/************************************************************************************************************************************
 *	fb.wall				Facebook Wall jQuery Plguin
 *
 *	@author:			Daniel Benkenstein / neosmart GmbH
 *	@version:			1.2.7
 *	@Last Update:		06.06.2011
 *	@licence:			MIT (http://www.opensource.org/licenses/mit-license.php)
 *						GPL	(http://www.gnu.org/licenses/gpl.html)
 *	@documentation:		http://www.neosmart.de/social-media/facebook-wall
 *	@feedback:			http://www.neosmart.de/blog/jquery-plugin-facebook-wall
 *	
 ************************************************************************************************************************************/

(function($) {
	
	$.fn.fbWall = function(options) {
		
		var opts = $.extend({}, $.fn.fbWall.defaults, options);
		var meta = this;
		
		return meta.each(function() {
			$this = $(this);
			var o = $.meta ? $.extend({}, opts, $this.data()) : opts;
			var output = "";
			var avatarBaseURL;
			var baseData;
			var graphURL = "https://graph.facebook.com/";
			
			/******************************************************************************************************
			 * Load base data
			 ******************************************************************************************************/
			 
			meta.addClass('fb-wall').addClass('loading').html('');
			//check to see if the fbwall is cached
			checkFBwallCache();
			
			var getAccessToken = function(){
				$.ajax({
					url: graphURL+o.id+'?access_token='+o.accessToken,
					dataType: "jsonp",
					success: function(data, textStatus, XMLHttpRequest){
						initBase(data);
					}
				});
			}
			
			/******************************************************************************************************
			 * Load feed data
			 ******************************************************************************************************/
			 
			var initBase = function(data){
				baseData = data;
				
				if(data==false){
					meta.removeClass('loading').html('The alias you requested does not exist: '+o.id);
					return false;
				};
				
				if(data.error){
					meta.removeClass('loading').html(data.error.message);
					meta.closest(".feedFacebookWall").remove();
					
					var ga = window[window['GoogleAnalyticsObject'] || 'ga'];
					if (typeof ga == 'function') {
					  // call ga object here
					  var pathName = window.location.pathname;
					  ga('send', 'event', 'Facebook Wall', 'error', pathName);
					}
					return false;
				};
				
				
				var type = (o.showGuestEntries=='true'||o.showGuestEntries==true) ? 'feed' : 'posts';
				$.ajax({
					url: graphURL+o.id+"/"+type+"?limit="+o.max+'&access_token='+o.accessToken+'&fields=from,message,story,created_time,id,picture',
					dataType: "json",
					success:function (data, textStatus, XMLHttpRequest) {
						initWall(data);
						setTimeout(function(){
							meta.removeClass('loading');
						},500);
					}
				});
			}
			
			
			/******************************************************************************************************
			 * Parse feed data / wall
			 ******************************************************************************************************/
			 
			var initWall = function(data){
				data = data.data;
				var max = data.length;
				var thisAvatar, isBase, hasBaseLink, thisDesc;
				var stopLoop = false;
				var k = 0;
				var goodPosts = 0;
				//for(var k=0;k<max;k++){
				while(stopLoop === false){	
					if(typeof(data[k].message) !== "undefined" || data[k].status_type == "added_photos"){
						// Shortcut ------------------------------------------------------------------------------------------------------------------------------
						//isBase = (data[k].from.id==baseData.id);
						//hasBaseLink = isBase&&(exists(baseData.link));
						//if(!o.showGuestEntries&&!isBase) continue;
						
						// Box -----------------------------------------------------------------------------------------------------------------------------------
						if(goodPosts == 0){
							var today = moment();
							var postTime = moment(data[k].created_time);
							
							var difference = today.diff(postTime, "days");
							
							
							if(difference > 7){
								var differenceText = "";
								if(difference < 14){
									differenceText = '<b>' + difference + '</b> days';
								}else if(difference < 60){
									differenceText = '<b>' + today.diff(postTime, "weeks") + '</b> weeks';
								}else{
									differenceText = '<b>' + today.diff(postTime, "months") + '</b> months';
								}
								
