<?php
/**
 * "Property" post type + types taxonomy + meta boxes.
 */

defined( 'ABSPATH' ) || exit;

class ETHEBO_Post_Type {

	const PT  = 'ethebo_property';
	const TAX = 'ethebo_type';

	public static function init() {
		add_action( 'init', array( __CLASS__, 'register' ) );
		add_action( 'init', array( __CLASS__, 'maybe_flush' ), 99 );
		add_action( 'template_redirect', array( __CLASS__, 'redirect_old_slugs' ), 1 );
		add_action( 'add_meta_boxes_' . self::PT, array( __CLASS__, 'meta_boxes' ) );
		add_action( 'save_post_' . self::PT, array( __CLASS__, 'save' ), 10, 2 );
		add_action( 'before_delete_post', array( __CLASS__, 'on_delete' ) );
		add_filter( 'use_block_editor_for_post_type', array( __CLASS__, 'classic_editor' ), 10, 2 );
		add_filter( 'manage_' . self::PT . '_posts_columns', array( __CLASS__, 'columns' ) );
		add_action( 'manage_' . self::PT . '_posts_custom_column', array( __CLASS__, 'column' ), 10, 2 );
	}

	public static function register() {
		list( $slug, $tax_slug ) = ethebo_slugs();

		register_post_type( self::PT, array(
			'labels'        => array(
				'name'               => ethebo__( 'Properties' ),
				'singular_name'      => ethebo__( 'Property' ),
				'menu_name'          => ethebo__( 'Accommodation' ),
				'all_items'          => ethebo__( 'All properties' ),
				'add_new'            => ethebo__( 'Add property' ),
				'add_new_item'       => ethebo__( 'Add new property' ),
				'edit_item'          => ethebo__( 'Edit property' ),
				'new_item'           => ethebo__( 'New property' ),
				'view_item'          => ethebo__( 'View property' ),
				'search_items'       => ethebo__( 'Search properties' ),
				'not_found'          => ethebo__( 'No properties found' ),
				'not_found_in_trash' => ethebo__( 'No properties in trash' ),
				'featured_image'     => ethebo__( 'Main photo' ),
				'set_featured_image' => ethebo__( 'Set main photo' ),
			),
			'public'        => true,
			'has_archive'   => true,
			'menu_icon'     => 'dashicons-building',
			'menu_position' => 25,
			'supports'      => array( 'title', 'editor', 'thumbnail', 'excerpt' ),
			'rewrite'       => array( 'slug' => $slug ),
			'show_in_rest'  => true,
		) );

		register_taxonomy( self::TAX, self::PT, array(
			'labels'            => array(
				'name'          => ethebo__( 'Types' ),
				'singular_name' => ethebo__( 'Type' ),
				'add_new_item'  => ethebo__( 'Add new type' ),
				'edit_item'     => ethebo__( 'Edit type' ),
				'all_items'     => ethebo__( 'All types' ),
			),
			'hierarchical'      => true,
			'show_admin_column' => true,
			'show_in_rest'      => true,
			'rewrite'           => array( 'slug' => $tax_slug ),
		) );
	}

	/**
	 * The URL slugs depend on the language. Whenever they differ from the ones WordPress
	 * last saved (language change, plugin update…), rebuild the rewrite rules once.
	 */
	public static function maybe_flush() {
		$slugs = implode( '|', ethebo_slugs() );
		if ( get_option( 'ethebo_flush_rewrite' ) || get_option( 'ethebo_rewrite_slugs' ) !== $slugs ) {
			delete_option( 'ethebo_flush_rewrite' );
			update_option( 'ethebo_rewrite_slugs', $slugs );
			flush_rewrite_rules( false );
		}
	}

	/** Old links (e.g. /akomodim/room-1/ after switching to English) redirect to the current slug. */
	public static function redirect_old_slugs() {
		if ( ! is_404() ) {
			return;
		}
		$path  = trim( (string) wp_parse_url( isset( $_SERVER['REQUEST_URI'] ) ? esc_url_raw( wp_unslash( $_SERVER['REQUEST_URI'] ) ) : '', PHP_URL_PATH ), '/' );
		$home  = trim( (string) wp_parse_url( home_url(), PHP_URL_PATH ), '/' );
		$path  = $home && 0 === strpos( $path, $home . '/' ) ? substr( $path, strlen( $home ) + 1 ) : $path;
		$parts = explode( '/', $path, 2 );
		list( $slug, $tax_slug ) = ethebo_slugs();

