(function ($) {
    $(function () {
        // http://davidwalsh.name/javascript-debounce-function
        function debounce(func, wait, immediate) {
            var timeout;
            return function () {
                var context = this, args = arguments;
                var later = function () {
                    timeout = null;
                    if (!immediate)
                        func.apply(context, args);
                };
                var callNow = immediate && !timeout;
                clearTimeout(timeout);
                timeout = setTimeout(later, wait);
                if (callNow)
                    func.apply(context, args);
            };
        };    	
/*____________________________________________________________________________________*/    	
    	class People{
    		constructor(selector, template, data){
    			this.selector = selector;
    			this.data = data;
    			this.template = template;
//            	this.sample_people = {
//                		login: '01515b52-6936-46b2-a000-9ad4cd7a5b50',
//                		firstname: "first",
//                		lastname: "last",
//                		phone: '041122221',
//                		email: 'abc@gmail.com',
//                		pay: 0,
//                		hour: 12,
//                		OT: 3,
//                		petrol: 50,
//                		rating: 1,
//                	};    	
            	this.load_data(this.data);
    		}
    		
    		load_data(data){
    			var template = $(this.template).html(); 
    			var html = Mustache.render(template, data);
    			$(this.selector).html(html);
    			//save it
    			$(this.selector).data(data);
    			//draw rating star
    			this.set_ratings(this.data.rating);
    			this.set_unconfirmed_job(this.data.unconfirmedjob);
    		}
    		
    		set_ratings(num){
    			for (var i=1; i<= 5; i++){
    				if (i <=num){
    	    			$(this.selector + " div[name='rating'] span:nth-child(" +i+ ")").addClass('checked');
    				}else{
    					$(this.selector + " div[name='rating'] span:nth-child(" +i+ ")").removeClass('checked');
    				}
    			}
    			this.data.rating = num;
    		}
    		
    		set_unconfirmed_job(num){
    			if( num == 0 )
    				$(this.selector + " span[name='badge']").hide();
    			else
    				$(this.selector + " span[name='badge']").show();
    			this.data.unconfirmedjob = num;
    		}
    		
    	}//end of class People
    	
		function bts_staff_html(data){
			var template = $('#staff_item').html(); 
			var head = '<div class="peopleitem" id="p'+ data.login +'">';
			r = head + '</div>' ;
			return r;
		}

		function bts_client_html(data){
			var template = $('#client_item').html(); 
			var head = '<div class="peopleitem" id="p'+ data.login +'">';
			r = head + '</div>' ;
			return r;
		}
		
		function sample_staff(){
	        for (var i=1; i<100; i++){
	        	var sample_people = {
	            		login: '01515b52-6936-46b2-a000-9ad4cd7a5b50' +i,
	            		firstname: "first"+i,
	            		lastname: "last",
	            		mobile: '041122221' +i,
	            		email: 'abc@gmail.com' + i,
	            		wages: 0,
	            		hour: i,
	            		OT: 3,
	            		petrol: 50 +i,
	            		rating: Math.floor(Math.random() * Math.floor(5)),
	            		unconfirmedjob: Math.floor(Math.random() * Math.floor(30)),
	            	};
	            var html = bts_staff_html(sample_people);
	            jQuery('div.stafflist').append(html);
	            new People("#p" + sample_people.login, sample_people);
	        }
		}
	    function list_staff() {
	    	show_loading_staff();
	    	$('div.stafflist div.peopleitem').remove();
            $.post(bts().ajax_url, { // POST request
                _ajax_nonce: bts().nonce, // nonce
                action: "list_staff", // action
            }, function(response,  status, xhr){
            	if (response.status =='success'){
        	    	hide_loading_staff();
            		response.users.forEach(function(u){
        	            var html = bts_staff_html(u);
        	            jQuery('div.stafflist').append(html);
        	            new People("#p" + u.login,'#staff_item', u);
            		});
            	}else{
            		alert('error getting staff list');
            	}
            });	                	
	    }
	    
