// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.

// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// Parity 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 General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with Parity.  If not, see <http://www.gnu.org/licenses/>.

import React, { Component, PropTypes } from 'react';
import { FormattedMessage } from 'react-intl';

import { arrayOrObjectProptype } from '@parity/shared/util/proptypes';
import { ContainerTitle, SectionList } from '@parity/ui';

import Dapp from './dapp';
import styles from './dapps.css';

export default class Dapps extends Component {
  static propTypes = {
    history: arrayOrObjectProptype().isRequired,
    store: PropTypes.object.isRequired
  }

  render () {
    return (
      <div className={ styles.dapps }>
        <ContainerTitle
          title={
            <FormattedMessage
              id='home.dapps.title'
              defaultMessage='Recent Dapps'
            />
          }
        />
        { this.renderHistory() }
      </div>
    );
  }

  renderHistory () {
    const { history } = this.props;

    if (!history.length) {
      return (
        <div className={ styles.empty }>
          <FormattedMessage
            id='home.dapps.none'
            defaultMessage='No recent Applications history available'
          />
        </div>
      );
    }

    return (
      <SectionList
        items={ history }
        renderItem={ this.renderHistoryItem }
      />
    );
  }

  renderHistoryItem = (history) => {
    if (!history || !history.entry) {
      return null;
    }

    const { store } = this.props;

    return (
      <Dapp
        id={ history.entry }
        key={ history.timestamp }
        store={ store }
        timestamp={ history.timestamp }
      />
    );
  }
}