		foreach ( ethebo_slugs( true ) as $old ) {
			$map = array( $old[0] => $slug, $old[1] => $tax_slug );
			if ( isset( $map[ $parts[0] ] ) && $map[ $parts[0] ] !== $parts[0] ) {
				// "type"/"tipo" are common words, so only redirect taxonomy paths that really exist.
				if ( $old[1] === $parts[0] && ( empty( $parts[1] ) || ! get_term_by( 'slug', strtok( $parts[1], '/' ), self::TAX ) ) ) {
					continue;
				}
				wp_safe_redirect( user_trailingslashit( home_url( '/' . $map[ $parts[0] ] . ( isset( $parts[1] ) ? '/' . $parts[1] : '' ) ) ), 301 );
				exit;
			}
		}
	}

	public static function meta_boxes() {
		add_meta_box( 'ethebo_details', ethebo__( 'Details & price' ), array( __CLASS__, 'details_box' ), self::PT, 'normal', 'high' );
		add_meta_box( 'ethebo_gallery', ethebo__( 'Photo gallery' ), array( __CLASS__, 'gallery_box' ), self::PT, 'normal', 'high' );
		add_meta_box( 'ethebo_sync', ethebo__( 'Sync with Booking.com / Airbnb' ), array( __CLASS__, 'sync_box' ), self::PT, 'normal', 'default' );
		add_meta_box( 'ethebo_upcoming', ethebo__( 'Upcoming bookings' ), array( __CLASS__, 'upcoming_box' ), self::PT, 'side', 'default' );
	}

	public static function details_box( $post ) {
		wp_nonce_field( 'ethebo_save_property', 'ethebo_nonce' );
		$fields = array(
			// label, min, step, default
			'price'      => array( sprintf( ethebo__( 'Price per night (%s)' ), ethebo_opt( 'currency' ) ), 0, '0.01', '' ),
			'max_guests' => array( ethebo__( 'Max guests' ), 1, '1', 2 ),
			'min_nights' => array( ethebo__( 'Minimum nights' ), 1, '1', 1 ),
			'bedrooms'   => array( ethebo__( 'Bedrooms' ), 0, '1', '' ),
			'bathrooms'  => array( ethebo__( 'Bathrooms' ), 0, '1', '' ),
		);
		echo '<div class="ethebo-fields">';
		foreach ( $fields as $key => $f ) {
			printf(
				'<p><label for="ethebo_%1$s">%2$s</label><input type="number" id="ethebo_%1$s" name="ethebo[%1$s]" value="%3$s" min="%4$s" step="%5$s"></p>',
				esc_attr( $key ),
				esc_html( $f[0] ),
				esc_attr( ethebo_meta( $post->ID, $key, $f[3] ) ),
				esc_attr( $f[1] ),
				esc_attr( $f[2] )
			);
		}
		echo '</div>';
		echo '<p class="description">' . esc_html( ethebo__( 'For a hotel: create each room as a separate property (e.g. "Hotel X – Double Room 101"), so each one has its own calendar.' ) ) . '</p>';
	}

	/** Attachment IDs of the property gallery, in the chosen order. */
	public static function gallery_ids( $post_id ) {
		return array_values( array_filter( array_map( 'absint', explode( ',', (string) get_post_meta( $post_id, '_ethebo_gallery', true ) ) ) ) );
	}

	public static function gallery_box( $post ) {
		$ids = self::gallery_ids( $post->ID );
		?>
		<div class="ethebo-gal-admin" data-title="<?php echo esc_attr( ethebo__( 'Choose photos' ) ); ?>" data-button="<?php echo esc_attr( ethebo__( 'Add to gallery' ) ); ?>" data-remove="<?php echo esc_attr( ethebo__( 'Remove' ) ); ?>">
			<input type="hidden" name="ethebo[gallery]" class="ethebo-gal-input" value="<?php echo esc_attr( implode( ',', $ids ) ); ?>">
			<ul class="ethebo-gal-list">
				<?php foreach ( $ids as $id ) : ?>
					<?php $thumb = wp_get_attachment_image_url( $id, 'thumbnail' ); ?>
					<?php if ( $thumb ) : ?>
						<li data-id="<?php echo esc_attr( $id ); ?>">
							<img src="<?php echo esc_url( $thumb ); ?>" alt="">
							<button type="button" class="ethebo-gal-remove" aria-label="<?php echo esc_attr( ethebo__( 'Remove' ) ); ?>">×</button>
						</li>
					<?php endif; ?>
				<?php endforeach; ?>
			</ul>
			<p>
				<button type="button" class="button button-secondary ethebo-gal-add">+ <?php ethebo_e( 'Add photos' ); ?></button>
			</p>
			<p class="description"><?php ethebo_e( 'Drag photos to change the order. The main photo (right column) is always shown first.' ); ?></p>
		</div>
		<?php
	}

