// Copyright 2015, 2016 Ethcore (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 { Link } from 'react-router';
import { connect } from 'react-redux';
import { bindActionCreators } from 'redux';
import ActionFingerprint from 'material-ui/svg-icons/action/fingerprint';
import ContentClear from 'material-ui/svg-icons/content/clear';

import { Badge, Button, ContainerTitle, ParityBackground } from '../../ui';
import { Embedded as Signer } from '../Signer';

import imagesEthcoreBlock from '../../../assets/images/parity-logo-white-no-text.svg';
import styles from './parityBar.css';

class ParityBar extends Component {
  static contextTypes = {
    muiTheme: PropTypes.object.isRequired
  };

  static propTypes = {
    pending: PropTypes.array,
    dapp: PropTypes.bool
  }

  state = {
    opened: false
  }

  componentWillReceiveProps (nextProps) {
    const count = this.props.pending.length;
    const newCount = nextProps.pending.length;

    if (count === newCount) {
      return;
    }

    if (count < newCount) {
      this.setState({ opened: true });
    } else if (newCount === 0 && count === 1) {
      this.setState({ opened: false });
    }
  }

  render () {
    const { opened } = this.state;

    return opened
      ? this.renderExpanded()
      : this.renderBar();
  }

  renderBar () {
    const { dapp } = this.props;
    const { muiTheme } = this.context;

    if (!dapp) {
      return null;
    }

    const parityIcon = (
      <img
        src={ imagesEthcoreBlock }
        className={ styles.parityIcon } />
    );

    return (
      <div className={ styles.bar }>
        <ParityBackground className={ styles.corner } muiTheme={ muiTheme }>
          <div className={ styles.cornercolor }>
            <Link to='/apps'>
              <Button
                className={ styles.parityButton }
                icon={ parityIcon }
                label={ this.renderLabel('Parity') } />
            </Link>
            <Button
              className={ styles.button }
              icon={ <ActionFingerprint /> }
              label={ this.renderSignerLabel() }
              onClick={ this.toggleDisplay } />
          </div>
        </ParityBackground>
      </div>
    );
  }

  renderExpanded () {
    const { muiTheme } = this.context;

    return (
      <div className={ styles.overlay }>
        <ParityBackground className={ styles.expanded } muiTheme={ muiTheme }>
          <div className={ styles.header }>
            <div className={ styles.title }>
              <ContainerTitle title='Parity Signer: Pending' />
            </div>
            <div className={ styles.actions }>
              <Button
                icon={ <ContentClear /> }
                label='Close'
                onClick={ this.toggleDisplay } />
            </div>
          </div>
          <div className={ styles.content }>
            <Signer />
          </div>
        </ParityBackground>
      </div>
    );
  }

  renderLabel (name, bubble) {
    return (
      <div className={ styles.label }>
        <div className={ styles.labelText }>
          { name }
        </div>
        { bubble }
      </div>
    );
  }

  renderSignerLabel () {
    const { pending } = this.props;
    let bubble = null;

    if (pending && pending.length) {
      bubble = (
        <Badge
          color='red'
          className={ styles.labelBubble }
          value={ pending.length } />
      );
    }

    return this.renderLabel('Signer', bubble);
  }

  toggleDisplay = () => {
    const { opened } = this.state;

    this.setState({
      opened: !opened
    });
  }
}

function mapStateToProps (state) {
  const { pending } = state.signer;

  return {
    pending
  };
}

function mapDispatchToProps (dispatch) {
  return bindActionCreators({}, dispatch);
}

export default connect(
  mapStateToProps,
  mapDispatchToProps
)(ParityBar);