(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({obj:this, 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;
    		}
    		
    		reset_summary() {
    			this.summary = {
    				wages : 0,
    				normal_hour : 0,
    				ot_hour : 0,
    				petrol : 0,
    			};
    			this.update_summary_in_gui();
    		}
    		
    		add_payment_summary(ps)
    		{
    			//{ot: false, hour: "2.67", money: "76.90"}
    			this.summary.wages += ps.money;
    			if (! ps.ot )
    				this.summary.normal_hour += ps.hour;
    			else
    				this.summary.ot_hour += ps.hour;
    			this.update_summary_in_gui();
    		}
    		
    		update_summary_in_gui()
    		{
    			var msg = '$' + this.summary.wages.toFixed(2);
    			$(this.selector).find('div[name="wages"]').html(msg);
    			
    			msg = this.summary.normal_hour.toFixed(2) + '+' +this.summary.ot_hour.toFixed(2) + 'hr';
    			$(this.selector).find('div[name="hours"]').html(msg);
    			
    			msg = 'petrol:' + this.summary.petrol.toFixed(2) + 'km';
    			$(this.selector).find('div[name="petrol"]').html(msg);
    		}
    	}//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
            }).done(function(response,  status, xhr){
            	if (response.status =='success'){
            		bts().staff = response.users;
            		response.users.forEach(function(u){
        	            var html = bts_staff_html(u);
        	            jQuery('div.stafflist').append(html);
        	            new People("#p" + u.login,'#staff_item', u);
            		});
        	    	hide_loading_staff();
        	    	calculate_total_hour_and_money();
            	}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'){
            		bts().client = response.users;
            		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 show_loading_jobs(){
	    	jQuery('div.workspace img').attr('src', bts().load_job_img).show();
	    }
	    function hide_loading_jobs(){
	    	jQuery('div.workspace 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 csv(t){
			if (t)
				$('div.csv i').show();
			else
				$('div.csv 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){
				//uncheck everyone
				$(e).find('input[type="checkbox"]').prop('checked', false); 
				
				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;
		}
		
		
		$(document).on('click', 'div.divTableHead.bdelete', function(){
			add_new_empty_job();
		});

		function add_new_empty_job(){
		    var o = new Job({empty:true});
		    $('div.workspace').append(o.el);
		    o.el.get(0).scrollIntoView();
		    dtp_init();
		}
		$(document).on('click', 'div[name="copyschedule"]', function(e){
			e.stopPropagation();
			add_new_empty_job();
		});
		
		$(document).on('click', 'div.divTableCell.bdelete', function(){
			var job = $(this).closest('.divTable').data().job;
			var el = $(this).closest('div.divTable'); 
			if ( job.get_job_id() == '')
				el.remove();
			else{
				if (confirm('delete this job?')){
		            $.post(bts().ajax_url, { // POST request
		                _ajax_nonce: bts().nonce, // nonce
		                action: "delete_job", // action
		                jobid: job.data.id,
		            }, function(response,  status, xhr){
		            	if (response.status=='success'){
		            		el.addClass('blink_me');
		            		el.fadeOut(900);
		            		setTimeout(function(){
		            			el.remove();	
		            		}, 900);
							
		            	}else{
		            		alert( 'error saving data, please check your network');
		            	}
		            });
				}
			}
		});
		
		$(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', 'div.workspace span.ticon.ticon-save', function(){
			var table = $(this).closest('div.divTable');
			table.data().job.do_save_record();
		});
		$(document).on('click', '.divTableHeading span.ticon.ticon-save', function(){
			//save all
			$('div.workspace span.ticon.ticon-save').each(function (i,e){
				if ($(this).is(":visible"))
					$(this).trigger('click');
			});
		});
		
		
		$(document).on('click', 'span.ticon.ticon-copy', function(){
			if (!confirm("make a copy of this job?"))
				return;
			var table = $(this).closest('div.divTable');
			var job = table.data().job;
			var newj = clone_data_create_new_job(job.get_record_from_ui());
			$('div.workspace').append(newj.el);
			newj.el.get(0).scrollIntoView();//make sure it's visible;
			newj.mark_highlight_me(1000);//for 1 second;
			dtp_init();
		});		
	    