								var oldAlert = '<div id="facebookContentOLD" class="fb-wall-box">';
								oldAlert += '<div class="fb-wall-likes clearfix">';
								oldAlert += '<div>';
								oldAlert += '<a href="https://www.facebook.com/profile.php?id='+data[k].from.id+'" class="fb-wall-message-from" target="_blank">'+data[k].from.name+'</a> ';
								oldAlert += '<span class="fb-wall-date">' + today.format("MM-DD-YYYY") + ' at ' + today.format("HH:mm") + '</span>';
								oldAlert += '</div>';
								oldAlert += '</div>';
								oldAlert += '<div class="fb-wall-media clearfix">';
								oldAlert += '<img src="https://afsshareportal.com/Kickstrap/img/sleepingGuy.png" width="70%" alt="Haven\'t posted in awhile">';
								oldAlert += '</div>';
								oldAlert += '<div class="fb-wall-data">';
								oldAlert += '<span class="fb-wall-message clearfix">';
								oldAlert += '<h5>Oh no, we have forgotten to post to Facebook for the last ' + differenceText + '.</h5>';
								oldAlert += '<p><a href="https://www.facebook.com/profile.php?id='+data[k].from.id+'" target="_blank">Reach out to us</a> to see what is current in our world!</p>';
								oldAlert += '</span>';
								oldAlert += '</div>';
								//oldAlert += '<div class="fb-content-hide">Hide this post</div>';
								oldAlert += '<div class="fb-wall-clean">';
								oldAlert += '</div>';
								oldAlert += '</div>';
								
								output += oldAlert;
								goodPosts++;
							}
						}
						output += (goodPosts==0) ? '<div class="fb-wall-box" id="facebookContent' + k + '">' : '<div class="fb-wall-box hideObject" id="facebookContent' + k + '">';
						//output += '<a href="http://www.facebook.com/profile.php?id='+data[k].from.id+'" target="_blank">';
						//output += '<img class="fb-wall-avatar" src="'+getAvatarURL(data[k].from.id)+'" />';
						//output += '</a>';
						
						// Likes -------------------------------------------------------------------------------------------------------------------------------
						
						output += '<div class="fb-wall-likes clearfix"><div>';
						//output += '<a href="http://www.facebook.com/profile.php?id='+data[k].from.id+'" class="fb-wall-message-from" target="_blank">'+data[k].from.name+'</a> ';
						
						//output += ' posted the following to Facebook on ';
						
						output += '<span class="fb-wall-date">';
						output += formatDate(data[k].created_time)+'</span><br>';
						
						if(exists(data[k].likes)){
							//console.log(data[k].likes.data);
							output += '<span class="fb-wall-likeCount">';
							if(parseInt(data[k].likes.data.length)==1){
								output += data[k].likes.data[0].name+' '+o.translateLikesThis+'</span> ';
							} else {
								output += data[k].likes.data.length+' '+o.translatePeople+' '+o.translateLikeThis+'</span> ';
							}
						}
						
						
						output += '</div>';
						output += '</div>';
						
						
						// Media -----------------------------------------------------------------------------------------------------------------------------------
						if(exists(data[k].picture)||exists(data[k].link)||exists(data[k].caption)||exists(data[k].description)){
							output += exists(data[k].picture) ? '<div class="fb-wall-media">' : '<div class="fb-wall-media fb-wall-border-left">';
							if(exists(data[k].picture)){
								if(exists(data[k].link)) output += '<a href="'+data[k].link+'" target="_blank" class="fb-wall-media-link">';
								output += '<img alt="Facebook image" class="fb-wall-picture" src="'+data[k].picture+'" />';
								if(exists(data[k].link)) output += '</a>';
							}
							output += '<div class="fb-wall-media-container">';
							if(exists(data[k].name)) output += '<a class="fb-wall-name" href="'+data[k].link+'" target="_blank">'+data[k].name+'</a>';
							if(exists(data[k].caption)) output += '<a class="fb-wall-caption" href="http://'+data[k].caption+'" target="_blank">'+data[k].caption+'</a>';
							if(exists(data[k].properties)){
								for(var p=0;p<data[k].properties.length;p++) output += (p==0) ? '<div>'+formatDate(data[k].properties[p].text)+'</div>' : '<div>'+data[k].properties[p].text+'</div>';
							}
							if(exists(data[k].description)){
								thisDesc = modText(data[k].description);
								if(thisDesc.length>299)thisDesc=thisDesc.substr(0,thisDesc.lastIndexOf(' '))+' ...';
								output += '<span class="fb-wall-description">'+thisDesc+'</span>';
							}
							output += '</div>';
							output += '</div>';
						}
							