	    function list_clients() {
	    	show_loading_client();
	    	$('div.clientlist div.peopleitem').remove(); //clear it
            $.post(bts().ajax_url, { // POST request
                _ajax_nonce: bts().nonce, // nonce
                action: "list_client", // action
            }, function(response,  status, xhr){
            	if (response.status =='success'){
            		response.users.forEach(function(u){
            	    	hide_loading_client();
        	            var html = bts_client_html(u);
        	            jQuery('div.clientlist').append(html);
        	            new People("#p" + u.login, '#client_item' ,u);
            		});
            	}else{
            		alert('error getting Client list');
            	}
            });	                	
	    }
	    
	    function show_loading_staff(){
	    	jQuery('div.stafflist img').attr('src', bts().load_user_img).show();
	    }
	    function show_loading_client(){
	    	jQuery('div.clientlist img').attr('src', bts().load_user_img).show();
	    }
	    function hide_loading_staff(){
	    	jQuery('div.stafflist img').hide();;
	    }
	    function hide_loading_client(){
	    	jQuery('div.clientlist img').hide();
	    }

	    
		function xero(t){
			if (t)
				$('div.xero i').show();
			else
				$('div.xero i').hide();
		}
		
		function wifi(t){
			if (t)
				$('div.wifi i').show();
			else
				$('div.wifi i').hide();
		}
		
		function init_user_search(){
			$('div.b_search input').keyup(debounce(function(e){
				filter_user(e.target);
			}, 500));
		}
		
		function filter_user(input){
			var value = $(input).attr('value');
			value = value.toLowerCase();
			var selector = get_selector_for_filter_people(input);
			$.each( $(selector).find('div.peopleitem'), function(index, e){
				var html = $(e).find('div[name="title"] a').html();
				html = html.toLowerCase();
				if (-1 != html.indexOf(value)){//we find it;
					$(e).show();
				}else{
					$(e).hide();
				}
			});
		}
		
		function get_selector_for_filter_people(input){
			var selector='';
			var role = $(input).attr('placeholder');
			if (role == 'staff') //we filter staff
				selector = 'div.stafflist';
			else if (role = 'client')
				selector = 'div.clientlist';
			return selector;
		}
		
		function init_ts(){
			list_staff();
			list_clients();
			xero(false);
			wifi(false);
			init_user_search();
			ajax_earning_rate();
		}
		
		function ajax_earning_rate(){
	           $.post(bts().ajax_url, { // POST request
	                _ajax_nonce: bts().nonce, // nonce
	                action: "earnings_rate", // action
	            }, function(response,  status, xhr){
	            	bts().earnings_rate = response;
	            	console.log("%o", bts().earnings_rate);
	            });
		}
		
		init_ts();
		
		$(document).on('click', 'div.divTableHead.bdelete', function(){
		    for (var i=1; i<10; i++){
		    	var o = new Job({i:i});
		    }
		});
		
		$(document).on('click', 'div.divTableCell.bdelete', function(){
			if (confirm('delete this job?'))
				$(this).closest('div.divTable').remove();
		});
		
		$(document).on('mouseenter', 'div.divTableCell', function(){
			$(this).closest('div.divTable').addClass('highlight');
		});
		$(document).on('mouseleave', 'div.divTableCell', function(){
			$(this).closest('div.divTable').removeClass('highlight');
		});
			
		$(document).on('click', 'span.ticon.ticon-save', function(){
			var table = $(this).closest('div.divTable')
			table.data().job.do_save_record();
		});
	    
		class Job{ //save data for the record, and display it as GUI
			constructor(data){
				var html = jQuery("#job_item").html();
				this.el = $(html);
		        jQuery('div.workspace').append(this.el);
		        this.load_data(data);
		        dtp_init();
		        this.init_start_rating();
			}
			
			init_start_rating(){
				var self = this;
				this.el.find("div.brating span").click(function(){
					var r = $(this).attr('data-rating');
					self.data.rating = r;
					self.set_rating(r);
				})
				
				this.el.find("div.brating").mouseenter(function(){
					//change to all hollow star
					$(this).find('span').html('☆');
				});
				
				this.el.find("div.brating").mouseleave(function(){
					self.set_rating(self.data.rating);
				});
				