		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);
		        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.mark_dirty();
					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)
			{
				//save to html element
				this.data = data;
				this.el.data({job:this, data:data});

				//draw GUI
				this.clear_err_msg();
				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);
				
				//draw GUI by other
				this.mark_dirty_on_new_record(data);
		        this.mark_week_color();
		        this.validate(); //also triggers mark errors
			}
			
			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();
				record.rating = this.get_rating();
				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){
	            	if (response.status=='success'){
		            	self.load_data(response.newdata);
		            	self.mark_saved();
		            	self.mark_old();
	            	}else{
	            		alert( 'error saving data, please check your network');
	            	}
	            });
			}
			
			mark_dirty_on_new_record(data){
		        if (typeof(data.id) === 'undefined' || data.id == ''){
		        	this.mark_dirty();
		        	this.mark_new();
		        }
		        else{
		        	this.mark_saved();
		        }				
			}
			
			mark_dirty() //need save
			{
				var d = this.el.find('.bsave');
				d.removeClass('saved');
				d.addClass('blink_me');
				setTimeout(function(){
					d.removeClass('blink_me');
					d.removeClass('saved');
				},1000);
			}
			
			mark_saved()
			{
				var d = this.el.find('.bsave');
				
				d.addClass('blink_me');
				setTimeout(function(){
					d.removeClass('blink_me');
					d.addClass('saved');
				},1000);
			}
			
			//newly created empty record
			mark_new()
			{
				this.el.addClass('emptyrecord');
			}
			mark_old()
			{
				this.el.removeClass('emptyrecord');
			}
			
			mark_highlight_me(ms){
				this.el.addClass('blink_me');
				this.el.addClass('highlight');
				this.el.addClass('newcopy');
				var self = this;
				setTimeout(function(){
					self.el.removeClass('blink_me');
					self.el.removeClass('highlight');
					self.el.removeClass('newcopy');
				},ms);
			}
			
			is_start_valid(){
				var s = this.get_start();
				return is_valid_date_str(s);
				
			}
			is_finish_valid(){
				var f = this.get_finish();
				if (!is_valid_date_str(f))
					return false;
			}
			
			is_finish_resonable(){
				var f = this.get_finish();
				if (!is_valid_date_str(f))
					return false;
				var s = this.get_start();
				
				s = new Date(s);
				f = new Date(f);
				
				return (s < f);
			}
			
			validate()
			{
				var ok_time = this.validate_start() && 
						 this.validate_finish(); //finish might not be executed, if start is wrong 
				var ok_tos = this.validate_tos(); //make sure this validate is executed;
				var ok_rate = this.validate_rate() ; //make sure this validate is executed
				var ok = ok_time && ok_tos && ok_rate;
				if (ok){
					this.el.removeClass('invalidjob');
				}else{
					this.el.addClass('invalidjob');
				}
				return ok;
			}
			
			validate_start(){
				var str = this.get_start();
				if ( is_valid_date_str(str) ){
					this.mark_start_valid();
					this.set_err_msg_start('');
					return true;
				}else{
					this.mark_start_invalid();
					this.set_err_msg_start('wrong date');
					return false;
				}
			}
			validate_finish()
			{
				var str = this.get_finish();
				if (! is_valid_date_str(str)){
					this.set_err_msg_finish('wrong date');
					this.mark_finish_invalid();
					return false;
				}
				
				if (!this.is_finish_resonable()){
					this.set_err_msg_finish("older than start")
					this.mark_finish_invalid();
					return false;
				}
				this.mark_finish_valid();
				this.set_err_msg_finish('');
				return true;
			}
			validate_rate()
			{
				var rate_info = this.get_rate_info_by_id(this.get_rate());
				if ( rate_info.RatePerUnit <= 0){
					this.set_err_msg_rate('bad rate');
					this.mark_rate_invalid();
					return false;
				}
//				if (this.get_rate() != this.data.rate){
//					this.set_err_msg_rate('rate@Xero inactive ' + this.data.rate);
//					this.mark_rate_invalid();
//					this.mark_dirty();
//					return false;
//				}
				this.set_err_msg_rate('');
				this.mark_rate_valid();
				return true;
			}
			
