/** @format */
/**
 * External dependencies
 */
import { __ } from '@wordpress/i18n';
import { Button } from '@wordpress/components';
import { Component, Fragment } from '@wordpress/element';
import { compose } from '@wordpress/compose';
import Gridicon from 'gridicons';
import { withDispatch } from '@wordpress/data';

/**
 * Internal dependencies
 */
import { ActivityCard, ActivityCardPlaceholder } from '../activity-card';
import ActivityHeader from '../activity-header';
import { EmptyContent, Section } from '@woocommerce/components';
import sanitizeHTML from 'lib/sanitize-html';
import { QUERY_DEFAULTS } from 'wc-api/constants';
import withSelect from 'wc-api/with-select';

class InboxPanel extends Component {
	constructor( props ) {
		super( props );
		this.mountTime = Date.now();
	}

	componentWillUnmount() {
		const userDataFields = {
			[ 'activity_panel_inbox_last_read' ]: this.mountTime,
		};
		this.props.updateCurrentUserData( userDataFields );
	}

	render() {
		const { isError, isRequesting, lastRead, notes } = this.props;

		if ( isError ) {
			const title = __(
				'There was an error getting your inbox. Please try again.',
				'woocommerce-admin'
			);
			const actionLabel = __( 'Reload', 'woocommerce-admin' );
			const actionCallback = () => {
				// @todo Add tracking for how often an error is displayed, and the reload action is clicked.
				window.location.reload();
			};

			return (
				<Fragment>
					<EmptyContent
						title={ title }
						actionLabel={ actionLabel }
						actionURL={ null }
						actionCallback={ actionCallback }
					/>
				</Fragment>
			);
		}

		const getButtonsFromActions = actions => {
			if ( ! actions ) {
				return [];
			}
			return actions.map( action => (
				<Button isDefault href={ action.url }>
					{ action.label }
				</Button>
			) );
		};

		const notesArray = Object.keys( notes ).map( key => notes[ key ] );

		return (
			<Fragment>
				<ActivityHeader title={ __( 'Inbox', 'woocommerce-admin' ) } />
				<Section>
					{ isRequesting ? (
						<ActivityCardPlaceholder
							className="woocommerce-inbox-activity-card"
							hasAction
							hasDate
							lines={ 2 }
						/>
					) : (
						notesArray.map( note => (
							<ActivityCard
								key={ note.id }
								className="woocommerce-inbox-activity-card"
								title={ note.title }
								date={ note.date_created }
								icon={ <Gridicon icon={ note.icon } size={ 48 } /> }
								unread={ ! lastRead || new Date( note.date_created_gmt ).getTime() > lastRead }
								actions={ getButtonsFromActions( note.actions ) }
							>
								<span dangerouslySetInnerHTML={ sanitizeHTML( note.content ) } />
							</ActivityCard>
						) )
					) }
				</Section>
			</Fragment>
		);
	}
}

export default compose(
	withSelect( select => {
		const { getCurrentUserData, getNotes, getNotesError, isGetNotesRequesting } = select(
			'wc-api'
		);
		const userData = getCurrentUserData();
		const inboxQuery = {
			page: 1,
			per_page: QUERY_DEFAULTS.pageSize,
			type: 'info,warning',
			orderby: 'date',
			order: 'desc',
		};

		const notes = getNotes( inboxQuery );
		const isError = Boolean( getNotesError( inboxQuery ) );
		const isRequesting = isGetNotesRequesting( inboxQuery );

		return { notes, isError, isRequesting, lastRead: userData.activity_panel_inbox_last_read };
	} ),
	withDispatch( dispatch => {
		const { updateCurrentUserData } = dispatch( 'wc-api' );

		return {
			updateCurrentUserData,
		};
	} )
)( InboxPanel );