			}
			
			
			load_data(data)
			{
				this.set_job_id(data.id);
				this.set_tos(data.tos);
				this.set_start(data.start);
				this.set_finish(data.finish);
				this.set_rate(data.rate);
				this.set_staff(data.staff);
				this.set_client(data.client);
				this.set_ack(data.ack);
				this.set_rating(data.rating);
				//save to html element
				this.data = data;
				this.el.data({job:this, data:data});
			}
			
			get_job_id(){
				return this.el.find('input[name="id"]').attr('value');
			}
			set_job_id(val){
				return this.el.find('input[name="id"]').attr('value', val);
			}
			get_tos()
			{
				return this.el.find('div.btos select').children("option:selected").val();
			}
			set_tos(val)
			{
				if (typeof(val) =="undefined")
					return;
				this.el.find('div.btos select option[value="'+val+'"]').prop('selected',true);
			}
			get_start(){
				return this.el.find('div.bstart input').attr('value');
			}
			set_start(val)
			{
				if (typeof(val) =="undefined")
					return;
				this.el.find('div.bstart input').attr('value', val);
			}
			get_finish()
			{
				return this.el.find('div.bfinish input').attr('value');
			}
			set_finish(val)
			{
				if (typeof(val) == "undefined")
					return;
				this.el.find('div.bfinish input').attr('value', val);
			}
			get_rate()
			{
				return this.el.find('div.brate select').children("option:selected").val();
			}
			set_rate(val)
			{
				if (typeof(val) =="undefined")
					return;
				this.el.find('div.brate select option[value="'+val+'"]').prop('selected',true);
			}
			get_staff()
			{
				return this.el.find('div.bstaff select').children("option:selected").val();
			}
			set_staff(val)
			{
				if (typeof(val) =="undefined")
					return;
				this.el.find('div.bstaff select option[value="'+val+'"]').prop('selected',true);
			}
			get_client()
			{
				return this.el.find('div.bclient select').children("option:selected").val();
			}
			set_client(val)
			{
				if (typeof(val) =="undefined")
					return;
				this.el.find('div.bclient select option[value="'+val+'"]').prop('selected',true);
			}
			get_ack()
			{
				return this.el.find('div.bconfirmed input:checked').length > 0;
			}
			set_ack(val)
			{
				if (typeof(val) =="undefined")
					return;
				return this.el.find('div.bconfirmed input').prop('checked', val!=0);
			}
			get_rating(){
				var count =0;
				this.el.find('div.brating span').each(function(i,e){
					if ($(e).html()=='★')
						count +=1;
				});
				return count;
			}
			set_rating(num){
				if (!(1 <= num && num <=5))
					return;
				this.el.find('div.brating span').each(function(i,e){
					var rating = $(e).attr('data-rating');
					var rating = parseInt(rating);
					if (rating <= num)
						$(e).html('★');
					else
						$(e).html('☆');
				});
			}
			
			get_record_from_ui(){
				var record = {};
				record.id  = this.get_job_id();
				record.tos = this.get_tos();
				record.start = this.get_start();
				record.finish = this.get_finish();
				record.rate = this.get_rate();
				record.staff = this.get_staff();
				record.client = this.get_client();
				record.ack = this.get_ack();
				return record;
			}
			
			do_save_record(){
			   var self = this;
	           $.post(bts().ajax_url, { // POST request
	                _ajax_nonce: bts().nonce, // nonce
	                action: "save_job", // action
	                record: this.get_record_from_ui(),
	            }, function(response,  status, xhr){
	            	console.log("response for save %o", response);
	            	self.load_data(response.newdata);
	            });
			}
		}//end of class Job
		
		//global GUI  summary
		function get_wages()
		{
			var txt = $('div.wages div').html();
			return parseInt(txt);
		}
		function set_wages(num){
			$('div.wages div').html(num);
		}
		
		function set_working_hours(num){
			$('input#woh').attr('value', num);
		}
		
		function get_working_hours(){
			var txt = $('input#woh').attr('value');
			return parseFloat(txt);
		}
	