			validate_tos(){
//				if (this.get_tos() != this.data.tos){
//					this.set_err_msg_tos('require NDIS ' + this.data.tos);
//					this.mark_tos_invalid();
//					this.mark_dirty();
//					console.log('tos mark dirty');
//					return false;
//				}
				this.set_err_msg_tos('');
				this.mark_tos_valid();
				return true;
			}
			
			clear_err_msg(){
				this.el.find('.divTableRow.errmsg > div').html('');
			}
			set_err_msg_start(str)
			{
				this.el.find('div.bstart_err').html(str);
			}
			set_err_msg_finish(str)
			{
				this.el.find('div.bfinish_err').html(str);
			}
			set_err_msg_rate(str)
			{
				this.el.find('div.brate_err').html(str);
			}
			set_err_msg_save(str)
			{
				this.el.find('div.bsave_err').html(str);
			}
			set_err_msg_tos(str)
			{
				this.el.find('div.btos_err').html(str);
			}

			mark_tos_valid(){
				this.el.find('div.btos select').removeClass('invalid');
			}
			mark_tos_invalid(){
				this.el.find('div.btos select').addClass('invalid');
			}
			mark_start_valid(){
				this.el.find('div.bstart input').removeClass('invalid');
			}
			mark_start_invalid(){
				this.el.find('div.bstart input').addClass('invalid');
			}
			
			mark_finish_valid(){
				this.el.find('div.bfinish input').removeClass('invalid');
			}
			mark_finish_invalid(){
				this.el.find('div.bfinish input').addClass('invalid');
			}
			mark_rate_valid(){
				this.el.find('div.brate select').removeClass('invalid');
			}
			mark_rate_invalid(){
				this.el.find('div.brate select').addClass('invalid');
			}
			
			mark_week_color(){
				this.el.find('div.brating').removeClass('week1color');
				this.el.find('div.brating').removeClass('week2color');
				
				if (this.is_week1()){
					this.el.find('div.brating').addClass('week1color');
				}else if (this.is_week2()){
					this.el.find('div.brating').addClass('week2color');
				}
			}
			
			is_week1()
			{
				var w1_begin = new Date($('span[name="w1d1"]').data().date) ;
				var w1_end = new Date($('span[name="w1d7"]').data().date);
				w1_begin.setHours(0,0,0,0);
				w1_end.setHours(23,59,59);
				//console.log("week1 begin %o, end %o", w1_begin, w1_end);
				//w1_end = new Date (w1_end.setDate(w1_end.getDate()+1)); //from 00:00 to 23:59;
				var me = new Date(this.data.start);
				return (w1_begin <= me && me <= w1_end );
			}
			
			is_week2()
			{
				var w2_begin = new Date($('span[name="w2d1"]').data().date);
				var w2_end = new Date($('span[name="w2d7"]').data().date);
				w2_begin.setHours(0,0,0,0);
				w2_end.setHours(23,59,59);
				var me = new Date(this.data.start);
				return (w2_begin <= me && me <= w2_end );
			}
			get_payment_summary(){
				var result ={};
				result.ot = this.get_is_high_pay();
				result.hour = this.get_working_duration();
				result.money = this.get_wages();
				return result;
			}
			get_is_high_pay()
			{
				var rate_info = this.get_rate_info_by_id(this.get_rate());
				return  this.is_high_pay_hour(rate_info);
			}
			get_working_duration()
			{
				//finish - start
				var f = new Date(this.get_finish());
				var s = new Date(this.get_start());
				var diff = f.getTime() - s.getTime();
				var hours = Math.floor(diff / 1000 / 60 / 60);
				diff -= hours * 1000 * 60 * 60;
				var minutes = Math.floor(diff / 1000 / 60);
				var minute_to_hour = minutes/60;
				return (hours + minute_to_hour);
			}
			get_wages(){
				var hour = this.get_working_duration();
				var rate_info = this.get_rate_info_by_id(this.get_rate());
				return hour * rate_info.RatePerUnit;
			}
			
