xLbl: _chartLabel()

in modules/frontend/app/components/page-queries/components/queries-notebook/controller.ts [528:717]
145 lines of code
19 McCabe index (conditional complexity)

                                xLbl: _chartLabel(row, xCol, null),
                                y: _chartNumber(row, colIdx, index)
                            };

                            index++;

                            return v;
                        });

                        datum.push({series: valCol.label, key: valCol.label, values});
                    }
                });
            }

            return datum;
        }

        function _xX(d) {
            return d.x;
        }

        function _yY(d) {
            return d.y;
        }

        function _xAxisTimeFormat(d) {
            return d3.time.format('%X')(new Date(d));
        }

        const _intClasses = ['java.lang.Byte', 'java.lang.Integer', 'java.lang.Long', 'java.lang.Short'];

        function _intType(cls) {
            return _.includes(_intClasses, cls);
        }

        const _xAxisWithLabelFormat = function(paragraph) {
            return function(d) {
                const values = paragraph.charts[0].data[0].values;

                const fmt = _intType(paragraph.chartKeyCols[0].type) ? 'd' : ',.2f';

                const dx = values[d];

                if (!dx)
                    return d3.format(fmt)(d);

                const lbl = dx.xLbl;

                return lbl ? lbl : d3.format(fmt)(d);
            };
        };

        function _xAxisLabel(paragraph) {
            return _.isEmpty(paragraph.chartKeyCols) ? 'X' : paragraph.chartKeyCols[0].label;
        }

        const _yAxisFormat = function(d) {
            const fmt = d < 1000 ? ',.2f' : '.3s';

            return d3.format(fmt)(d);
        };

        function _updateCharts(paragraph) {
            $timeout(() => _.forEach(paragraph.charts, (chart) => chart.api.update()), 100);
        }

        function _updateChartsWithData(paragraph, newDatum) {
            $timeout(() => {
                if (!paragraph.chartTimeLineEnabled()) {
                    const chartDatum = paragraph.charts[0].data;

                    chartDatum.length = 0;

                    _.forEach(newDatum, (series) => chartDatum.push(series));
                }

                paragraph.charts[0].api.update();
            });
        }

        function _yAxisLabel(paragraph) {
            const cols = paragraph.chartValCols;

            const tml = paragraph.chartTimeLineEnabled();

            return _.isEmpty(cols) ? 'Y' : _.map(cols, function(col) {
                let lbl = col.label;

                if (tml)
                    lbl += ' [' + col.aggFx + ']';

                return lbl;
            }).join(', ');
        }

        function _barChart(paragraph) {
            const datum = _chartDatum(paragraph);

            if (_.isEmpty(paragraph.charts)) {
                const stacked = paragraph.chartsOptions && paragraph.chartsOptions.barChart
                    ? paragraph.chartsOptions.barChart.stacked
                    : true;

                const options = {
                    chart: {
                        type: 'multiBarChart',
                        height: 400,
                        margin: {left: 70},
                        duration: 0,
                        x: _xX,
                        y: _yY,
                        xAxis: {
                            axisLabel: _xAxisLabel(paragraph),
                            tickFormat: paragraph.chartTimeLineEnabled() ? _xAxisTimeFormat : _xAxisWithLabelFormat(paragraph),
                            showMaxMin: false
                        },
                        yAxis: {
                            axisLabel: _yAxisLabel(paragraph),
                            tickFormat: _yAxisFormat
                        },
                        color: IgniteChartColors,
                        stacked,
                        showControls: true,
                        legend: {
                            vers: 'furious',
                            margin: {right: -15}
                        }
                    }
                };

                paragraph.charts = [{options, data: datum}];

                _updateCharts(paragraph);
            }
            else
                _updateChartsWithData(paragraph, datum);
        }

        function _pieChartDatum(paragraph) {
            const datum = [];

            if (paragraph.chartColumnsConfigured() && !paragraph.chartTimeLineEnabled()) {
                paragraph.chartValCols.forEach(function(valCol) {
                    let index = paragraph.total;

                    const values = _.map(paragraph.rows, (row) => {
                        const xCol = paragraph.chartKeyCols[0].value;

                        const v = {
                            x: xCol < 0 ? index : row[xCol],
                            y: _chartNumber(row, valCol.value, index)
                        };

                        // Workaround for known problem with zero values on Pie chart.
                        if (v.y === 0)
                            v.y = 0.0001;

                        index++;

                        return v;
                    });

                    datum.push({series: paragraph.chartKeyCols[0].label, key: valCol.label, values});
                });
            }

            return datum;
        }

        function _pieChart(paragraph) {
            let datum = _pieChartDatum(paragraph);

            if (datum.length === 0)
                datum = [{values: []}];

            paragraph.charts = _.map(datum, function(data) {
                return {
                    options: {
                        chart: {
                            type: 'pieChart',
                            height: 400,
                            duration: 0,
                            x: _xX,
                            y: _yY,
                            showLabels: true,
                            labelThreshold: 0.05,
                            labelType: 'percent',
                            donut: true,
                            donutRatio: 0.35,
                            legend: {