<script>
(function ($) 
{
	function init(plot) // this is the "body" of the plugin
	{
		var canvas = null;
		var target = null;
		var maxRadius = null;
		var centerLeft = null;
		var centerTop = null;
		var total = 0;
		var redraw = true;
		var redrawAttempts = 10;
		var shrink = 0.95;
		var legendWidth = 0;
		var processed = false;
		var raw = false;
		
		// interactive variables	
		var highlights = [];	
	
		// add hook to determine if pie plugin in enabled, and then perform necessary operations
		plot.hooks.processOptions.push(checkPieEnabled);
		plot.hooks.bindEvents.push(bindEvents);	

		// check to see if the pie plugin is enabled
		function checkPieEnabled(plot, options)
		{
			if (options.series.pie.show)
			{
				//disable grid
				options.grid.show = false;
				
				// set labels.show
				if (options.series.pie.label.show=='auto')
					if (options.legend.show)
						options.series.pie.label.show = false;
					else
						options.series.pie.label.show = true;
				
				// set radius
				if (options.series.pie.radius=='auto')
					if (options.series.pie.label.show)
						options.series.pie.radius = 3/4;
					else
						options.series.pie.radius = 1;
						
				// ensure sane tilt
				if (options.series.pie.tilt>1)
					options.series.pie.tilt=1;
				if (options.series.pie.tilt<0)
					options.series.pie.tilt=0;
			
				// add processData hook to do transformations on the data
				plot.hooks.processDatapoints.push(processDatapoints);
				plot.hooks.drawOverlay.push(drawOverlay);	
				
				// add draw hook
				plot.hooks.draw.push(draw);
			}
		}
	
		// bind hoverable events
		function bindEvents(plot, eventHolder) 		
		{		
			var options = plot.getOptions();
			
			if (options.series.pie.show && options.grid.hoverable)
				eventHolder.unbind('mousemove').mousemove(onMouseMove);
				
			if (options.series.pie.show && options.grid.clickable)
				eventHolder.unbind('click').click(onClick);
		}	
		

		// debugging function that prints out an object
		function alertObject(obj)
		{
			var msg = '';
			function traverse(obj, depth)
			{
				if (!depth)
					depth = 0;
				for (var i = 0; i < obj.length; ++i)
				{
					for (var j=0; j<depth; j++)
						msg += '\t';
				
					if( typeof obj[i] == "object")
					{	// its an object
						msg += ''+i+':\n';
						traverse(obj[i], depth+1);
					}
					else
					{	// its a value
						msg += ''+i+': '+obj[i]+'\n';
					}
				}
			}
			traverse(obj);
			alert(msg);
		}
		
		function calcTotal(data)
		{
			for (var i = 0; i < data.length; ++i)
			{
				var item = parseFloat(data[i].data[0][1]);
				if (item)
					total += item;
			}
		}	
		
		function processDatapoints(plot, series, data, datapoints) 
		{	
			if (!processed)
			{
				processed = true;
			
				canvas = plot.getCanvas();
				target = $(canvas).parent();
				options = plot.getOptions();
			
				plot.setData(combine(plot.getData()));
			}
		}
		
		function setupPie()
		{
			legendWidth = target.children().filter('.legend').children().width();
		
			// calculate maximum radius and center point
			maxRadius =  Math.min(canvas.width,(canvas.height/options.series.pie.tilt))/2;
			centerTop = (canvas.height/2)+options.series.pie.offset.top;
			centerLeft = (canvas.width/2);
			
			if (options.series.pie.offset.left=='auto')
				if (options.legend.position.match('w'))
					centerLeft += legendWidth/2;
				else
					centerLeft -= legendWidth/2;
			else
				centerLeft += options.series.pie.offset.left;
					
			if (centerLeft<maxRadius)
				centerLeft = maxRadius;
			else if (centerLeft>canvas.width-maxRadius)
				centerLeft = canvas.width-maxRadius;
		}
		
		function fixData(data)
		{
			for (var i = 0; i < data.length; ++i)
			{
				if (typeof(data[i].data)=='number')
					data[i].data = [[1,data[i].data]];
				else if (typeof(data[i].data)=='undefined' || typeof(data[i].data[0])=='undefined')
				{
					if (typeof(data[i].data)!='undefined' && typeof(data[i].data.label)!='undefined')
						data[i].label = data[i].data.label; // fix weirdness coming from flot
					data[i].data = [[1,0]];
					