			get_rate_info_by_id(id){
				var rate_info = {};
				var rates = bts().earnings_rate;
				for(var i =0; i< rates.length; i++){
					var r = rates[i];
					if(r.EarningsRateID == id){
						rate_info = $.extend(true,{}, r);//make a copy
						break;
					}
				}
				return rate_info;
			}
			
			is_high_pay_hour(rate_info){
		    	var keywords =bts().high_pay_keywords;
				var found = false;
				keywords.forEach(function(e){
					if (-1 != rate_info.Name.toLowerCase().indexOf(e.toLowerCase()) )
						found = true;
				});
				return found;
			}
		}//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');
			blink_same_date_by_div(this);
		});
		$(document).on('mouseleave', 'div.week1 div', function(){
			$(this).removeClass('blink_me');
			get_week2_partner(this).removeClass('blink_me');
			unblink_all_date();
		});
		
		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
			init_weekdays_by_anchor(curr, true);
			return;
		}

		function init_weekdays_by_anchor(anchor, is_week1){
			var curr = new Date(anchor); // get the date;
			
			if (!is_week1){ //it is week2, shift for 7 days;
				curr.setDate(curr.getDate() -7); //curr will be changed; 
			}

			var first = curr.getDate() - curr.getDay() + 1; //+1 we want Mon as first 
			var last = first + 6; // last day is the first day + 6
			
			if (curr.getDay() == 0 ){// it's Sunday;
				last = curr.getDate();
				first = last - 6;
			}
			
			
			var pos = 1; //first lot
			for (var i=first; i<=last; i++)
			{
				var now = new Date(curr);
				var d1 = new Date(now.setDate(i));
				now = new Date(curr);
				var d2 = new Date(now.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});
			//console.log('set w%d-d%d %o', week,index,date);
		}
		
		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);
			
			set_week_boundry();
		}
		
		function set_week_boundry()
		{
			var date = $('span[name="w1d1"]').data().date;
			$('#week1b').attr('value', format_date(date));
			var date = $('span[name="w2d7"]').data().date;
			$('#week2b').attr('value', format_date(date));
		}
		
		function number_of_unsaved_job(){
			var count =0;
			var total_job = $('div.bsave').length -1;//remove table header
			var total_saved = $('div.bsave.saved').length;
			var empty = $('div.emptyrecord').length;
			count = total_job - total_saved - empty;
			return count;
		}
		
		$('div.prevweek.left').click(function(){
			if (number_of_unsaved_job() > 0){
				if(!confirm("you have unsaved jobs, proceed will lost them"))
					return;
			}
			$('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();
			debounced_load_timesheet();
		});
		$('div.nextweek.right').click(function(){
			if (number_of_unsaved_job() > 0){
				if(!confirm("you have unsaved jobs,proceed will lost them"))
					return;
			}
			
			$('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();
			debounced_load_timesheet();
		});
		
		$('div.weekly div.weekname.prev >input ').click(function(e){
			e.stopPropagation();
		});		
		$('div.weekly div.weekname.prev >input ').change(function(e){
			var date = $('#week1b').attr('value');
			init_weekdays_by_anchor(date, true);
			set_week_number();
			debounced_load_timesheet();
		});		
		
		$('div.weekly div.weekname.prev').click(function(){
			if (!confirm ('copy entire week to next week? '))
				return;
			var jobs = [];
			var job_els =[];
			$('div.week1 >div').each(function(i,e){
				var date = new Date($(e).find('span.weekday').data().date);
				var strDate = format_date(date); //yyyy-mm-dd
				$('div.bstart input').each(function(i,e){
					var value = $(e).attr('value'); 
					if( -1 != value.indexOf(strDate) ) //found
					{
						var el = $(e).closest('div.divTable');
						if (el.is(":visible")){
							var j = el.data().job;
							var newj = clone_data_create_new_job(j.get_record_from_ui(),7);//add 7 days
							job_els.push(newj.el);
						}
					}
				});
			});
			show_jobs(job_els);
			debounced_calculate();
		});

