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File Content: `CartCheckoutUtils.php`

<?php // phpcs:ignore Generic.PHP.RequireStrictTypes.MissingDeclaration
namespace Automattic\WooCommerce\Blocks\Utils;

/**
 * Class containing utility methods for dealing with the Cart and Checkout blocks.
 */
class CartCheckoutUtils {
	/**
	 * Returns true if:
	 * - The cart page is being viewed.
	 * - The page contains a cart block, cart shortcode or classic shortcode block with the cart attribute.
	 *
	 * @return bool
	 */
	public static function is_cart_page() {
		global $post;

		$page_id      = wc_get_page_id( 'cart' );
		$is_cart_page = $page_id && is_page( $page_id );

		if ( $is_cart_page ) {
			return true;
		}

		// Check page contents for block/shortcode.
		return is_a( $post, 'WP_Post' ) && ( wc_post_content_has_shortcode( 'woocommerce_cart' ) || self::has_block_variation( 'woocommerce/classic-shortcode', 'shortcode', 'cart', $post->post_content ) );
	}

	/**
	 * Returns true if:
	 * - The checkout page is being viewed.
	 * - The page contains a checkout block, checkout shortcode or classic shortcode block with the checkout attribute.
	 *
	 * @return bool
	 */
	public static function is_checkout_page() {
		global $post;

		$page_id          = wc_get_page_id( 'checkout' );
		$is_checkout_page = $page_id && is_page( $page_id );

		if ( $is_checkout_page ) {
			return true;
		}

		// Check page contents for block/shortcode.
		return is_a( $post, 'WP_Post' ) && ( wc_post_content_has_shortcode( 'woocommerce_checkout' ) || self::has_block_variation( 'woocommerce/classic-shortcode', 'shortcode', 'checkout', $post->post_content ) );
	}

	/**
	 * Check if the post content contains a block with a specific attribute value.
	 *
	 * @param string $block_id The block ID to check for.
	 * @param string $attribute The attribute to check.
	 * @param string $value The value to check for.
	 * @return boolean
	 */
	public static function has_block_variation( $block_id, $attribute, $value, $post_content ) {
		if ( ! $post_content ) {
			return false;
		}

		if ( has_block( $block_id, $post_content ) ) {
			$blocks = (array) parse_blocks( $post_content );

			foreach ( $blocks as $block ) {
				if ( isset( $block['attrs'][ $attribute ] ) && $value === $block['attrs'][ $attribute ] ) {
					return true;
				}
				// Cart is default so it will be empty.
				if ( 'woocommerce/classic-shortcode' === $block_id && 'shortcode' === $attribute && 'cart' === $value && ! isset( $block['attrs']['shortcode'] ) ) {
					return true;
				}
			}
		}

		return false;
	}

	/**
	 * Checks if the default cart page is using the Cart block.
	 *
	 * @return bool true if the WC cart page is using the Cart block.
	 */
	public static function is_cart_block_default() {
		if ( wc_current_theme_is_fse_theme() ) {
			// Ignore the pages and check the templates.
			$templates_from_db = BlockTemplateUtils::get_block_templates_from_db( array( 'cart' ), 'wp_template' );
			foreach ( $templates_from_db as $template ) {
				if ( has_block( 'woocommerce/cart', $template->content ) ) {
					return true;
				}
			}
		}
		$cart_page_id = wc_get_page_id( 'cart' );
		return $cart_page_id && has_block( 'woocommerce/cart', $cart_page_id );
	}

	/**
	 * Checks if the default checkout page is using the Checkout block.
	 *
	 * @return bool true if the WC checkout page is using the Checkout block.
	 */
	public static function is_checkout_block_default() {
		if ( wc_current_theme_is_fse_theme() ) {
			// Ignore the pages and check the templates.
			$templates_from_db = BlockTemplateUtils::get_block_templates_from_db( array( 'checkout' ), 'wp_template' );
			foreach ( $templates_from_db as $template ) {
				if ( has_block( 'woocommerce/checkout', $template->content ) ) {
					return true;
				}
			}
		}
		$checkout_page_id = wc_get_page_id( 'checkout' );
		return $checkout_page_id && has_block( 'woocommerce/checkout', $checkout_page_id );
	}

