@extends('header')

@section('content')

	<p>&nbsp;</p>


	{{ Former::open($url)->method($method)->addClass('main_form')->rules(array(
  		'invoice_number' => 'required',
  		'invoice_date' => 'required',
  		'product_key' => 'max:14',
	)); }}

	<!-- <h3>{{ $title }} Invoice</h3> -->

	@if ($invoice)
		{{ Former::populate($invoice); }}
		{{ Former::populateField('invoice_date', fromSqlDate($invoice->invoice_date)); }}	
		{{ Former::populateField('due_date', fromSqlDate($invoice->due_date)); }}
	@else
		{{ Former::populateField('invoice_number', $invoiceNumber) }}
		{{ Former::populateField('invoice_date', date('m/d/Y')) }}
	@endif
    
    <div class="row">
    	<div class="col-md-6">
			{{ Former::select('client')->addOption('', '')->fromQuery($clients, 'name', 'public_id')->select($client ? $client->public_id : '')
				->help('<a style="cursor:pointer" data-toggle="modal" data-target="#myModal">Create new client</a>') }}
			{{ Former::textarea('notes') }}
		</div>
		<div class="col-md-5">
			{{ Former::text('invoice_number')->label('Invoice #') }}
			{{-- Former::text('invoice_date')->label('Invoice Date')->data_date_format('yyyy-mm-dd') --}}
			{{ Former::text('invoice_date')->label('Invoice Date') }}
			{{ Former::text('due_date')->label('Due Date') }}
			{{-- Former::text('discount')->data_bind("value: discount, valueUpdate: 'afterkeydown'") --}}
		</div>
	</div>

	<p>&nbsp;</p>

	{{ Former::hidden('items')->data_bind("value: ko.toJSON(items)") }}	

	<table class="table invoice-table" style="margin-bottom: 0px !important">
	    <thead>
	        <tr>
	        	<th class="hide-border"></th>
	        	<th>Item</th>
	        	<th>Description</th>
	        	<th>Unit&nbsp;Cost</th>
	        	<th>Quantity</th>
	        	<th>Line&nbsp;Total</th>
	        	<th class="hide-border"></th>
	        </tr>
	    </thead>
	    <tbody data-bind="sortable: { data: items, afterMove: onDragged }">
	    	<tr data-bind="event: { mouseover: showActions, mouseout: hideActions }" class="sortable-row">
	        	<td style="width:20px;" class="hide-border">
	        		<!-- <i data-bind="click: $parent.addItem, visible: actionsVisible" class="fa fa-plus-circle" style="cursor:pointer" title="Add item"></i>&nbsp; -->
	        		<i data-bind="visible: actionsVisible" class="fa fa-sort"></i>
	        	</td>
	            <td style="width:120px">	            	
	            	{{ Former::text('product_key')->useDatalist(Product::getProductKeys($products), 'key')->onkeyup('onChange()')
	            		->raw()->data_bind("value: product_key, valueUpdate: 'afterkeydown'")->addClass('datalist') }}
	            </td>
	            <td style="width:300px">
	            	<textarea onkeyup="checkWordWrap(event)" data-bind="value: notes, valueUpdate: 'afterkeydown'" rows="1" cols="60" style="resize: none;" class="form-control" onchange="refreshPDF()"></textarea>
	            </td>
	            <td style="width:100px">
	            	<input onkeyup="onChange()" data-bind="value: cost, valueUpdate: 'afterkeydown'" style="text-align: right" class="form-control" onchange="refreshPDF()"//>
	            </td>
	            <td style="width:80px">
	            	<input onkeyup="onChange()" data-bind="value: qty, valueUpdate: 'afterkeydown'" style="text-align: right" class="form-control" onchange="refreshPDF()"//>
	            </td>
	            <!--
	            <td style="width:100px">
	            	<input data-bind="value: tax, valueUpdate: 'afterkeydown'"/>
	            </td>
	        	-->
	            <td style="width:100px;background-color: #FFFFFF;text-align: right;padding-top:9px !important">
	            	<span data-bind="text: total"></span>
	            </td>
	        	<td style="width:20px; cursor:pointer" class="hide-border">
	        		&nbsp;<i data-bind="click: $parent.removeItem, visible: actionsVisible() &amp;&amp; $parent.items().length > 1" class="fa fa-minus-circle" title="Remove item"/>
	        	</td>
	        </tr>
		</tbody>
		<tfoot>	        
	        <tr>
	        	<td class="hide-border"></td>
	        	<td colspan="2"/>
				<td colspan="2">Subtotal</td>
				<td style="text-align: right"><span data-bind="text: subtotal"/></td>
	        </tr>
	        <tr>
	        	<td class="hide-border"></td>
	        	<td colspan="2" class="hide-border"/>
				<td colspan="2">Paid to Date</td>
				<td style="text-align: right"></td>
	        </tr>	        
	        <tr data-bind="visible: discount() > 0">
	        	<td class="hide-border"></td>
	        	<td colspan="2" class="hide-border"/>
				<td colspan="2">Discount</td>
				<td style="text-align: right"><span data-bind="text: discounted"/></td>
	        </tr>
	        <tr>
	        	<td class="hide-border"></td>
	        	<td colspan="2" class="hide-border"/>
				<td colspan="2"><b>Invoice Total</b></td>
				<td style="text-align: right"><span data-bind="text: total"/></td>
	        </tr>
	    </tfoot>
	</table>