		$('div.weekly div.weekname.next > input').click(function(e){
			e.stopPropagation();
		});
		
		$('div.weekly div.weekname.next >input ').change(function(e){
			e.stopPropagation();
			var date = $('#week2b').attr('value');
			init_weekdays_by_anchor(date, false);
			set_week_number();
			debounced_load_timesheet();
		});		
		
		
		$('div.weekly div.weekname.next').click(function(e){
			$(e).find('input').trigger('click');
		});
		

		$('div.week1 > div').click(function(e){
			e.stopPropagation();
			if ($('div.bstart input.blink_me').length == 0){
				alert("nothing to copy");
				return;
			}
			if (!confirm ('copy to next week'))
				return;
			var jobs_el = [];
			$('div.bstart input.blink_me').each(function(i,e){
				var r = copy_single_day_to_next_week(e);
				if (r != false)
					jobs_el.push(r.el);
			});
			show_jobs(jobs_el);
			unblink_all_date();
		});
		
		$('div.week1,div.week2').click(function(e){
			e.stopPropagation();
			$(this).toggleClass('filtered');
			do_filter_workspace();
		});
		
		function copy_single_day_to_next_week(el){
			var tb = $(el).closest('div.divTable');
			if (tb.is(':visible')){
				var j = $(tb).data().job;
				var newj = clone_data_create_new_job(j.get_record_from_ui() , 7); // +7 days
				return newj;
			}
			return false;
		}
		
		function clone_data_create_new_job(val, num_of_shifted_days){
			var data = $.extend(true, {}, val);//make a copy
			num_of_shifted_days = typeof num_of_shifted_days !=='undefined'? num_of_shifted_days: 0;// 0 days
			//reset 
			data.id='';
			data.ack = 0;
			data.rating = 0;
			
			if (is_valid_date_str(data.start)){
				var s = new Date(data.start);
				var s1 = s.getDate() + num_of_shifted_days;
				s = new Date(s.setDate(s1));
				data.start = format_date_time(s);	
			}
			if (is_valid_date_str(data.finish)){
				var f = new Date(data.finish);
				var f1 = f.getDate() + num_of_shifted_days;
				f = new Date(f.setDate(f1));
				data.finish = format_date_time(f);
			}
			var newj = new Job(data);
			return newj;
		}
		
		function is_valid_date_str(val){
			var d = new Date(val);
			if (d.toString()== 'Invalid Date')
				return false;
			return true;
		}
		
		function blink_same_date_by_div(div){
			var date = new Date($(div).find('span.weekday').data().date);
			blink_same_date(date);
		}
		
		function blink_same_date(date){
			var strDate = format_date(date); //yyyy-mm-dd
			var els=[];
			unblink_all_date();
			$('div.bstart input').each(function(i,e){
				if ( $(e).is(":visible") ){
					var value = $(e).attr('value'); 
					if( -1 != value.indexOf(strDate) ) //found
					{
						els.push(e);
						$(e).addClass('blink_me');
					}
				}
			});
		}
		
		
		function unblink_all_date(){
			$('div.bstart input').removeClass('blink_me');
		}
		
		$('div.sheettitle h1 span').click(function(){
			reset_title_to_today();
			load_timesheet();
		});

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

		var debounced_load_timesheet = debounce(load_timesheet,1000);
		
		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'){
            		var job_els = [];
            		response.jobs.forEach(function(job){
            			//console.log('loading job... %o', job);
            			var o = new Job(job);
            			job_els.push(o.el);
            		});
            		show_jobs(job_els, 'in-ajax=true');
            		//filter it if reqired
            		debounced_filter_workspace();
            	}else{
            		alert('error loading job');
            	}
            	hide_loading_jobs();
            });			
			