				}
			}
			return data;
		}
		
		function combine(data)
		{
			data = fixData(data);
			calcTotal(data);
			var combined = 0;
			var numCombined = 0;
			var color = options.series.pie.combine.color;
			
			var newdata = [];
			for (var i = 0; i < data.length; ++i)
			{
				// make sure its a number
				data[i].data[0][1] = parseFloat(data[i].data[0][1]);
				if (!data[i].data[0][1])
					data[i].data[0][1] = 0;
					
				if (data[i].data[0][1]/total<=options.series.pie.combine.threshold)
				{
					combined += data[i].data[0][1];
					numCombined++;
					if (!color)
						color = data[i].color;
				}				
				else
				{
					newdata.push({
						data: [[1,data[i].data[0][1]]], 
						color: data[i].color, 
						label: data[i].label,
						angle: (data[i].data[0][1]*(Math.PI*2))/total,
						percent: (data[i].data[0][1]/total*100)
					});
				}
			}
			if (numCombined>0)
				newdata.push({
					data: [[1,combined]], 
					color: color, 
					label: options.series.pie.combine.label,
					angle: (combined*(Math.PI*2))/total,
					percent: (combined/total*100)
				});
			return newdata;
		}		
		
		function draw(plot, newCtx)
		{
			if (!target) return; // if no series were passed
			ctx = newCtx;
		
			setupPie();
			var slices = plot.getData();
		
			var attempts = 0;
			while (redraw && attempts<redrawAttempts)
			{
				redraw = false;
				if (attempts>0)
					maxRadius *= shrink;
				attempts += 1;
				clear();
				if (options.series.pie.tilt<=0.8)
					drawShadow();
				drawPie();
			}
			if (attempts >= redrawAttempts) {
				clear();
				target.prepend('<div class="error">Could not draw pie with labels contained inside canvas</div>');
			}
			
			if ( plot.setSeries && plot.insertLegend )
			{
				plot.setSeries(slices);
				plot.insertLegend();
			}
			
			// we're actually done at this point, just defining internal functions at this point
			
			function clear()
			{
				ctx.clearRect(0,0,canvas.width,canvas.height);
				target.children().filter('.pieLabel, .pieLabelBackground').remove();
			}
			
			function drawShadow()
			{
				var shadowLeft = 5;
				var shadowTop = 15;
				var edge = 10;
				var alpha = 0.02;
			
				// set radius
				if (options.series.pie.radius>1)
					var radius = options.series.pie.radius;
				else
					var radius = maxRadius * options.series.pie.radius;
					
				if (radius>=(canvas.width/2)-shadowLeft || radius*options.series.pie.tilt>=(canvas.height/2)-shadowTop || radius<=edge)
					return;	// shadow would be outside canvas, so don't draw it
			
				ctx.save();
				ctx.translate(shadowLeft,shadowTop);
				ctx.globalAlpha = alpha;
				ctx.fillStyle = '#000';

				// center and rotate to starting position
				ctx.translate(centerLeft,centerTop);
				ctx.scale(1, options.series.pie.tilt);
				
				//radius -= edge;
				for (var i=1; i<=edge; i++)
				{
					ctx.beginPath();
					ctx.arc(0,0,radius,0,Math.PI*2,false);
					ctx.fill();
					radius -= i;
				}	
				
				ctx.restore();
			}
			
			function drawPie()
			{
				startAngle = Math.PI*options.series.pie.startAngle;
				
				// set radius
				if (options.series.pie.radius>1)
					var radius = options.series.pie.radius;
				else
					var radius = maxRadius * options.series.pie.radius;
				
				// center and rotate to starting position
				ctx.save();
				ctx.translate(centerLeft,centerTop);
				ctx.scale(1, options.series.pie.tilt);
				//ctx.rotate(startAngle); // start at top; -- This doesn't work properly in Opera
				
				// draw slices
				ctx.save();
				var currentAngle = startAngle;
				for (var i = 0; i < slices.length; ++i)
				{
					slices[i].startAngle = currentAngle;
					drawSlice(slices[i].angle, slices[i].color, true);
				}
				ctx.restore();
				
