@netdata/charts
Version:
Netdata frontend SDK and chart utilities
123 lines • 6.82 kB
JavaScript
function _toConsumableArray(r) { return _arrayWithoutHoles(r) || _iterableToArray(r) || _unsupportedIterableToArray(r) || _nonIterableSpread(); }
function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _iterableToArray(r) { if ("undefined" != typeof Symbol && null != r[Symbol.iterator] || null != r["@@iterator"]) return Array.from(r); }
function _arrayWithoutHoles(r) { if (Array.isArray(r)) return _arrayLikeToArray(r); }
function _slicedToArray(r, e) { return _arrayWithHoles(r) || _iterableToArrayLimit(r, e) || _unsupportedIterableToArray(r, e) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(r, a) { if (r) { if ("string" == typeof r) return _arrayLikeToArray(r, a); var t = {}.toString.call(r).slice(8, -1); return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0; } }
function _arrayLikeToArray(r, a) { (null == a || a > r.length) && (a = r.length); for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e]; return n; }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t["return"] && (u = t["return"](), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(r) { if (Array.isArray(r)) return r; }
import conversableUnits, { makeConversableKey, keys as conversableKeys } from "../units/conversableUnits";
import convert, { getScales, getUnitConfig, isScalable } from "../units";
var scalable = function scalable(units, delta, desiredUnits) {
var _getScales = getScales(units),
_getScales2 = _slicedToArray(_getScales, 2),
scaleKeys = _getScales2[0],
scaleByKey = _getScales2[1];
var _getUnitConfig = getUnitConfig(units),
_getUnitConfig$base_u = _getUnitConfig.base_unit,
base = _getUnitConfig$base_u === void 0 ? units : _getUnitConfig$base_u,
prefix = _getUnitConfig.prefix_symbol;
var _getUnitConfig2 = getUnitConfig(desiredUnits),
_getUnitConfig2$base_ = _getUnitConfig2.base_unit,
desiredBase = _getUnitConfig2$base_ === void 0 ? desiredUnits : _getUnitConfig2$base_,
desiredPrefix = _getUnitConfig2.prefix_symbol;
if (desiredUnits && base === desiredBase && prefix !== desiredPrefix) {
var desiredScales = getScales(desiredUnits);
if (desiredScales) {
return ["adjust", function (value) {
return value * (scaleByKey[prefix] || 1) / (scaleByKey[desiredPrefix] || 1);
}, desiredPrefix, desiredBase];
}
}
delta = delta * (scaleByKey[prefix] || 1);
var scale = _toConsumableArray(scaleKeys).reverse().find(function (scale) {
return delta >= (scaleByKey[scale] || 1);
});
return scale ? ["adjust", function (value) {
return value * (scaleByKey[prefix] || 1) / (scaleByKey[scale] || 1);
}, scale === "1" ? "" : scale, base] : ["original"];
};
var conversable = function conversable(chart, units, delta, desiredUnits) {
var scales = conversableUnits[units];
if (desiredUnits !== "auto") {
return desiredUnits in scales ? [makeConversableKey(units, desiredUnits), undefined, desiredUnits] : ["original"];
}
var scaleKeys = conversableKeys[units] || Object.keys(scales);
var scaleIndex = scaleKeys.findIndex(function (scale) {
return (scales[scale] || 1).check(chart, delta);
});
if (scaleIndex === -1) return ["original"];
var key = scaleKeys[scaleIndex];
return [makeConversableKey(units, key), null, "", key];
};
var getMethod = function getMethod(chart, units, min, max) {
if (!isScalable(units)) return ["original"];
var _chart$getAttributes = chart.getAttributes(),
desiredUnits = _chart$getAttributes.desiredUnits;
var absMin = Math.abs(min);
var absMax = Math.abs(max);
var delta = absMin > absMax ? absMin : absMax;
if (conversableUnits[units]) return conversable(chart, units, delta, desiredUnits);
return scalable(units, delta, desiredUnits);
};
var decimals = [1000, 100, 10, 1, 0.1, 0.01, 0.001];
var getFractionDigits = function getFractionDigits(value) {
var index = decimals.findIndex(function (d) {
return value > d;
});
var digits = index === -1 ? decimals.length - 1 : index;
return digits === 3 ? 4 : digits;
};
export var getConversionAttributes = function getConversionAttributes(chart, unit, _ref) {
var min = _ref.min,
max = _ref.max,
_ref$maxDecimals = _ref.maxDecimals,
maxDecimals = _ref$maxDecimals === void 0 ? 5 : _ref$maxDecimals;
var _getMethod = getMethod(chart, unit, min, max),
_getMethod2 = _slicedToArray(_getMethod, 4),
method = _getMethod2[0],
divider = _getMethod2[1],
_getMethod2$ = _getMethod2[2],
prefix = _getMethod2$ === void 0 ? "" : _getMethod2$,
_getMethod2$2 = _getMethod2[3],
base = _getMethod2$2 === void 0 ? "" : _getMethod2$2;
var cMin = convert(chart, method, min, divider);
var cMax = convert(chart, method, max, divider);
var delta = Math.abs(cMin === cMax ? cMin : cMax - cMin);
var fractionDigits = isNaN(delta) || delta === 0 ? -1 : getFractionDigits(delta);
return {
method: method,
divider: divider,
fractionDigits: fractionDigits > maxDecimals ? maxDecimals : fractionDigits,
prefix: prefix,
base: base,
unit: unit
};
};
var getConversionUnits = function getConversionUnits(chart, unitsKey) {
var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
var units = chart.getAttribute(unitsKey);
return units.reduce(function (h, unit) {
var _getConversionAttribu = getConversionAttributes(chart, unit, options),
method = _getConversionAttribu.method,
divider = _getConversionAttribu.divider,
fractionDigits = _getConversionAttribu.fractionDigits,
prefix = _getConversionAttribu.prefix,
base = _getConversionAttribu.base;
h.method.push(method);
h.divider.push(divider);
h.fractionDigits.push(fractionDigits);
h.prefix.push(prefix);
h.base.push(base);
return h;
}, {
method: [],
fractionDigits: [],
prefix: [],
base: [],
divider: []
});
};
export default getConversionUnits;