		}
		
		function show_jobs(job_els, in_ajax){
			if (job_els.length >0){
				$('div.workspace').append(job_els);
				job_els[0].get(0).scrollIntoView();
				console.log('loading ...  %d jobs', job_els.length);
			}
			if (typeof in_ajax =='undefined')
				dtp_init();
		}
		
		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 format_date_time(date){
			var strdate = format_date(date);
			var hh = date.getHours();
			if (hh<10){
				hh= '0' + hh;
			}
			var mm = date.getMinutes();
			if (mm<10){
				mm='0' + mm;
			}
			return strdate + ' ' + hh + ":" + mm;
		}
		
		function clear_workspace()//clear all timesheet jobs
		{
			$('div.workspace > div.divTable').remove();
			//clear datetime picker
			$('div.xdsoft_datetimepicker').remove();
			//
			show_loading_jobs();
		}
		
		$('div.workinghours').click(function(){
			$('div.bts_message_button').trigger('click');
		});
		
		$('button[name="confirmschedule"]').click(function(){
			if (!confirm('sending email to each staff for their job arrangement?'))
				return;
			$('div.bts_message .ult-overlay-close-inside').hide();
			$('div.bts_message_button').trigger('click');
			setTimeout(do_email_jobs, 2000);//2 seconds for dialog to popup
		});
		
		$('button[name="confirmschedule"]').mouseenter(function(){
			$('div.week2').addClass('blink_me');
		})
		$('button[name="confirmschedule"]').mouseleave(function(){
			$('div.week2').removeClass('blink_me');
		})
		var debounced_filter_workspace = debounce(do_filter_workspace, 1000);
		$(document).on('click','div.userlist', debounced_filter_workspace);
		
		function do_filter_workspace(){
			var staffs =[];
			$('div.stafflist div.peopleitem :checked').each(function(i, e){
				if ($(e).parent().is(':visible')){
					var id = $(e).parent().attr('data-id');
					//console.log("%o, id=%s", e, id);
					staffs.push(id.substring(1));
				}
			});
			
			var clients =[];
			$('div.clientlist div.peopleitem :checked').each(function(i, e){
				if ($(e).parent().is(':visible')){
					var id = $(e).parent().attr('data-id');
					//console.log("%o, id=%s", e, id);
					clients.push(id.substring(1));
				}
			});
			
			filter_workspace(staffs, clients);
			filter_workspace_by_weeks();
			debounced_calculate();
		}
		
		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;
			}
			
			//if staffs is empty, we only filter by client
			if (staffs === undefined || staffs.length ==0){
				filter_workspace_by_client(clients);
				return;
			}
			
			//if clients is empty, we only filter by staff
			if (clients===undefined || clients.length ==0){
				filter_workspace_by_staff(staffs);
				return;
			}
			//filter by both
			filter_workspace_by_both(staffs, clients);

		}
		
		function filter_workspace_by_staff(staffs)
		{
			//filter some of them;
			$('div.workspace div.divTable').each(function(i,e){
				var job = $(e).data().job;
				var s = job.get_staff();
				
				if (staffs.indexOf(s) ==-1)
					$(this).fadeOut();
				else
					$(this).fadeIn();
			});
		}
		
		function filter_workspace_by_client(clients)
		{
			//filter some of them;
			$('div.workspace div.divTable').each(function(i,e){
				var job = $(e).data().job;
				var c = job.get_client();
				
				if (clients.indexOf(c) ==-1)
					$(this).fadeOut();
				else
					$(this).fadeIn();
			});
		}
		
		function filter_workspace_by_both(staffs, clients)
		{
			//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();
			});			
		}
		
		function filter_workspace_by_weeks(){
			var hide_week1 = $('div.week1').hasClass('filtered');
			var hide_week2 = $('div.week2').hasClass('filtered');
			
			if (hide_week1 && hide_week2 ){
				alert("You are hiding both weeks");
			}

			$('div.workspace div.divTable').each(function(i,e){
				var job = $(e).data().job;
				if ((hide_week1 && job.is_week1()) || 
					(hide_week2 && job.is_week2()) ){
					$(e).fadeOut();
				}
			});
		}
		
		var debounced_calculate = debounce(calculate_total_hour_and_money, 2000);
		
		function calculate_total_hour_and_money()
		{
			//init pays for all staff;
			var pays={
					total: 0,
					hours: 0,
			};
			$('.stafflist > div.peopleitem').each(function(i,e){
				var people = $(this).data().obj;
				people.reset_summary();
			});
			
