/* ------------------------------------------------------------------------------
 *
 *  # Dashboard configuration
 *
 *  Demo dashboard configuration. Contains charts and plugin inits
 *
 *  Version: 1.0
 *  Latest update: Aug 1, 2015
 *
 * ---------------------------------------------------------------------------- */

$(function() {    


    // Switchery toggles
    // ------------------------------

    var switches = Array.prototype.slice.call(document.querySelectorAll('.switch'));
    switches.forEach(function(html) {
        var switchery = new Switchery(html, {color: '#4CAF50'});
    });




    // Daterange picker
    // ------------------------------

    $('.daterange-ranges').daterangepicker(
        {
            startDate: moment().subtract(29, 'days'),
            endDate: moment(),
            minDate: '01/01/2012',
            maxDate: '12/31/2016',
            dateLimit: { days: 60 },
            ranges: {
                'Today': [moment(), moment()],
                'Yesterday': [moment().subtract(1, 'days'), moment().subtract(1, 'days')],
                'Last 7 Days': [moment().subtract(6, 'days'), moment()],
                'Last 30 Days': [moment().subtract(29, 'days'), moment()],
                'This Month': [moment().startOf('month'), moment().endOf('month')],
                'Last Month': [moment().subtract(1, 'month').startOf('month'), moment().subtract(1, 'month').endOf('month')]
            },
            opens: 'left',
            applyClass: 'btn-small bg-slate-600 btn-block',
            cancelClass: 'btn-small btn-default btn-block',
            format: 'MM/DD/YYYY'
        },
        function(start, end) {
            $('.daterange-ranges span').html(start.format('MMMM D') + ' - ' + end.format('MMMM D'));
        }
    );

    $('.daterange-ranges span').html(moment().subtract(29, 'days').format('MMMM D') + ' - ' + moment().format('MMMM D'));




    // Traffic sources stream chart
    // ------------------------------

    trafficSources('#traffic-sources', 330); // initialize chart

    // Chart setup
    function trafficSources(element, height) {


        // Basic setup
        // ------------------------------

        // Define main variables
        var d3Container = d3.select(element),
            margin = {top: 5, right: 50, bottom: 40, left: 50},
            width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right,
            height = height - margin.top - margin.bottom,
            tooltipOffset = 30;

        // Tooltip
        var tooltip = d3Container
            .append("div")
            .attr("class", "d3-tip e")
            .style("display", "none")

        // Format date
        var format = d3.time.format("%m/%d/%y %H:%M");
        var formatDate = d3.time.format("%H:%M");

        // Colors
        var colorrange = ['#03A9F4', '#29B6F6', '#4FC3F7', '#81D4FA', '#B3E5FC', '#E1F5FE'];



        // Construct scales
        // ------------------------------

        // Horizontal
        var x = d3.time.scale().range([0, width]);

        // Vertical
        var y = d3.scale.linear().range([height, 0]);

        // Colors
        var z = d3.scale.ordinal().range(colorrange);



        // Create axes
        // ------------------------------

        // Horizontal
        var xAxis = d3.svg.axis()
            .scale(x)
            .orient("bottom")
            .ticks(d3.time.hours, 4)
            .innerTickSize(4)
            .tickPadding(8)
            .tickFormat(d3.time.format("%H:%M")); // Display hours and minutes in 24h format

        // Left vertical
        var yAxis = d3.svg.axis()
            .scale(y)
            .ticks(6)
            .innerTickSize(4)
            .outerTickSize(0)
            .tickPadding(8)
            .tickFormat(function (d) { return (d/1000) + "k"; });

        // Right vertical
        var yAxis2 = yAxis;

        // Dash lines
        var gridAxis = d3.svg.axis()
            .scale(y)
            .orient("left")
            .ticks(6)
            .tickPadding(8)
            .tickFormat("")
            .tickSize(-width, 0, 0);



        // Create chart
        // ------------------------------

        // Container
        var container = d3Container.append("svg")

        // SVG element
        var svg = container
            .attr('width', width + margin.left + margin.right)
            .attr("height", height + margin.top + margin.bottom)
                .append("g")
                .attr("transform", "translate(" + margin.left + "," + margin.top + ")");



        // Construct chart layout
        // ------------------------------

        // Stack
        var stack = d3.layout.stack()
            .offset("silhouette")
            .values(function(d) { return d.values; })
            .x(function(d) { return d.date; })
            .y(function(d) { return d.value; });

        // Nest
        var nest = d3.nest()
            .key(function(d) { return d.key; });

        // Area
        var area = d3.svg.area()
            .interpolate("cardinal")
            .x(function(d) { return x(d.date); })
            .y0(function(d) { return y(d.y0); })
            .y1(function(d) { return y(d.y0 + d.y); });



        // Load data
        // ------------------------------

        d3.csv("assets/demo_data/dashboard/traffic_sources.csv", function (error, data) {

            // Pull out values
            data.forEach(function (d) {
                d.date = format.parse(d.date);
                d.value = +d.value;
            });

            // Stack and nest layers
            var layers = stack(nest.entries(data));



            // Set input domains
            // ------------------------------

            // Horizontal
            x.domain(d3.extent(data, function(d, i) { return d.date; }));

            // Vertical
            y.domain([0, d3.max(data, function(d) { return d.y0 + d.y; })]);



            // Add grid
            // ------------------------------

            // Horizontal grid. Must be before the group
            svg.append("g")
                .attr("class", "d3-grid-dashed")
                .call(gridAxis);



            //
            // Append chart elements
            //

            // Stream layers
            // ------------------------------

            // Create group
            var group = svg.append('g')
                .attr('class', 'streamgraph-layers-group');

            // And append paths to this group
            var layer = group.selectAll(".streamgraph-layer")
                .data(layers)
                .enter()
                    .append("path")
                    .attr("class", "streamgraph-layer")
                    .attr("d", function(d) { return area(d.values); })                    
                    .style('stroke', '#fff')
                    .style('stroke-width', 0.5)
                    .style("fill", function(d, i) { return z(i); });

            // Add transition
            var layerTransition = layer
                .style('opacity', 0)
                .transition()
                    .duration(750)
                    .delay(function(d, i) { return i * 50; })
                    .style('opacity', 1)



            // Append axes
            // ------------------------------

            //
            // Left vertical
            //

            svg.append("g")
                .attr("class", "d3-axis d3-axis-left d3-axis-solid")
                .call(yAxis.orient("left"));

            // Hide first tick
            d3.select(svg.selectAll('.d3-axis-left .tick text')[0][0])
                .style("visibility", "hidden");


            //
            // Right vertical
            //

            svg.append("g")
                .attr("class", "d3-axis d3-axis-right d3-axis-solid")
                .attr("transform", "translate(" + width + ", 0)")
                .call(yAxis2.orient("right"));

            // Hide first tick
            d3.select(svg.selectAll('.d3-axis-right .tick text')[0][0])
                .style("visibility", "hidden");


            //
            // Horizontal
            //

            var xaxisg = svg.append("g")
                .attr("class", "d3-axis d3-axis-horizontal d3-axis-solid")
                .attr("transform", "translate(0," + height + ")")
                .call(xAxis);

            // Add extra subticks for hidden hours
            xaxisg.selectAll(".d3-axis-subticks")
                .data(x.ticks(d3.time.hours), function(d) { return d; })
                .enter()
                .append("line")
                .attr("class", "d3-axis-subticks")
                .attr("y1", 0)
                .attr("y2", 4)
                .attr("x1", x)
                .attr("x2", x);



            // Add hover line and pointer
            // ------------------------------

            // Append group to the group of paths to prevent appearance outside chart area
            var hoverLineGroup = group.append("g")
                .attr("class", "hover-line");

            // Add line
            var hoverLine = hoverLineGroup
                .append("line")
                .attr("y1", 0)
                .attr("y2", height)
                .style('fill', 'none')
                .style('stroke', '#fff')
                .style('stroke-width', 1)
                .style('pointer-events', 'none')
                .style('shape-rendering', 'crispEdges')
                .style("opacity", 0);

            // Add pointer
            var hoverPointer = hoverLineGroup
                .append("rect")
                .attr("x", 2)
                .attr("y", 2)
                .attr("width", 6)
                .attr("height", 6)
                .style('fill', '#03A9F4')
                .style('stroke', '#fff')
                .style('stroke-width', 1)
                .style('shape-rendering', 'crispEdges')
                .style('pointer-events', 'none')
                .style("opacity", 0);



            // Append events to the layers group
            // ------------------------------

            layerTransition.each("end", function() {
                layer
                    .on("mouseover", function (d, i) {
                        svg.selectAll(".streamgraph-layer")
                            .transition()
                            .duration(250)
                            .style("opacity", function (d, j) {
                                return j != i ? 0.75 : 1; // Mute all except hovered
                            });
                    })

                    .on("mousemove", function (d, i) {
                        mouse = d3.mouse(this);
                        mousex = mouse[0];
                        mousey = mouse[1];
                        datearray = [];
                        var invertedx = x.invert(mousex);
                        invertedx = invertedx.getHours();
                        var selected = (d.values);
                        for (var k = 0; k < selected.length; k++) {
                            datearray[k] = selected[k].date
                            datearray[k] = datearray[k].getHours();
                        }
                        mousedate = datearray.indexOf(invertedx);
                        pro = d.values[mousedate].value;


                        // Display mouse pointer
                        hoverPointer
                            .attr("x", mousex - 3)
                            .attr("y", mousey - 6)
                            .style("opacity", 1);

                        hoverLine
                            .attr("x1", mousex)
                            .attr("x2", mousex)
                            .style("opacity", 1);

                        //
                        // Tooltip
                        //

                        // Tooltip data
                        tooltip.html(
                            "<ul class='list-unstyled mb-5'>" +
                                "<li>" + "<div class='text-size-base mt-5 mb-5'><i class='icon-circle-left2 position-left'></i>" + d.key + "</div>" + "</li>" +
                                "<li>" + "Visits: &nbsp;" + "<span class='text-semibold pull-right'>" + pro + "</span>" + "</li>" +
                                "<li>" + "Time: &nbsp; " + "<span class='text-semibold pull-right'>" + formatDate(d.values[mousedate].date) + "</span>" + "</li>" + 
                            "</ul>"
                        )
                        .style("display", "block");

                        // Tooltip arrow
                        tooltip.append('div').attr('class', 'd3-tip-arrow');
                    })

                    .on("mouseout", function (d, i) {

                        // Revert full opacity to all paths
                        svg.selectAll(".streamgraph-layer")
                            .transition()
                            .duration(250)
                            .style("opacity", 1);

                        // Hide cursor pointer
                        hoverPointer.style("opacity", 0);

                        // Hide tooltip
                        tooltip.style("display", "none");

                        hoverLine.style("opacity", 0);
                    });
                });



            // Append events to the chart container
            // ------------------------------

            d3Container
                .on("mousemove", function (d, i) {
                    mouse = d3.mouse(this);
                    mousex = mouse[0];
                    mousey = mouse[1];

                    // Display hover line
                        //.style("opacity", 1);


                    // Move tooltip vertically
                    tooltip.style("top", (mousey - ($('.d3-tip').outerHeight() / 2)) - 2 + "px") // Half tooltip height - half arrow width

