@mui/x-charts/legacy/LineChart/extremums.js

The community edition of the charts components (MUI X).

import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
import _toConsumableArray from "@babel/runtime/helpers/esm/toConsumableArray";
export var getExtremumX = function getExtremumX(params) {
  var _axis$data, _axis$data2;
  var axis = params.axis;
  var minX = Math.min.apply(Math, _toConsumableArray((_axis$data = axis.data) != null ? _axis$data : []));
  var maxX = Math.max.apply(Math, _toConsumableArray((_axis$data2 = axis.data) != null ? _axis$data2 : []));
  return [minX, maxX];
};
function getSeriesExtremums(getValues, stackedData) {
  if (stackedData.length === 0) {
    return [null, null];
  }
  return stackedData.reduce(function (seriesAcc, stackedValue) {
    var _getValues = getValues(stackedValue),
      _getValues2 = _slicedToArray(_getValues, 2),
      base = _getValues2[0],
      value = _getValues2[1];
    if (seriesAcc[0] === null) {
      return [Math.min(base, value), Math.max(base, value)];
    }
    return [Math.min(base, value, seriesAcc[0]), Math.max(base, value, seriesAcc[1])];
  }, getValues(stackedData[0]));
}
export var getExtremumY = function getExtremumY(params) {
  var series = params.series,
    axis = params.axis,
    isDefaultAxis = params.isDefaultAxis;
  return Object.keys(series).filter(function (seriesId) {
    return series[seriesId].yAxisKey === axis.id || isDefaultAxis && series[seriesId].yAxisKey === undefined;
  }).reduce(function (acc, seriesId) {
    var _series$seriesId = series[seriesId],
      area = _series$seriesId.area,
      stackedData = _series$seriesId.stackedData;
    var isArea = area !== undefined;
    var getValues = isArea ? function (d) {
      return d;
    } : function (d) {
      return [d[1], d[1]];
    }; // Since this series is not used to display an area, we do not consider the base (the d[0]).

    var seriesExtremums = getSeriesExtremums(getValues, stackedData);
    if (acc[0] === null) {
      return seriesExtremums;
    }
    if (seriesExtremums[0] === null) {
      return acc;
    }
    var _seriesExtremums = _slicedToArray(seriesExtremums, 2),
      seriesMin = _seriesExtremums[0],
      seriesMax = _seriesExtremums[1];
    return [Math.min(seriesMin, acc[0]), Math.max(seriesMax, acc[1])];
  }, [null, null]);
};