// Copyright 2017-2020 @polkadot/react-components authors & contributors
// This software may be modified and distributed under the terms
// of the Apache-2.0 license. See the LICENSE file for details.

import { IdentityProps as Props } from '@polkadot/react-identicon/types';

import React, { useCallback, useContext, useEffect, useState } from 'react';
import styled from 'styled-components';
import { getSystemIcon } from '@polkadot/apps-config/ui';
import { useApi } from '@polkadot/react-hooks';
import BaseIdentityIcon from '@polkadot/react-identicon';
import uiSettings from '@polkadot/ui-settings';
import { ValidatorsContext } from '@polkadot/react-query';

import StatusContext from './Status/Context';
import { useTranslation } from './translate';

export function getIdentityTheme (systemName: string): 'substrate' {
  return ((uiSettings.icon === 'default' && getSystemIcon(systemName)) || uiSettings.icon) as 'substrate';
}

function IdentityIcon ({ className = '', onCopy, prefix, size = 24, theme, value }: Props): React.ReactElement<Props> {
  const { systemName } = useApi();
  const { t } = useTranslation();
  const { queueAction } = useContext(StatusContext);
  const validators = useContext(ValidatorsContext);
  const [isValidator, setIsValidator] = useState(false);
  const [address, setAddress] = useState(value?.toString());
  const thisTheme = theme || getIdentityTheme(systemName);

  useEffect((): void => {
    value && setIsValidator(
      validators.includes(value.toString())
    );
    value && setAddress(value.toString());
  }, [value, validators]);

  const _onCopy = useCallback(
    (account: string): void => {
      onCopy && onCopy(account);
      queueAction && queueAction({
        account,
        action: t<string>('clipboard'),
        message: t<string>('address copied'),
        status: 'queued'
      });
    },
    [onCopy, queueAction, t]
  );

  return (
    <span className={`ui--IdentityIcon-Outer ${className}`}>
      <BaseIdentityIcon
        isHighlight={isValidator}
        onCopy={_onCopy}
        prefix={prefix}
        size={size}
        theme={thisTheme as 'substrate'}
        value={address}
      />
    </span>
  );
}

export default React.memo(styled(IdentityIcon)`
  .ui--IdentityIcon {
    display: block;
  }
`);