/** @format */
/**
 * External dependencies
 */
import { __ } from '@wordpress/i18n';
import { Component, Fragment } from '@wordpress/element';
import { IconButton, Button, Dashicon } from '@wordpress/components';
import classnames from 'classnames';

/**
 * WooCommerce dependencies
 */
import { Card } from '@woocommerce/components';

import './style.scss';

const dummy = [
	{
		title: 'Lorem ipsum dolor sit amet',
		type: 'alert',
		message:
			'Pellentesque accumsan ligula in aliquam tristique. Donec elementum magna ut sapien tincidunt aliquam.',
		action: {
			label: 'Button',
			url: '#',
		},
	},
	{
		title: 'Sed bibendum non augue tincidunt mollis',
		type: 'critical',
		message: 'Quisque in efficitur nisi. In hac habitasse platea dictumst. Vivamus ut congue diam.',
		action: {
			label: 'Button',
			url: '#',
		},
	},
	{
		title: 'Duis dictum condimentum sem eu blandit',
		type: 'emergency',
		message: 'Fusce fermentum magna dolor, vitae faucibus justo ullamcorper eu.',
		action: {
			label: 'Button',
			url: '#',
		},
	},
];

const alertTypes = {
	emergency: {
		label: __( 'Emergency', 'wc-admin' ),
		icon: 'warning',
	},
	alert: {
		label: __( 'Alert', 'wc-admin' ),
		icon: 'flag',
	},
	critical: {
		label: __( 'Critical', 'wc-admin' ),
		icon: 'info',
	},
};

class StoreAlerts extends Component {
	constructor( props ) {
		super( props );
		this.state = {
			currentAlert: 0,
		};

		this.previousAlert = this.previousAlert.bind( this );
		this.nextAlert = this.nextAlert.bind( this );
		this.totalAlerts = this.totalAlerts.bind( this );
	}

	totalAlerts() {
		return dummy.length;
	}

	previousAlert( event ) {
		event.stopPropagation();
		const { currentAlert } = this.state;

		if ( currentAlert > 0 ) {
			this.setState( {
				currentAlert: currentAlert - 1,
			} );
		}
	}

	nextAlert( event ) {
		event.stopPropagation();
		const { currentAlert } = this.state;

		if ( currentAlert < this.totalAlerts() - 1 ) {
			this.setState( {
				currentAlert: currentAlert + 1,
			} );
		}
	}

	render() {
		const { currentAlert } = this.state;
		const alert = dummy[ currentAlert ] ? dummy[ currentAlert ] : null;
		const type = alertTypes[ alert.type ] ? alertTypes[ alert.type ] : null;
		const className = classnames( 'woocommerce-store-alerts', {
			'is-alert-emergency': type && 'emergency' === alert.type,
			'is-alert-alert': type && 'alert' === alert.type,
			'is-alert-critical': type && 'critical' === alert.type,
		} );

		return (
			<Card
				title={ [
					type && <Dashicon key="icon" icon={ type.icon } />,
					<Fragment key="title">{ alert.title }</Fragment>,
				] }
				className={ className }
				action={
					this.totalAlerts() > 1 && (
						<div className="woocommerce-store-alerts__pagination">
							<IconButton
								icon="arrow-left-alt2"
								onClick={ this.previousAlert }
								disabled={ 0 === currentAlert }
								label={ __( 'Previous Alert', 'wc-admin' ) }
							/>
							<span
								className="woocommerce-store-alerts__pagination-label"
								role="status"
								aria-live="polite"
							>
								{ currentAlert + 1 } { __( 'of', 'wc-admin' ) } { this.totalAlerts() }
							</span>
							<IconButton
								icon="arrow-right-alt2"
								onClick={ this.nextAlert }
								disabled={ this.totalAlerts() - 1 === currentAlert }
								label={ __( 'Next Alert', 'wc-admin' ) }
							/>
						</div>
					)
				}
			>
				<div className="woocommerce-store-alerts__message">{ alert.message }</div>
				<Button isPrimary className="woocommerce-store-alerts__button" href={ alert.action.url }>
					{ alert.action.label }
				</Button>
			</Card>
		);
	}
}

export default StoreAlerts;