$(function() {

    if (!$('#dashboard-visits-chart').length) {
        return false;
    }

    // drawing visits chart
    drawVisitsChart();

    var el = null;
    var item = 'visits';

    $('a[data-toggle="tab"]').on('shown.bs.tab', function (e) {

       el = e.target;
       item = $(el).attr('href').replace('#', '');
       switchHistoryCharts(item);

    });

    $(document).on("themechange", function(){
        switchHistoryCharts(item);
    });

    function switchHistoryCharts(item){
        var chartSelector = "#dashboard-" + item + "-chart";

        if ($(chartSelector).has('svg').length) {
            $(chartSelector).empty();
        }

        switch(item){
            case 'visits':
                drawVisitsChart();
                break;
             case 'downloads':
                drawDownloadsChart();
                break;
        }
    }

    function drawVisitsChart(){
        var dataVisits = [
            { x: '2015-09-01', y: 70},
            { x: '2015-09-02', y: 75 },
            { x: '2015-09-03', y: 50},
            { x: '2015-09-04', y: 75 },
            { x: '2015-09-05', y: 50 },
            { x: '2015-09-06', y: 75 },
            { x: '2015-09-07', y: 86 }
        ];


        Morris.Line({
            element: 'dashboard-visits-chart',
            data: dataVisits,
            xkey: 'x',
            ykeys: ['y'],
            ymin: 'auto 40',
            labels: ['Visits'],
            xLabels: "day",
            hideHover: 'auto',
            yLabelFormat: function (y) {
                // Only integers
                if (y === parseInt(y, 10)) {
                    return y;
                }
                else {
                    return '';
                }
            },
            resize: true,
            lineColors: [
                config.chart.colorSecondary.toString(),
            ],
            pointFillColors: [
                 config.chart.colorPrimary.toString(),
            ]
        });
    }

    function drawDownloadsChart(){

        var dataDownloads = [
            {
                year: '2006',
                downloads: 1300
            },
            {
                year: '2007',
                downloads: 1526
            },
            {
                year: '2008',
                downloads: 2000
            },
            {
                year: '2009',
                downloads: 1800
            },
            {
                year: '2010',
                downloads: 1650
            },
            {
                year: '2011',
                downloads: 620
            },
            {
                year: '2012',
                downloads: 1000
            },
            {
                year: '2013',
                downloads: 1896
            },
            {
                year: '2014',
                downloads: 850
            },
            {
                year: '2015',
                downloads: 1500
            }
        ];


        Morris.Bar({
            element: 'dashboard-downloads-chart',
            data: dataDownloads,
            xkey: 'year',
            ykeys: ['downloads'],
            labels: ['Downloads'],
            hideHover: 'auto',
            resize: true,
            barColors: [
                config.chart.colorPrimary.toString(),
                tinycolor(config.chart.colorPrimary.toString()).darken(10).toString()
            ],
        });
    }
});