				// draw slice outlines
				ctx.save();
				ctx.lineWidth = options.series.pie.stroke.width;
				currentAngle = startAngle;
				for (var i = 0; i < slices.length; ++i)
					drawSlice(slices[i].angle, options.series.pie.stroke.color, false);
				ctx.restore();
					
				// draw donut hole
				drawDonutHole(ctx);
				
				// draw labels
				if (options.series.pie.label.show)
					drawLabels();
				
				// restore to original state
				ctx.restore();
				
				function drawSlice(angle, color, fill)
				{	
					if (angle<=0)
						return;
				
					if (fill)
						ctx.fillStyle = color;
					else
					{
						ctx.strokeStyle = color;
						ctx.lineJoin = 'round';
					}
						
					ctx.beginPath();
					if (Math.abs(angle - Math.PI*2) > 0.000000001)
						ctx.moveTo(0,0); // Center of the pie
					else if ($.browser.msie)
						angle -= 0.0001;
					//ctx.arc(0,0,radius,0,angle,false); // This doesn't work properly in Opera
					ctx.arc(0,0,radius,currentAngle,currentAngle+angle,false);
					ctx.closePath();
					//ctx.rotate(angle); // This doesn't work properly in Opera
					currentAngle += angle;
					
					if (fill)
						ctx.fill();
					else
						ctx.stroke();
				}
				
				function drawLabels()
				{
					var currentAngle = startAngle;
					
					// set radius
					if (options.series.pie.label.radius>1)
						var radius = options.series.pie.label.radius;
					else
						var radius = maxRadius * options.series.pie.label.radius;
					
					for (var i = 0; i < slices.length; ++i)
					{
						if (slices[i].percent >= options.series.pie.label.threshold*100)
							drawLabel(slices[i], currentAngle, i);
						currentAngle += slices[i].angle;
					}
					
					function drawLabel(slice, startAngle, index)
					{
						if (slice.data[0][1]==0)
							return;
							
						// format label text
						var lf = options.legend.labelFormatter, text, plf = options.series.pie.label.formatter;
						if (lf)
							text = lf(slice.label, slice);
						else
							text = slice.label;
						if (plf)
							text = plf(text, slice);
							
						var halfAngle = ((startAngle+slice.angle) + startAngle)/2;
						var x = centerLeft + Math.round(Math.cos(halfAngle) * radius);
						var y = centerTop + Math.round(Math.sin(halfAngle) * radius) * options.series.pie.tilt;
						
						var html = '<span class="pieLabel" id="pieLabel'+index+'" style="position:absolute;top:' + y + 'px;left:' + x + 'px;">' + text + "</span>";
						target.append(html);
						var label = target.children('#pieLabel'+index);
						var labelTop = (y - label.height()/2);
						var labelLeft = (x - label.width()/2);
						label.css('top', labelTop);
						label.css('left', labelLeft);
						
						// check to make sure that the label is not outside the canvas
						if (0-labelTop>0 || 0-labelLeft>0 || canvas.height-(labelTop+label.height())<0 || canvas.width-(labelLeft+label.width())<0)
							redraw = true;
						
						if (options.series.pie.label.background.opacity != 0) {
							// put in the transparent background separately to avoid blended labels and label boxes
							var c = options.series.pie.label.background.color;
							if (c == null) {
								c = slice.color;
							}
							var pos = 'top:'+labelTop+'px;left:'+labelLeft+'px;';
							$('<div class="pieLabelBackground" style="position:absolute;width:' + label.width() + 'px;height:' + label.height() + 'px;' + pos +'background-color:' + c + ';"> </div>').insertBefore(label).css('opacity', options.series.pie.label.background.opacity);
						}
					} // end individual label function
				} // end drawLabels function
			} // end drawPie function
		} // end draw function
		
