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Merge pull request #566 from acelaya-forks/feature/nil-optimization

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Fixed unintended usage of false where only null or undefined should m…
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Alejandro Celaya 2022-01-08 15:14:29 +01:00 committed by GitHub
commit 6e72c343ab
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1 changed files with 8 additions and 4 deletions
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12
src/utils/services/ColorGenerator.ts
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@ -1,10 +1,14 @@
import { isNil } from 'ramda';
import { rangeOf } from '../utils';
import LocalStorage from './LocalStorage';
const HEX_COLOR_LENGTH = 6;
const HEX_DIGITS = '0123456789ABCDEF';
const LIGHTNESS_BREAKPOINT = 128;
const { floor, random, sqrt, round } = Math;
const letters = '0123456789ABCDEF';
const buildRandomColor = () => `#${rangeOf(HEX_COLOR_LENGTH, () => letters[floor(random() * letters.length)]).join('')}`;
const buildRandomColor = () =>
`#${rangeOf(HEX_COLOR_LENGTH, () => HEX_DIGITS[floor(random() * HEX_DIGITS.length)]).join('')}`;
const normalizeKey = (key: string) => key.toLowerCase().trim();
const hexColorToRgbArray = (colorHex: string): number[] =>
(colorHex.match(/../g) ?? []).map((hex) => parseInt(hex, 16) || 0);
@ -44,10 +48,10 @@ export default class ColorGenerator {
public readonly isColorLightForKey = (key: string): boolean => {
const colorHex = this.getColorForKey(key).substring(1);
if (!this.lights[colorHex]) {
if (isNil(this.lights[colorHex])) {
const rgb = hexColorToRgbArray(colorHex);
this.lights[colorHex] = perceivedLightness(...rgb) >= 128;
this.lights[colorHex] = perceivedLightness(...rgb) >= LIGHTNESS_BREAKPOINT;
}
return this.lights[colorHex];