	<p>&nbsp;</p>
	<div class="form-actions">

		@if ($invoice)		
			<div style="display:none">{{ Former::text('action') }}</div>
			{{ DropdownButton::normal('Download PDF',
				  Navigation::links(
				    array(
				    	array('Download PDF', "javascript:onDownloadClick()"),
				     	array(Navigation::DIVIDER),
				     	array('Archive Invoice', "javascript:onArchiveClick()"),
				     	array('Delete Invoice', "javascript:onDeleteClick()"),
				    )
				  )
				, array('id'=>'actionDropDown','style'=>'text-align:left'))->split(); }}				
		@else
			{{ Button::normal('Download PDF', array('onclick' => 'onDownloadClick()')) }}		
		@endif

		{{ Button::primary_submit('Save Invoice') }}		
		{{ Button::primary('Send Email', array('onclick' => 'onEmailClick()')) }}		
	</div>
	<p>&nbsp;</p>
	
	<!-- <textarea rows="20" cols="120" id="pdfText" onkeyup="runCode()"></textarea> -->
	<!-- <iframe frameborder="1" width="100%" height="600" style="display:block;margin: 0 auto"></iframe>	-->
	<iframe frameborder="1" width="100%" height="500"></iframe>	


	<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
	  <div class="modal-dialog">
	    <div class="modal-content">
	      <div class="modal-header">
	        <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
	        <h4 class="modal-title" id="myModalLabel">New Client</h4>
	      </div>
	      <div class="modal-body" style="min-height:80px">
	      	<div class="form-group">
	      		<label for="name" class="control-label col-lg-2 col-sm-4">Name<sup>*</sup></label>
	      		<div class="col-lg-10 col-sm-8">
	      			<input class="form-control" id="client_name" type="text" name="client_name" onkeypress="nameKeyPress(event)">
	      			<span class="help-block" id="nameHelp" style="display: none">Please provide a value</span><span>&nbsp;</span>
	      		</div>	      		
	      	</div>
	      	<div class="form-group">
	      		<label for="email" class="control-label col-lg-2 col-sm-4">Email<sup>*</sup></label>
	      		<div class="col-lg-10 col-sm-8">
	      			<input class="form-control" id="client_email" type="text" name="client_email" onkeypress="nameKeyPress(event)">
	      			<span class="help-block" id="emailHelp" style="display: none">Please provide a value</span><span>&nbsp;</span>
	      		</div>	      		
	      	</div>
	      </div>
	      <div class="modal-footer">
	      	<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
	        <button type="button" class="btn btn-primary" onclick="newClient()">Save</button>	      	
	      </div>
	    </div>
	  </div>
	</div>

	{{ Former::close() }}

	<script type="text/javascript">

	/*
	function textarea_height(TextArea, MaxHeight) {
	    textarea = document.getElementById(TextArea);
	    textareaRows = textarea.value.split("\n");
	    if(textareaRows[0] != "undefined" && textareaRows.length < MaxHeight) counter = textareaRows.length;
	    else if(textareaRows.length >= MaxHeight) counter = MaxHeight;
	    else counter = 1;
	    textarea.rows = counter; 
	}
	*/
	

	$(function() {

		$('#invoice_date').datepicker({
			autoclose: true,
			todayHighlight: true
		}).on('changeDate', function(e) {
			refreshPDF();
		});

