import React from 'react';

import { ApiProps } from '@polkadot/react-api/types';
import { I18nProps } from '@polkadot/react-components/types';
import { withCalls } from '@polkadot/react-api/with';
import { Table } from 'semantic-ui-react';
import { formatBalance } from '@polkadot/util';
import CouncilCandidate from './CandidatePreview';

import { calcBackersStake } from '@polkadot/joy-utils/index';
import { Seat } from '@joystream/types/';
import translate from './translate';
import Section from '@polkadot/joy-utils/Section';

type Props = ApiProps &
I18nProps & {
  council?: Seat[];
};

type State = {};

class Council extends React.PureComponent<Props, State> {
  state: State = {};

  private renderTable (council: Seat[]) {
    return (
      <Table celled selectable compact>
        <Table.Header>
          <Table.Row>
            <Table.HeaderCell>#</Table.HeaderCell>
            <Table.HeaderCell>Council member</Table.HeaderCell>
            <Table.HeaderCell>Own stake</Table.HeaderCell>
            <Table.HeaderCell>{'Backers\' stake'}</Table.HeaderCell>
            <Table.HeaderCell>Backers count</Table.HeaderCell>
          </Table.Row>
        </Table.Header>
        <Table.Body>
          {council.map((seat, index) => (
            <Table.Row key={index}>
              <Table.Cell>{index + 1}</Table.Cell>
              <Table.Cell>
                <CouncilCandidate accountId={seat.member} />
              </Table.Cell>
              <Table.Cell>{formatBalance(seat.stake)}</Table.Cell>
              <Table.Cell>{formatBalance(calcBackersStake(seat.backers))}</Table.Cell>
              <Table.Cell>{seat.backers.length}</Table.Cell>
            </Table.Row>
          ))}
        </Table.Body>
      </Table>
    );
  }

  render () {
    const { council = [] } = this.props;
    // console.log({ council });
    return (
      <Section title="Active council members">
        {!council.length ? <em>Council is not elected yet</em> : this.renderTable(council)}
      </Section>
    );
  }
}

// inject the actual API calls automatically into props
export default translate(
  withCalls<Props>(['query.council.activeCouncil', { propName: 'council' }])(Council)
);