	public static function sync_box( $post ) {
		$saved = 'auto-draft' !== $post->post_status;
		$feeds = array(
			'booking' => array(
				'label'       => 'Booking.com',
				'placeholder' => 'https://ical.booking.com/v1/export?t=...',
				'help'        => ethebo__( 'Booking.com Extranet → <em>Rates & Availability</em> → <em>Sync calendars</em> → choose the room → <em>Export calendar</em> → copy the link.' ),
			),
			'airbnb'  => array(
				'label'       => 'Airbnb',
				'placeholder' => 'https://www.airbnb.com/calendar/ical/123456.ics?s=...',
				'help'        => ethebo__( 'Airbnb → <em>Listings</em> → choose the listing → <em>Availability</em> → <em>Connect calendars</em> → <em>Export calendar</em> → copy the link.' ),
			),
		);
		?>
		<div class="ethebo-sync" data-post="<?php echo esc_attr( $post->ID ); ?>">

			<div class="ethebo-step">
				<div class="ethebo-step-num">1</div>
				<div class="ethebo-step-body">
					<h4><?php ethebo_e( 'Get bookings from Booking.com / Airbnb' ); ?></h4>
					<p class="description"><?php ethebo_e( 'Paste the iCal link of the platform. The link is checked right away and dates booked there are blocked here.' ); ?></p>

					<?php foreach ( $feeds as $key => $f ) : ?>
						<div class="ethebo-feed">
							<label for="ethebo_ical_<?php echo esc_attr( $key ); ?>"><span class="ethebo-badge ethebo-src-<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $f['label'] ); ?></span> <?php ethebo_e( 'iCal link' ); ?></label>
							<div class="ethebo-feed-row">
								<input type="url" class="ethebo-feed-input" id="ethebo_ical_<?php echo esc_attr( $key ); ?>" name="ethebo[ical_<?php echo esc_attr( $key ); ?>]" value="<?php echo esc_attr( ethebo_meta( $post->ID, 'ical_' . $key ) ); ?>" placeholder="<?php echo esc_attr( $f['placeholder'] ); ?>">
								<button type="button" class="button ethebo-test-btn"><?php ethebo_e( 'Test link' ); ?></button>
							</div>
							<div class="ethebo-feed-status" aria-live="polite"></div>
							<details class="ethebo-help"><summary><?php ethebo_e( 'Where do I find this link?' ); ?></summary><p><?php echo wp_kses_post( $f['help'] ); ?></p></details>
						</div>
					<?php endforeach; ?>

					<div class="ethebo-feed">
						<label for="ethebo_ical_other"><?php ethebo_e( 'Other calendars (VRBO, Google, etc.) – one link per line' ); ?></label>
						<textarea class="widefat" rows="2" id="ethebo_ical_other" name="ethebo[ical_other]"><?php echo esc_textarea( ethebo_meta( $post->ID, 'ical_other' ) ); ?></textarea>
					</div>
				</div>
			</div>

			<div class="ethebo-step">
				<div class="ethebo-step-num">2</div>
				<div class="ethebo-step-body">
					<h4><?php ethebo_e( 'Send your website bookings to Booking.com / Airbnb' ); ?></h4>
					<?php if ( $saved ) : ?>
						<p class="description"><?php echo wp_kses_post( ethebo__( 'Copy the matching link and paste it in the platform under <em>Import calendar</em> (same place where you got the link in step 1).' ) ); ?></p>
						<?php foreach ( ETHEBO_iCal::export_channels() as $ch => $label ) : ?>
							<?php $url = ETHEBO_iCal::export_url( $post->ID, $ch ); ?>
							<div class="ethebo-copy">
								<label><?php echo esc_html( $ch ? sprintf( ethebo__( 'For %s' ), $label ) : $label ); ?></label>
								<input type="text" readonly value="<?php echo esc_attr( $url ); ?>" class="ethebo-select-all">
								<button type="button" class="button ethebo-copy-btn" data-copy="<?php echo esc_attr( $url ); ?>"><?php ethebo_e( 'Copy' ); ?></button>
							</div>
						<?php endforeach; ?>
						<div class="ethebo-export-check" data-post="<?php echo esc_attr( $post->ID ); ?>"></div>
						<div class="ethebo-export-status"><?php ETHEBO_Calendar::export_status( $post->ID ); ?></div>
						<?php self::export_preview( $post->ID ); ?>
					<?php else : ?>
						<p class="description"><?php echo wp_kses_post( ethebo__( 'Click <strong>Publish</strong> / <strong>Save</strong> once and the links for Booking.com and Airbnb will appear here.' ) ); ?></p>
					<?php endif; ?>
				</div>
			</div>