		$('#due_date').datepicker({
			autoclose: true,
			todayHighlight: true
		});

		var $input = $('select#client');
		$input.combobox();
		$('.combobox-container input.form-control').attr('name', 'client_combobox').on('change', function(e) {			
			refreshPDF();
		}).mouseleave(function() {
			$(this).css('text-decoration','none');
		}).on('change keyup mouseenter', function(e) {
			if ($(this).closest('.combobox-container').hasClass('combobox-selected')) {
				$(this).css('text-decoration','underline');
				$(this).css('cursor','pointer');	
			} else {
				$(this).css('text-decoration','none');
				$(this).css('cursor','text');	
			}			
		}).on('focusout mouseleave', function(e) {
			$(this).css('text-decoration','none');
			$(this).css('cursor','text');	
		}).on('click', function() {
			var clientId = $('.combobox-container input[name=client]').val();
			if ($(this).closest('.combobox-container').hasClass('combobox-selected')) {				
				if (parseInt(clientId) > 0) {
					window.open('{{ URL::to('clients') }}' + '/' + clientId, '_blank');
				} else {
					$('#myModal').modal('show');
				}
			};
		});
		

		@if ($client)
			$('input#invoice_number').focus();
		@else
			$('[name="client_combobox"]').focus();
		@endif
		
		/*
		$('#myModal').on('hidden.bs.modal', function () {
			$('#popup_client_name').val('');
		})
		*/

		$('#myModal').on('shown.bs.modal', function () {
			$('#client_name').focus();
		})

		$('#invoice_number').change(refreshPDF);

		$('#actionDropDown > button:first').click(function() {
			onDownloadClick();
		});


		applyComboboxListeners();
		refreshPDF();		
	});

	function applyComboboxListeners() {
		var value;
		$('.datalist').on('focus', function() {
			value = $(this).val();
		}).on('blur', function() {
			if (value != $(this).val()) refreshPDF();
		}).on('input', function() {			
			var key = $(this).val();
			for (var i=0; i<products.length; i++) {
				var product = products[i];
				if (product.product_key == key) {
					var model = ko.dataFor(this);
					model.notes(product.notes);
					model.cost(product.cost);
					model.qty(product.qty);
					break;
				}
			}
		});
	}

	function runCode() {
		var text = $('#pdfText').val();
		eval(text);
	}

	function createInvoiceModel() {
		var invoice = {
			invoice_number: $('#invoice_number').val(),
			invoice_date: $('#invoice_date').val(),
			account: {
				name: "{{ $account->name }}",
				address1: "{{ $account->address1 }}",
				address2: "{{ $account->address2 }}",
				city: "{{ $account->city }}",
				state: "{{ $account->state }}",
				postal_code: "{{ $account->postal_code }}",
				country: {
					name: "{{ $account->country ? $account->country->name : '' }}"
				}
			},
			client: {
				name: $('[name="client_combobox"]').val()
			},
			@if (file_exists($account->getLogoPath()))
				image: "{{ HTML::image_data($account->getLogoPath()) }}",			
				imageWidth: {{ $account->getLogoWidth() }},
				imageHeight: {{ $account->getLogoHeight() }},
			@endif
			invoice_items: []
		};

		for(var i=0; i<model.items().length; i++) {
			var item = model.items()[i];
			invoice.invoice_items.push({
				product_key: item.product_key(),
				notes: item.notes(),
				cost: item.cost(),
				qty: item.qty()
			});			
		}

		return invoice;
	}

	function refreshPDF() {
		var invoice = createInvoiceModel();
		var doc = generatePDF(invoice);
		var string = doc.output('datauristring');
		$('iframe').attr('src', string);
	}	

	function onDownloadClick() {
		var invoice = createInvoiceModel();
		var doc = generatePDF(invoice);
		doc.save('Invoice-' + $('#number').val() + '.pdf');
	}

	function onEmailClick() {
		if (confirm('Are you sure you want to email this invoice?')) {
			$('#action').val('email');
			$('.main_form').submit();
		}
	}

	function onArchiveClick() {
		$('#action').val('archive');
		$('.main_form').submit();
	}

	function onDeleteClick() {
		if (confirm('Are you sure you want to delete this invoice?')) {
			$('#action').val('delete');
			$('.main_form').submit();
		}		
	}

	function newClient() {
		var name = $('#client_name').val();
		var email = $('#client_email').val();
		if (!name || !email) {
			if (!name) $('#nameHelp').css( "display", "block" );
			if (!email) $('#emailHelp').css( "display", "block" );
		} else {
			$('.combobox-container input[name=client]').val('-1');
			$('.combobox-container input.form-control').val(name);
			$('.combobox-container').addClass('combobox-selected');

			$('#nameHelp').css( "display", "none" );
			$('#emailHelp').css( "display", "none" );
			//$('#client_name').val('');
			$('#myModal').modal('hide');
			$('input#invoice_number').focus();

			refreshPDF();
		}
	}		

	function nameKeyPress(event) {		
		if (event.keyCode === 13){
			event.preventDefault();		     	
            newClient();
            return false;
        }
	}

	function InvoiceModel() {
		var self = this;
		self.discount = ko.observable();
		self.items = ko.observableArray();

