/*
 * Metadata - jQuery plugin for parsing metadata from elements
 *
 * Copyright (c) 2006 John Resig, Yehuda Katz, J�örn Zaefferer, Paul McLanahan
 *
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 *
 * Revision: $Id: jquery.metadata.js 3640 2007-10-11 18:34:38Z pmclanahan $
 *
 */

/**
 * Sets the type of metadata to use. Metadata is encoded in JSON, and each property
 * in the JSON will become a property of the element itself.
 *
 * There are four supported types of metadata storage:
 *
 *   attr:  Inside an attribute. The name parameter indicates *which* attribute.
 *          
 *   class: Inside the class attribute, wrapped in curly braces: { }
 *   
 *   elem:  Inside a child element (e.g. a script tag). The
 *          name parameter indicates *which* element.
 *   html5: Values are stored in data-* attributes.
 *          
 * The metadata for an element is loaded the first time the element is accessed via jQuery.
 *
 * As a result, you can define the metadata type, use $(expr) to load the metadata into the elements
 * matched by expr, then redefine the metadata type and run another $(expr) for other elements.
 * 
 * @name $.metadata.setType
 *
 * @example <p id="one" class="some_class {item_id: 1, item_label: 'Label'}">This is a p</p>
 * @before $.metadata.setType("class")
 * @after $("#one").metadata().item_id == 1; $("#one").metadata().item_label == "Label"
 * @desc Reads metadata from the class attribute
 * 
 * @example <p id="one" class="some_class" data="{item_id: 1, item_label: 'Label'}">This is a p</p>
 * @before $.metadata.setType("attr", "data")
 * @after $("#one").metadata().item_id == 1; $("#one").metadata().item_label == "Label"
 * @desc Reads metadata from a "data" attribute
 * 
 * @example <p id="one" class="some_class"><script>{item_id: 1, item_label: 'Label'}</script>This is a p</p>
 * @before $.metadata.setType("elem", "script")
 * @after $("#one").metadata().item_id == 1; $("#one").metadata().item_label == "Label"
 * @desc Reads metadata from a nested script element
 * 
 * @example <p id="one" class="some_class" data-item_id="1" data-item_label="Label">This is a p</p>
 * @before $.metadata.setType("html5")
 * @after $("#one").metadata().item_id == 1; $("#one").metadata().item_label == "Label"
 * @desc Reads metadata from a series of data-* attributes
 *
 * @param String type The encoding type
 * @param String name The name of the attribute to be used to get metadata (optional)
 * @cat Plugins/Metadata
 * @descr Sets the type of encoding to be used when loading metadata for the first time
 * @type undefined
 * @see metadata()
 */

(function($) {

$.extend({
  metadata : {
    defaults : {
      type: 'class',
      name: 'metadata',
      cre: /({.*})/,
      single: 'metadata'
    },
    setType: function( type, name ){
      this.defaults.type = type;
      this.defaults.name = name;
    },
    get: function( elem, opts ){
      var settings = $.extend({},this.defaults,opts);
      // check for empty string in single property
      if ( !settings.single.length ) settings.single = 'metadata';
      
      var data = $.data(elem, settings.single);
      // returned cached data if it already exists
      if ( data ) return data;
      
      data = "{}";
      
      var getData = function(data) {
        if(typeof data != "string") return data;
        
        if( data.indexOf('{') < 0 ) {
          data = eval("(" + data + ")");
        }
      }
      
      var getObject = function(data) {
        if(typeof data != "string") return data;
        
        data = eval("(" + data + ")");
        return data;
      }
      
      if ( settings.type == "html5" ) {
        var object = {};
        $( elem.attributes ).each(function() {
          var name = this.nodeName;
          if(name.match(/^data-/)) name = name.replace(/^data-/, '');
          else return true;
          object[name] = getObject(this.nodeValue);
        });
      } else {
        if ( settings.type == "class" ) {
          var m = settings.cre.exec( elem.className );
          if ( m )
            data = m[1];
        } else if ( settings.type == "elem" ) {
          if( !elem.getElementsByTagName ) return;
          var e = elem.getElementsByTagName(settings.name);
          if ( e.length )
            data = $.trim(e[0].innerHTML);
        } else if ( elem.getAttribute != undefined ) {
          var attr = elem.getAttribute( settings.name );
          if ( attr )
            data = attr;
        }
        object = getObject(data.indexOf("{") < 0 ? "{" + data + "}" : data);
      }
      
