAnywhereUrl + '" type="text/javascript"><\/script>');

jQuery(document).ready(function(){	
		twttr.anywhere(function (T) {
			T("#twitterContainer").hovercards();
		});
		/* Twitter block - follow us button url*/
		jQuery('a.twitter-bottom-link').attr('href', jQuery('a.twitter-bottom-link').attr('href') + WMG.artistname);
});