                    // Move tooltip horizontally
                    if(mousex >= ($(element).outerWidth() - $('.d3-tip').outerWidth() - margin.right - (tooltipOffset * 2))) {
                        tooltip
                            .style("left", (mousex - $('.d3-tip').outerWidth() - tooltipOffset) + "px") // Change tooltip direction from right to left to keep it inside graph area
                            .attr("class", "d3-tip w");
                    }
                    else {
                        tooltip
                            .style("left", (mousex + tooltipOffset) + "px" )
                            .attr("class", "d3-tip e");
                    }
                });
        });



        // Resize chart
        // ------------------------------

        // Call function on window resize
        $(window).on('resize', resizeStream);

        // Call function on sidebar width change
        $(document).on('click', '.sidebar-control', resizeStream);

        // Resize function
        // 
        // Since D3 doesn't support SVG resize by default,
        // we need to manually specify parts of the graph that need to 
        // be updated on window resize
        function resizeStream() {

            // Layout
            // -------------------------

            // Define width
            width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right;

            // Main svg width
            container.attr("width", width + margin.left + margin.right);

            // Width of appended group
            svg.attr("width", width + margin.left + margin.right);

            // Horizontal range
            x.range([0, width]);


            // Chart elements
            // -------------------------

            // Horizontal axis
            svg.selectAll('.d3-axis-horizontal').call(xAxis);

            // Horizontal axis subticks
            svg.selectAll('.d3-axis-subticks').attr("x1", x).attr("x2", x);

            // Grid lines width
            svg.selectAll(".d3-grid-dashed").call(gridAxis.tickSize(-width, 0, 0))

            // Right vertical axis
            svg.selectAll(".d3-axis-right").attr("transform", "translate(" + width + ", 0)");

            // Area paths
            svg.selectAll('.streamgraph-layer').attr("d", function(d) { return area(d.values); });
        }
    }




    // App sales lines chart
    // ------------------------------

    appSalesLines('#app_sales', 255); // initialize chart

    // Chart setup
    function appSalesLines(element, height) {


        // Basic setup
        // ------------------------------

        // Define main variables
        var d3Container = d3.select(element),
            margin = {top: 5, right: 30, bottom: 30, left: 50},
            width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right,
            height = height - margin.top - margin.bottom;

        // Tooltip
        var tooltip = d3.tip()
            .attr('class', 'd3-tip')
            .html(function (d) {
                return "<ul class='list-unstyled mb-5'>" +
                    "<li>" + "<div class='text-size-base mt-5 mb-5'><i class='icon-circle-left2 position-left'></i>" + d.name + " app" + "</div>" + "</li>" +
                    "<li>" + "Sales: &nbsp;" + "<span class='text-semibold pull-right'>" + d.value + "</span>" + "</li>" +
                    "<li>" + "Revenue: &nbsp; " + "<span class='text-semibold pull-right'>" + "$" + (d.value * 25).toFixed(2) + "</span>" + "</li>" + 
                "</ul>";
            });

        // Format date
        var parseDate = d3.time.format("%Y/%m/%d").parse,
            formatDate = d3.time.format("%b %d, '%y");

        // Line colors
        var scale = ["#4CAF50", "#FF5722", "#5C6BC0"],
            color = d3.scale.ordinal().range(scale);



        // Create chart
        // ------------------------------

        // Container
        var container = d3Container.append('svg');

        // SVG element
        var svg = container
            .attr('width', width + margin.left + margin.right)
            .attr('height', height + margin.top + margin.bottom)
            .append("g")
                .attr("transform", "translate(" + margin.left + "," + margin.top + ")")
                .call(tooltip);



        // Add date range switcher
        // ------------------------------

        // Menu
        var menu = $("#select_date").multiselect({
            buttonClass: 'btn btn-link text-semibold',
            enableHTML: true,
            dropRight: true,
            onChange: function() { change(), $.uniform.update(); },
            buttonText: function (options, element) {
                var selected = '';
                options.each(function() {
                    selected += $(this).html() + ', ';
                });
                return '<span class="status-mark border-warning position-left"></span>' + selected.substr(0, selected.length -2);
            }
        });

        // Radios
        $(".multiselect-container input").uniform({ radioClass: 'choice' });



        // Load data
        // ------------------------------

        d3.csv("assets/demo_data/dashboard/app_sales.csv", function(error, data) {
            formatted = data;
            redraw();
        });



        // Construct layout
        // ------------------------------

        // Add events
        var altKey;
        d3.select(window)
            .on("keydown", function() { altKey = d3.event.altKey; })
            .on("keyup", function() { altKey = false; });
    
        // Set terms of transition on date change   
        function change() {
          d3.transition()
              .duration(altKey ? 7500 : 500)
              .each(redraw);
        }



        // Main chart drawing function
        // ------------------------------

        function redraw() { 

            // Construct chart layout
            // ------------------------------

            // Create data nests
            var nested = d3.nest()
                .key(function(d) { return d.type; })
                .map(formatted)
            
            // Get value from menu selection
            // the option values correspond
            //to the [type] value we used to nest the data  
            var series = menu.val();
            
            // Only retrieve data from the selected series using nest
            var data = nested[series];
            
            // For object constancy we will need to set "keys", one for each type of data (column name) exclude all others.
            color.domain(d3.keys(data[0]).filter(function(key) { return (key !== "date" && key !== "type"); }));

            // Setting up color map
            var linedata = color.domain().map(function(name) {
                return {
                            name: name,
                            values: data.map(function(d) {
                                return {name: name, date: parseDate(d.date), value: parseFloat(d[name], 10)};
                            })
                        };
                    });

            // Draw the line
            var line = d3.svg.line()
                .x(function(d) { return x(d.date); })
                .y(function(d) { return y(d.value); })
                .interpolate('cardinal');



            // Construct scales
            // ------------------------------

            // Horizontal
            var x = d3.time.scale()
                .domain([
                    d3.min(linedata, function(c) { return d3.min(c.values, function(v) { return v.date; }); }),
                    d3.max(linedata, function(c) { return d3.max(c.values, function(v) { return v.date; }); })
                ])
                .range([0, width]);

            // Vertical
            var y = d3.scale.linear()
                .domain([
                    d3.min(linedata, function(c) { return d3.min(c.values, function(v) { return v.value; }); }),
                    d3.max(linedata, function(c) { return d3.max(c.values, function(v) { return v.value; }); })
                ])
                .range([height, 0]);



            // Create axes
            // ------------------------------

            // Horizontal
            var xAxis = d3.svg.axis()
                .scale(x)
                .orient("bottom")
                .tickPadding(8)
                .ticks(d3.time.days)
                .innerTickSize(4)
                .tickFormat(d3.time.format("%a")); // Display hours and minutes in 24h format

            // Vertical
            var yAxis = d3.svg.axis()
                .scale(y)
                .orient("left")
                .ticks(6)
                .tickSize(0 -width)
                .tickPadding(8);
            


            //
            // Append chart elements
            //

            // Append axes
            // ------------------------------

            // Horizontal
            svg.append("g")
                .attr("class", "d3-axis d3-axis-horizontal d3-axis-solid")
                .attr("transform", "translate(0," + height + ")");

            // Vertical
            svg.append("g")
                .attr("class", "d3-axis d3-axis-vertical d3-axis-transparent");



            // Append lines
            // ------------------------------

            // Bind the data
            var lines = svg.selectAll(".lines")
                .data(linedata)
         
            // Append a group tag for each line
            var lineGroup = lines
                .enter()
                .append("g")
                    .attr("class", "lines")
                    .attr('id', function(d){ return d.name + "-line"; });

            // Append the line to the graph
            lineGroup.append("path")
                .attr("class", "d3-line d3-line-medium")
                .style("stroke", function(d) { return color(d.name); })
                .style('opacity', 0)
                .attr("d", function(d) { return line(d.values[0]); })
                .transition()
                    .duration(500)
                    .delay(function(d, i) { return i * 200; })
                    .style('opacity', 1);
          


            // Append circles
            // ------------------------------

            var circles = lines.selectAll("circle")
                .data(function(d) { return d.values; })
                .enter()
                .append("circle")
                    .attr("class", "d3-line-circle d3-line-circle-medium")
                    .attr("cx", function(d,i){return x(d.date)})
                    .attr("cy",function(d,i){return y(d.value)})
                    .attr("r", 3)
                    .style('fill', '#fff')
                    .style("stroke", function(d) { return color(d.name); });

            // Add transition
            circles
                .style('opacity', 0)
                .transition()
                    .duration(500)
                    .delay(500)
                    .style('opacity', 1);



            // Append tooltip
            // ------------------------------

            // Add tooltip on circle hover
            circles
                .on("mouseover", function (d) {
                    tooltip.offset([-15, 0]).show(d);

                    // Animate circle radius
                    d3.select(this).transition().duration(250).attr('r', 4);
                })
                .on("mouseout", function (d) {
                    tooltip.hide(d);

                    // Animate circle radius
                    d3.select(this).transition().duration(250).attr('r', 3);
                });

            // Change tooltip direction of first point
            // to always keep it inside chart, useful on mobiles
            lines.each(function (d) { 
                d3.select(d3.select(this).selectAll('circle')[0][0])
                    .on("mouseover", function (d) {
                        tooltip.offset([0, 15]).direction('e').show(d);

                        // Animate circle radius
                        d3.select(this).transition().duration(250).attr('r', 4);
                    })
                    .on("mouseout", function (d) {
                        tooltip.direction('n').hide(d);

                        // Animate circle radius
                        d3.select(this).transition().duration(250).attr('r', 3);
                    });
            })

            // Change tooltip direction of last point
            // to always keep it inside chart, useful on mobiles
            lines.each(function (d) { 
                d3.select(d3.select(this).selectAll('circle')[0][d3.select(this).selectAll('circle').size() - 1])
                    .on("mouseover", function (d) {
                        tooltip.offset([0, -15]).direction('w').show(d);

                        // Animate circle radius
                        d3.select(this).transition().duration(250).attr('r', 4);
                    })
                    .on("mouseout", function (d) {
                        tooltip.direction('n').hide(d);

                        // Animate circle radius
                        d3.select(this).transition().duration(250).attr('r', 3);
                    })
            })



            // Update chart on date change
            // ------------------------------

            // Set variable for updating visualization
            var lineUpdate = d3.transition(lines);
            
            // Update lines
            lineUpdate.select("path")
                .attr("d", function(d, i) { return line(d.values); });

            // Update circles
            lineUpdate.selectAll("circle")
                .attr("cy",function(d,i){return y(d.value)})
                .attr("cx", function(d,i){return x(d.date)});

            // Update vertical axes
            d3.transition(svg)
                .select(".d3-axis-vertical")
                .call(yAxis);   

            // Update horizontal axes
            d3.transition(svg)
                .select(".d3-axis-horizontal")
                .attr("transform", "translate(0," + height + ")")
                .call(xAxis);



            // Resize chart
            // ------------------------------

            // Call function on window resize
            $(window).on('resize', appSalesResize);

            // Call function on sidebar width change
            $(document).on('click', '.sidebar-control', appSalesResize);

            // Resize function
            // 
            // Since D3 doesn't support SVG resize by default,
            // we need to manually specify parts of the graph that need to 
            // be updated on window resize
            function appSalesResize() {