	/**
	 * Migrate checkout block field visibility attributes to settings when using the checkout block.
	 *
	 * This migration routine is called if the options (woocommerce_checkout_phone_field, woocommerce_checkout_company_field,
	 * woocommerce_checkout_address_2_field) are not set. They are not set by default; they were orignally set by the
	 * customizer interface of the legacy shortcode based checkout.
	 *
	 * Once migration is initiated, the settings will be updated and will not trigger this routine again.
	 *
	 * Note: The block only stores non-default attributes. Not all attributes will be present.
	 *
	 * e.g. `{"showCompanyField":true,"requireCompanyField":true,"showApartmentField":false,"className":"wc-block-checkout"}`
	 *
	 * If the attributes are missing, we assume default values are needed.
	 */
	protected static function migrate_checkout_block_field_visibility_attributes() {
		// Before migrating attributes, migrate the "default" options checkout block uses into the settings.
		update_option( 'woocommerce_checkout_phone_field', 'optional' );
		update_option( 'woocommerce_checkout_company_field', 'hidden' );
		update_option( 'woocommerce_checkout_address_2_field', 'optional' );

		// Parse the block from the checkout page.
		$checkout_blocks = \WC_Blocks_Utils::get_blocks_from_page( 'woocommerce/checkout', 'checkout' );

		if ( empty( $checkout_blocks ) || ! isset( $checkout_blocks[0]['attrs'] ) ) {
			return;
		}

		// Combine actual attributes with default values.
		$block_attributes = wp_parse_args(
			$checkout_blocks[0]['attrs'],
			array(
				'showPhoneField'        => true,
				'requirePhoneField'     => false,
				'showCompanyField'      => false,
				'requireCompanyField'   => false,
				'showApartmentField'    => true,
				'requireApartmentField' => false,
			)
		);

		if ( $block_attributes['showPhoneField'] ) {
			update_option( 'woocommerce_checkout_phone_field', $block_attributes['requirePhoneField'] ? 'required' : 'optional' );
		} else {
			update_option( 'woocommerce_checkout_phone_field', 'hidden' );
		}

		if ( $block_attributes['showCompanyField'] ) {
			update_option( 'woocommerce_checkout_company_field', $block_attributes['requireCompanyField'] ? 'required' : 'optional' );
		} else {
			update_option( 'woocommerce_checkout_company_field', 'hidden' );
		}

		if ( $block_attributes['showApartmentField'] ) {
			update_option( 'woocommerce_checkout_address_2_field', $block_attributes['requireApartmentField'] ? 'required' : 'optional' );
		} else {
			update_option( 'woocommerce_checkout_address_2_field', 'hidden' );
		}
	}

	/**
	 * Get the default visibility for the address_2 field.
	 *
	 * @return string
	 */
	public static function get_company_field_visibility() {
		$option_value = get_option( 'woocommerce_checkout_company_field' );

		if ( $option_value ) {
			return $option_value;
		}

		if ( self::is_checkout_block_default() ) {
			self::migrate_checkout_block_field_visibility_attributes();
			return get_option( 'woocommerce_checkout_company_field', 'hidden' );
		}

		return 'optional';
	}

	/**
	 * Get the default visibility for the address_2 field.
	 *
	 * @return string
	 */
	public static function get_address_2_field_visibility() {
		$option_value = get_option( 'woocommerce_checkout_address_2_field' );

		if ( $option_value ) {
			return $option_value;
		}

		if ( self::is_checkout_block_default() ) {
			self::migrate_checkout_block_field_visibility_attributes();
			return get_option( 'woocommerce_checkout_address_2_field', 'optional' );
		}

		return 'optional';
	}

	/**
	 * Get the default visibility for the address_2 field.
	 *
	 * @return string
	 */
	public static function get_phone_field_visibility() {
		$option_value = get_option( 'woocommerce_checkout_phone_field' );

		if ( $option_value ) {
			return $option_value;
		}

		if ( self::is_checkout_block_default() ) {
			self::migrate_checkout_block_field_visibility_attributes();
			return get_option( 'woocommerce_checkout_phone_field', 'optional' );
		}

		return 'required';
	}

	/**
	 * Checks if the template overriding the page loads the page content or not.
	 * Templates by default load the page content, but if that block is deleted the content can get out of sync with the one presented in the page editor.
	 *
	 * @param string $block The block to check.
	 *
	 * @return bool true if the template has out of sync content.
	 */
	public static function is_overriden_by_custom_template_content( string $block ): bool {

		$block = str_replace( 'woocommerce/', '', $block );

		if ( wc_current_theme_is_fse_theme() ) {
			$templates_from_db = BlockTemplateUtils::get_block_templates_from_db( array( 'page-' . $block ) );
			foreach ( $templates_from_db as $template ) {
				if ( ! has_block( 'woocommerce/page-content-wrapper', $template->content ) ) {
					// Return true if the template does not load the page content via the  woocommerce/page-content-wrapper block.
					return true;
				}
			}
		}

		return false;
	}

	/**
	 * Gets country codes, names, states, and locale information.
	 *
	 * @return array
	 */
	public static function get_country_data() {
		$billing_countries  = WC()->countries->get_allowed_countries();
		$shipping_countries = WC()->countries->get_shipping_countries();
		$country_locales    = wc()->countries->get_country_locale();
		$country_states     = wc()->countries->get_states();
		$all_countries      = self::deep_sort_with_accents( array_unique( array_merge( $billing_countries, $shipping_countries ) ) );