						output += '<div class="fb-wall-data">';
						
						output += '<span class="fb-wall-message clearfix">';
						
						if(exists(data[k].message)) output += '<p>' + modText(data[k].message) + '</p>';
						output += '</span>';
						
										
					
						
						
						// Comments -------------------------------------------------------------------------------------------------------------------------------
						if(exists(data[k].comments) && exists(data[k].comments.data) && (o.showComments==true||o.showComments=='true')){
													
							output += '<div class="fb-wall-comments">';
							for(var c=0;c<data[k].comments.data.length;c++){
								output += '<span class="fb-wall-comment">';
								output += '<a href="http://www.facebook.com/profile.php?id='+data[k].comments.data[c].from.id+'" class="fb-wall-comment-avatar" target="_blank">';
								output += '<img alt="Facebook image" src="'+getAvatarURL(data[k].comments.data[c].from.id)+'" />';
								output += '</a>';
								output += '<span class="fb-wall-comment-message">';
								output += '<a class="fb-wall-comment-from-name" href="http://www.facebook.com/profile.php?id='+data[k].comments.data[c].from.id+'" target="_blank">'+data[k].comments.data[c].from.name+'</a> ';
								output += modText(data[k].comments.data[c].message);
								output += '<span class="fb-wall-comment-from-date">'+formatDate(data[k].comments.data[c].created_time)+'</span>';
								output += '</span>';
								output += '</span>';
							}
							output += '</div>';
						}
						
						output += '</div>';
						output += '<div class="fb-wall-clean"></div>';
						output += '</div>';
						
						goodPosts++;
						
					}
					
					k++;
					if(goodPosts == 5 || k == max){
						stopLoop = true;	
					}
				}
				
				// No data found --------------------------------------------------------------------------------------------
				if(max==0){
					output += '<div class="fb-wall-box-first">';
					output += '<img class="fb-wall-avatar" src="'+getAvatarURL(baseData.id)+'" />';
					output += '<div class="fb-wall-data">';
					output += '<span class="fb-wall-message"><span class="fb-wall-message-from">'+baseData.name+'</span> '+o.translateErrorNoData+'</span>';
					output += '</div>';
					output += '</div>';
				}
				meta.html(output).fadeIn(700);
				addFBwallCache(output);
				
				
				var ga = window[window['GoogleAnalyticsObject'] || 'ga'];
				if (typeof ga == 'function') {
				  // call ga object here
				  var pathName = window.location.pathname;
				  ga('send', 'event', 'Facebook Wall', 'loaded', pathName);
				}
				
				setColWidth();
			}
			
			/******************************************************************************************************
			 * Get Avatar URLs
			 ******************************************************************************************************/
			
			function getAvatarURL(id){
				var avatarURL;
				if(id==baseData.id){ avatarURL = (o.useAvatarAlternative) ? o.avatarAlternative : graphURL+id+'/picture?type=square'; }
				else{ avatarURL = (o.useAvatarExternal) ? o.avatarExternal : graphURL+id+'/picture?type=square'; }
				return avatarURL;
			}
						
			/******************************************************************************************************
			 * Parse dateStr as formatted date
			 * @return: if dateStr can't be parsed as Date, return dateStr
			 ******************************************************************************************************/
			 
			function formatDate(dateStr){
				var year, month, day, hour, minute, dateUTC, date, ampm, d, time;
				var iso = (dateStr.indexOf(' ')==-1&&dateStr.substr(4,1)=='-'&&dateStr.substr(7,1)=='-'&&dateStr.substr(10,1)=='T') ? true : false;

