@netdata/charts/dist/helpers/heatmapScale.js

Netdata frontend SDK and chart utilities

"use strict";

function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.sortHeatmapValues = exports.parseHeatmapValue = exports.isHeatmapNumeric = exports.isHeatmapBinary = exports.formatScaledValue = exports.formatHeatmapLabel = exports.detectHeatmapScale = void 0;
var _scalableUnits = _interopRequireWildcard(require("./units/scalableUnits"));
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function _interopRequireWildcard(e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, "default": e }; if (null === e || "object" != _typeof(e) && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (var _t in e) "default" !== _t && {}.hasOwnProperty.call(e, _t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, _t)) && (i.get || i.set) ? o(f, _t, i) : f[_t] = e[_t]); return f; })(e, t); }
var heatmapValueRegex = /^\d*\.?\d+$/;
var heatmapInfRegex = /^\+inf$/i;
var heatmapPrefixRegex = /^.+_(\d*\.?\d+|\+[Ii]nf)$/;
var getHeatmapValueLabel = function getHeatmapValueLabel(value) {
  var _value$match;
  if (typeof value !== "string") return value;
  return ((_value$match = value.match(heatmapPrefixRegex)) === null || _value$match === void 0 ? void 0 : _value$match[1]) || value;
};
var parseHeatmapValue = exports.parseHeatmapValue = function parseHeatmapValue(value) {
  var label = getHeatmapValueLabel(value);
  if (typeof label !== "string") return NaN;
  if (heatmapInfRegex.test(label)) return Infinity;
  if (!heatmapValueRegex.test(label)) return NaN;
  return parseFloat(label);
};
var isHeatmapNumeric = exports.isHeatmapNumeric = function isHeatmapNumeric(values) {
  return values.every(function (value) {
    return !isNaN(parseHeatmapValue(value));
  });
};
var isHeatmapBinary = exports.isHeatmapBinary = function isHeatmapBinary(values) {
  var hasBinaryCandidate = false;
  return values.every(function (value) {
    var parsed = parseHeatmapValue(value);
    if (!isFinite(parsed) || parsed <= 1) return true;
    hasBinaryCandidate = true;
    return Number.isInteger(parsed) && parsed > 0 && Number.isInteger(Math.log2(parsed));
  }) && hasBinaryCandidate;
};
var detectHeatmapScale = exports.detectHeatmapScale = function detectHeatmapScale(values) {
  if (!values.length || !isHeatmapNumeric(values)) return null;
  return isHeatmapBinary(values) ? "binary" : "num";
};
var sortHeatmapValues = exports.sortHeatmapValues = function sortHeatmapValues(values) {
  if (!isHeatmapNumeric(values)) return null;
  return values.map(function (value, index) {
    return {
      value: value,
      index: index,
      parsed: parseHeatmapValue(value)
    };
  }).sort(function (a, b) {
    return a.parsed - b.parsed || a.index - b.index;
  }).map(function (_ref) {
    var value = _ref.value;
    return value;
  });
};
var getScaleEntries = function getScaleEntries(scale) {
  return (_scalableUnits.keys[scale] || []).map(function (prefix) {
    return {
      prefix: prefix === "1" ? "" : prefix,
      divider: prefix === "1" ? 1 : _scalableUnits["default"][scale][prefix]
    };
  });
};
var formatNumber = function formatNumber(value) {
  if (value > 0 && value < 0.01) return parseFloat(value.toPrecision(3)).toString();
  return parseFloat(value.toFixed(2)).toString();
};
var formatScaledValue = exports.formatScaledValue = function formatScaledValue(value, scale) {
  if (!value) return "0";
  var entries = getScaleEntries(scale);
  var entry = entries.reduce(function (selected, candidate) {
    return candidate.divider <= value && candidate.divider > selected.divider ? candidate : selected;
  }, {
    prefix: "",
    divider: 0
  });
  if (!entry.divider) return formatNumber(value);
  return "".concat(formatNumber(value / entry.divider)).concat(entry.prefix);
};
var formatHeatmapLabel = exports.formatHeatmapLabel = function formatHeatmapLabel(value, scale) {
  var label = getHeatmapValueLabel(value);
  if (typeof label !== "string") return value;
  if (heatmapInfRegex.test(label)) return "+Inf";
  if (!scale) return label;
  var parsed = parseHeatmapValue(label);
  if (isNaN(parsed)) return label;
  return formatScaledValue(parsed, scale);
};