			<?php if ( $saved ) : ?>
				<div class="ethebo-step">
					<div class="ethebo-step-num">3</div>
					<div class="ethebo-step-body">
						<h4><?php ethebo_e( 'Sync status' ); ?></h4>
						<div class="ethebo-status-panel"><?php ETHEBO_Calendar::import_status( $post->ID ); ?></div>
						<p>
							<button type="button" class="button button-primary ethebo-sync-btn" data-post="<?php echo esc_attr( $post->ID ); ?>">↻ <?php ethebo_e( 'Sync now' ); ?></button>
							<span class="ethebo-sync-msg" aria-live="polite"></span>
						</p>
						<p class="description"><?php echo esc_html( sprintf( ethebo__( 'Syncs automatically (%s), when you save the property, when a visitor opens the calendar and right before every website booking.' ), strtolower( ethebo_sync_intervals()[ ethebo_opt( 'sync_interval' ) ] ?? '' ) ) ); ?></p>
					</div>
				</div>
			<?php endif; ?>
		</div>
		<?php
	}

	/** Shows the dates currently in the export link, so nobody has to download the .ics file. */
	private static function export_preview( $post_id ) {
		$rows  = ETHEBO_Bookings::for_export( $post_id );
		$today = current_time( 'Y-m-d' );
		$rows  = array_filter( $rows, function ( $r ) use ( $today ) {
			return $r->check_out > $today;
		} );
		?>
		<details class="ethebo-help ethebo-export-preview" open>
			<summary><?php echo esc_html( sprintf( ethebo__( 'What is being sent to the platforms now (%d booked periods)' ), count( $rows ) ) ); ?></summary>
			<?php if ( ! $rows ) : ?>
				<p><?php ethebo_e( 'No booked dates in the future. Add a booking or block and it will show here.' ); ?></p>
			<?php else : ?>
				<ul class="ethebo-status-list">
					<?php foreach ( $rows as $r ) : ?>
						<li class="ok">
							<?php echo esc_html( ethebo_format_date( $r->check_in ) . ' → ' . ethebo_format_date( $r->check_out ) ); ?>
							<span class="ethebo-muted">· <?php echo esc_html( ethebo_source_label( $r->source ) . ' · ' . ( ethebo_statuses()[ $r->status ] ?? $r->status ) ); ?></span>
						</li>
					<?php endforeach; ?>
				</ul>
				<p><?php ethebo_e( 'The "For Booking.com" link does not send dates that came from Booking.com, and the "For Airbnb" link does not send those from Airbnb, so they are not sent back to their own platform.' ); ?></p>
			<?php endif; ?>
		</details>
		<?php
	}

	public static function upcoming_box( $post ) {
		$rows = ETHEBO_Bookings::query( array( 'property_id' => $post->ID, 'upcoming' => true, 'limit' => 6 ) );
		$rows = array_filter( $rows, function ( $r ) {
			return 'cancelled' !== $r->status;
		} );
		if ( ! $rows ) {
			echo '<p>' . esc_html( ethebo__( 'No upcoming bookings.' ) ) . '</p>';
		} else {
			echo '<ul class="ethebo-mini-list">';
			foreach ( $rows as $r ) {
				printf(
					'<li><span class="ethebo-badge ethebo-src-%s">%s</span> %s → %s<br><small>%s</small></li>',
					esc_attr( sanitize_html_class( $r->source ) ),
					esc_html( ethebo_source_label( $r->source ) ),
					esc_html( ethebo_format_date( $r->check_in ) ),
					esc_html( ethebo_format_date( $r->check_out ) ),
					esc_html( $r->guest_name )
				);
			}
			echo '</ul>';
		}
		printf(
			'<p><a href="%s">%s →</a></p>',
			esc_url( admin_url( 'edit.php?post_type=' . self::PT . '&page=ethebo-bookings&property=' . $post->ID ) ),
			esc_html( ethebo__( 'All bookings' ) )
		);
	}

	public static function save( $post_id, $post ) {
		if ( ! isset( $_POST['ethebo_nonce'] ) || ! wp_verify_nonce( sanitize_key( $_POST['ethebo_nonce'] ), 'ethebo_save_property' ) ) {
			return;
		}
		if ( ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) || ! current_user_can( 'edit_post', $post_id ) ) {
			return;
		}

