61 lines
1.5 KiB
JavaScript
61 lines
1.5 KiB
JavaScript
// @flow
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import _ from 'lodash';
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const AVATAR_COLORS = [
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'#6A50D3',
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'#FF9B42',
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'#DF486F',
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'#73348C',
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'#B23683',
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'#F96E57',
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'#4380E2',
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'#2AA076',
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'#00A8B3'
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];
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/**
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* Generates the background color of an initials based avatar.
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*
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* @param {string?} initials - The initials of the avatar.
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* @param {Array<strig>} customAvatarBackgrounds - Custom avatar background values.
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* @returns {string}
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*/
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export function getAvatarColor(initials: ?string, customAvatarBackgrounds: Array<string>) {
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const hasCustomAvatarBackgronds = customAvatarBackgrounds && customAvatarBackgrounds.length;
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const colorsBase = hasCustomAvatarBackgronds ? customAvatarBackgrounds : AVATAR_COLORS;
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let colorIndex = 0;
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if (initials) {
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let nameHash = 0;
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for (const s of initials) {
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nameHash += s.codePointAt(0);
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}
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colorIndex = nameHash % colorsBase.length;
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}
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return colorsBase[colorIndex];
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}
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/**
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* Generates initials for a simple string.
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*
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* @param {string?} s - The string to generate initials for.
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* @returns {string?}
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*/
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export function getInitials(s: ?string) {
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// We don't want to use the domain part of an email address, if it is one
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const initialsBasis = _.split(s, '@')[0];
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const words = _.words(initialsBasis);
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let initials = '';
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for (const w of words) {
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(initials.length < 2) && (initials += String.fromCodePoint(w.codePointAt(0)).toUpperCase());
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}
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return initials;
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}
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