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/* ------------------------------------------------------------------------------
 *
 *  # Dashboard configuration
 *
 *  Demo dashboard configuration. Contains charts and plugin initializations
 *
 * ---------------------------------------------------------------------------- */

// Setup module
// ------------------------------

var Dashboard = function () {

//
    // Setup module components
    //

// Setup Switchery
    var _componentSwitchery = function() {
        if (typeof Switchery == 'undefined') {
            console.warn('Warning - switchery.min.js is not loaded.');
            return;
        }

// Initialize multiple switches
        var switches = Array.prototype.slice.call(document.querySelectorAll('.form-input-switchery'));
        switches.forEach(function(html) {
            var switchery = new Switchery(html);
        });
    };

// Setup Daterangepicker
    var _componentDaterange = function() {
        if (!$().daterangepicker) {
            console.warn('Warning - daterangepicker.js is not loaded.');
            return;
        }

// Initialize
        $('.daterange-ranges').daterangepicker(
            {
                startDate: moment().subtract(29, 'days'),
                endDate: moment(),
                minDate: '01/01/2015',
                maxDate: '12/31/2019',
                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: $('html').attr('dir') == 'rtl' ? 'right' : 'left',
                applyClass: 'btn-sm bg-slate-600 btn-block',
                cancelClass: 'btn-sm btn-light btn-block',
                locale: {
                    format: 'MM/DD/YYYY',
                    direction: $('html').attr('dir') == 'rtl' ? 'rtl' : 'ltr'
                }
            },
            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'));
    };

// Use first letter as an icon
    var _componentIconLetter = function() {

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

// 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);
        });
    };

//
    // Charts configs
    //

// Traffic sources stream chart
    var _TrafficSourcesStreamChart = function(element, height) {
        if (typeof d3 == 'undefined') {
            console.warn('Warning - d3.min.js is not loaded.');
            return;
        }

// Initialize chart only if element exsists in the DOM
        if($(element).length > 0) {

// 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('../../../../global_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-1">' +
                                    '<li>' + '<div class="font-size-base my-1"><i class="icon-circle-left2 mr-2"></i>' + d.key + '</div>' + '</li>' +
                                    '<li>' + 'Visits:  ' + "<span class='font-weight-semibold float-right'>" + pro + '</span>' + '</li>' +
                                    '<li>' + 'Time:   ' + '<span class="font-weight-semibold float-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];

// 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 line chart
    var _AppSalesLinesChart = function(element, height) {
        if (typeof d3 == 'undefined' || typeof d3.tip == 'undefined') {
            console.warn('Warning - d3.min.js is not loaded.');
            return;
        }

// Initialize chart only if element exsists in the DOM
        if($(element).length > 0) {

// 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-1">' +
                        '<li>' + '<div class="font-size-base my-1"><i class="icon-circle-left2 mr-2"></i>' + d.name + ' app' + '</div>' + '</li>' +
                        '<li>' + 'Sales:  ' + '<span class="font-weight-semibold float-right">' + d.value + '</span>' + '</li>' +
                        '<li>' + 'Revenue:   ' + '<span class="font-weight-semibold float-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: 'text-default font-weight-semibold bg-transparent border-0 cursor-pointer outline-0 py-0 pl-0',
                enableHTML: true,
                dropRight: $('html').attr('dir') == 'rtl' ? false : true,
                onChange: function() {
                    change();
                },
                buttonText: function (options, element) {
                    var selected = '';
                    options.each(function() {
                        selected += $(this).html() + ', ';
                    });
                    return '<span class="badge badge-mark border-warning mr-2"></span>' + selected.substr(0, selected.length -2);
                }
            });

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

d3.csv('../../../../global_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
                // ------------------------------

// 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', 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)})
                }
            }
        }
    };

// Monthly sales area chart
    var _MonthlySalesAreaChart = function(element, height, color) {
        if (typeof d3 == 'undefined') {
            console.warn('Warning - d3.min.js is not loaded.');
            return;
        }

// Initialize chart only if element exsists in the DOM
        if($(element).length > 0) {

// 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('../../../../global_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);
                }
            });
        }
    };

// Daily sales heatmap
    var _AppSalesHeatmap = function(element) {
        if (typeof d3 == 'undefined') {
            console.warn('Warning - d3.min.js is not loaded.');
            return;
        }

// Initialize chart only if element exsists in the DOM
        if($(element).length > 0) {

// Load data
            d3.csv('../../../../global_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(element);
                    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);
                }
            });
        }
    };

// Messages area chart
    var _MessagesAreaChart = function(element, height, color) {
        if (typeof d3 == 'undefined') {
            console.warn('Warning - d3.min.js is not loaded.');
            return;
        }

// Initialize chart only if element exsists in the DOM
        if($(element).length > 0) {

// 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;