✏️ Editing: ShippingLocation.php Writable

<?php
declare( strict_types=1 );

namespace Automattic\WooCommerce\GoogleListingsAndAds\Shipping;

defined( 'ABSPATH' ) || exit;

/**
 * Class ShippingLocation
 *
 * @package Automattic\WooCommerce\GoogleListingsAndAds\Shipping
 *
 * @since   2.1.0
 */
class ShippingLocation {
	public const COUNTRY_AREA  = 'country_area';
	public const STATE_AREA    = 'state_area';
	public const POSTCODE_AREA = 'postcode_area';

/**
	 * @var int
	 */
	protected $google_id;

/**
	 * @var string
	 */
	protected $country;

/**
	 * @var string
	 */
	protected $state;

/**
	 * @var ShippingRegion
	 */
	protected $shipping_region;

/**
	 * ShippingLocation constructor.
	 *
	 * @param int                 $google_id
	 * @param string              $country
	 * @param string|null         $state
	 * @param ShippingRegion|null $shipping_region
	 */
	public function __construct( int $google_id, string $country, ?string $state = null, ?ShippingRegion $shipping_region = null ) {
		$this->google_id       = $google_id;
		$this->country         = $country;
		$this->state           = $state;
		$this->shipping_region = $shipping_region;
	}

/**
	 * @return int
	 */
	public function get_google_id(): int {
		return $this->google_id;
	}

/**
	 * @return string
	 */
	public function get_country(): string {
		return $this->country;
	}

/**
	 * @return string|null
	 */
	public function get_state(): ?string {
		return $this->state;
	}

/**
	 * @return ShippingRegion|null
	 */
	public function get_shipping_region(): ?ShippingRegion {
		return $this->shipping_region;
	}

/**
	 * Return the applicable shipping area for this shipping location. e.g. whether it applies to a whole country, state, or postcodes.
	 *
	 * @return string
	 */
	public function get_applicable_area(): string {
		if ( ! empty( $this->get_shipping_region() ) ) {
			// ShippingLocation applies to a select postal code ranges of a country
			return self::POSTCODE_AREA;
		} elseif ( ! empty( $this->get_state() ) ) {
			// ShippingLocation applies to a state/province of a country
			return self::STATE_AREA;
		} else {
			// ShippingLocation applies to a whole country
			return self::COUNTRY_AREA;
		}
	}

/**
	 * Returns the string representation of this ShippingLocation.
	 *
	 * @return string
	 */
	public function __toString() {
		$code = $this->get_country();
		if ( ! empty( $this->get_shipping_region() ) ) {
			// We assume that each postcode is unique within any supported country (a requirement set by Google API).
			// Therefore, there is no need to include the state name in the location string even if it's provided.
			$code .= '::' . $this->get_shipping_region();
		} elseif ( ! empty( $this->get_state() ) ) {
			$code .= '_' . $this->get_state();
		}

return $code;
	}
}

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