/**
 * Produktbilder in WooCommerce-Bestell-E-Mails anzeigen (150 x 100 px)
 */
add_filter( 'woocommerce_email_order_items_args', function ( $args ) {
	$args['show_image'] = true;
	$args['image_size'] = array( 150, 100 );
	return $args;
} );

add_filter( 'woocommerce_email_styles', function ( $css ) {
	$css .= '
		.order_item td img {
			border: 1px solid #e2e8f0 !important;
			border-radius: 4px !important;
			vertical-align: middle !important;
			margin-right: 12px !important;
			max-width: 150px !important;
			height: auto !important;
		}';
	return $css;
} );

/**
 * Produktbilder in der WooCommerce-Produktliste (Backend) auf 100 x 66 px vergrössern
 */
add_action( 'admin_head', function () {
	$screen = function_exists( 'get_current_screen' ) ? get_current_screen() : null;
	if ( ! $screen || 'edit-product' !== $screen->id ) {
		return;
	}
	echo '<style>
		table.wp-list-table .column-thumb { width: 115px !important; text-align: center !important; }
		table.wp-list-table td.column-thumb img {
			width: 100px !important; height: 66px !important;
			max-width: 100px !important; max-height: 66px !important;
			object-fit: contain !important; border: 1px solid #e2e8f0 !important;
			border-radius: 4px !important; display: block !important; margin: 0 auto !important;
		}
	</style>';
} );

/**
 * Produktanzahl hinter Kategorienamen im Shop ausblenden
 */
add_filter( 'woocommerce_subcategory_count_html', '__return_false' );

/**
 * «Mehrwertsteuer» im Warenkorb und Checkout zu «MwSt.» abkürzen
 */
add_filter( 'gettext', function ( $translated, $text, $domain ) {
	if ( 'woocommerce' === $domain && false !== strpos( $translated, 'Mehrwertsteuer' ) ) {
		$translated = str_replace( 'Mehrwertsteuer', 'MwSt.', $translated );
	}
	return $translated;
}, 20, 3 );

/**
 * «Lieferrückstand» durch «Wird für Sie bestellt» ersetzen
 */
add_filter( 'gettext', function ( $translated, $text, $domain ) {
	if ( ! is_admin() && in_array( $text, array( 'On backorder', 'Auf Lieferrückstand', 'Lieferrückstand' ), true ) ) {
		return 'Wird für Sie bestellt';
	}
	return $translated;
}, 20, 3 );

/**
 * Hochgeladene Bilder automatisch als WebP speichern
 */
add_filter( 'image_editor_output_format', function ( $formats ) {
	$formats['image/jpeg'] = 'image/webp';
	$formats['image/png']  = 'image/webp';
	return $formats;
} );

add_filter( 'wp_editor_set_quality', function ( $quality, $mime_type ) {
	return ( 'image/webp' === $mime_type ) ? 82 : $quality;
}, 10, 2 );

/**
 * Editor der Produktbeschreibung auf 500 px Höhe begrenzen
 */
add_filter( 'tiny_mce_before_init', function ( $init, $editor_id ) {
	if ( 'content' === $editor_id && 'product' === get_post_type() ) {
		$init['wp_autoresize_on'] = false;
		$init['height']           = 500;
		$init['min_height']       = 500;
	}
	return $init;
}, 10, 2 );

add_action( 'admin_head', function () {
	global $post_type;
	if ( 'product' !== $post_type ) {
		return;
	}
	echo '<style>
		#postdivrich #content_ifr { height: 500px !important; min-height: 500px !important; max-height: 500px !important; }
		#postdivrich textarea#content { height: 500px !important; max-height: 500px !important; overflow-y: auto !important; }
	</style>';
} );

/**
 * Kostenlosen Versand für bestimmte Versandklassen ausschliessen
 * Slugs der Versandklassen unten anpassen.
 */
function rm24_excluded_shipping_classes() {
	return array( 'spedition', 'post-schwer' );
}

function rm24_package_has_excluded_class( $package ) {
	if ( empty( $package['contents'] ) || ! is_array( $package['contents'] ) ) {
		return false;
	}
	foreach ( $package['contents'] as $item ) {
		if ( in_array( $item['data']->get_shipping_class(), rm24_excluded_shipping_classes(), true ) ) {
			return true;
		}
	}
	return false;
}

add_filter( 'woocommerce_shipping_free_shipping_is_available', function ( $is_available, $package ) {
	return ( $is_available && ! rm24_package_has_excluded_class( $package ) );
}, 99, 2 );

add_filter( 'woocommerce_package_rates', function ( $rates, $package ) {
	if ( rm24_package_has_excluded_class( $package ) ) {
		foreach ( $rates as $rate_id => $rate ) {
			if ( 'free_shipping' === $rate->method_id ) {
				unset( $rates[ $rate_id ] );
			}
		}
	}
	return $rates;
}, 5, 2 );

/**
 * Ungewollte Ausgaben vor XML-Sitemaps entfernen
 */
add_action( 'init', function () {
	$uri = isset( $_SERVER['REQUEST_URI'] ) ? (string) wp_unslash( $_SERVER['REQUEST_URI'] ) : '';
	if ( preg_match( '#sitemap[^/]*\.(xml|xsl)#i', $uri ) && ob_get_level() > 0 ) {
		ob_clean();
	}
}, 1 );