      $.data( elem, settings.single, object );
      return object;
    }
  }
});

/**
 * Returns the metadata object for the first member of the jQuery object.
 *
 * @name metadata
 * @descr Returns element's metadata object
 * @param Object opts An object contianing settings to override the defaults
 * @type jQuery
 * @cat Plugins/Metadata
 */
$.fn.metadata = function( opts ){
  return $.metadata.get( this[0], opts );
};


// TableSort parser for time format: 9:45 AM
$.tablesorter.addParser({ 
    // set a unique id 
    id: 'time-custom', 
    is: function(s) { 
        // return false so this parser is not auto detected 
        return false; 
    }, 
    format: function(s) { 
        // format your data for normalization
        var str = s.replace(/:/, " ");
        var arr = str.split(" ");
        if(arr[0] == 12) {
            arr[0] = 0;
        }
        if(arr[2] == "PM") {
            arr[0] += 12;
        }
        var ret = arr[0]*100+arr[1];
        return ret;
    }, 
    // set type, either numeric or text 
    type: 'numeric' 
}); 

// TableSort parser for date format: Jan 6, 1978
$.tablesorter.addParser({
  id: 'date-custom',
  is: function(s) {
      return false;
  },
  format: function(s) {
	  var dateArray = s.split(",");
	  var year = dateArray[2];
	  
	  dateArray = dateArray[1].split(" ");
	  
	  var month = dateArray[1];
	  var day = dateArray[2];	  
	  
      var m = monthNames[month];
      var d = day;
      if (d.length == 1) {d = "0" + d;}
      var y = year;
	  
      return '' + y + m + d;
  },
  type: 'numeric'
});


// TableSort parser for date-time format: 10/14/2011 6:00 PM
$.tablesorter.addParser({
  id: 'datetime-custom',
  is: function(s) {
      return false;
  },
  format: function(s) {

	  s = s.substring(0,10) +" "+ s.substr(10);
	  
	  
	  var s = s.replace("\u00a0", " ");
	  var s = s.replace("\&nbsp;", " ");

	  var dateArray = s.split(" ");
	  
	  var date = dateArray[0];
	  var time = "" + dateArray[1] + " " + dateArray[2] + " " + dateArray[3];
	  
	  
	// Convert time
	  	var time = time.replace(":", " ");
		
		var timeArray = time.split(" ");
		
		/*alert('time: ' + time +"\n" +
			'time 0: ' + timeArray[0] +"\n" +
			'time 1: ' + timeArray[1] +"\n" +
			'time 2: ' + timeArray[2] +"\n" +
			'time 3: ' + timeArray[3]);*/
		
		if(timeArray[1] == 12) {
			timeArray[1] = 0;
		}
		if(timeArray[1] < 10) {
			timeArray[1] = "0"+timeArray[1];
		}
		if(timeArray[3] == "PM") {
			timeArray[1] = parseInt(timeArray[1]) + 12;
			
		}
		
		var t = timeArray[1] +timeArray[2];
		
		
	// Convert Date
	  dateArray = date.split("/");
	  
	  var year = dateArray[2];	  
	  var month = dateArray[0];
	  var day = dateArray[1];	
	  
      var m = month;
      var d = day;
      if (d.length == 1) {d = "0" + d;}
      var y = year;
	  
	  /*alert('Year: ' + y +"\n" +
			'month: ' + m +"\n" +
			'day: ' + d +"\n" +
			'time: ' + t+"\n" +
			'total: ' + y + m + d + t);*/
	  
      return '' + y + m + d + t;
  },
  type: 'numeric'
});

var monthNames = {};
monthNames["Jan"] = "01";
monthNames["Feb"] = "02";
monthNames["Mar"] = "03";
monthNames["Apr"] = "04";
monthNames["May"] = "05";
monthNames["Jun"] = "06";
monthNames["Jul"] = "07";
monthNames["Aug"] = "08";
monthNames["Sep"] = "09";
monthNames["Oct"] = "10";
monthNames["Nov"] = "11";
monthNames["Dec"] = "12";


})(jQuery);