				if(iso){
					year = dateStr.substr(0,4);
					month = parseInt((dateStr.substr(5,1)=='0') ? dateStr.substr(6,1) : dateStr.substr(5,2))-1;
					day = dateStr.substr(8,2);
					hour = dateStr.substr(11,2);
					minute = dateStr.substr(14,2);
					dateUTC = Date.UTC(year, month, day, hour, minute);
					date = new Date(dateUTC);
				}else{
					d = dateStr.split(' ');
					if(d.length!=6||d[4]!='at')
						return dateStr;
					time = d[5].split(':');
					ampm = time[1].substr(2);
					minute = time[1].substr(0,2);
					hour = parseInt(time[0]);
					if(ampm=='pm')hour+=12;
					date = new Date(d[1]+' '+d[2]+' '+d[3] +' '+ hour+':'+minute);
					date.setTime(date.getTime()-(1000*60*60*7));
				}
				day = (date.getDate()<10)?'0'+date.getDate():date.getDate();
				month = date.getMonth()+1;
				month = (month<10)?'0'+month:month;
				hour = date.getHours();
				minute = (date.getMinutes()<10)?'0'+date.getMinutes():date.getMinutes();
				if(o.timeConversion==12){
					ampm = (hour<12) ? 'am' : 'pm';
					if(hour==0)hour==12;
					else if(hour>12)hour=hour-12;
					if(hour<10)hour='0'+hour;
					return day+'.'+month+'.'+date.getFullYear()+' at '+hour+':'+minute+' '+ampm;
				}
				return month+'-'+day+'-'+date.getFullYear()+' '+o.translateAt+' '+hour+':'+minute;
			}
			
			/******************************************************************************************************
			 * Helper Function
			 ******************************************************************************************************/
			 
			function exists(data){
				if(!data || data==null || data=='undefined' || typeof(data)=='undefined') return false;
				else return true;
			}
			
			function modText(text){
				return nl2br(autoLink(escapeTags(text)));
			}
			
			function escapeTags(str){
				return str.replace(/</g,'&lt;').replace(/>/g,'&gt;');
			}
			
			function nl2br(str){
				return str.replace(/(\r\n)|(\n\r)|\r|\n/g,"</p><p>");
			}
			
			function autoLink(str){
				return str.replace(/((http|https|ftp):\/\/[\w?=&.\/-;#~%-]+(?![\w\s?&.\/;#~%"=-]*>))/g, '<a href="$1" target="_blank">$1</a>');
			}
			
			function checkFBwallCache(){
				$.ajax({
					type: "POST",
					url: "/admin/lookUp.php",
					data: "action=getFacebookWall&location=" + o.id,
					dataType: "json",
					success:function (data, textStatus, XMLHttpRequest) {
						if (data === false) {
							getAccessToken();
						}else {
							//display the results
							meta.html(data).fadeIn(700);
							setTimeout(function(){
								meta.removeClass('loading');
							},500);
						}
					}
				});
			}
			
			function addFBwallCache(data){
				$.ajax({
					type: "POST",
					url: "/admin/lookUp.php",
					data: "action=getFacebookWall&location=" + o.id + "&data=" + encodeURIComponent(data),
					dataType: "json",
					success:function (returnData, textStatus, XMLHttpRequest) {
						if (returnData === false) {
							getAccessToken();
						}else {
							//display the results
							meta.html(data).fadeIn(700);
							setTimeout(function(){
								meta.removeClass('loading');
							},500);
						}
					}
				});
			}

		});
		
	};

	/******************************************************************************************************
	 * Defaults 
	 ******************************************************************************************************/
	 
	$.fn.fbWall.defaults = {
		avatarAlternative:		'avatar-alternative.jpg',
		avatarExternal:			'avatar-external.jpg',
		id: 					'freshmarket',
		max:					12,
		showComments:			false,
		showGuestEntries:		false,
		translateAt:			'at',
		translateLikeThis:		'like this',
		translateLikesThis:		'likes this',
		translateErrorNoData:	'has not shared any information.',
		translatePeople:		'people',
		timeConversion:			24,
		useAvatarAlternative:	false,
		useAvatarExternal:		false,
		accessToken:			'286966004727872|E0ngibsOqDqOTMbO4GRoso7d5ns'
	};

})(jQuery);