		// Placed here because it needs to be accessed from multiple locations 
		function drawDonutHole(layer)
		{
			// draw donut hole
			if(options.series.pie.innerRadius > 0)
			{
				// subtract the center
				layer.save();
				innerRadius = options.series.pie.innerRadius > 1 ? options.series.pie.innerRadius : maxRadius * options.series.pie.innerRadius;
				layer.globalCompositeOperation = 'destination-out'; // this does not work with excanvas, but it will fall back to using the stroke color
				layer.beginPath();
				layer.fillStyle = options.series.pie.stroke.color;
				layer.arc(0,0,innerRadius,0,Math.PI*2,false);
				layer.fill();
				layer.closePath();
				layer.restore();
				
				// add inner stroke
				layer.save();
				layer.beginPath();
				layer.strokeStyle = options.series.pie.stroke.color;
				layer.arc(0,0,innerRadius,0,Math.PI*2,false);
				layer.stroke();
				layer.closePath();
				layer.restore();
				// TODO: add extra shadow inside hole (with a mask) if the pie is tilted.
			}
		}
		
		//-- Additional Interactive related functions --
		
		function isPointInPoly(poly, pt)
		{
			for(var c = false, i = -1, l = poly.length, j = l - 1; ++i < l; j = i)
				((poly[i][1] <= pt[1] && pt[1] < poly[j][1]) || (poly[j][1] <= pt[1] && pt[1]< poly[i][1]))
				&& (pt[0] < (poly[j][0] - poly[i][0]) * (pt[1] - poly[i][1]) / (poly[j][1] - poly[i][1]) + poly[i][0])
				&& (c = !c);
			return c;
		}
		
		function findNearbySlice(mouseX, mouseY)
		{
			var slices = plot.getData(),
				options = plot.getOptions(),
				radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
			
			for (var i = 0; i < slices.length; ++i) 
			{
				var s = slices[i];	
				
				if(s.pie.show)
				{
					ctx.save();
					ctx.beginPath();
					ctx.moveTo(0,0); // Center of the pie
					//ctx.scale(1, options.series.pie.tilt);	// this actually seems to break everything when here.
					ctx.arc(0,0,radius,s.startAngle,s.startAngle+s.angle,false);
					ctx.closePath();
					x = mouseX-centerLeft;
					y = mouseY-centerTop;
					if(ctx.isPointInPath)
					{
						if (ctx.isPointInPath(mouseX-centerLeft, mouseY-centerTop))
						{
							//alert('found slice!');
							ctx.restore();
							return {datapoint: [s.percent, s.data], dataIndex: 0, series: s, seriesIndex: i};
						}
					}
					else
					{
						// excanvas for IE doesn;t support isPointInPath, this is a workaround. 
						p1X = (radius * Math.cos(s.startAngle));
						p1Y = (radius * Math.sin(s.startAngle));
						p2X = (radius * Math.cos(s.startAngle+(s.angle/4)));
						p2Y = (radius * Math.sin(s.startAngle+(s.angle/4)));
						p3X = (radius * Math.cos(s.startAngle+(s.angle/2)));
						p3Y = (radius * Math.sin(s.startAngle+(s.angle/2)));
						p4X = (radius * Math.cos(s.startAngle+(s.angle/1.5)));
						p4Y = (radius * Math.sin(s.startAngle+(s.angle/1.5)));
						p5X = (radius * Math.cos(s.startAngle+s.angle));
						p5Y = (radius * Math.sin(s.startAngle+s.angle));
						arrPoly = [[0,0],[p1X,p1Y],[p2X,p2Y],[p3X,p3Y],[p4X,p4Y],[p5X,p5Y]];
						arrPoint = [x,y];
						// TODO: perhaps do some mathmatical trickery here with the Y-coordinate to compensate for pie tilt?
						if(isPointInPoly(arrPoly, arrPoint))
						{
							ctx.restore();
							return {datapoint: [s.percent, s.data], dataIndex: 0, series: s, seriesIndex: i};
						}			
					}
					ctx.restore();
				}
			}
			
			return null;
		}

		function onMouseMove(e) 
		{
			triggerClickHoverEvent('plothover', e);
		}
		
        function onClick(e) 
		{
			triggerClickHoverEvent('plotclick', e);
        }

		// trigger click or hover event (they send the same parameters so we share their code)
		function triggerClickHoverEvent(eventname, e) 
		{
			alert('test');
			var offset = plot.offset(),
				canvasX = parseInt(e.pageX - offset.left),
				canvasY =  parseInt(e.pageY - offset.top),
				item = findNearbySlice(canvasX, canvasY);
			
			if (options.grid.autoHighlight) 
			{
				// clear auto-highlights
				for (var i = 0; i < highlights.length; ++i) 
				{
					var h = highlights[i];
					if (h.auto == eventname && !(item && h.series == item.series))
						unhighlight(h.series);
				}
			}
			