		//modal box
		function set_modal_title(selector, title){
			var s = 'div.bts_'+ selector +' .ult_modal-title';
			$(s).html(title);
		}

		function set_modal_content(selector, content){
			var s = 'div.bts_'+ selector +' div.ult_modal-body.ult-html';
			$(s).html(content);
		}
		
		function open_modal (selector){
			var s='div.bts_'+selector+'_button'; 
			$(s).trigger('click');	
		}
		
//		setTimeout(function(){
//			set_modal_title('warning', 'suck title');
//			set_modal_content('warning', 'fucking details');
//			//open_modal('warning');
//		}, 1000);
//
//		setTimeout(function(){
//			set_modal_title('error', 'error title');
//			set_modal_content('error', 'error details');
//			//open_modal('error');
//		}, 5000);
		
		$(document).on('mouseenter', 'div.week1 div', function(){
			$(this).addClass('blink_me');
			get_week2_partner(this).addClass('blink_me');
		});
		$(document).on('mouseleave', 'div.week1 div', function(){
			$(this).removeClass('blink_me');
			get_week2_partner(this).removeClass('blink_me');
		});
		
		function get_week2_partner(div){
			var index = $(div).index()+1;
			return $('div.week2 div:nth-child('+index+')');
		}
		
		function init_weekdays(){
			var curr = new Date; // get current date
			// First day is the day of the month - the day of the week
			var first = curr.getDate() - curr.getDay() + 1; //+1 we want Mon as first 
			var last = first + 6; // last day is the first day + 6

			//var firstday = new Date(curr.setDate(first)); //Mon
			//var lastday = new Date(curr.setDate(last)); //Sun
			
			var pos = 1; //first lot
			for (var i=first; i<=last; i++)
			{
				var d1 = new Date(curr.setDate(i));
				var d2 = new Date(curr.setDate(i+7));
				set_day_number(1,pos, d1); //week 1
				set_day_number(2,pos, d2); //week 2
				pos +=1;
			}
		}
		
		function set_day_number(week, index, date){
			var selector = 'span[name="w'+week+'d'+index+'"]';
			$(selector).html(date.getDate());
			$(selector).data({date:date});
		}
		
		function format_date(date) {
			  var monthNames = [
			    "January", "February", "March",
			    "April", "May", "June", "July",
			    "August", "September", "October",
			    "November", "December"
			  ];

			  var day = date.getDate();
			  var monthIndex = date.getMonth();
			  var year = date.getFullYear();

			  return day + ' ' + monthNames[monthIndex] + ' ' + year;
		}		
		function set_today(){
			var selector = 'div.sheettitle span[name="today"]';
			var curr = new Date;
			$(selector).html(format_date(curr));
		}
		
		Date.prototype.get_week_number = function(){
			  var d = new Date(Date.UTC(this.getFullYear(), this.getMonth(), this.getDate()));
			  var dayNum = d.getUTCDay() || 7;
			  d.setUTCDate(d.getUTCDate() + 4 - dayNum);
			  var yearStart = new Date(Date.UTC(d.getUTCFullYear(),0,1));
			  return Math.ceil((((d - yearStart) / 86400000) + 1)/7)
		};
		
		function set_week_number(){
			var date = $('span[name="w1d1"]').data().date;
			console.log("date %o", date);
			var num = date.get_week_number();
			$('div.weekly span[name="week1"]').html(num);
			$('div.weekly span[name="week2"]').html(num+1);
		}
		
		$('div.prevweek.left').click(function(){
			$('div.weekdays span.weekday').each(function(i, e){
				var date = $(e).data().date;
				var newdate = new Date(date.setDate(date.getDate() -7 ));
				$(e).html(newdate.getDate());
				$(e).data({data:newdate});
			});
			set_week_number();
			load_timesheet();
		});
		$('div.nextweek.right').click(function(){
			$('div.weekdays span.weekday').each(function(i, e){
				var date = $(e).data().date;
				var newdate = new Date(date.setDate(date.getDate() +7 ));
				$(e).html(newdate.getDate());
				$(e).data({data:newdate});
			});
			set_week_number();
			load_timesheet();
		});
		
		$('div.weekly div.weekname.prev').click(function(){
			if (!confirm ('copy entire week to next week? '))
				return;
		});
		
		$('div.weekly div.weekname.next').click(function(){
			if (!confirm ('copy entire week to previous week? '))
				return;
		});
		
