const cx = require('classnames');
const React = require('react');
const _ = require('lodash');

const {AnalyticsAPI} = require('../../analytics');

const {NotificationView} = require('../../NotificationView');
const {notificationStore} = require('./notificationStore');
const {NotificationActions} = require('./NotificationActions');

/**
 * Notifications
 * @property blob
 */
class Notifications extends React.Component {
    constructor(props) {
        super();
        this.state = {
            unreadCount: 0,
            unseenCount: 0,
            notifications: [],
        }
        this.onStatusChange = this.onStatusChange.bind(this);
        this._handleSeen = this._handleSeen.bind(this);
        this._handleItemClick = this._handleItemClick.bind(this);
        this._handleItemDismiss = this._handleItemDismiss.bind(this);
    }

    componentDidMount() {
        this.unsubscribe = notificationStore.listen(this.onStatusChange);
    }

    componentWillUnmount() {
        this.unsubscribe();
    }

    onStatusChange(bundle) {
        console.log(
            "[Notifications] Received new state from Store: " +
            `${bundle.unseenCount}/${bundle.unreadCount}/${bundle.notifications.length}`);
        this.setState({
            unreadCount: bundle.unreadCount,
            unseenCount: bundle.unseenCount,
            notifications: bundle.notifications,
        });
    }

    _handleItemClick(event, id) {
      const notification = _.find(this.state.notifications, {id: id});
      console.log("[Notifications] Clicked on notification:", notification);
      AnalyticsAPI.track('clicked-notification-item');
      if (notification.message_hyperlink !== undefined) {
        window.open(notification.message_hyperlink, '_blank');
      }
    }

    _handleItemDismiss(event, id) {
      console.log("[Notifications] Dismissed notification:", id);
      NotificationActions.markRead([id]);
    }

    _handleSeen() {
      console.log("[Notifications] Seen all!");
      NotificationActions.markSeen(true);
    }

    render() {
      return (<NotificationView
        unseenCount={this.state.unseenCount}
        notifications={this.state.notifications}
        handleSeen={this._handleSeen}
        handleItemClick={this._handleItemClick}
        handleItemDismiss={this._handleItemDismiss} /> );
    }
}

module.exports = {Notifications}