<?php
/**
 * Local SEO: business details, opening hours and LocalBusiness schema.
 *
 * @package OrbitstemSEO
 */

namespace Orbitstem\SEO\Schema;

use Orbitstem\SEO\Core\Settings;

defined( 'ABSPATH' ) || exit;

/**
 * Stored in the "local" settings group. When switched on, the front page's
 * schema gets a LocalBusiness node (address, phone, hours, location), and the
 * [orbitstem_business] shortcode shows the same details to visitors.
 */
class LocalBusiness {

	const DAYS = array( 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday' );

	/**
	 * Settings.
	 *
	 * @var Settings
	 */
	private $settings;

	/**
	 * Constructor.
	 *
	 * @param Settings $settings Settings.
	 */
	public function __construct( Settings $settings ) {
		$this->settings = $settings;
	}

	/**
	 * Registers the shortcode.
	 */
	public function register() {
		add_shortcode( 'orbitstem_business', array( $this, 'shortcode' ) );
	}

	/**
	 * Business types offered in Settings (schema.org LocalBusiness subtypes).
	 *
	 * @return array<string,string>
	 */
	public static function types() {
		return array(
			'LocalBusiness'               => __( 'Local business (general)', 'orbitstem-seo' ),
			'Store'                       => __( 'Shop or store', 'orbitstem-seo' ),
			'Restaurant'                  => __( 'Restaurant', 'orbitstem-seo' ),
			'CafeOrCoffeeShop'            => __( 'Café', 'orbitstem-seo' ),
			'BarOrPub'                    => __( 'Bar or pub', 'orbitstem-seo' ),
			'Bakery'                      => __( 'Bakery', 'orbitstem-seo' ),
			'BeautySalon'                 => __( 'Beauty salon', 'orbitstem-seo' ),
			'HairSalon'                   => __( 'Hair salon', 'orbitstem-seo' ),
			'HealthAndBeautyBusiness'     => __( 'Health and beauty', 'orbitstem-seo' ),
			'Dentist'                     => __( 'Dentist', 'orbitstem-seo' ),
			'MedicalClinic'               => __( 'Medical clinic', 'orbitstem-seo' ),
			'Physician'                   => __( 'Doctor', 'orbitstem-seo' ),
			'LegalService'                => __( 'Lawyer or legal service', 'orbitstem-seo' ),
			'AccountingService'           => __( 'Accountant', 'orbitstem-seo' ),
			'RealEstateAgent'             => __( 'Real estate agent', 'orbitstem-seo' ),
			'AutoRepair'                  => __( 'Car repair', 'orbitstem-seo' ),
			'HomeAndConstructionBusiness' => __( 'Builder, plumber or electrician', 'orbitstem-seo' ),
			'LodgingBusiness'             => __( 'Hotel or lodging', 'orbitstem-seo' ),
			'ExerciseGym'                 => __( 'Gym', 'orbitstem-seo' ),
			'ProfessionalService'         => __( 'Agency or professional service', 'orbitstem-seo' ),
			'EducationalOrganization'     => __( 'School or training centre', 'orbitstem-seo' ),
		);
	}

	/**
	 * Default "local" settings group.
	 *
	 * @return array
	 */
	public static function defaults() {
		return array(
			'enabled'     => false,
			'type'        => 'LocalBusiness',
			'name'        => '',
			'phone'       => '',
			'email'       => '',
			'street'      => '',
			'city'        => '',
			'region'      => '',
			'postal'      => '',
			'country'     => '',
			'lat'         => '',
			'lng'         => '',
			'price_range' => '',
			'hours'       => array(),
		);
	}

	/**
	 * Cleans the "local" settings group.
	 *
	 * @param mixed $input Raw.
	 * @return array
	 */
	public static function sanitize( $input ) {
		$input = is_array( $input ) ? $input : array();
		$clean = self::defaults();
		foreach ( array( 'name', 'phone', 'street', 'city', 'region', 'postal', 'price_range' ) as $key ) {
			$clean[ $key ] = isset( $input[ $key ] ) ? mb_substr( Settings::sanitize_text( $input[ $key ] ), 0, 200 ) : '';
		}
		$clean['enabled'] = ! empty( $input['enabled'] );
		$clean['type']    = isset( $input['type'] ) && isset( self::types()[ $input['type'] ] ) ? $input['type'] : 'LocalBusiness';
		$clean['email']   = isset( $input['email'] ) ? (string) sanitize_email( $input['email'] ) : '';
		$clean['country'] = isset( $input['country'] ) ? strtoupper( substr( preg_replace( '/[^A-Za-z]/', '', (string) $input['country'] ), 0, 2 ) ) : '';
		foreach ( array(
			'lat' => 90,
			'lng' => 180,
		) as $key => $max ) {
			$value         = isset( $input[ $key ] ) ? trim( (string) $input[ $key ] ) : '';
			$clean[ $key ] = is_numeric( $value ) && abs( (float) $value ) <= $max ? (string) round( (float) $value, 6 ) : '';
		}
		$hours = isset( $input['hours'] ) && is_array( $input['hours'] ) ? $input['hours'] : array();
		foreach ( self::DAYS as $day ) {
			$row   = isset( $hours[ $day ] ) && is_array( $hours[ $day ] ) ? $hours[ $day ] : array();
			$ok    = function ( $time ) {
				return is_string( $time ) && preg_match( '/^([01]\d|2[0-3]):[0-5]\d$/', $time ) ? $time : '';
			};
			$open  = $ok( isset( $row['open'] ) ? $row['open'] : '' );
			$close = $ok( isset( $row['close'] ) ? $row['close'] : '' );
			if ( '' !== $open && '' !== $close ) {
				$clean['hours'][ $day ] = array(
					'open'  => $open,
					'close' => $close,
				);
			}
		}
		return $clean;
	}

