import React, { PureComponent } from 'react';
import PropTypes from 'prop-types';
import { Session } from 'meteor/session';
import _ from 'lodash';
import cx from 'classnames';
import { withModalMounter } from '/imports/ui/components/modal/service';
import withShortcutHelper from '/imports/ui/components/shortcut-help/service';
import getFromUserSettings from '/imports/ui/services/users-settings';
import { defineMessages, injectIntl } from 'react-intl';
import { styles } from './styles.scss';
import Button from '../button/component';
import RecordingIndicator from './recording-indicator/component';
import SettingsDropdownContainer from './settings-dropdown/container';

const intlMessages = defineMessages({
  toggleUserListLabel: {
    id: 'app.navBar.userListToggleBtnLabel',
    description: 'Toggle button label',
  },
  toggleUserListAria: {
    id: 'app.navBar.toggleUserList.ariaLabel',
    description: 'description of the lists inside the userlist',
  },
  newMessages: {
    id: 'app.navBar.toggleUserList.newMessages',
    description: 'label for toggleUserList btn when showing red notification',
  },
  recordingSession: {
    id: 'app.navBar.recording',
    description: 'label for when the session is being recorded',
  },
  recordingIndicatorOn: {
    id: 'app.navBar.recording.on',
    description: 'label for indicator when the session is being recorded',
  },
  recordingIndicatorOff: {
    id: 'app.navBar.recording.off',
    description: 'label for indicator when the session is not being recorded',
  },
  startTitle: {
    id: 'app.recording.startTitle',
    description: 'start recording title',
  },
  stopTitle: {
    id: 'app.recording.stopTitle',
    description: 'stop recording title',
  },
  resumeTitle: {
    id: 'app.recording.resumeTitle',
    description: 'resume recording title',
  },
});

const propTypes = {
  presentationTitle: PropTypes.string,
  hasUnreadMessages: PropTypes.bool,
  recordProps: PropTypes.shape({
    time: PropTypes.number,
    recording: PropTypes.bool,
  }),
  shortcuts: PropTypes.string,
};

const defaultProps = {
  presentationTitle: 'Default Room Title',
  hasUnreadMessages: false,
  recordProps: {
    allowStartStopRecording: false,
    autoStartRecording: false,
    record: false,
    recording: false,
  },
  shortcuts: '',
};

class NavBar extends PureComponent {
  static handleToggleUserList() {
    Session.set(
      'openPanel',
      Session.get('openPanel') !== ''
        ? ''
        : 'userlist',
    );
    Session.set('idChatOpen', '');
  }

  constructor(props) {
    super(props);

    this.state = {
      time: (props.recordProps.time ? props.recordProps.time : 0),
      amIModerator: props.amIModerator,
    };

    this.incrementTime = this.incrementTime.bind(this);
  }

  componentDidMount() {
    const {
      processOutsideToggleRecording,
      connectRecordingObserver,
    } = this.props;

    if (Meteor.settings.public.allowOutsideCommands.toggleRecording
      || getFromUserSettings('outsideToggleRecording', false)) {
      connectRecordingObserver();
      window.addEventListener('message', processOutsideToggleRecording);
    }
  }

  static getDerivedStateFromProps(nextProps) {
    return { amIModerator: nextProps.amIModerator };
  }

  componentDidUpdate() {
    const {
      recordProps,
    } = this.props;

    if (!recordProps.recording) {
      clearInterval(this.interval);
      this.interval = null;
    } else if (this.interval === null) {
      this.interval = setInterval(this.incrementTime, 1000);
    }
  }

  componentWillUnmount() {
    clearInterval(this.interval);
  }

  incrementTime() {
    const { recordProps } = this.props;
    const { time } = this.state;

    if (recordProps.time > time) {
      this.setState({ time: recordProps.time + 1 });
    } else {
      this.setState({ time: time + 1 });
    }
  }

  render() {
    const {
      hasUnreadMessages,
      recordProps,
      isExpanded,
      intl,
      shortcuts: TOGGLE_USERLIST_AK,
      mountModal,
      isBreakoutRoom,
      presentationTitle,
    } = this.props;

    const recordingMessage = recordProps.recording ? 'recordingIndicatorOn' : 'recordingIndicatorOff';
    const { time, amIModerator } = this.state;
    let recordTitle;

    if (!this.interval) {
      this.interval = setInterval(this.incrementTime, 1000);
    }

    if (!recordProps.recording) {
      recordTitle = recordProps.time >= 0 ? intl.formatMessage(intlMessages.resumeTitle)
        : intl.formatMessage(intlMessages.startTitle);
    } else {
      recordTitle = intl.formatMessage(intlMessages.stopTitle);
    }

    const toggleBtnClasses = {};
    toggleBtnClasses[styles.btn] = true;
    toggleBtnClasses[styles.btnWithNotificationDot] = hasUnreadMessages;

    let ariaLabel = intl.formatMessage(intlMessages.toggleUserListAria);
    ariaLabel += hasUnreadMessages ? (` ${intl.formatMessage(intlMessages.newMessages)}`) : '';

    return (
      <div className={styles.navbar}>
        <div className={styles.left}>
          <Button
            data-test="userListToggleButton"
            onClick={NavBar.handleToggleUserList}
            ghost
            circle
            hideLabel
            label={intl.formatMessage(intlMessages.toggleUserListLabel)}
            aria-label={ariaLabel}
            icon="user"
            className={cx(toggleBtnClasses)}
            aria-expanded={isExpanded}
            accessKey={TOGGLE_USERLIST_AK}
          />
        </div>
        <div className={styles.center}>
          <h1 className={styles.presentationTitle}>{presentationTitle}</h1>
          {recordProps.record
            ? <span className={styles.presentationTitleSeparator} aria-hidden>|</span>
            : null}
          <RecordingIndicator
            {...recordProps}
            title={intl.formatMessage(intlMessages[recordingMessage])}
            buttonTitle={recordTitle}
            mountModal={mountModal}
            time={time}
            amIModerator={amIModerator}
          />
        </div>
        <div className={styles.right}>
          <SettingsDropdownContainer amIModerator={amIModerator} isBreakoutRoom={isBreakoutRoom} />
        </div>
      </div>
    );
  }
}

NavBar.propTypes = propTypes;
NavBar.defaultProps = defaultProps;
export default withShortcutHelper(withModalMounter(injectIntl(NavBar)), 'toggleUserList');