Inventory_Presser_Admin_Customize_Dashboard::save_vehicle_post_meta( int $post_id, WP_Post $post, bool $is_update )

	function save_vehicle_post_meta( $post_id, $post, $is_update ) {
		/**
		 * Do not continue if the post is being moved to the trash or if this is
		 * an auto-draft.
		 */
		if ( in_array( $post->post_status, array( 'trash', 'auto-draft' ) ) ) {
			return;
		}

		// Abort if autosave or AJAX/quick edit
		if ( ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
			|| ( defined( 'DOING_AJAX' ) && DOING_AJAX )
		) {
			return;
		}

		// is this a vehicle?
		if ( ! empty( $_POST['post_type'] ) && INVP::POST_TYPE != $_POST['post_type'] ) {
			// no, don't create any meta data for vehicles
			return;
		}

		if ( empty( $_POST ) ) {
			return;
		}

		/**
		 * Tick the last modified date of this vehicle since we're saving changes.
		 * It looks like this: Tue, 06 Sep 2016 09:26:12 -0400
		 */
		$offset           = sprintf( '%+03d00', intval( get_option( 'gmt_offset' ) ) );
		$timestamp_format = 'D, d M Y h:i:s';
		// use post_modified to set last_modified
		$post_modified = DateTime::createFromFormat( 'Y-m-d H:i:s', $post->post_modified );
		$timestamp     = $post_modified->format( $timestamp_format ) . ' ' . $offset;
		update_post_meta( $post_id, apply_filters( 'invp_prefix_meta_key', 'last_modified' ), $timestamp );

		/**
		 * If this is not an update or there is no date entered post meta value,
		 * set the date_entered meta value using the post_date
		 */
		if ( ! $is_update || empty( INVP::get_meta( 'date_entered', $post_id ) ) ) {
			// use post_date to set date_entered
			$post_date = DateTime::createFromFormat( 'Y-m-d H:i:s', $post->post_date );
			$timestamp = $post_date->format( $timestamp_format ) . ' ' . $offset;
			update_post_meta( $post_id, apply_filters( 'invp_prefix_meta_key', 'date_entered' ), $timestamp );
		}

		// Clear this value that is defined by a checkbox
		update_post_meta( $post_id, apply_filters( 'invp_prefix_meta_key', 'featured' ), '0' );

		/**
		 * Loop over the post meta keys we manage and save their values
		 * if we find them coming over as part of the post to save.
		 */
		$keys   = INVP::keys();
		$keys[] = 'options_array';

		foreach ( $keys as $key ) {
			$key = apply_filters( 'invp_prefix_meta_key', $key );
			if ( isset( $_POST[ $key ] ) ) {
				if ( is_array( $_POST[ $key ] ) ) {
					// delete all meta, this is essentially for the options
					delete_post_meta( $post->ID, $key );
					$options = array(); // collect the options to maintain a CSV field for backwards compatibility

					foreach ( $this->sanitize_array( $_POST[ $key ] ) as $value ) {
						add_post_meta( $post->ID, $key, $value );
						if ( 'inventory_presser_options_array' == $key ) {
							   $options[] = $value;
						}
					}
				} else {
					// string data
					update_post_meta( $post->ID, $key, sanitize_text_field( $_POST[ $key ] ) );
				}
			}
		}
	}