                // Layout
                // -------------------------

                // Define width
                width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right;

                // Main svg width
                container.attr("width", width + margin.left + margin.right);

                // Width of appended group
                svg.attr("width", width + margin.left + margin.right);

                // Horizontal range
                x.range([0, width]);

                // Vertical range
                y.range([height, 0]);


                // Chart elements
                // -------------------------

                // Horizontal axis
                svg.select('.d3-axis-horizontal').call(xAxis);

                // Vertical axis
                svg.select('.d3-axis-vertical').call(yAxis.tickSize(0-width));

                // Lines
                svg.selectAll('.d3-line').attr("d", function(d, i) { return line(d.values); });

                // Circles
                svg.selectAll('.d3-line-circle').attr("cx", function(d,i){return x(d.date)})
            }
        }
    }




    // App sales heatmap chart
    // ------------------------------

    salesHeatmap(); // initialize chart

    // Chart setup
    function salesHeatmap() {


        // Load data
        // ------------------------------

        d3.csv("assets/demo_data/dashboard/app_sales_heatmap.csv", function(error, data) {


            // Bind data
            // ------------------------------

            // Nest data
            var nested_data = d3.nest().key(function(d) { return d.app; }),
                nest = nested_data.entries(data);

            // Format date
            var format = d3.time.format("%Y/%m/%d %H:%M"),
                formatTime = d3.time.format("%H:%M");

            // Pull out values
            data.forEach(function(d, i) { 
                d.date = format.parse(d.date),
                d.value = +d.value
            });



            // Layout setup
            // ------------------------------

            // Define main variables
            var d3Container = d3.select('#sales-heatmap');
                margin = { top: 20, right: 0, bottom: 30, left: 0 },
                width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right,
                gridSize = width / new Date(data[data.length - 1].date).getHours(), // dynamically set grid size
                rowGap = 40, // vertical gap between rows
                height = (rowGap + gridSize) * (d3.max(nest, function(d,i) {return i+1})) - margin.top,
                buckets = 5, // number of colors in range
                colors = ["#DCEDC8","#C5E1A5","#9CCC65","#7CB342","#558B2F"];



            // Construct scales
            // ------------------------------

            // Horizontal
            var x = d3.time.scale().range([0, width]);

            // Vertical
            var y = d3.scale.linear().range([height, 0]);

            // Colors
            var colorScale = d3.scale.quantile()
                .domain([0, buckets - 1, d3.max(data, function (d) { return d.value; })])
                .range(colors);



            // Set input domains
            // ------------------------------

            // Horizontal
            x.domain([new Date(data[0].date), d3.time.hour.offset(new Date(data[data.length - 1].date), 1)]);

            // Vertical
            y.domain([0, d3.max(data, function(d) { return d.app; })]);



            // Create chart
            // ------------------------------

            // Container
            var container = d3Container.append('svg');

            // SVG element
            var svg = container
                .attr('width', width + margin.left + margin.right)
                .attr("height", height + margin.bottom)
                .append("g")
                    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");



            //
            // Append chart elements
            //

            // App groups
            // ------------------------------

            // Add groups for each app
            var hourGroup = svg.selectAll('.hour-group')
                .data(nest)
                .enter()
                .append('g')
                    .attr('class', 'hour-group')
                    .attr("transform", function(d, i) { return "translate(0, " + ((gridSize + rowGap) * i) +")"; });

            // Add app name
            hourGroup
                .append("text")
                    .attr('class', 'app-label')
                    .attr('x', 0)
                    .attr('y', -(margin.top/2))
                    .text(function (d, i) { return d.key; });

            // Sales count text
            hourGroup
                .append("text")
                    .attr('class', 'sales-count')
                    .attr('x', width)
                    .attr('y', -(margin.top/2))
                    .style('text-anchor', 'end')
                    .text(function (d, i) { return d3.sum(d.values, function(d) { return d.value; }) + " sales today" });



            // Add map elements
            // ------------------------------

            // Add map squares
            var heatMap = hourGroup.selectAll(".heatmap-hour")
                .data(function(d) {return d.values})
                .enter()
                .append("rect")
                    .attr("x", function(d,i) { return x(d.date); })
                    .attr("y", 0)
                    .attr("class", "heatmap-hour")
                    .attr("width", gridSize)
                    .attr("height", gridSize)
                    .style("fill", '#fff')
                    .style('stroke', '#fff')
                    .style('cursor', 'pointer')
                    .style('shape-rendering', 'crispEdges');

            // Add loading transition    
            heatMap.transition()
                .duration(250)
                .delay(function(d, i) { return i * 20; })
                .style("fill", function(d) { return colorScale(d.value); })

            // Add user interaction
            hourGroup.each(function(d) {
                heatMap
                    .on("mouseover", function (d, i) {
                        d3.select(this).style('opacity', 0.75);
                        d3.select(this.parentNode).select('.sales-count').text(function(d) { return d.values[i].value + " sales at " + formatTime(d.values[i].date); })
                    })
                    .on("mouseout", function (d, i) {
                        d3.select(this).style('opacity', 1);
                        d3.select(this.parentNode).select('.sales-count').text(function (d, i) { return d3.sum(d.values, function(d) { return d.value; }) + " sales today" })
                    })
            })



            // Add legend
            // ------------------------------

            // Get min and max values
            var minValue, maxValue;
            data.forEach(function(d, i) { 
                maxValue = d3.max(data, function (d) { return d.value; });
                minValue = d3.min(data, function (d) { return d.value; });
            });

            // Place legend inside separate group
            var legendGroup = svg.append('g')
                .attr('class', 'legend-group')
                .attr('width', width)
                .attr("transform", "translate(" + ((width/2) - ((buckets * gridSize))/2) + "," + (height + (margin.bottom - margin.top)) + ")");

            // Then group legend elements
            var legend = legendGroup.selectAll(".heatmap-legend")
                .data([0].concat(colorScale.quantiles()), function(d) { return d; })
                .enter()
                .append("g")
                    .attr("class", "heatmap-legend");

            // Add legend items
            legend.append("rect")
                .attr('class', 'heatmap-legend-item')
                .attr("x", function(d, i) { return gridSize * i; })
                .attr("y", -8)
                .attr("width", gridSize)
                .attr("height", 5)
                .style('stroke', '#fff')
                .style('shape-rendering', 'crispEdges')
                .style("fill", function(d, i) { return colors[i]; });

            // Add min value text label
            legendGroup.append("text")
                .attr("class", "min-legend-value")
                .attr("x", -10)
                .attr("y", -2)
                .style('text-anchor', 'end')
                .style('font-size', 11)
                .style('fill', '#999')
                .text(minValue);

            // Add max value text label
            legendGroup.append("text")
                .attr("class", "max-legend-value")
                .attr("x", (buckets * gridSize) + 10)
                .attr("y", -2)
                .style('font-size', 11)
                .style('fill', '#999')
                .text(maxValue);



            // Resize chart
            // ------------------------------

            // Call function on window resize
            $(window).on('resize', resizeHeatmap);

            // Call function on sidebar width change
            $(document).on('click', '.sidebar-control', resizeHeatmap);

            // Resize function
            // 
            // Since D3 doesn't support SVG resize by default,
            // we need to manually specify parts of the graph that need to 
            // be updated on window resize
            function resizeHeatmap() {

                // Layout
                // -------------------------

                // Width
                width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right,

                // Grid size
                gridSize = width / new Date(data[data.length - 1].date).getHours(),

                // Height
                height = (rowGap + gridSize) * (d3.max(nest, function(d,i) {return i+1})) - margin.top,

                // Main svg width
                container.attr("width", width + margin.left + margin.right).attr("height", height + margin.bottom);

                // Width of appended group
                svg.attr("width", width + margin.left + margin.right).attr("height", height + margin.bottom);

                // Horizontal range
                x.range([0, width]);


                // Chart elements
                // -------------------------

                // Groups for each app
                svg.selectAll('.hour-group')
                    .attr("transform", function(d, i) { return "translate(0, " + ((gridSize + rowGap) * i) +")"; });

                // Map squares
                svg.selectAll(".heatmap-hour")
                    .attr("width", gridSize)
                    .attr("height", gridSize)
                    .attr("x", function(d,i) { return x(d.date); });

                // Legend group
                svg.selectAll('.legend-group')
                    .attr("transform", "translate(" + ((width/2) - ((buckets * gridSize))/2) + "," + (height + margin.bottom - margin.top) + ")");

                // Sales count text
                svg.selectAll('.sales-count')
                    .attr("x", width);

                // Legend item
                svg.selectAll('.heatmap-legend-item')
                    .attr("width", gridSize)
                    .attr("x", function(d, i) { return gridSize * i; });

                // Max value text label
                svg.selectAll('.max-legend-value')
                    .attr("x", (buckets * gridSize) + 10);
            }
        });
    }




    // Monthly app sales area chart
    // ------------------------------

    monthlySalesArea("#monthly-sales-stats", 100, '#4DB6AC'); // initialize chart

    // Chart setup
    function monthlySalesArea(element, height, color) {


        // Basic setup
        // ------------------------------

        // Define main variables
        var d3Container = d3.select(element),
            margin = {top: 20, right: 35, bottom: 40, left: 35},
            width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right,
            height = height - margin.top - margin.bottom;

        // Date and time format
        var parseDate = d3.time.format( '%Y-%m-%d' ).parse,
            bisectDate = d3.bisector(function(d) { return d.date; }).left,
            formatDate = d3.time.format("%b %d");



        // Create SVG
        // ------------------------------

        // Container
        var container = d3Container.append('svg');

        // SVG element
        var svg = container
            .attr('width', width + margin.left + margin.right)
            .attr('height', height + margin.top + margin.bottom)
            .append("g")
                .attr("transform", "translate(" + margin.left + "," + margin.top + ")")



        // Construct chart layout
        // ------------------------------

        // Area
        var area = d3.svg.area()
            .x(function(d) { return x(d.date); })
            .y0(height)
            .y1(function(d) { return y(d.value); })
            .interpolate('monotone')


        // Construct scales
        // ------------------------------

        // Horizontal
        var x = d3.time.scale().range([0, width ]);

        // Vertical
        var y = d3.scale.linear().range([height, 0]);


        // Create axes
        // ------------------------------

        // Horizontal
        var xAxis = d3.svg.axis()
            .scale(x)
            .orient("bottom")
            .ticks(d3.time.days, 6)
            .innerTickSize(4)
            .tickPadding(8)
            .tickFormat(d3.time.format("%b %d"));


        // Load data
        // ------------------------------

        d3.json("assets/demo_data/dashboard/monthly_sales.json", function (error, data) {

            // Show what's wrong if error
            if (error) return console.error(error);

            // Pull out values
            data.forEach(function (d) {
                d.date = parseDate(d.date);
                d.value = +d.value;
            });

            // Get the maximum value in the given array
            var maxY = d3.max(data, function(d) { return d.value; });

            // Reset start data for animation
            var startData = data.map(function(datum) {
                return {
                    date: datum.date,
                    value: 0
                };
            });


            // Set input domains
            // ------------------------------

            // Horizontal
            x.domain(d3.extent(data, function(d, i) { return d.date; }));