		$in = isset( $_POST['ethebo'] ) ? map_deep( wp_unslash( (array) $_POST['ethebo'] ), 'sanitize_textarea_field' ) : array();

		update_post_meta( $post_id, '_ethebo_price', max( 0, round( (float) ( $in['price'] ?? 0 ), 2 ) ) );
		update_post_meta( $post_id, '_ethebo_max_guests', max( 1, absint( $in['max_guests'] ?? 1 ) ) );
		wp_cache_delete( 'ethebo_max_guests', 'ethebo' ); // The guests filter of the search reads the new maximum.
		update_post_meta( $post_id, '_ethebo_min_nights', max( 1, absint( $in['min_nights'] ?? 1 ) ) );
		update_post_meta( $post_id, '_ethebo_bedrooms', '' === ( $in['bedrooms'] ?? '' ) ? '' : absint( $in['bedrooms'] ) );
		update_post_meta( $post_id, '_ethebo_bathrooms', '' === ( $in['bathrooms'] ?? '' ) ? '' : absint( $in['bathrooms'] ) );

		if ( isset( $in['gallery'] ) ) {
			$gallery = array_unique( array_filter( array_map( 'absint', explode( ',', (string) $in['gallery'] ) ), 'wp_attachment_is_image' ) );
			update_post_meta( $post_id, '_ethebo_gallery', implode( ',', $gallery ) );
		}

		$old_feeds = ETHEBO_iCal::feeds( $post_id );

		update_post_meta( $post_id, '_ethebo_ical_booking', self::clean_url( $in['ical_booking'] ?? '' ) );
		update_post_meta( $post_id, '_ethebo_ical_airbnb', self::clean_url( $in['ical_airbnb'] ?? '' ) );
		$other = array_filter( array_map( array( __CLASS__, 'clean_url' ), preg_split( '/\s+/', (string) ( $in['ical_other'] ?? '' ) ) ) );
		update_post_meta( $post_id, '_ethebo_ical_other', implode( "\n", array_unique( $other ) ) );

		ETHEBO_iCal::token( $post_id );

		// Links changed (or never synced): sync right away.
		$feeds = ETHEBO_iCal::feeds( $post_id );
		if ( $feeds !== $old_feeds || ( $feeds && ! get_post_meta( $post_id, '_ethebo_last_sync', true ) ) ) {
			delete_transient( 'ethebo_sync_lock_' . $post_id );
			ETHEBO_iCal::sync_property( $post_id );
		}
	}

	/** Classic editor for properties: simpler, and meta boxes save/refresh immediately. */
	public static function classic_editor( $use, $post_type ) {
		return self::PT === $post_type ? false : $use;
	}

	public static function clean_url( $url ) {
		$url = trim( (string) $url );
		$url = preg_replace( '#^webcals?://#i', 'https://', $url );
		return esc_url_raw( $url, array( 'http', 'https' ) );
	}

	public static function on_delete( $post_id ) {
		if ( self::PT === get_post_type( $post_id ) ) {
			ETHEBO_Bookings::delete_for_property( $post_id );
		}
	}

	public static function columns( $cols ) {
		$new = array();
		foreach ( $cols as $key => $label ) {
			$new[ $key ] = $label;
			if ( 'title' === $key ) {
				$new['ethebo_price']  = ethebo__( 'Price / night' );
				$new['ethebo_guests'] = ethebo__( 'Guests' );
				$new['ethebo_sync']   = ethebo__( 'Sync' );
			}
		}
		return $new;
	}

	public static function column( $col, $post_id ) {
		switch ( $col ) {
			case 'ethebo_price':
				echo esc_html( ethebo_price( ethebo_meta( $post_id, 'price', 0 ) ) );
				break;
			case 'ethebo_guests':
				echo esc_html( ethebo_meta( $post_id, 'max_guests', '–' ) );
				break;
			case 'ethebo_sync':
				$log = (array) get_post_meta( $post_id, '_ethebo_sync_log', true );
				$log = array_filter( $log );
				if ( ! $log ) {
					echo '<span class="ethebo-muted">—</span>';
					break;
				}
				foreach ( $log as $source => $e ) {
					printf(
						'<span class="ethebo-dot %s" title="%s"></span>%s ',
						$e['ok'] ? 'ok' : 'err',
						esc_attr( $e['ok'] ? 'OK' : $e['msg'] ),
						esc_html( ethebo_source_label( $source ) )
					);
				}
				break;
		}
	}
}