		$('div.week1 > div').click(function(){
			if (!confirm ('copy to next week'))
				return;
		});
		
		$('div.sheettitle h1').click(function(){
			reset_title_to_today();
		})

		function reset_title_to_today(){
			set_today();
			init_weekdays();
			set_week_number();
			load_timesheet();
		}

		
		function load_timesheet()
		{
			clear_workspace();
			var first = $('span[name="w1d1"]').data().date;
			var last = $('span[name="w2d7"]').data().date;
            $.post(bts().ajax_url, { // POST request
                _ajax_nonce: bts().nonce, // nonce
                action: "list_job", // action
                start: format_date(first),
                finish: format_date(last),
            }, function(response,  status, xhr){
            	if (response.status =='success'){
            		response.jobs.forEach(function(job){
            			new Job(job);
            		});
            		//filter it if reqired
            		do_filter_workspace();
            	}else{
            		alert('error loading job');
            	}
            });	 			
			
		}
		
		function format_date(date){
			var dd = date.getDate();
			var mm = date.getMonth() + 1; //January is 0!

			var yyyy = date.getFullYear();
			if (dd < 10) {
			  dd = '0' + dd;
			} 
			if (mm < 10) {
			  mm = '0' + mm;
			} 
			return  yyyy + '-' + mm + '-' +dd ;
		}
		
		function clear_workspace()//clear all timesheet jobs
		{
			$('div.workspace > div.divTable').remove();
			//clear datetime picker
			$('div.xdsoft_datetimepicker').remove();
		}
		
		$('button[name="confirmschedule"]').click(function(){
			$('span.ticon.ticon-save').trigger('click');
		});
		
		
		$(document).on('click','div.userlist', debounce(do_filter_workspace));
		
		function do_filter_workspace(){
			var staffs =[];
			$('div.stafflist div.peopleitem :checked').each(function(i, e){
				var id = $(e).parent().attr('data-id');
				//console.log("%o, id=%s", e, id);
				staffs.push(id.substring(1));
			});
			
			var clients =[];
			$('div.clientlist div.peopleitem :checked').each(function(i, e){
				var id = $(e).parent().attr('data-id');
				//console.log("%o, id=%s", e, id);
				clients.push(id.substring(1));
			});
			
			console.log('staffs %o' , staffs);
			console.log('clients %o' , clients);
			
			filter_workspace(staffs, clients);
		}
		
		function filter_workspace(staffs, clients){
			
			//if both array is empty
			if( (staffs === undefined || staffs.length ==0) &&
					(clients===undefined || clients.length ==0)){
				//show all
				$('div.workspace div.divTable').show();
				return;
			}
			
			//filter some of them;
			$('div.workspace div.divTable').each(function(i,e){
				var job = $(e).data().job;
				var s = job.get_staff();
				var c = job.get_client();
				
				if (staffs.indexOf(s) ==-1 && clients.indexOf(c) ==-1)
					$(this).fadeOut();
				else
					$(this).fadeIn();
			});
		}

		
		reset_title_to_today();
/*________________________________________________________________________*/    	
    });
})(jQuery);


/*______________scrolling______________________________________________*/
jQuery(document).ready(function(){
    var timeoutid =0;

    jQuery('button.peoplelist[name="down"]').mousedown(function(){
        var button  = this;
        timeoutid = setInterval(function(){
            //console.log("down scrotop %d ", jQuery(button).parent().find(".userlist").get(0).scrollTop );
        	jQuery(button).parent().find(".userlist").get(0).scrollTop +=240;    
        }, 100);
    }).on('mouseup mouseleave', function(){
        clearTimeout(timeoutid);
    });
                                                 
    jQuery('button.peoplelist[name="up"]').mousedown(function(){
        var button = this;
        timeoutid = setInterval(function(){
            //console.log("up scrotop %d ", jQuery(button).parent().find(".userlist").get(0).scrollTop );
            jQuery(button).parent().find(".userlist").get(0).scrollTop -=240;
        }, 100);
    }).on('mouseup mouseleave', function(){
        clearTimeout(timeoutid);
    });
    
});