//<![CDATA[

/*
	name : friendfeed
	file : jquery.friendfeed.js
	author : gregory tomlinson
	site: http://gregorytomlinson.com/
	///////////////////////////
	///////////////////////////		
	dependencies : jQuery 1.3.2
	///////////////////////////
	///////////////////////////
	
	The MIT License
	Copyright (c) 2009 Gregory Tomlinson
	http://www.opensource.org/licenses/mit-license.php	

*/

(function($) {

	$.fn.friendfeed = function( user, options ) {
	
		/* declare INSTANCE specific variables and settings */
		/* extend the defaults to include all user specified options */
		var defaults = $.extend( true, $.friendfeed.defaults, options );	
			
		defaults.user = user;		 
		var	success = function( jo ) {
				if( !jo || !jo.entries ) { return false; }
				
				// provide 'this' as the target container				
				$.friendfeed.render( this, jo.entries, defaults );
			},		
			callback = $.friendfeed.delegate( success, this );
	
		/* connect to the remote data source: friendfeed */	
		$.friendfeed.connector( defaults.url+user, defaults.params, callback );
		
		return this; /* jQuery default behavior, return container */
	};

	$.friendfeed = {
	
		dates : {
			// time in milliseconds
			"5days" : 432000000,
			"2days" : 172800000,
			"1day" : 86400000,
			"1hour" : 1440000,
			"1min" : 60000,
			months : ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
			days : ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
			previousDay : "yesterday"
		},
				
		log : function( str ) {
			if( !this.defaults.debug ) { return; }
			try {
				console.log( str );
			} catch(e){}
		},
		connector : function( src, params, callback ) {
			var str = $.param(params);
			$.ajax({
				dataType: 'jsonp',
				data : str,
				jsonp: 'callback',
				url : src,
				success: callback
			});
		},
		formatDate : function( time, diff ) {
			var d = this.dates, date = new Date( time ), response="";
			if( diff >= d["5days"] ) {
			
				response = d.months[date.getMonth()] + " " +date.getDate() + ", " + date.getFullYear(); /* Jan 1, 1970 */
			} else if( diff >= d["2days"] ) {
				
				response = d.days[ date.getDay() ]; /* Tuesday */
			} else if( diff >= d["1day"] ) {
			
				response = d.previousDay; /* yesterday */
			} else if( diff >= d["1hour"] ) {
				var tag = ( diff <= (d["1hour"]*2) ) ?  " hour ago" : " hours ago";
				response = Math.ceil( diff / 1000 / 60 / 60 ) + tag; /* N hours ago */
			} else if( diff >= d["1min"] ) {
				var tag = ( diff < (d["1min"]*2) ) ?  " min ago" : " mins ago";
				response = Math.ceil( diff / 1000 / 60 ) + tag; /* N mins ago */
			} else {

				response = "now";
			}
			
			//this.log( response );
			
			return response;

		},
		parseDate : function( time_string ) {
			//2009-09-18T13:39:17Z	
			//this.log( time_string );		
			time_string=time_string.slice(0, -1);
			var d = time_string.split("T"), time = d.pop().split(":"), 
				date=d.pop().split("-"), 
				now = (new Date()).getTime(),
										// have to adjust the months to start at 0
				then = Date.UTC( date[0], date[1]-1, date[2], time[0], time[1], time[2] ), 
				diff = (now - then);

			return this.formatDate( then, diff ) + " ";
		},
		render : function( container, items, defaults ) {
			var css = defaults.css, bx = $('<div />').addClass( css.bx );
			this.log( 'Render Elements' );
			for(var i=0; i<items.length; i++) {
				//this.log( items[i] );
				var d = $('<div />').addClass( css.item ).appendTo( bx ), subD = $('<div />').addClass( css.meta ).appendTo( d );
				$('<p />').html( items[i].body ).prependTo( d );
				
				$('<span />').addClass( css.time ).html( this.parseDate( items[i].date ) ).appendTo( subD );
				
				// if( items[i].via ) { 
				// 					$('<span />').html('via ').appendTo(subD);
				// 					$('<a />').attr('href', items[i].via.url).html( items[i].via.name ).appendTo( subD ); 
				// 				}
				
				//$('<a />').attr('href', items[i].url).addClass( css.comment_link ).html( 'Add Comment' ).appendTo( subD ); 
				
				this.renderComment( items[i].comments, css, d, items[i].url );
			}
			bx.appendTo( container );
		},
		
		/* @private */
		renderComment : function( comments, css, el, link ) {
			if( !comments || comments.length <= 0 ) { return false; }

			for( var i=0; i<comments.length; i++ ) {
			
				var from = ( comments[i].from ) ? " -" + comments[i].from.name : "",
					p = $('<p />').addClass( css.comment ).appendTo( el );
				
				if( comments[i].placeholder ) {
					$('<a />').attr('href', link).html( comments[i].body ).appendTo( p );
				} else {
					p.html( comments[i].body + from );
				}
			

			}
			
			return true;
			
		},
		
		delegate : function( func, scope ) {
			// fix scope to point where I say it
			var fn = func;
			return function() {
				fn.apply( scope, arguments );
			}
		}
	}

	/* define defaults for override */
	$.friendfeed.defaults = {
		url : 'http://friendfeed-api.com/v2/feed/',
		user : '', debug : false,		
		params : {
			format : 'json',
			locale:'en',
			num : 50,
			maxcomments : 3
		},
		css : {
			bx : 'ff_box',
			item : 'ff_item',
			meta : 'ff_meta',
			time : 'ff_time',
			comment_link : 'comment_outlink',
			comment : 'ff_comment'
			
		}
	};

})(jQuery);

//]]>