		@if (isset($items) && $items)
			@foreach ($items as $item)
				var item = new ItemModel();
				item.product_key("{{ $item->product_key }}");
				item.notes('{{ str_replace("\n", "\\n", $item->notes) }}');
				item.cost("{{ isset($item->cost) ? $item->cost : '' }}");
				item.qty("{{ isset($item->qty) ? $item->qty : '' }}");
				self.items.push(item);								
			@endforeach
		@elseif ($invoice)
			self.discount({{ $invoice->discount }});
			@if (count($invoice->invoice_items) > 0)
				@foreach ($invoice->invoice_items as $item)
					var item = new ItemModel();
					item.product_key("{{ $item->product_key }}");
					item.notes('{{ str_replace("\n", "\\n", $item->notes) }}');
					item.cost("{{ $item->cost }}");
					item.qty("{{ $item->qty }}");				
					self.items.push(item);				
				@endforeach
			@endif
		@endif

		self.items.push(new ItemModel());
		
		self.removeItem = function(item) {
			self.items.remove(item);
			refreshPDF();
		}

		self.addItem = function() {
			self.items.push(new ItemModel());	
			applyComboboxListeners();
		}

		this.rawSubtotal = ko.computed(function() {
		    var total = 0;
		    for(var p = 0; p < self.items().length; ++p)
		    {
		        total += self.items()[p].rawTotal();
		    }
		    return total;
		});

		this.subtotal = ko.computed(function() {
		    var total = self.rawSubtotal();
		    return total > 0 ? formatMoney(total) : '';
		});


		this.discounted = ko.computed(function() {
			var total = self.rawSubtotal() * (self.discount()/100);
			return formatMoney(total);
		});

		this.total = ko.computed(function() {
		    var total = self.rawSubtotal();

		    var discount = parseInt(self.discount());
		    if (discount > 0) {
		    	total = total * ((100 - discount)/100);
		    }

		    return total > 0 ? formatMoney(total) : '';
    	});

    	self.onDragged = function(item) {
    		refreshPDF();
    	}
	}

	function ItemModel() {
		var self = this;
		this.product_key = ko.observable('');
		this.notes = ko.observable('');
		this.cost = ko.observable();
		this.qty = ko.observable();
		this.tax = ko.observable();
		this.actionsVisible = ko.observable(false);

		this.rawTotal = ko.computed(function() {
			var cost = parseFloat(self.cost());
			var qty = parseInt(self.qty());
			var tax = parseFloat(self.tax());
        	var value = cost * qty;
        	if (self.tax() > 0) {
        		//value = value * ((100 - this.tax())/100);
        	}
        	return value ? value : '';
    	});

		this.total = ko.computed(function() {
			var total = self.rawTotal();
			return total ? formatMoney(total) : '';
    	});

    	this.hideActions = function() {
			this.actionsVisible(false);
    	}

    	this.showActions = function() {
			this.actionsVisible(true);
    	}

    	this.isEmpty = function() {
    		return !self.product_key() && !self.notes() && !self.cost() && !self.qty() && !self.tax();
    	}
	}

	function checkWordWrap(event)
	{
		var doc = new jsPDF('p', 'pt');
		doc.setFont('Helvetica','');
		doc.setFontSize(10);

		var $textarea = $(event.target || event.srcElement);
	    var lines = $textarea.val().split("\n");
	    for (var i = 0; i < lines.length; i++) {
	    	var numLines = doc.splitTextToSize(lines[i], 200).length;
	        if (numLines <= 1) continue;
	        var j = 0; space = lines[i].length;
	        while (j++ < lines[i].length) {
	            if (lines[i].charAt(j) === " ") space = j;
	        }
	        lines[i + 1] = lines[i].substring(space + 1) + (lines[i + 1] || "");
	        lines[i] = lines[i].substring(0, space);
	    }
	    
	    var val = lines.slice(0, 6).join("\n");
	    if (val != $textarea.val())
	    {
			var model = ko.dataFor($textarea[0]);
			model.notes(val);
			refreshPDF();
	    }
	    $textarea.height(val.split('\n').length * 22);
	    onChange();
	}

	function onChange()
	{
		var hasEmpty = false;
		for(var i=0; i<model.items().length; i++) {
			var item = model.items()[i];
			if (item.isEmpty()) {
				hasEmpty = true;
			}
		}
		if (!hasEmpty) {
			model.addItem();
		}
	}

	var products = {{ $products }};

	window.model = new InvoiceModel();
	ko.applyBindings(model);


	</script>


@stop