			// highlight the slice
			if (item) 
			    highlight(item.series, eventname);
				
			// trigger any hover bind events
			var pos = { pageX: e.pageX, pageY: e.pageY };
			target.trigger(eventname, [ pos, item ]);	
		}

		function highlight(s, auto) 
		{
			if (typeof s == "number")
				s = series[s];

			var i = indexOfHighlight(s);
			if (i == -1) 
			{
				highlights.push({ series: s, auto: auto });
				plot.triggerRedrawOverlay();
			}
			else if (!auto)
				highlights[i].auto = false;
		}

		function unhighlight(s) 
		{
			if (s == null) 
			{
				highlights = [];
				plot.triggerRedrawOverlay();
			}
			
			if (typeof s == "number")
				s = series[s];

			var i = indexOfHighlight(s);
			if (i != -1) 
			{
				highlights.splice(i, 1);
				plot.triggerRedrawOverlay();
			}
		}

		function indexOfHighlight(s) 
		{
			for (var i = 0; i < highlights.length; ++i) 
			{
				var h = highlights[i];
				if (h.series == s)
					return i;
			}
			return -1;
		}

		function drawOverlay(plot, octx) 
		{
			//alert(options.series.pie.radius);
			var options = plot.getOptions();
			//alert(options.series.pie.radius);
			
			var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;

			octx.save();
			octx.translate(centerLeft, centerTop);
			octx.scale(1, options.series.pie.tilt);
			
			for (i = 0; i < highlights.length; ++i) 
				drawHighlight(highlights[i].series);
			
			drawDonutHole(octx);

			octx.restore();

			function drawHighlight(series) 
			{
				if (series.angle < 0) return;
				
				//octx.fillStyle = parseColor(options.series.pie.highlight.color).scale(null, null, null, options.series.pie.highlight.opacity).toString();
				octx.fillStyle = "rgba(255, 255, 255, "+options.series.pie.highlight.opacity+")"; // this is temporary until we have access to parseColor
				
				octx.beginPath();
				if (Math.abs(series.angle - Math.PI*2) > 0.000000001)
					octx.moveTo(0,0); // Center of the pie
				octx.arc(0,0,radius,series.startAngle,series.startAngle+series.angle,false);
				octx.closePath();
				octx.fill();
			}
			
		}	
		
	} // end init (plugin body)
	
	// define pie specific options and their default values
	var options = {
		series: {
			pie: {
				show: false,
				radius: 'auto',	// actual radius of the visible pie (based on full calculated radius if <=1, or hard pixel value)
				innerRadius:0, /* for donut */
				startAngle: 3/2,
				tilt: 1,
				offset: {
					top: 0,
					left: 'auto'
				},
				stroke: {
					color: '#FFF',
					width: 1
				},
				label: {
					show: 'auto',
					formatter: function(label, slice){
						return '<div style="font-size:x-small;text-align:center;padding:2px;color:'+slice.color+';">'+label+'<br/>'+Math.round(slice.percent)+'%</div>';
					},	// formatter function
					radius: 1,	// radius at which to place the labels (based on full calculated radius if <=1, or hard pixel value)
					background: {
						color: null,
						opacity: 0
					},
					threshold: 0	// percentage at which to hide the label (i.e. the slice is too narrow)
				},
				combine: {
					threshold: .02,	// percentage at which to combine little slices into one larger slice
					color: null,	// color to give the new slice (auto-generated if null)
					label: 'Other'	// label to give the new slice
				},
				highlight: {
					//color: '#FFF',		// will add this functionality once parseColor is available
					opacity: 0.5
				}
			}
		}
	};

	$.plot.plugins.push({
		init: init,
		options: options,
		name: "pie",
		version: "1.0"
	});
})(jQuery);
$(document).ready(function(){
    