            // Vertical
            y.domain([0, d3.max( data, function(d) { return d.value; })]);



            //
            // Append chart elements
            //

            // Append axes
            // -------------------------

            // Horizontal
            var horizontalAxis = svg.append("g")
                .attr("class", "d3-axis d3-axis-horizontal d3-axis-solid")
                .attr("transform", "translate(0," + height + ")")
                .call(xAxis);

            // Add extra subticks for hidden hours
            horizontalAxis.selectAll(".d3-axis-subticks")
                .data(x.ticks(d3.time.days), function(d) { return d; })
                .enter()
                    .append("line")
                    .attr("class", "d3-axis-subticks")
                    .attr("y1", 0)
                    .attr("y2", 4)
                    .attr("x1", x)
                    .attr("x2", x);



            // Append area
            // -------------------------

            // Add area path
            svg.append("path")
                .datum(data)
                .attr("class", "d3-area")
                .attr("d", area)
                .style('fill', color)
                .transition() // begin animation
                    .duration(1000)
                    .attrTween('d', function() {
                        var interpolator = d3.interpolateArray(startData, data);
                        return function (t) {
                            return area(interpolator (t));
                        }
                    });



            // Append crosshair and tooltip
            // -------------------------

            //
            // Line
            //

            // Line group
            var focusLine = svg.append("g")
                .attr("class", "d3-crosshair-line")
                .style("display", "none");

            // Line element
            focusLine.append("line")
                .attr("class", "vertical-crosshair")
                .attr("y1", 0)
                .attr("y2", -maxY)
                .style("stroke", "#e5e5e5")
                .style('shape-rendering', 'crispEdges')


            //
            // Pointer
            //

            // Pointer group
            var focusPointer = svg.append("g")
                .attr("class", "d3-crosshair-pointer")
                .style("display", "none");

            // Pointer element
            focusPointer.append("circle")
                .attr("r", 3)
                .style("fill", "#fff")
                .style('stroke', color)
                .style('stroke-width', 1)


            //
            // Text
            //

            // Text group
            var focusText = svg.append("g")
                .attr("class", "d3-crosshair-text")
                .style("display", "none");

            // Text element
            focusText.append("text")
                .attr("dy", -10)
                .style('font-size', 12);


            //
            // Overlay with events
            //

            svg.append("rect")
                .attr("class", "d3-crosshair-overlay")
                .style('fill', 'none')
                .style('pointer-events', 'all')
                .attr("width", width)
                .attr("height", height)
                    .on("mouseover", function() {
                        focusPointer.style("display", null);        
                        focusLine.style("display", null)
                        focusText.style("display", null);
                    })
                    .on("mouseout", function() {
                        focusPointer.style("display", "none"); 
                        focusLine.style("display", "none");
                        focusText.style("display", "none");
                    })
                    .on("mousemove", mousemove);


            // Display tooltip on mousemove
            function mousemove() {

                // Define main variables
                var mouse = d3.mouse(this),
                    mousex = mouse[0],
                    mousey = mouse[1],
                    x0 = x.invert(mousex),
                    i = bisectDate(data, x0),
                    d0 = data[i - 1],
                    d1 = data[i],
                    d = x0 - d0.date > d1.date - x0 ? d1 : d0;

                // Move line
                focusLine.attr("transform", "translate(" + x(d.date) + "," + height + ")");

                // Move pointer
                focusPointer.attr("transform", "translate(" + x(d.date) + "," + y(d.value) + ")");

                // Reverse tooltip at the end point
                if(mousex >= (d3Container.node().getBoundingClientRect().width - focusText.select('text').node().getBoundingClientRect().width - margin.right - margin.left)) {
                    focusText.select("text").attr('text-anchor', 'end').attr("x", function () { return (x(d.date) - 15) + "px" }).text(formatDate(d.date) + " - " + d.value + " sales");
                }
                else {
                    focusText.select("text").attr('text-anchor', 'start').attr("x", function () { return (x(d.date) + 15) + "px" }).text(formatDate(d.date) + " - " + d.value + " sales");
                }
            }



            // Resize chart
            // ------------------------------

            // Call function on window resize
            $(window).on('resize', monthlySalesAreaResize);

            // Call function on sidebar width change
            $(document).on('click', '.sidebar-control', monthlySalesAreaResize);

            // Resize function
            // 
            // Since D3 doesn't support SVG resize by default,
            // we need to manually specify parts of the graph that need to 
            // be updated on window resize
            function monthlySalesAreaResize() {

                // Layout variables
                width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right;


                // Layout
                // -------------------------

                // Main svg width
                container.attr("width", width + margin.left + margin.right);

                // Width of appended group
                svg.attr("width", width + margin.left + margin.right);


                // Axes
                // -------------------------

                // Horizontal range
                x.range([0, width]);

                // Horizontal axis
                svg.selectAll('.d3-axis-horizontal').call(xAxis);

                // Horizontal axis subticks
                svg.selectAll('.d3-axis-subticks').attr("x1", x).attr("x2", x);


                // Chart elements
                // -------------------------

                // Area path
                svg.selectAll('.d3-area').datum( data ).attr("d", area);

                // Crosshair
                svg.selectAll('.d3-crosshair-overlay').attr("width", width);
            }
        });
    }




    // Messages area chart
    // ------------------------------

    messagesArea("#messages-stats", 40, '#5C6BC0'); // initialize chart

    // Chart setup
    function messagesArea(element, height, color) {


        // Basic setup
        // ------------------------------

        // Define main variables
        var d3Container = d3.select(element),
            margin = {top: 0, right: 0, bottom: 0, left: 0},
            width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right,
            height = height - margin.top - margin.bottom;

        // Date and time format
        var parseDate = d3.time.format( '%Y-%m-%d' ).parse;


        // Create SVG
        // ------------------------------

        // Container
        var container = d3Container.append('svg');

        // SVG element
        var svg = container
            .attr('width', width + margin.left + margin.right)
            .attr('height', height + margin.top + margin.bottom)
            .append("g")
                .attr("transform", "translate(" + margin.left + "," + margin.top + ")")


        // Construct chart layout
        // ------------------------------

        // Area
        var area = d3.svg.area()
            .x(function(d) { return x(d.date); })
            .y0(height)
            .y1(function(d) { return y(d.value); })
            .interpolate('monotone')


        // Construct scales
        // ------------------------------

        // Horizontal
        var x = d3.time.scale().range([0, width ]);

        // Vertical
        var y = d3.scale.linear().range([height, 0]);


        // Load data
        // ------------------------------

        d3.json("assets/demo_data/dashboard/monthly_sales.json", function (error, data) {

            // Show what's wrong if error
            if (error) return console.error(error);

            // Pull out values
            data.forEach(function (d) {
                d.date = parseDate(d.date);
                d.value = +d.value;
            });

            // Get the maximum value in the given array
            var maxY = d3.max(data, function(d) { return d.value; });

            // Reset start data for animation
            var startData = data.map(function(datum) {
                return {
                    date: datum.date,
                    value: 0
                };
            });


            // Set input domains
            // ------------------------------

            // Horizontal
            x.domain(d3.extent(data, function(d, i) { return d.date; }));

            // Vertical
            y.domain([0, d3.max( data, function(d) { return d.value; })]);



            //
            // Append chart elements
            //

            // Add area path
            svg.append("path")
                .datum(data)
                .attr("class", "d3-area")
                .style('fill', color)
                .attr("d", area)
                .transition() // begin animation
                    .duration(1000)
                    .attrTween('d', function() {
                        var interpolator = d3.interpolateArray(startData, data);
                        return function (t) {
                            return area(interpolator (t));
                        }
                    });


            // Resize chart
            // ------------------------------

            // Call function on window resize
            $(window).on('resize', messagesAreaResize);

            // Call function on sidebar width change
            $(document).on('click', '.sidebar-control', messagesAreaResize);

            // Resize function
            // 
            // Since D3 doesn't support SVG resize by default,
            // we need to manually specify parts of the graph that need to 
            // be updated on window resize
            function messagesAreaResize() {

                // Layout variables
                width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right;


                // Layout
                // -------------------------

                // Main svg width
                container.attr("width", width + margin.left + margin.right);

                // Width of appended group
                svg.attr("width", width + margin.left + margin.right);

                // Horizontal range
                x.range([0, width]);


                // Chart elements
                // -------------------------

                // Area path
                svg.selectAll('.d3-area').datum( data ).attr("d", area);
            }
        });
    }




    // Sparklines
    // ------------------------------

    // Initialize chart
    sparkline("#new-visitors", "line", 30, 35, "basis", 750, 2000, "#26A69A");
    sparkline("#new-sessions", "line", 30, 35, "basis", 750, 2000, "#FF7043");
    sparkline("#total-online", "line", 30, 35, "basis", 750, 2000, "#5C6BC0");
    sparkline("#server-load", "area", 30, 50, "basis", 750, 2000, "rgba(255,255,255,0.5)");

    // Chart setup
    function sparkline(element, chartType, qty, height, interpolation, duration, interval, color) {


        // Basic setup
        // ------------------------------

        // Define main variables
        var d3Container = d3.select(element),
            margin = {top: 0, right: 0, bottom: 0, left: 0},
            width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right,
            height = height - margin.top - margin.bottom;


        // Generate random data (for demo only)
        var data = [];
        for (var i=0; i < qty; i++) {
            data.push(Math.floor(Math.random() * qty) + 5)
        }



        // Construct scales
        // ------------------------------

        // Horizontal
        var x = d3.scale.linear().range([0, width]);

        // Vertical
        var y = d3.scale.linear().range([height - 5, 5]);



        // Set input domains
        // ------------------------------

        // Horizontal
        x.domain([1, qty - 3])

        // Vertical
        y.domain([0, qty])
            


        // Construct chart layout
        // ------------------------------

        // Line
        var line = d3.svg.line()
            .interpolate(interpolation)
            .x(function(d, i) { return x(i); })
            .y(function(d, i) { return y(d); });

        // Area
        var area = d3.svg.area()
            .interpolate(interpolation)
            .x(function(d,i) { 
                return x(i); 
            })
            .y0(height)
            .y1(function(d) { 
                return y(d); 
            });



        // Create SVG
        // ------------------------------

        // Container
        var container = d3Container.append('svg');

        // SVG element
        var svg = container
            .attr('width', width + margin.left + margin.right)
            .attr('height', height + margin.top + margin.bottom)
            .append("g")
                .attr("transform", "translate(" + margin.left + "," + margin.top + ")");



        // Add mask for animation
        // ------------------------------

        // Add clip path
        var clip = svg.append("defs")
            .append("clipPath")
            .attr('id', function(d, i) { return "load-clip-" + element.substring(1) })

        // Add clip shape
        var clips = clip.append("rect")
            .attr('class', 'load-clip')
            .attr("width", 0)
            .attr("height", height);

        // Animate mask
        clips
            .transition()
                .duration(1000)
                .ease('linear')
                .attr("width", width);



        //
        // Append chart elements
        //

        // Main path
        var path = svg.append("g")
            .attr("clip-path", function(d, i) { return "url(#load-clip-" + element.substring(1) + ")"})
            .append("path")
                .datum(data)
                .attr("transform", "translate(" + x(0) + ",0)");

