var data = [], totalPoints = 110;
var updateInterval = 320;
var realtime = 'on';

$(function () {
    //Real time ==========================================================================================
    var plot = $.plot('#real_time_chart', [getRandomData()], {
        series: {
            shadowSize: 0,
            color: 'rgb(0, 188, 212)'
        },
        grid: {
            borderColor: '#f3f3f3',
            borderWidth: 1,
            tickColor: '#f3f3f3'
        },
        lines: {
            fill: true
        },
        yaxis: {
            min: 0,
            max: 100
        },
        xaxis: {
            min: 0,
            max: 100
        }
    });

    function updateRealTime() {
        plot.setData([getRandomData()]);
        plot.draw();

        var timeout;
        if (realtime === 'on') {
            timeout = setTimeout(updateRealTime, updateInterval);
        } else {
            clearTimeout(timeout);
        }
    }

    updateRealTime();

    $('#realtime').on('change', function () {
        realtime = this.checked ? 'on' : 'off';
        updateRealTime();
    });
    //====================================================================================================

    //Tracking ===========================================================================================
    var sin = [], cos = [];
    for (var i = 0; i < 14; i += 0.1) {
        sin.push([i, Math.sin(i)]);
        cos.push([i, Math.cos(i)]);
    }

    var trackingData = [
        {
            data: sin,
            label: 'sin(x) = -0.00',
            color: '#E91E63'
        },
        {
            data: cos,
            label: 'cos(x) = -0.00',
            color: '#00BCD4'
        }
    ];

    var trackingPlot = $.plot('#tracking_chart', trackingData, {
        crosshair: {
            mode: 'x'
        },
        grid: {
            hoverable: true,
            autoHighlight: false,
            borderColor: '#f3f3f3',
            borderWidth: 1,
            tickColor: '#f3f3f3'
        },
        yaxis: {
            min: -1.2,
            max: 1.2
        }
    });

    var legends = $('#tracking_chart .legendLabel');

    legends.each(function () {
        $(this).css('width', $(this).width());
    });

    var updateLegendTimeout = null;
    var latestPosition = null;

    function updateLegend() {
        updateLegendTimeout = null;
        var pos = latestPosition;

        var axes = trackingPlot.getAxes();
        if (pos.x < axes.xaxis.min || pos.x > axes.xaxis.max ||
            pos.y < axes.yaxis.min || pos.y > axes.yaxis.max) {
            return;
        }

        var i, j, dataset = trackingPlot.getData();
        for (i = 0; i < dataset.length; ++i) {
            var series = dataset[i];

            for (j = 0; j < series.data.length; ++j) {
                if (series.data[j][0] > pos.x) {
                    break;
                }
            }

            var y, p1 = series.data[j - 1], p2 = series.data[j];

            if (p1 == null) {
                y = p2[1];
            } else if (p2 == null) {
                y = p1[1];
            } else {
                y = p1[1] + (p2[1] - p1[1]) * (pos.x - p1[0]) / (p2[0] - p1[0]);
            }

            legends.eq(i).text(series.label.replace(/=.*/, '= ' + y.toFixed(2)));
        }
    }

    $('#tracking_chart').bind('plothover', function (event, pos, item) {
        latestPosition = pos;
        if (!updateLegendTimeout) {
            updateLegendTimeout = setTimeout(updateLegend, 50);
        }
    });
    //====================================================================================================

