WC Vendors - Prevent vendor edit booking start date and end date

function.php

/**
 * Prevent vendor edit booking start date and end date
 */
function wcv_prevent_vendor_edit_booking_start_date_and_end_date() {

	$pagename = get_query_var( 'pagename' );
	$object   = get_query_var( 'object' );
	$action   = get_query_var( 'action' );

	if ( ! is_user_logged_in() ) {
		return;
	}

	if ( 'edit' !== $action || 'wc_booking' !== $object || 'dashboard' !== $pagename ) {
		return;
	}

	?>
	<script>
		jQuery(document).ready(function ($) {
			if ( $('#_wcv-save_wc_booking').length <=0 ) {
				return;
			}
			let $bookingStartDate = $('#booking_start_date');
			let $bookingEndDate = $('#booking_end_date');
			let $post_id         = $('#post_id')
			if ($bookingStartDate.length && $bookingEndDate.length) {

				let $bookingStartDateNew = $('<input type="hidden" name="booking_start_date" id="booking_start_date_copy" value="' + $bookingStartDate.val() + '">');
				let $bookingEndDateNew = $('<input type="hidden" name="booking_end_date" id="booking_end_date_copy" value="' + $bookingEndDate.val() + '">');
				$bookingStartDate.after($bookingStartDateNew);
				$bookingEndDate.after($bookingEndDateNew);
				
				$bookingStartDate.attr('readonly', 'readonly')
				$bookingEndDate.attr('readonly', 'readonly');
				$bookingStartDate.attr('disabled', 'disabled');
				$bookingEndDate.attr('disabled', 'disabled');
			}
		});
	</script>
	<?php
}

add_action( 'wp_footer', 'wcv_prevent_vendor_edit_booking_start_date_and_end_date' );

/**
 * Prevent vendor update booking start date and end date
 *
 * @param int    $meta_id   ID of updated metadata entry.
 * @param int    $object_id Object ID.
 * @param string $meta_key Meta key.
 *
 * @return bool
 */
function wcv_prevent_update_meta_booking_start_date_and_end_date( $check, $meta_id, $object_id, $meta_key ) {

	if ( is_admin() ) {
		return $check;
	}
	if ( 'wc_booking' !== get_post_type( $object_id ) ) {
		return $check;
	}

	if ( ! isset( $_POST['_wcv-save_wc_booking'] ) ) {
		return $check;
	}

	if ( '_booking_start' === $meta_key || '_booking_end' === $meta_key ) {
		return false;
	}
}

add_filter( 'update_post_metadata', 'wcv_prevent_update_meta_booking_start_date_and_end_date', 10, 4 );