        // Add path based on chart type
        if(chartType == "area") {
            path.attr("d", area).attr('class', 'd3-area').style("fill", color); // area
        }
        else {
            path.attr("d", line).attr("class", "d3-line d3-line-medium").style('stroke', color); // line
        }

        // Animate path
        path
            .style('opacity', 0)
            .transition()
                .duration(750)
                .style('opacity', 1);



        // Set update interval. For demo only
        // ------------------------------

        setInterval(function() {

            // push a new data point onto the back
            data.push(Math.floor(Math.random() * qty) + 5);

            // pop the old data point off the front
            data.shift();

            update();

        }, interval);



        // Update random data. For demo only
        // ------------------------------

        function update() {

            // Redraw the path and slide it to the left
            path
                .attr("transform", null)
                .transition()
                    .duration(duration)
                    .ease("linear")
                    .attr("transform", "translate(" + x(0) + ",0)");

            // Update path type
            if(chartType == "area") {
                path.attr("d", area).attr('class', 'd3-area').style("fill", color)
            }
            else {
                path.attr("d", line).attr("class", "d3-line d3-line-medium").style('stroke', color);
            }
        }



        // Resize chart
        // ------------------------------

        // Call function on window resize
        $(window).on('resize', resizeSparklines);

        // Call function on sidebar width change
        $(document).on('click', '.sidebar-control', resizeSparklines);

        // Resize function
        // 
        // Since D3 doesn't support SVG resize by default,
        // we need to manually specify parts of the graph that need to 
        // be updated on window resize
        function resizeSparklines() {

            // Layout variables
            width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right;


            // Layout
            // -------------------------

            // Main svg width
            container.attr("width", width + margin.left + margin.right);

            // Width of appended group
            svg.attr("width", width + margin.left + margin.right);

            // Horizontal range
            x.range([0, width]);


            // Chart elements
            // -------------------------

            // Clip mask
            clips.attr("width", width);

            // Line
            svg.select(".d3-line").attr("d", line);

            // Area
            svg.select(".d3-area").attr("d", area);
        }
    }




    // Daily revenue line chart
    // ------------------------------

    dailyRevenue('#today-revenue', 50); // initialize chart

    // Chart setup
    function dailyRevenue(element, height) {


        // Basic setup
        // ------------------------------

        // Add data set
        var dataset = [
            {
                "date": "04/13/14",
                "alpha": "60"
            }, {
                "date": "04/14/14",
                "alpha": "35"
            }, {
                "date": "04/15/14",
                "alpha": "65"
            }, {
                "date": "04/16/14",
                "alpha": "50"
            }, {
                "date": "04/17/14",
                "alpha": "65"
            }, {
                "date": "04/18/14",
                "alpha": "20"
            }, {
                "date": "04/19/14",
                "alpha": "60"
            }
        ];

        // Main variables
        var d3Container = d3.select(element),
            margin = {top: 0, right: 0, bottom: 0, left: 0},
            width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right,
            height = height - margin.top - margin.bottom,
            padding = 20;

        // Format date
        var parseDate = d3.time.format("%m/%d/%y").parse,
            formatDate = d3.time.format("%a, %B %e");



        // Add tooltip
        // ------------------------------

        var tooltip = d3.tip()
            .attr('class', 'd3-tip')
            .html(function (d) {
                return "<ul class='list-unstyled mb-5'>" +
                    "<li>" + "<div class='text-size-base mt-5 mb-5'><i class='icon-check2 position-left'></i>" + formatDate(d.date) + "</div>" + "</li>" +
                    "<li>" + "Sales: &nbsp;" + "<span class='text-semibold pull-right'>" + d.alpha + "</span>" + "</li>" +
                    "<li>" + "Revenue: &nbsp; " + "<span class='text-semibold pull-right'>" + "$" + (d.alpha * 25).toFixed(2) + "</span>" + "</li>" + 
                "</ul>";
            });



        // Create chart
        // ------------------------------

        // Add svg element
        var container = d3Container.append('svg');

        // Add SVG group
        var svg = container
                .attr('width', width + margin.left + margin.right)
                .attr('height', height + margin.top + margin.bottom)
                .append("g")
                    .attr("transform", "translate(" + margin.left + "," + margin.top + ")")
                    .call(tooltip);



        // Load data
        // ------------------------------

        dataset.forEach(function (d) {
            d.date = parseDate(d.date);
            d.alpha = +d.alpha;
        });



        // Construct scales
        // ------------------------------

        // Horizontal
        var x = d3.time.scale()
            .range([padding, width - padding]);

        // Vertical
        var y = d3.scale.linear()
            .range([height, 5]);



        // Set input domains
        // ------------------------------

        // Horizontal
        x.domain(d3.extent(dataset, function (d) {
            return d.date;
        }));

        // Vertical
        y.domain([0, d3.max(dataset, function (d) {
            return Math.max(d.alpha);
        })]);



        // Construct chart layout
        // ------------------------------

        // Line
        var line = d3.svg.line()
            .x(function(d) {
                return x(d.date);
            })
            .y(function(d) {
                return y(d.alpha)
            });



        //
        // Append chart elements
        //

        // Add mask for animation
        // ------------------------------

        // Add clip path
        var clip = svg.append("defs")
            .append("clipPath")
            .attr("id", "clip-line-small");

        // Add clip shape
        var clipRect = clip.append("rect")
            .attr('class', 'clip')
            .attr("width", 0)
            .attr("height", height);

        // Animate mask
        clipRect
              .transition()
                  .duration(1000)
                  .ease('linear')
                  .attr("width", width);



        // Line
        // ------------------------------

        // Path
        var path = svg.append('path')
            .attr({
                'd': line(dataset),
                "clip-path": "url(#clip-line-small)",
                'class': 'd3-line d3-line-medium'
            })
            .style('stroke', '#fff');

        // Animate path
        svg.select('.line-tickets')
            .transition()
                .duration(1000)
                .ease('linear');



        // Add vertical guide lines
        // ------------------------------

        // Bind data
        var guide = svg.append('g')
            .selectAll('.d3-line-guides-group')
            .data(dataset);

        // Append lines
        guide
            .enter()
            .append('line')
                .attr('class', 'd3-line-guides')
                .attr('x1', function (d, i) {
                    return x(d.date);
                })
                .attr('y1', function (d, i) {
                    return height;
                })
                .attr('x2', function (d, i) {
                    return x(d.date);
                })
                .attr('y2', function (d, i) {
                    return height;
                })
                .style('stroke', 'rgba(255,255,255,0.3)')
                .style('stroke-dasharray', '4,2')
                .style('shape-rendering', 'crispEdges');

        // Animate guide lines
        guide
            .transition()
                .duration(1000)
                .delay(function(d, i) { return i * 150; })
                .attr('y2', function (d, i) {
                    return y(d.alpha);
                });



        // Alpha app points
        // ------------------------------

        // Add points
        var points = svg.insert('g')
            .selectAll('.d3-line-circle')
            .data(dataset)
            .enter()
            .append('circle')
                .attr('class', 'd3-line-circle d3-line-circle-medium')
                .attr("cx", line.x())
                .attr("cy", line.y())
                .attr("r", 3)
                .style('stroke', '#fff')
                .style('fill', '#29B6F6');



        // Animate points on page load
        points
            .style('opacity', 0)
            .transition()
                .duration(250)
                .ease('linear')
                .delay(1000)
                .style('opacity', 1);


        // Add user interaction
        points
            .on("mouseover", function (d) {
                tooltip.offset([-10, 0]).show(d);

                // Animate circle radius
                d3.select(this).transition().duration(250).attr('r', 4);
            })

            // Hide tooltip
            .on("mouseout", function (d) {
                tooltip.hide(d);

                // Animate circle radius
                d3.select(this).transition().duration(250).attr('r', 3);
            });

        // Change tooltip direction of first point
        d3.select(points[0][0])
            .on("mouseover", function (d) {
                tooltip.offset([0, 10]).direction('e').show(d);

                // Animate circle radius
                d3.select(this).transition().duration(250).attr('r', 4);
            })
            .on("mouseout", function (d) {
                tooltip.direction('n').hide(d);

                // Animate circle radius
                d3.select(this).transition().duration(250).attr('r', 3);
            });

        // Change tooltip direction of last point
        d3.select(points[0][points.size() - 1])
            .on("mouseover", function (d) {
                tooltip.offset([0, -10]).direction('w').show(d);

                // Animate circle radius
                d3.select(this).transition().duration(250).attr('r', 4);
            })
            .on("mouseout", function (d) {
                tooltip.direction('n').hide(d);

                // Animate circle radius
                d3.select(this).transition().duration(250).attr('r', 3);
            })



        // Resize chart
        // ------------------------------

        // Call function on window resize
        $(window).on('resize', revenueResize);

        // Call function on sidebar width change
        $(document).on('click', '.sidebar-control', revenueResize);

        // Resize function
        // 
        // Since D3 doesn't support SVG resize by default,
        // we need to manually specify parts of the graph that need to 
        // be updated on window resize
        function revenueResize() {

            // Layout variables
            width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right;


            // Layout
            // -------------------------

            // Main svg width
            container.attr("width", width + margin.left + margin.right);

            // Width of appended group
            svg.attr("width", width + margin.left + margin.right);

            // Horizontal range
            x.range([padding, width - padding]);


            // Chart elements
            // -------------------------

            // Mask
            clipRect.attr("width", width);

            // Line path
            svg.selectAll('.d3-line').attr("d", line(dataset));

            // Circles
            svg.selectAll('.d3-line-circle').attr("cx", line.x());

            // Guide lines
            svg.selectAll('.d3-line-guides')
                .attr('x1', function (d, i) {
                    return x(d.date);
                })
                .attr('x2', function (d, i) {
                    return x(d.date);
                });
        }
    }




    // Marketing campaigns progress pie chart
    // ------------------------------

    // Initialize chart
    progressMeter("#today-progress", 20, 20, '#7986CB');
    progressMeter("#yesterday-progress", 20, 20, '#7986CB');

    // Chart setup
    function progressMeter(element, width, height, color) {


        // Basic setup
        // ------------------------------

        // Main variables
        var d3Container = d3.select(element),
            border = 2,
            radius = Math.min(width / 2, height / 2) - border,
            twoPi = 2 * Math.PI,
            progress = $(element).data('progress'),
            total = 100;



        // Construct chart layout
        // ------------------------------

        // Arc
        var arc = d3.svg.arc()
            .startAngle(0)
            .innerRadius(0)
            .outerRadius(radius)
            .endAngle(function(d) {
              return (d.value / d.size) * 2 * Math.PI; 
            })



        // Create chart
        // ------------------------------

        // Add svg element
        var container = d3Container.append("svg");

        // Add SVG group
        var svg = container
            .attr("width", width)
            .attr("height", height)
            .append("g")
                .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");



        //
        // Append chart elements
        //

        // Progress group
        var meter = svg.append("g")
            .attr("class", "progress-meter");

        // Background
        meter.append("path")
            .attr("d", arc.endAngle(twoPi))
            .style('fill', '#fff')
            .style('stroke', color)
            .style('stroke-width', 1.5);

        // Foreground
        var foreground = meter.append("path")
            .style('fill', color);

        // Animate foreground path
        foreground
            .transition()
                .ease("cubic-out")
                .duration(2500)
                .attrTween("d", arcTween);


