// @flow

import React from 'react';
import { toDataUrl } from 'ethereum-blockies';
import { isValidETHAddress } from 'libs/validators';

type Props = {
  address: string,
  size?: string
};

export default function Identicon(props: Props) {
  const size = props.size || '4rem';
  // FIXME breaks on failed checksums
  const identiconDataUrl = isValidETHAddress(props.address.toLowerCase())
    ? toDataUrl(props.address.toLowerCase())
    : '';
  return (
    <div
      style={{ position: 'relative', width: size, height: size }}
      title="Address Indenticon"
    >
      <div
        style={{
          position: 'absolute',
          left: 0,
          right: 0,
          top: 0,
          bottom: 0,
          borderRadius: '50%',

          boxShadow: `
                    inset rgba(255, 255, 255, 0.5) 0 2px 2px,
                    inset rgba(0, 0, 0, 0.6) 0 -1px 8px
                  `
        }}
      />
      {identiconDataUrl &&
        <img
          src={identiconDataUrl}
          style={{
            borderRadius: '50%',
            width: '100%',
            height: '100%'
          }}
        />}
    </div>
  );
}