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/*
* SonarQube
* Copyright (C) 2009-2017 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
import * as React from 'react';
import * as classNames from 'classnames';
interface Props {
className?: string;
name: string;
size: number;
}
export default function GenericAvatar({ className, name, size }: Props) {
const color = stringToColor(name);
let text = '';
const words = name.split(/\s+/).filter(word => word.length > 0);
if (words.length >= 2) {
text = words[0][0] + words[1][0];
} else if (name.length > 0) {
text = name[0];
}
return (
<div
className={classNames(className, 'rounded')}
style={{
backgroundColor: color,
color: getTextColor(color),
display: 'inline-block',
fontSize: Math.min(size / 2, 14),
fontWeight: 'normal',
height: size,
lineHeight: `${size}px`,
textAlign: 'center',
verticalAlign: 'top',
width: size
}}>
{text.toUpperCase()}
</div>
);
}
/* eslint-disable no-bitwise, no-mixed-operators */
function stringToColor(str: string) {
let hash = 0;
for (let i = 0; i < str.length; i++) {
hash = str.charCodeAt(i) + ((hash << 5) - hash);
}
let color = '#';
for (let i = 0; i < 3; i++) {
const value = (hash >> (i * 8)) & 0xff;
color += ('00' + value.toString(16)).substr(-2);
}
return color;
}
function getTextColor(background: string) {
const rgb = parseInt(background.substr(1), 16);
const r = (rgb >> 16) & 0xff;
const g = (rgb >> 8) & 0xff;
const b = (rgb >> 0) & 0xff;
const luma = 0.2126 * r + 0.7152 * g + 0.0722 * b;
return luma > 140 ? '#222' : '#fff';
}
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