        // Tween arcs
        function arcTween() {
            var i = d3.interpolate(0, progress);
            return function(t) {
                var currentProgress = progress / (100/t);
                var endAngle = arc.endAngle(twoPi * (currentProgress));
                return arc(i(endAngle));
            };
        }
    }




    // Marketing campaigns donut chart
    // ------------------------------

    // Initialize chart
    campaignDonut("#campaigns-donut", 42);

    // Chart setup
    function campaignDonut(element, size) {


        // Basic setup
        // ------------------------------

        // Add data set
        var data = [
            {
                "browser": "Google Adwords",
                "icon": "<i class='icon-google position-left'></i>",
                "value": 1047,
                "color" : "#66BB6A"
            }, {
                "browser": "Social media",
                "icon": "<i class='icon-share4 position-left'></i>",
                "value": 2948,
                "color": "#9575CD"
            }, {
                "browser":"Youtube video",
                "icon": "<i class='icon-youtube position-left'></i>",
                "value": 3909,
                "color": "#FF7043"
            }
        ];

        // Main variables
        var d3Container = d3.select(element),
            distance = 2, // reserve 2px space for mouseover arc moving
            radius = (size/2) - distance,
            sum = d3.sum(data, function(d) { return d.value; })



        // Tooltip
        // ------------------------------

        var tip = d3.tip()
            .attr('class', 'd3-tip')
            .offset([-10, 0])
            .direction('e')
            .html(function (d) {
                return "<ul class='list-unstyled mb-5'>" +
                    "<li>" + "<div class='text-size-base mb-5 mt-5'>" + d.data.icon + d.data.browser + "</div>" + "</li>" +
                    "<li>" + "Visits: &nbsp;" + "<span class='text-semibold pull-right'>" + d.value + "</span>" + "</li>" +
                    "<li>" + "Share: &nbsp;" + "<span class='text-semibold pull-right'>" + (100 / (sum / d.value)).toFixed(2) + "%" + "</span>" + "</li>" +
                "</ul>";
            })



        // Create chart
        // ------------------------------

        // Add svg element
        var container = d3Container.append("svg").call(tip);
        
        // Add SVG group
        var svg = container
            .attr("width", size)
            .attr("height", size)
            .append("g")
                .attr("transform", "translate(" + (size / 2) + "," + (size / 2) + ")");  



        // Construct chart layout
        // ------------------------------

        // Pie
        var pie = d3.layout.pie()
            .sort(null)
            .startAngle(Math.PI)
            .endAngle(3 * Math.PI)
            .value(function (d) { 
                return d.value;
            }); 

        // Arc
        var arc = d3.svg.arc()
            .outerRadius(radius)
            .innerRadius(radius / 2);



        //
        // Append chart elements
        //

        // Group chart elements
        var arcGroup = svg.selectAll(".d3-arc")
            .data(pie(data))
            .enter()
            .append("g") 
                .attr("class", "d3-arc")
                .style('stroke', '#fff')
                .style('cursor', 'pointer');
        
        // Append path
        var arcPath = arcGroup
            .append("path")
            .style("fill", function (d) { return d.data.color; });

        // Add tooltip
        arcPath
            .on('mouseover', function (d, i) {

                // Transition on mouseover
                d3.select(this)
                .transition()
                    .duration(500)
                    .ease('elastic')
                    .attr('transform', function (d) {
                        d.midAngle = ((d.endAngle - d.startAngle) / 2) + d.startAngle;
                        var x = Math.sin(d.midAngle) * distance;
                        var y = -Math.cos(d.midAngle) * distance;
                        return 'translate(' + x + ',' + y + ')';
                    });
            })

            .on("mousemove", function (d) {
                
                // Show tooltip on mousemove
                tip.show(d)
                    .style("top", (d3.event.pageY - 40) + "px")
                    .style("left", (d3.event.pageX + 30) + "px");
            })

            .on('mouseout', function (d, i) {

                // Mouseout transition
                d3.select(this)
                .transition()
                    .duration(500)
                    .ease('bounce')
                    .attr('transform', 'translate(0,0)');

                // Hide tooltip
                tip.hide(d);
            });

        // Animate chart on load
        arcPath
            .transition()
                .delay(function(d, i) { return i * 500; })
                .duration(500)
                .attrTween("d", function(d) {
                    var interpolate = d3.interpolate(d.startAngle,d.endAngle);
                    return function(t) {
                        d.endAngle = interpolate(t);
                        return arc(d);  
                    }; 
                });
    }




    // Campaign status donut chart
    // ------------------------------

    // Initialize chart
    campaignStatusPie("#campaign-status-pie", 42);

    // Chart setup
    function campaignStatusPie(element, size) {


        // Basic setup
        // ------------------------------

        // Add data set
        var data = [
            {
                "status": "Active campaigns",
                "icon": "<span class='status-mark border-blue-300 position-left'></span>",
                "value": 439,
                "color": "#29B6F6"
            }, {
                "status": "Closed campaigns",
                "icon": "<span class='status-mark border-danger-300 position-left'></span>",
                "value": 290,
                "color": "#EF5350"
            }, {
                "status": "Pending campaigns",
                "icon": "<span class='status-mark border-success-300 position-left'></span>",
                "value": 190,
                "color": "#81C784"
            }, {
                "status": "Campaigns on hold",
                "icon": "<span class='status-mark border-grey-300 position-left'></span>",
                "value": 148,
                "color": "#999"
            }
        ];

        // Main variables
        var d3Container = d3.select(element),
            distance = 2, // reserve 2px space for mouseover arc moving
            radius = (size/2) - distance,
            sum = d3.sum(data, function(d) { return d.value; })



        // Tooltip
        // ------------------------------

        var tip = d3.tip()
            .attr('class', 'd3-tip')
            .offset([-10, 0])
            .direction('e')
            .html(function (d) {
                return "<ul class='list-unstyled mb-5'>" +
                    "<li>" + "<div class='text-size-base mb-5 mt-5'>" + d.data.icon + d.data.status + "</div>" + "</li>" +
                    "<li>" + "Total: &nbsp;" + "<span class='text-semibold pull-right'>" + d.value + "</span>" + "</li>" +
                    "<li>" + "Share: &nbsp;" + "<span class='text-semibold pull-right'>" + (100 / (sum / d.value)).toFixed(2) + "%" + "</span>" + "</li>" +
                "</ul>";
            })



        // Create chart
        // ------------------------------

        // Add svg element
        var container = d3Container.append("svg").call(tip);
        
        // Add SVG group
        var svg = container
            .attr("width", size)
            .attr("height", size)
            .append("g")
                .attr("transform", "translate(" + (size / 2) + "," + (size / 2) + ")");  



        // Construct chart layout
        // ------------------------------

        // Pie
        var pie = d3.layout.pie()
            .sort(null)
            .startAngle(Math.PI)
            .endAngle(3 * Math.PI)
            .value(function (d) { 
                return d.value;
            }); 

        // Arc
        var arc = d3.svg.arc()
            .outerRadius(radius)
            .innerRadius(radius / 2);



        //
        // Append chart elements
        //

        // Group chart elements
        var arcGroup = svg.selectAll(".d3-arc")
            .data(pie(data))
            .enter()
            .append("g") 
                .attr("class", "d3-arc")
                .style('stroke', '#fff')
                .style('cursor', 'pointer');
        
        // Append path
        var arcPath = arcGroup
            .append("path")
            .style("fill", function (d) { return d.data.color; });

        // Add tooltip
        arcPath
            .on('mouseover', function (d, i) {

                // Transition on mouseover
                d3.select(this)
                .transition()
                    .duration(500)
                    .ease('elastic')
                    .attr('transform', function (d) {
                        d.midAngle = ((d.endAngle - d.startAngle) / 2) + d.startAngle;
                        var x = Math.sin(d.midAngle) * distance;
                        var y = -Math.cos(d.midAngle) * distance;
                        return 'translate(' + x + ',' + y + ')';
                    });
            })

            .on("mousemove", function (d) {
                
                // Show tooltip on mousemove
                tip.show(d)
                    .style("top", (d3.event.pageY - 40) + "px")
                    .style("left", (d3.event.pageX + 30) + "px");
            })

            .on('mouseout', function (d, i) {

                // Mouseout transition
                d3.select(this)
                .transition()
                    .duration(500)
                    .ease('bounce')
                    .attr('transform', 'translate(0,0)');

                // Hide tooltip
                tip.hide(d);
            });

        // Animate chart on load
        arcPath
            .transition()
                .delay(function(d, i) { return i * 500; })
                .duration(500)
                .attrTween("d", function(d) {
                    var interpolate = d3.interpolate(d.startAngle,d.endAngle);
                    return function(t) {
                        d.endAngle = interpolate(t);
                        return arc(d);  
                    }; 
                });
    }




    // Tickets status donut chart
    // ------------------------------

    // Initialize chart
    ticketStatusDonut("#tickets-status", 42);

    // Chart setup
    function ticketStatusDonut(element, size) {


        // Basic setup
        // ------------------------------

        // Add data set
        var data = [
            {
                "status": "Pending tickets",
                "icon": "<i class='status-mark border-blue-300 position-left'></i>",
                "value": 295,
                "color": "#29B6F6"
            }, {
                "status": "Resolved tickets",
                "icon": "<i class='status-mark border-success-300 position-left'></i>",
                "value": 189,
                "color": "#66BB6A"
            }, {
                "status": "Closed tickets",
                "icon": "<i class='status-mark border-danger-300 position-left'></i>",
                "value": 277,
                "color": "#EF5350"
            }
        ];

        // Main variables
        var d3Container = d3.select(element),
            distance = 2, // reserve 2px space for mouseover arc moving
            radius = (size/2) - distance,
            sum = d3.sum(data, function(d) { return d.value; })



        // Tooltip
        // ------------------------------

        var tip = d3.tip()
            .attr('class', 'd3-tip')
            .offset([-10, 0])
            .direction('e')
            .html(function (d) {
                return "<ul class='list-unstyled mb-5'>" +
                    "<li>" + "<div class='text-size-base mb-5 mt-5'>" + d.data.icon + d.data.status + "</div>" + "</li>" +
                    "<li>" + "Total: &nbsp;" + "<span class='text-semibold pull-right'>" + d.value + "</span>" + "</li>" +
                    "<li>" + "Share: &nbsp;" + "<span class='text-semibold pull-right'>" + (100 / (sum / d.value)).toFixed(2) + "%" + "</span>" + "</li>" +
                "</ul>";
            })



        // Create chart
        // ------------------------------

        // Add svg element
        var container = d3Container.append("svg").call(tip);
        
        // Add SVG group
        var svg = container
            .attr("width", size)
            .attr("height", size)
            .append("g")
                .attr("transform", "translate(" + (size / 2) + "," + (size / 2) + ")");  



        // Construct chart layout
        // ------------------------------

        // Pie
        var pie = d3.layout.pie()
            .sort(null)
            .startAngle(Math.PI)
            .endAngle(3 * Math.PI)
            .value(function (d) { 
                return d.value;
            }); 

        // Arc
        var arc = d3.svg.arc()
            .outerRadius(radius)
            .innerRadius(radius / 2);