	/**
	 * Current details.
	 *
	 * @return array
	 */
	public function details() {
		$stored = $this->settings->get( 'local' );
		return array_merge( self::defaults(), is_array( $stored ) ? $stored : array() );
	}

	/**
	 * What is still missing for a useful listing, in plain words.
	 *
	 * @return string[]
	 */
	public function missing() {
		$d   = $this->details();
		$out = array();
		if ( '' === $d['street'] || '' === $d['city'] || '' === $d['country'] ) {
			$out[] = __( 'Add the street, city and country so search engines can show where you are.', 'orbitstem-seo' );
		}
		if ( '' === $d['phone'] ) {
			$out[] = __( 'Add a phone number; it can appear as a call button in search results.', 'orbitstem-seo' );
		}
		if ( ! $d['hours'] ) {
			$out[] = __( 'Add opening hours so searchers know when you are open.', 'orbitstem-seo' );
		}
		return $out;
	}

	/**
	 * LocalBusiness node for the front page, or null when off.
	 *
	 * @param string $publisher_id Organization or Person @id.
	 * @param string $logo         Logo URL ('' when none).
	 * @return array|null
	 */
	public function node( $publisher_id, $logo ) {
		$d = $this->details();
		if ( ! $d['enabled'] ) {
			return null;
		}
		$home = home_url( '/' );
		$node = array(
			'@type' => $d['type'],
			'@id'   => $home . '#localbusiness',
			// The stored site name is HTML-escaped ("Tom &amp; Jerry&#039;s"); schema wants plain text.
			'name'  => '' !== $d['name'] ? $d['name'] : \Orbitstem\SEO\Content\TemplateEngine::plain( get_bloginfo( 'name' ) ),
			'url'   => $home,
		);
		if ( '' !== $logo ) {
			$node['image'] = $logo;
		}
		if ( '#organization' === substr( $publisher_id, -13 ) ) {
			$node['parentOrganization'] = array( '@id' => $publisher_id );
		}
		$address = array_filter(
			array(
				'@type'           => 'PostalAddress',
				'streetAddress'   => $d['street'],
				'addressLocality' => $d['city'],
				'addressRegion'   => $d['region'],
				'postalCode'      => $d['postal'],
				'addressCountry'  => $d['country'],
			)
		);
		if ( count( $address ) > 1 ) {
			$node['address'] = $address;
		}
		foreach ( array(
			'phone'       => 'telephone',
			'email'       => 'email',
			'price_range' => 'priceRange',
		) as $key => $prop ) {
			if ( '' !== $d[ $key ] ) {
				$node[ $prop ] = $d[ $key ];
			}
		}
		if ( '' !== $d['lat'] && '' !== $d['lng'] ) {
			$node['geo'] = array(
				'@type'     => 'GeoCoordinates',
				'latitude'  => (float) $d['lat'],
				'longitude' => (float) $d['lng'],
			);
		}
		foreach ( $d['hours'] as $day => $times ) {
			$node['openingHoursSpecification'][] = array(
				'@type'     => 'OpeningHoursSpecification',
				'dayOfWeek' => 'https://schema.org/' . $day,
				'opens'     => $times['open'],
				'closes'    => $times['close'],
			);
		}
		return $node;
	}

	/**
	 * [orbitstem_business]: address, phone, email and hours for visitors.
	 *
	 * @return string
	 */
	public function shortcode() {
		$d = $this->details();
		if ( ! $d['enabled'] ) {
			return '';
		}
		$lines = array_filter( array( $d['street'], trim( $d['postal'] . ' ' . $d['city'] ), $d['region'], $d['country'] ) );
		$out   = '<div class="orbitstem-business">';
		$out  .= '<p class="orbitstem-business__name"><strong>' . esc_html( '' !== $d['name'] ? $d['name'] : \Orbitstem\SEO\Content\TemplateEngine::plain( get_bloginfo( 'name' ) ) ) . '</strong></p>';
		if ( $lines ) {
			$out .= '<p class="orbitstem-business__address">' . implode( '<br />', array_map( 'esc_html', $lines ) ) . '</p>';
			// A plain link: nothing is loaded from the map service unless a visitor clicks it.
			$query = '' !== $d['lat'] && '' !== $d['lng'] ? $d['lat'] . ',' . $d['lng'] : implode( ', ', $lines );
			$out  .= '<p><a href="' . esc_url( 'https://www.google.com/maps/search/?api=1&query=' . rawurlencode( $query ) ) . '" rel="noopener" target="_blank">' . esc_html__( 'Get directions', 'orbitstem-seo' ) . '</a></p>';
		}
		if ( '' !== $d['phone'] ) {
			$out .= '<p><a href="' . esc_url( 'tel:' . preg_replace( '/[^0-9+]/', '', $d['phone'] ) ) . '">' . esc_html( $d['phone'] ) . '</a></p>';
		}
		if ( '' !== $d['email'] ) {
			$out .= '<p><a href="' . esc_url( 'mailto:' . $d['email'] ) . '">' . esc_html( $d['email'] ) . '</a></p>';
		}
		if ( $d['hours'] ) {
			$out .= '<table class="orbitstem-business__hours"><tbody>';
			foreach ( self::DAYS as $day ) {
				$label = date_i18n( 'l', strtotime( 'next ' . $day ) );
				$times = isset( $d['hours'][ $day ] ) ? $d['hours'][ $day ]['open'] . ' – ' . $d['hours'][ $day ]['close'] : __( 'Closed', 'orbitstem-seo' );
				$out  .= '<tr><th scope="row">' . esc_html( $label ) . '</th><td>' . esc_html( $times ) . '</td></tr>';
			}
			$out .= '</tbody></table>';
		}
		return $out . '</div>';
	}
}