			$('div.workspace > .divTable').each(function(i,e){
				if (! $(e).is(':visible'))
					return;
				
				var job = $(e).data().job; //class Job
				if (typeof job === 'undefined')
					return;
				var ps = job.get_payment_summary();
				
				pays.total += ps.money;
				pays.hours += ps.hour;
				
				var staff = job.get_staff();
				var people = find_staff(staff); //class People
				if (people !=false)
					people.add_payment_summary(ps);
			});
			set_wages(pays.total.toFixed(2));
			set_working_hours(pays.hours.toFixed(2));
		}
		
		function find_staff(login)
		{
			var d = $('#p'+login).data();
			if (typeof d === 'undefined')
				return false;
			return $('#p'+login).data().obj;
		}
		
		$(document).on('change', '.divTableRow select, .divTableRow input', function() {
			  var job = $(this).closest('.divTable').data().job;
			  job.validate();
			  job.mark_dirty();
			  debounced_calculate();
		});
		
		function init_ts(){
			show_loading_jobs();
			list_staff();
			list_clients();
			xero(false);
			wifi(false);
			csv(false);
			init_user_search();
			//ajax_earning_rate();
			reset_title_to_today();
			load_timesheet();
		}
		
		function do_email_jobs()
		{
			var selector = 'div.bts_message div.ult_modal-body'; 
			$(selector).html('Analysis staff jobs ... ok');
			var staff = bts().staff.slice(0);//copy this array;
			var s = staff.pop();
			
			//week2 start
			var w2_begin = new Date($('span[name="w2d1"]').data().date);
			var w2_end = new Date($('span[name="w2d7"]').data().date);
			var start = format_date(w2_begin);
			var finish = format_date(w2_end);
				
			function do_staff(){
				var el = $('<p> Checking ' + s.firstname + "....</p>");
				$(selector).append(el);
				el[0].scrollIntoView();
				
		        $.post(bts().ajax_url, { // POST request
		            _ajax_nonce: bts().nonce, // nonce
		            action: "email_job", // action
		            staff : s.login,
		            start : start,
		            finish: finish,	
		        }, function(response,  status, xhr){
		        	if (response.status == 'success'){
		        		if (response.sent){
		        			el.append('<span class="sent">' + response.emailstatus + '</span>');		        			
		        		}else{
		        			el.append('<span class="nojob">' + response.emailstatus + '</span>');		
		        		}
		        	}else{
		        		el.append('<span class="error"> Error[' + response.error + ' ...]</span>');	
		        	}
		        }).fail(function(){
		        	el.append('<span class="error">' + 'Network Error occured' + '</span>');
		        	//clear staff pending list, stop further processing
		        	s = [];
		        }).always(function(){//next staff
					if (staff.length >0){
						s = staff.pop();
						setTimeout(do_staff, 100); //a short delay makes it looks nice
					}else{
						$('div.bts_message .ult-overlay-close-inside').show();
						$('div.bts_message .ult-overlay-close-inside').addClass('blink_me');
						$('div.week2').removeClass('blink_me');
						$(selector).append('<span class="sent">All staff confirmed! </span>');
					}
		        });			
			}
			//execute 
			do_staff();
		}
		
//		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);
//	            });
//		}
		

		$( ".boundary_datepicker" ).datepicker();
		$( ".boundary_datepicker" ).datepicker("option", "dateFormat", "yy-mm-dd");
		
		init_ts();
		
		
/*________________________________________________________________________*/    	
    });
})(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);
    });
    
});