        //
        // Append chart elements
        //

        // Group chart elements
        var arcGroup = svg.selectAll(".d3-arc")
            .data(pie(data))
            .enter()
            .append("g") 
                .attr("class", "d3-arc")
                .style('stroke', '#fff')
                .style('cursor', 'pointer');
        
        // Append path
        var arcPath = arcGroup
            .append("path")
            .style("fill", function (d) { return d.data.color; });

        // Add tooltip
        arcPath
            .on('mouseover', function (d, i) {

                // Transition on mouseover
                d3.select(this)
                .transition()
                    .duration(500)
                    .ease('elastic')
                    .attr('transform', function (d) {
                        d.midAngle = ((d.endAngle - d.startAngle) / 2) + d.startAngle;
                        var x = Math.sin(d.midAngle) * distance;
                        var y = -Math.cos(d.midAngle) * distance;
                        return 'translate(' + x + ',' + y + ')';
                    });
            })

            .on("mousemove", function (d) {
                
                // Show tooltip on mousemove
                tip.show(d)
                    .style("top", (d3.event.pageY - 40) + "px")
                    .style("left", (d3.event.pageX + 30) + "px");
            })

            .on('mouseout', function (d, i) {

                // Mouseout transition
                d3.select(this)
                .transition()
                    .duration(500)
                    .ease('bounce')
                    .attr('transform', 'translate(0,0)');

                // Hide tooltip
                tip.hide(d);
            });

        // Animate chart on load
        arcPath
            .transition()
                .delay(function(d, i) { return i * 500; })
                .duration(500)
                .attrTween("d", function(d) {
                    var interpolate = d3.interpolate(d.startAngle,d.endAngle);
                    return function(t) {
                        d.endAngle = interpolate(t);
                        return arc(d);  
                    }; 
                });
    }




    // Bar charts with random data
    // ------------------------------

    // Initialize charts
    generateBarChart("#hours-available-bars", 24, 40, true, "elastic", 1200, 50, "#EC407A", "hours");
    generateBarChart("#goal-bars", 24, 40, true, "elastic", 1200, 50, "#5C6BC0", "goal");
    generateBarChart("#members-online", 24, 50, true, "elastic", 1200, 50, "rgba(255,255,255,0.5)", "members");

    // Chart setup
    function generateBarChart(element, barQty, height, animate, easing, duration, delay, color, tooltip) {


        // Basic setup
        // ------------------------------

        // Add data set
        var bardata = [];
        for (var i=0; i < barQty; i++) {
            bardata.push(Math.round(Math.random()*10) + 10)
        }

        // Main variables
        var d3Container = d3.select(element),
            width = d3Container.node().getBoundingClientRect().width;
        


        // Construct scales
        // ------------------------------

        // Horizontal
        var x = d3.scale.ordinal()
            .rangeBands([0, width], 0.3)

        // Vertical
        var y = d3.scale.linear()
            .range([0, height]);



        // Set input domains
        // ------------------------------

        // Horizontal
        x.domain(d3.range(0, bardata.length))

        // Vertical
        y.domain([0, d3.max(bardata)])



        // Create chart
        // ------------------------------

        // Add svg element
        var container = d3Container.append('svg');

        // Add SVG group
        var svg = container
            .attr('width', width)
            .attr('height', height)
            .append('g');



        //
        // Append chart elements
        //

        // Bars
        var bars = svg.selectAll('rect')
            .data(bardata)
            .enter()
            .append('rect')
                .attr('class', 'd3-random-bars')
                .attr('width', x.rangeBand())
                .attr('x', function(d,i) {
                    return x(i);
                })
                .style('fill', color);



        // Tooltip
        // ------------------------------

        var tip = d3.tip()
            .attr('class', 'd3-tip')
            .offset([-10, 0]);

        // Show and hide
        if(tooltip == "hours" || tooltip == "goal" || tooltip == "members") {
            bars.call(tip)
                .on('mouseover', tip.show)
                .on('mouseout', tip.hide);
        }

        // Daily meetings tooltip content
        if(tooltip == "hours") {
            tip.html(function (d, i) {
                return "<div class='text-center'>" +
                        "<h6 class='no-margin'>" + d + "</h6>" +
                        "<span class='text-size-small'>meetings</span>" +
                        "<div class='text-size-small'>" + i + ":00" + "</div>" +
                    "</div>"
            });
        }

        // Statements tooltip content
        if(tooltip == "goal") {
            tip.html(function (d, i) {
                return "<div class='text-center'>" +
                        "<h6 class='no-margin'>" + d + "</h6>" +
                        "<span class='text-size-small'>statements</span>" +
                        "<div class='text-size-small'>" + i + ":00" + "</div>" +
                    "</div>"
            });
        }

        // Online members tooltip content
        if(tooltip == "members") {
            tip.html(function (d, i) {
                return "<div class='text-center'>" +
                        "<h6 class='no-margin'>" + d + "0" + "</h6>" +
                        "<span class='text-size-small'>members</span>" +
                        "<div class='text-size-small'>" + i + ":00" + "</div>" +
                    "</div>"
            });
        }



        // Bar loading animation
        // ------------------------------

        // Choose between animated or static
        if(animate) {
            withAnimation();
        } else {
            withoutAnimation();
        }

        // Animate on load
        function withAnimation() {
            bars
                .attr('height', 0)
                .attr('y', height)
                .transition()
                    .attr('height', function(d) {
                        return y(d);
                    })
                    .attr('y', function(d) {
                        return height - y(d);
                    })
                    .delay(function(d, i) {
                        return i * delay;
                    })
                    .duration(duration)
                    .ease(easing);
        }

        // Load without animateion
        function withoutAnimation() {
            bars
                .attr('height', function(d) {
                    return y(d);
                })
                .attr('y', function(d) {
                    return height - y(d);
                })
        }



        // Resize chart
        // ------------------------------

        // Call function on window resize
        $(window).on('resize', barsResize);

        // Call function on sidebar width change
        $(document).on('click', '.sidebar-control', barsResize);

        // Resize function
        // 
        // Since D3 doesn't support SVG resize by default,
        // we need to manually specify parts of the graph that need to 
        // be updated on window resize
        function barsResize() {

            // Layout variables
            width = d3Container.node().getBoundingClientRect().width;


            // Layout
            // -------------------------

            // Main svg width
            container.attr("width", width);

            // Width of appended group
            svg.attr("width", width);

            // Horizontal range
            x.rangeBands([0, width], 0.3);


            // Chart elements
            // -------------------------

            // Bars
            svg.selectAll('.d3-random-bars')
                .attr('width', x.rangeBand())
                .attr('x', function(d,i) {
                    return x(i);
                });
        }
    }




    // Animated progress chart
    // ------------------------------

    // Initialize charts
    progressCounter('#hours-available-progress', 38, 2, "#F06292", 0.68, "icon-watch text-pink-400", 'Hours available', '64% average')
    progressCounter('#goal-progress', 38, 2, "#5C6BC0", 0.82, "icon-trophy3 text-indigo-400", 'Productivity goal', '87% average')

    // Chart setup
    function progressCounter(element, radius, border, color, end, iconClass, textTitle, textAverage) {


        // Basic setup
        // ------------------------------

        // Main variables
        var d3Container = d3.select(element),
            startPercent = 0,
            iconSize = 32,
            endPercent = end,
            twoPi = Math.PI * 2,
            formatPercent = d3.format('.0%'),
            boxSize = radius * 2;

        // Values count
        var count = Math.abs((endPercent - startPercent) / 0.01);

        // Values step
        var step = endPercent < startPercent ? -0.01 : 0.01;



        // Create chart
        // ------------------------------

        // Add SVG element
        var container = d3Container.append('svg');

        // Add SVG group
        var svg = container
            .attr('width', boxSize)
            .attr('height', boxSize)
            .append('g')
                .attr('transform', 'translate(' + (boxSize / 2) + ',' + (boxSize / 2) + ')');



        // Construct chart layout
        // ------------------------------

        // Arc
        var arc = d3.svg.arc()
            .startAngle(0)
            .innerRadius(radius)
            .outerRadius(radius - border);



        //
        // Append chart elements
        //

        // Paths
        // ------------------------------

        // Background path
        svg.append('path')
            .attr('class', 'd3-progress-background')
            .attr('d', arc.endAngle(twoPi))
            .style('fill', '#eee');

        // Foreground path
        var foreground = svg.append('path')
            .attr('class', 'd3-progress-foreground')
            .attr('filter', 'url(#blur)')
            .style('fill', color)
            .style('stroke', color);

        // Front path
        var front = svg.append('path')
            .attr('class', 'd3-progress-front')
            .style('fill', color)
            .style('fill-opacity', 1);



        // Text
        // ------------------------------

        // Percentage text value
        var numberText = d3.select(element)
            .append('h2')
                .attr('class', 'mt-15 mb-5')

        // Icon
        d3.select(element)
            .append("i")
                .attr("class", iconClass + " counter-icon")
                .attr('style', 'top: ' + ((boxSize - iconSize) / 2) + 'px');

        // Title
        d3.select(element)
            .append('div')
                .text(textTitle);

        // Subtitle
        d3.select(element)
            .append('div')
                .attr('class', 'text-size-small text-muted')
                .text(textAverage);



        // Animation
        // ------------------------------

        // Animate path
        function updateProgress(progress) {
            foreground.attr('d', arc.endAngle(twoPi * progress));
            front.attr('d', arc.endAngle(twoPi * progress));
            numberText.text(formatPercent(progress));
        }

        // Animate text
        var progress = startPercent;
        (function loops() {
            updateProgress(progress);
            if (count > 0) {
                count--;
                progress += step;
                setTimeout(loops, 10);
            }
        })();
    }




    // Bullet charts
    // ------------------------------

    // Initialize chart
    bulletChart("#bullets", 80);

    // Chart setup
    function bulletChart(element, height) {


        // Bullet chart core
        // ------------------------------

        bulletCore();
        function bulletCore() {

            // Construct
            d3.bullet = function() {

                // Default layout variables
                var orient = "left",
                    reverse = false,
                    duration = 750,
                    ranges = bulletRanges,
                    markers = bulletMarkers,
                    measures = bulletMeasures,
                    height = 30,
                    tickFormat = null;

                // For each small multiple…
                function bullet(g) {
                    g.each(function(d, i) {

                        // Define variables
                        var rangez = ranges.call(this, d, i).slice().sort(d3.descending),
                            markerz = markers.call(this, d, i).slice().sort(d3.descending),
                            measurez = measures.call(this, d, i).slice().sort(d3.descending),
                            g = d3.select(this);

                        // Compute the new x-scale.
                        var x1 = d3.scale.linear()
                            .domain([0, Math.max(rangez[0], markerz[0], measurez[0])])
                            .range(reverse ? [width, 0] : [0, width]);

                        // Retrieve the old x-scale, if this is an update.
                        var x0 = this.__chart__ || d3.scale.linear()
                            .domain([0, Infinity])
                            .range(x1.range());

                        // Stash the new scale.
                        this.__chart__ = x1;

                        // Derive width-scales from the x-scales.
                        var w0 = bulletWidth(x0),
                            w1 = bulletWidth(x1);



                        // Setup range
                        // ------------------------------

                        // Update the range rects
                        var range = g.selectAll(".bullet-range")
                            .data(rangez);

