function prepareSeries()

in viz-lib/src/visualizations/chart/plotly/prepareDefaultData.ts [74:154]

• 68 lines of code
• 13 McCabe index (conditional complexity)

function prepareSeries(series: any, options: any, additionalOptions: any) {
  const { hoverInfoPattern, index } = additionalOptions;

  const seriesOptions = extend({ type: options.globalSeriesType, yAxis: 0 }, options.seriesOptions[series.name]);
  const seriesColor = getSeriesColor(seriesOptions, index);
  const seriesYAxis = getSeriesAxis(series, options);

  // Sort by x - `Map` preserves order of items
  const data = options.sortX ? sortBy(series.data, d => normalizeValue(d.x, options.xAxis.type)) : series.data;

  // For bubble/scatter charts `y` may be any (similar to `x`) - numeric is only bubble size;
  // for other types `y` is always number
  const cleanYValue = includes(["bubble", "scatter"], seriesOptions.type)
    ? normalizeValue
    : (v: any) => {
        v = cleanNumber(v);
        return options.missingValuesAsZero && isNil(v) ? 0.0 : v;
      };

  const sourceData = new Map();
  const xValues: any = [];
  const yValues: any = [];
  const yErrorValues: any = [];
  each(data, row => {
    const x = normalizeValue(row.x, options.xAxis.type); // number/datetime/category
    const y = cleanYValue(row.y, seriesYAxis === "y2" ? options.yAxis[1].type : options.yAxis[0].type); // depends on series type!
    const yError = cleanNumber(row.yError); // always number
    const size = cleanNumber(row.size); // always number
    sourceData.set(x, {
      x,
      y,
      yError,
      size,
      yPercent: null, // will be updated later
      row,
    });
    xValues.push(x);
    yValues.push(y);
    yErrorValues.push(yError);
  });

  const plotlySeries = {
    visible: true,
    hoverinfo: hoverInfoPattern,
    x: xValues,
    y: yValues,
    error_y: {
      array: yErrorValues,
      color: seriesColor,
    },
    name: seriesOptions.name || series.name,
    marker: { color: seriesColor },
    insidetextfont: {
      color: chooseTextColorForBackground(seriesColor),
    },
    yaxis: seriesYAxis,
    sourceData,
  };

  additionalOptions = { ...additionalOptions, seriesColor, data };

  switch (seriesOptions.type) {
    case "column":
      return prepareBarSeries(plotlySeries, options, additionalOptions);
    case "line":
      // @ts-expect-error ts-migrate(2554) FIXME: Expected 2 arguments, but got 3.
      return prepareLineSeries(plotlySeries, options, additionalOptions);
    case "area":
      // @ts-expect-error ts-migrate(2554) FIXME: Expected 2 arguments, but got 3.
      return prepareAreaSeries(plotlySeries, options, additionalOptions);
    case "scatter":
      // @ts-expect-error ts-migrate(2554) FIXME: Expected 2 arguments, but got 3.
      return prepareScatterSeries(plotlySeries, options, additionalOptions);
    case "bubble":
      return prepareBubbleSeries(plotlySeries, options, additionalOptions);
    case "box":
      return prepareBoxSeries(plotlySeries, options, additionalOptions);
    default:
      return plotlySeries;
  }
}