		$country_data = [];

		foreach ( array_keys( $all_countries ) as $country_code ) {
			$country_data[ $country_code ] = [
				'allowBilling'  => isset( $billing_countries[ $country_code ] ),
				'allowShipping' => isset( $shipping_countries[ $country_code ] ),
				'states'        => $country_states[ $country_code ] ?? [],
				'locale'        => $country_locales[ $country_code ] ?? [],
			];
		}

		return $country_data;
	}

	/**
	 * Removes accents from an array of values, sorts by the values, then returns the original array values sorted.
	 *
	 * @param array $array Array of values to sort.
	 * @return array Sorted array.
	 */
	protected static function deep_sort_with_accents( $array ) {
		if ( ! is_array( $array ) || empty( $array ) ) {
			return $array;
		}

		$array_without_accents = array_map(
			function ( $value ) {
				return is_array( $value )
					? self::deep_sort_with_accents( $value )
					: remove_accents( wc_strtolower( html_entity_decode( $value ) ) );
			},
			$array
		);

		asort( $array_without_accents );
		return array_replace( $array_without_accents, $array );
	}

	/**
	 * Retrieves formatted shipping zones from WooCommerce.
	 *
	 * @return array An array of formatted shipping zones.
	 */
	public static function get_shipping_zones() {
		$shipping_zones             = \WC_Shipping_Zones::get_zones();
		$formatted_shipping_zones   = array_reduce(
			$shipping_zones,
			function ( $acc, $zone ) {
				$acc[] = [
					'id'          => $zone['id'],
					'title'       => $zone['zone_name'],
					'description' => $zone['formatted_zone_location'],
				];
				return $acc;
			},
			[]
		);
		$formatted_shipping_zones[] = [
			'id'          => 0,
			'title'       => __( 'International', 'woocommerce' ),
			'description' => __( 'Locations outside all other zones', 'woocommerce' ),
		];
		return $formatted_shipping_zones;
	}

	/**
	 * Recursively search the checkout block to find the express checkout block and
	 * get the button style attributes
	 *
	 * @param array  $blocks Blocks to search.
	 * @param string $cart_or_checkout The block type to check.
	 */
	public static function find_express_checkout_attributes( $blocks, $cart_or_checkout ) {
		$express_block_name = 'woocommerce/' . $cart_or_checkout . '-express-payment-block';
		foreach ( $blocks as $block ) {
			if ( ! empty( $block['blockName'] ) && $express_block_name === $block['blockName'] && ! empty( $block['attrs'] ) ) {
				return $block['attrs'];
			}

			if ( ! empty( $block['innerBlocks'] ) ) {
				$answer = self::find_express_checkout_attributes( $block['innerBlocks'], $cart_or_checkout );
				if ( $answer ) {
					return $answer;
				}
			}
		}
	}

	/**
	 * Given an array of blocks, find the express payment block and update its attributes.
	 *
	 * @param array  $blocks Blocks to search.
	 * @param string $cart_or_checkout The block type to check.
	 * @param array  $updated_attrs The new attributes to set.
	 */
	public static function update_blocks_with_new_attrs( &$blocks, $cart_or_checkout, $updated_attrs ) {
		$express_block_name = 'woocommerce/' . $cart_or_checkout . '-express-payment-block';
		foreach ( $blocks as $key => &$block ) {
			if ( ! empty( $block['blockName'] ) && $express_block_name === $block['blockName'] ) {
				$blocks[ $key ]['attrs'] = $updated_attrs;
			}

			if ( ! empty( $block['innerBlocks'] ) ) {
				self::update_blocks_with_new_attrs( $block['innerBlocks'], $cart_or_checkout, $updated_attrs );
			}
		}
	}
}
Name	Size	Permission
BlockHooksTrait.php	7059 bytes	0644
BlockTemplateUtils.php	31515 bytes	0644
BlocksWpQuery.php	2133 bytes	0644
CartCheckoutUtils.php	12846 bytes	0644
MiniCartUtils.php	3594 bytes	0644
ProductAvailabilityUtils.php	1521 bytes	0644
ProductGalleryUtils.php	6587 bytes	0644
StyleAttributesUtils.php	22495 bytes	0644
Utils.php	1240 bytes	0644
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File Content: `CartCheckoutUtils.php`