                        // Append range rect
                        range.enter()
                            .append("rect")
                                .attr("class", function(d, i) { return "bullet-range bullet-range-" + (i + 1); })
                                .attr("width", w0)
                                .attr("height", height)
                                .attr('rx', 2)
                                .attr("x", reverse ? x0 : 0)

                        // Add loading animation
                        .transition()
                            .duration(duration)
                            .attr("width", w1)
                            .attr("x", reverse ? x1 : 0);

                        // Add update animation
                        range.transition()
                            .duration(duration)
                            .attr("x", reverse ? x1 : 0)
                            .attr("width", w1)
                            .attr("height", height);



                        // Setup measures
                        // ------------------------------

                        // Update the measure rects
                        var measure = g.selectAll(".bullet-measure")
                            .data(measurez);

                        // Append measure rect
                        measure.enter()
                            .append("rect")
                                .attr("class", function(d, i) { return "bullet-measure bullet-measure-" + (i + 1); })
                                .attr("width", w0)
                                .attr("height", height / 5)
                                .attr("x", reverse ? x0 : 0)
                                .attr("y", height / 2.5)
                                .style("shape-rendering", "crispEdges");

                        // Add loading animation
                        measure.transition()
                            .duration(duration)
                            .attr("width", w1)
                            .attr("x", reverse ? x1 : 0);

                        // Add update animation
                        measure.transition()
                            .duration(duration)
                            .attr("width", w1)
                            .attr("height", height / 5)
                            .attr("x", reverse ? x1 : 0)
                            .attr("y", height / 2.5);



                        // Setup markers
                        // ------------------------------

                        // Update the marker lines
                        var marker = g.selectAll(".bullet-marker")
                            .data(markerz);

                        // Append marker line
                        marker.enter()
                            .append("line")
                                .attr("class", function(d, i) { return "bullet-marker bullet-marker-" + (i + 1); })
                                .attr("x1", x0)
                                .attr("x2", x0)
                                .attr("y1", height / 6)
                                .attr("y2", height * 5 / 6);

                        // Add loading animation
                        marker.transition()
                            .duration(duration)
                            .attr("x1", x1)
                            .attr("x2", x1);

                        // Add update animation
                        marker.transition()
                            .duration(duration)
                            .attr("x1", x1)
                            .attr("x2", x1)
                            .attr("y1", height / 6)
                            .attr("y2", height * 5 / 6);



                        // Setup axes
                        // ------------------------------

                        // Compute the tick format.
                        var format = tickFormat || x1.tickFormat(8);

                        // Update the tick groups.
                        var tick = g.selectAll(".bullet-tick")
                            .data(x1.ticks(8), function(d) {
                                return this.textContent || format(d);
                            });

                        // Initialize the ticks with the old scale, x0.
                        var tickEnter = tick.enter()
                            .append("g")
                                .attr("class", "bullet-tick")
                                .attr("transform", bulletTranslate(x0))
                                .style("opacity", 1e-6);

                        // Append line
                        tickEnter.append("line")
                            .attr("y1", height)
                            .attr("y2", (height * 7 / 6) + 3);

                        // Append text
                        tickEnter.append("text")
                            .attr("text-anchor", "middle")
                            .attr("dy", "1em")
                            .attr("y", (height * 7 / 6) + 4)
                            .text(format);

                        // Transition the entering ticks to the new scale, x1.
                        tickEnter.transition()
                            .duration(duration)
                            .attr("transform", bulletTranslate(x1))
                            .style("opacity", 1);

                        // Transition the updating ticks to the new scale, x1.
                        var tickUpdate = tick.transition()
                            .duration(duration)
                            .attr("transform", bulletTranslate(x1))
                            .style("opacity", 1);

                        // Update tick line
                        tickUpdate.select("line")
                            .attr("y1", height + 3)
                            .attr("y2", (height * 7 / 6) + 3);

                        // Update tick text
                        tickUpdate.select("text")
                            .attr("y", (height * 7 / 6) + 4);

                        // Transition the exiting ticks to the new scale, x1.
                        tick.exit()
                            .transition()
                                .duration(duration)
                                .attr("transform", bulletTranslate(x1))
                                .style("opacity", 1e-6)
                                .remove();



                        // Resize chart
                        // ------------------------------

                        // Call function on window resize
                        $(window).on('resize', resizeBulletsCore);

                        // Call function on sidebar width change
                        $(document).on('click', '.sidebar-control', resizeBulletsCore);

                        // Resize function
                        // 
                        // Since D3 doesn't support SVG resize by default,
                        // we need to manually specify parts of the graph that need to 
                        // be updated on window resize
                        function resizeBulletsCore() {

                            // Layout variables
                            width = d3.select("#bullets").node().getBoundingClientRect().width - margin.left - margin.right;
                            w1 = bulletWidth(x1);


                            // Layout
                            // -------------------------

                            // Horizontal range
                            x1.range(reverse ? [width, 0] : [0, width]);


                            // Chart elements
                            // -------------------------

                            // Measures
                            g.selectAll(".bullet-measure").attr("width", w1).attr("x", reverse ? x1 : 0);

                            // Ranges
                            g.selectAll(".bullet-range").attr("width", w1).attr("x", reverse ? x1 : 0);

                            // Markers
                            g.selectAll(".bullet-marker").attr("x1", x1).attr("x2", x1)

                            // Ticks
                            g.selectAll(".bullet-tick").attr("transform", bulletTranslate(x1))
                        }
                    });

                    d3.timer.flush();
                }


                // Constructor functions
                // ------------------------------

                // Left, right, top, bottom
                bullet.orient = function(x) {
                    if (!arguments.length) return orient;
                    orient = x;
                    reverse = orient == "right" || orient == "bottom";
                    return bullet;
                };

                // Ranges (bad, satisfactory, good)
                bullet.ranges = function(x) {
                    if (!arguments.length) return ranges;
                    ranges = x;
                    return bullet;
                };

                // Markers (previous, goal)
                bullet.markers = function(x) {
                    if (!arguments.length) return markers;
                    markers = x;
                    return bullet;
                };

                // Measures (actual, forecast)
                bullet.measures = function(x) {
                    if (!arguments.length) return measures;
                    measures = x;
                    return bullet;
                };

                // Width
                bullet.width = function(x) {
                    if (!arguments.length) return width;
                    width = x;
                    return bullet;
                };

                // Height
                bullet.height = function(x) {
                    if (!arguments.length) return height;
                    height = x;
                    return bullet;
                };

                // Axex tick format
                bullet.tickFormat = function(x) {
                    if (!arguments.length) return tickFormat;
                    tickFormat = x;
                    return bullet;
                };

                // Transition duration
                bullet.duration = function(x) {
                    if (!arguments.length) return duration;
                    duration = x;
                    return bullet;
                };

                return bullet;
            };

            // Ranges
            function bulletRanges(d) {
                return d.ranges;
            }

            // Markers
            function bulletMarkers(d) {
                return d.markers;
            }

            // Measures
            function bulletMeasures(d) {
                return d.measures;
            }

            // Positioning
            function bulletTranslate(x) {
                return function(d) {
                    return "translate(" + x(d) + ",0)";
                };
            }

            // Width
            function bulletWidth(x) {
                var x0 = x(0);
                return function(d) {
                    return Math.abs(x(d) - x0);
                };
            }
        }



        // Basic setup
        // ------------------------------

        // Main variables
        var d3Container = d3.select(element),
            margin = {top: 20, right: 10, bottom: 35, left: 10},
            width = width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right,
            height = height - margin.top - margin.bottom;



        // Construct chart layout
        // ------------------------------

        var chart = d3.bullet()
            .width(width)
            .height(height);



        // Load data
        // ------------------------------

        d3.json("assets/demo_data/dashboard/bullets.json", function(error, data) {

            // Show what's wrong if error
            if (error) return console.error(error);


            // Create SVG
            // ------------------------------

            // SVG container
            var container = d3Container.selectAll("svg")
                .data(data)
                .enter()
                .append('svg');

            // SVG group
            var svg = container
                .attr("class", function(d, i) { return "bullet-" + (i + 1); })
                .attr('width', width + margin.left + margin.right)
                .attr('height', height + margin.top + margin.bottom)
                .append("g")
                    .attr("transform", "translate(" + margin.left + "," + margin.top + ")")
                    .call(chart);



            // Add title
            // ------------------------------

            // Title group
            var title = svg.append("g")
                .style("text-anchor", "start");

            // Bullet title text
            title.append("text")
                .attr("class", "bullet-title")
                .attr('y', -10)
                .text(function(d) { return d.title; });

            // Bullet subtitle text
            title.append("text")
                .attr("class", "bullet-subtitle")
                .attr('x', width)
                .attr('y', -10)
                .style("text-anchor", "end")
                .text(function(d) { return d.subtitle; })
                .style('opacity', 0)
                .transition()
                    .duration(500)
                    .delay(500)
                    .style('opacity', 1);



            // Add random transition for demo
            // ------------------------------

            // Bind data
            var interval = function() {
                svg.datum(randomize).call(chart.duration(750));
            }

            // Set interval
            var intervalIds = [];
            intervalIds.push(
                setInterval(function() {
                    interval()
                }, 5000)
            );

            // Add Switchery toggle control
            var realtime = document.querySelector('.switcher');
            var realtimeInit = new Switchery(realtime);
            realtime.onchange = function() {
                if(realtime.checked) {
                    intervalIds.push(setInterval(function() { interval() }, 5000));
                }
                else {
                    for (var i=0; i < intervalIds.length; i++) {
                        clearInterval(intervalIds[i]);
                    }
                }
            };



            // Resize chart
            // ------------------------------

            // Call function on window resize
            $(window).on('resize', bulletResize);

            // Call function on sidebar width change
            $(document).on('click', '.sidebar-control', bulletResize);

            // Resize function
            // 
            // Since D3 doesn't support SVG resize by default,
            // we need to manually specify parts of the graph that need to 
            // be updated on window resize
            function bulletResize() {

                // Layout variables
                width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right;


                // Layout
                // -------------------------

                // Main svg width
                container.attr("width", width + margin.left + margin.right);

                // Width of appended group
                svg.attr("width", width + margin.left + margin.right);


                // Chart elements
                // -------------------------

                // Subtitle
                svg.selectAll('.bullet-subtitle').attr("x", width);
            }
        });



        // Randomizers
        // ------------------------------

        function randomize(d) {
            if (!d.randomizer) d.randomizer = randomizer(d);
            d.ranges = d.ranges.map(d.randomizer);
            d.markers = d.markers.map(d.randomizer);
            d.measures = d.measures.map(d.randomizer);
            return d;
        }
        function randomizer(d) {
            var k = d3.max(d.ranges) * .2;
            return function(d) {
                return Math.max(0, d + k * (Math.random() - .5));
            };
        }
    }




    // Other codes
    // ------------------------------

    // Grab first letter and insert to the icon
    $(".table tr").each(function (i) {

        // Title
        var $title = $(this).find('.letter-icon-title'),
            letter = $title.eq(0).text().charAt(0).toUpperCase();

        // Icon
        var $icon = $(this).find('.letter-icon');
            $icon.eq(0).text(letter);
    });

});