    //MULTIPLE AXIS ======================================================================================
    var oilprices = [[1167692400000, 61.05], [1167778800000, 58.32], [1167865200000, 57.35], [1167951600000, 56.31], [1168210800000, 55.55], [1168297200000, 55.64], [1168383600000, 54.02], [1168470000000, 51.88], [1168556400000, 52.99], [1168815600000, 52.99], [1168902000000, 51.21], [1168988400000, 52.24], [1169074800000, 50.48], [1169161200000, 51.99], [1169420400000, 51.13], [1169506800000, 55.04], [1169593200000, 55.37], [1169679600000, 54.23], [1169766000000, 55.42], [1170025200000, 54.01], [1170111600000, 56.97], [1170198000000, 58.14], [1170284400000, 58.14], [1170370800000, 59.02], [1170630000000, 58.74], [1170716400000, 58.88], [1170802800000, 57.71], [1170889200000, 59.71], [1170975600000, 59.89], [1171234800000, 57.81], [1171321200000, 59.06], [1171407600000, 58.00], [1171494000000, 57.99], [1171580400000, 59.39], [1171839600000, 59.39], [1171926000000, 58.07], [1172012400000, 60.07], [1172098800000, 61.14], [1172444400000, 61.39], [1172530800000, 61.46], [1172617200000, 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    var exchangerates = [[1167606000000, 0.7580], [1167692400000, 0.7580], [1167778800000, 0.75470], [1167865200000, 0.75490], [1167951600000, 0.76130], [1168038000000, 0.76550], [1168124400000, 0.76930], [1168210800000, 0.76940], [1168297200000, 0.76880], [1168383600000, 0.76780], [1168470000000, 0.77080], [1168556400000, 0.77270], [1168642800000, 0.77490], [1168729200000, 0.77410], [1168815600000, 0.77410], [1168902000000, 0.77320], [1168988400000, 0.77270], [1169074800000, 0.77370], [1169161200000, 0.77240], [1169247600000, 0.77120], [1169334000000, 0.7720], [1169420400000, 0.77210], [1169506800000, 0.77170], [1169593200000, 0.77040], [1169679600000, 0.7690], [1169766000000, 0.77110], [1169852400000, 0.7740], [1169938800000, 0.77450], [1170025200000, 0.77450], [1170111600000, 0.7740], [1170198000000, 0.77160], [1170284400000, 0.77130], [1170370800000, 0.76780], [1170457200000, 0.76880], [1170543600000, 0.77180], [1170630000000, 0.77180], [1170716400000, 0.77280], [1170802800000, 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0.64140], [1214085600000, 0.64090], [1214172000000, 0.64090], [1214258400000, 0.64280], [1214344800000, 0.64310], [1214431200000, 0.64180], [1214517600000, 0.63710], [1214604000000, 0.63490], [1214690400000, 0.63330], [1214776800000, 0.63340], [1214863200000, 0.63380], [1214949600000, 0.63420], [1215036000000, 0.6320], [1215122400000, 0.63180], [1215208800000, 0.6370], [1215295200000, 0.63680], [1215381600000, 0.63680], [1215468000000, 0.63830], [1215554400000, 0.63710], [1215640800000, 0.63710], [1215727200000, 0.63550], [1215813600000, 0.6320], [1215900000000, 0.62770], [1215986400000, 0.62760], [1216072800000, 0.62910], [1216159200000, 0.62740], [1216245600000, 0.62930], [1216332000000, 0.63110], [1216418400000, 0.6310], [1216504800000, 0.63120], [1216591200000, 0.63120], [1216677600000, 0.63040], [1216764000000, 0.62940], [1216850400000, 0.63480], [1216936800000, 0.63780], [1217023200000, 0.63680], [1217109600000, 0.63680], [1217196000000, 0.63680], [1217282400000, 0.6360], [1217368800000, 0.6370], [1217455200000, 0.64180], [1217541600000, 0.64110], [1217628000000, 0.64350], [1217714400000, 0.64270], [1217800800000, 0.64270], [1217887200000, 0.64190], [1217973600000, 0.64460], [1218060000000, 0.64680], [1218146400000, 0.64870], [1218232800000, 0.65940], [1218319200000, 0.66660], [1218405600000, 0.66660], [1218492000000, 0.66780], [1218578400000, 0.67120], [1218664800000, 0.67050], [1218751200000, 0.67180], [1218837600000, 0.67840], [1218924000000, 0.68110], [1219010400000, 0.68110], [1219096800000, 0.67940], [1219183200000, 0.68040], [1219269600000, 0.67810], [1219356000000, 0.67560], [1219442400000, 0.67350], [1219528800000, 0.67630], [1219615200000, 0.67620], [1219701600000, 0.67770], [1219788000000, 0.68150], [1219874400000, 0.68020], [1219960800000, 0.6780], [1220047200000, 0.67960], [1220133600000, 0.68170], [1220220000000, 0.68170], [1220306400000, 0.68320], [1220392800000, 0.68770], [1220479200000, 0.69120], [1220565600000, 0.69140], [1220652000000, 0.70090], [1220738400000, 0.70120], [1220824800000, 0.7010], [1220911200000, 0.70050]];

    function euroFormatter(v, axis) {
        return v.toFixed(axis.tickDecimals) + '€';
    }

    $.plot('#multiple_axis_chart', [
        { data: oilprices, label: 'Oil price ($)', color: '#E91E63' },
        { data: exchangerates, label: 'USD/EUR exchange rate', yaxis: 2, color: '#00BCD4' }
    ], {
        xaxes: [{ mode: 'time' }],
        yaxes: [{ min: 0 }, {
            alignTicksWithAxis: 1,
            position: 'right',
            tickFormatter: euroFormatter
        }],
        grid: {
            hoverable: true,
            autoHighlight: false,
            borderColor: '#f3f3f3',
            borderWidth: 1,
            tickColor: '#f3f3f3'
        },
        legend: { position: 'sw' }
    });
    //====================================================================================================

    //BAR CHART ==========================================================================================
    var barChartData = [];
    for (var i = 0; i <= 10; i += 1) {
        barChartData.push([i, parseInt(Math.random() * 30)]);
    }

    $.plot('#bar_chart', [barChartData], {
        series: {
            stack: 0,
            lines: {
                show: false,
                fill: true,
                steps: false
            },
            bars: {
                show: true,
                barWidth: 0.6
            },
            color: '#00BCD4'
        },
        grid: {
            hoverable: true,
            autoHighlight: false,
            borderColor: '#f3f3f3',
            borderWidth: 1,
            tickColor: '#f3f3f3'
        }
    });
    //====================================================================================================

    //PIE CHART ==========================================================================================
    var pieChartData = [], pieChartSeries = 4;
    var pieChartColors = ['#E91E63', '#03A9F4', '#FFC107', '#009688'];
    var pieChartDatas = [45, 17, 28, 10];

    for (var i = 0; i < pieChartSeries; i++) {
        pieChartData[i] = {
            label: 'Serie - ' + (i + 1),
            data: pieChartDatas[i],
            color: pieChartColors[i]
        }
    }
    $.plot('#pie_chart', pieChartData, {
        series: {
            pie: {
                show: true,
                radius: 1,
                label: {
                    show: true,
                    radius: 3 / 4,
                    formatter: labelFormatter,
                    background: {
                        opacity: 0.5
                    }
                }
            }
        },
        legend: {
            show: false
        }
    });
    function labelFormatter(label, series) {
        return '<div style="font-size:8pt; text-align:center; padding:2px; color:white;">' + label + '<br/>' + Math.round(series.percent) + '%</div>';
    }
    //====================================================================================================
});

function getRandomData() {
    if (data.length > 0) data = data.slice(1);

    while (data.length < totalPoints) {
        var prev = data.length > 0 ? data[data.length - 1] : 50, y = prev + Math.random() * 10 - 5;
        if (y < 0) { y = 0; } else if (y > 100) { y = 100; }

        data.push(y);
    }

    var res = [];
    for (var i = 0; i < data.length; ++i) {
        res.push([i, data[i]])
    }

    return res;
}