//    if($("#expenses").length > 0){
 		$.ajax({
  			type: "POST",
  			dataType: "json",
			url: "<?php echo base_url()?>accountReceivables/openInvoice_AR",
  			success: function(content){
				var data = [];
				for (var i=0; i<content.message.length; i++){
					data[i] = { label: content.message[i].label, data: content.message[i].data };
				}
       				 $.plot($("#openInvoices"), data, {
           				series: {
                			pie: { show: true }
           				},
            			legend: { show: false }
					});
			}
		});        // Here your ajax action after delete confirmed
 		$.ajax({
  			type: "POST",
  			dataType: "json",
			url: "<?php echo base_url()?>GeneralLedger/accountbalance",
  			success: function(content){
				var data = [];
				for (var i=0; i<content.message.length; i++){
					data[i] = { label: '<a href="<?php echo base_url()?>glreports/accountDetailsfc/' + content.message[i].accountID + '">' 
						+ content.message[i].label+'</a>', data: content.message[i].data };
				}
       				 $.plot($("#assets"), data, {
           				series: {
                			pie: { show: true }
           				},
            			legend: { show: false }
					});
			}
		});        // Here your ajax action after delete confirmed
    if($("#chart-2").length > 0){
        

        var d1 = [];
        for (var i = 0; i <= 10; i += 1)
            d1.push([i, parseInt(Math.random() * 30)]);

        var d2 = [];
        for (var i = 0; i <= 10; i += 1)
            d2.push([i, parseInt(Math.random() * 30)]);

        var stack = null, bars = false, lines = true, steps = false;


        $.plot($("#chart-2"), [ { data: d1, label: "data 1" }, { data: d2, label: "data 2" }], {
            series: {
                stack: stack,
                lines: { show: lines, fill: true, steps: steps },
                bars: { show: bars, barWidth: 0.6 }
            }
        });
        
        
    }
});
</script>

            <div id="content">                        
                <div class="wrap">
                    <div class="head">
                        <div class="info">
		<h1><?php echo element('compName', $this->session->userdata('logged_in')) ?> [ 
			<?php echo element('compNo', $this->session->userdata('logged_in')) ?> ]</h1>
		<ul class="breadcrumb">
       	<li><a href='<?php echo base_url()."home" ?>'><?php echo $this->lang->line('dashboard') ?></a> <span class="divider">-</span></li>
        <li class="active"><?php echo $this->lang->line('module') ?></li>
        </ul>
                        </div>
                        
                        <div class="search">
		<form action="<?php echo base_url() ?>admin/search" method="post">
			<input name="search_text" type="text" placeholder="search..."/>                                
            <button type="submit"><span class="i-magnifier"></span></button>
		</form>
                        </div>                        
                    </div><!-- head --> 
<div class="content">
	<div class="wrap">                    
		<div class="row-fluid">
          <div class="span12">
			<div class="block">
           		<div class="head">                                        
                	<h2><?php echo $this->lang->line('title1') ?></h2>
            	</div>
                                    <div class="content np nb">
                                        <div id="vector_world_map" style="width: 100%; height: 300px"></div>
                                    </div>
                        </div>
		</div>
   		<div class="row-fluid">
                        <div class="row-fluid">
                             <div class="span6">
                                <div class="block">
                                    <div class="head">                                        
                                        <h2><?php echo $this->lang->line('openInvoices') ?></h2>
                                    </div>
                                    <div class="content">
                                        <div id="openInvoices" style="height: 300px;"></div>
                                    </div>
                                </div>
                            </div>
                       
                            <div class="span6">
                                <div class="block">
                                    <div class="head">                                        
                                        <h2><?php echo $this->lang->line('accountbalance') ?></h2>
                                    </div>
                                    <div class="content">
                                        <div id="assets" style="height: 300px;"></div>
                                    </div>
                                </div>
                            </div>
                       </div>
		</div>
                        <div class="row-fluid">

                            <div class="span12">
                                <div class="block">
                                    <div class="head">                                    
                                        <h2>Stacked charts</h2>
                                    </div>
                                    <div class="content">
                                        <div id="chart-2" style="height: 300px; margin-top: 10px;"></div>
                                    </div>
                                </div>
                            </div>

                        </div>             
	</div><!-- wrap -->
</div><!-- content -->    
