<?php
/**
 * OrderSchema class.
 *
 * @package WooCommerce\RestApi
 */

declare( strict_types=1 );

namespace Automattic\WooCommerce\RestApi\Routes\V4\Orders\Schema;

defined( 'ABSPATH' ) || exit;

use Automattic\WooCommerce\RestApi\Routes\V4\AbstractSchema;
use Automattic\WooCommerce\Enums\OrderStatus;
use Automattic\WooCommerce\Internal\CostOfGoodsSold\CogsAwareTrait;
use Automattic\WooCommerce\Utilities\OrderUtil;
use WC_Order;
use WP_REST_Request;
use Automattic\WooCommerce\Internal\Fulfillments\FulfillmentUtils;

/**
 * OrderSchema class.
 */
class OrderSchema extends AbstractSchema {
	use CogsAwareTrait;

	/**
	 * The schema item identifier.
	 *
	 * @var string
	 */
	const IDENTIFIER = 'order';

	/**
	 * The order item schema.
	 *
	 * @var OrderItemSchema
	 */
	private $order_item_schema;

	/**
	 * The order coupon schema.
	 *
	 * @var OrderCouponSchema
	 */
	private $order_coupon_schema;

	/**
	 * The order fee schema.
	 *
	 * @var OrderFeeSchema
	 */
	private $order_fee_schema;

	/**
	 * The order tax schema.
	 *
	 * @var OrderTaxSchema
	 */
	private $order_tax_schema;

	/**
	 * The order shipping schema.
	 *
	 * @var OrderShippingSchema
	 */
	private $order_shipping_schema;

	/**
	 * Initialize the schema.
	 *
	 * @internal
	 * @param OrderItemSchema     $order_item_schema The order item schema.
	 * @param OrderCouponSchema   $order_coupon_schema The order coupon schema.
	 * @param OrderFeeSchema      $order_fee_schema The order fee schema.
	 * @param OrderTaxSchema      $order_tax_schema The order tax schema.
	 * @param OrderShippingSchema $order_shipping_schema The order shipping schema.
	 */
	final public function init( OrderItemSchema $order_item_schema, OrderCouponSchema $order_coupon_schema, OrderFeeSchema $order_fee_schema, OrderTaxSchema $order_tax_schema, OrderShippingSchema $order_shipping_schema ) {
		$this->order_item_schema     = $order_item_schema;
		$this->order_coupon_schema   = $order_coupon_schema;
		$this->order_fee_schema      = $order_fee_schema;
		$this->order_tax_schema      = $order_tax_schema;
		$this->order_shipping_schema = $order_shipping_schema;
	}

	/**
	 * Return all properties for the item schema.
	 *
	 * Note that context determines under which context data should be visible. For example, edit would be the context
	 * used when getting records with the intent of editing them. embed context allows the data to be visible when the
	 * item is being embedded in another response.
	 *
	 * @return array
	 */
	public function get_item_schema_properties(): array {
		$schema = array(
			'id'                   => array(
				'description' => __( 'Unique identifier for the resource.', 'woocommerce' ),
				'type'        => 'integer',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'parent_id'            => array(
				'description' => __( 'Parent order ID.', 'woocommerce' ),
				'type'        => 'integer',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
			),
			'number'               => array(
				'description' => __( 'Order number.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'order_key'            => array(
				'description' => __( 'Order key.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'created_via'          => array(
				'description' => __( 'Shows where the order was created.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
			),
			'version'              => array(
				'description' => __( 'Version of WooCommerce which last updated the order.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'status'               => array(
				'description' => __( 'Order status.', 'woocommerce' ),
				'type'        => 'string',
				'default'     => OrderStatus::PENDING,
				'enum'        => array_map( OrderUtil::class . '::remove_status_prefix', array_merge( array( OrderStatus::AUTO_DRAFT ), array_keys( wc_get_order_statuses() ) ) ),
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
			),
			'currency'             => array(
				'description' => __( 'Currency the order was created with, in ISO format.', 'woocommerce' ),
				'type'        => 'string',
				'default'     => get_woocommerce_currency(),
				'enum'        => array_keys( get_woocommerce_currencies() ),
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
			),
			'currency_symbol'      => array(
				'description' => __( 'Currency symbol for the currency which can be used to format returned prices.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'date_created'         => array(
				'description' => __( "The date the order was created, in the site's timezone.", 'woocommerce' ),
				'type'        => 'string',
				'format'      => 'date-time',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'date_created_gmt'     => array(
				'description' => __( 'The date the order was created, as GMT.', 'woocommerce' ),
				'type'        => 'string',
				'format'      => 'date-time',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'date_modified'        => array(
				'description' => __( "The date the order was last modified, in the site's timezone.", 'woocommerce' ),
				'type'        => 'string',
				'format'      => 'date-time',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'date_modified_gmt'    => array(
				'description' => __( 'The date the order was last modified, as GMT.', 'woocommerce' ),
				'type'        => 'string',
				'format'      => 'date-time',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'discount_total'       => array(
				'description' => __( 'Total discount amount for the order.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'discount_tax'         => array(
				'description' => __( 'Total discount tax amount for the order.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'shipping_total'       => array(
				'description' => __( 'Total shipping amount for the order.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'shipping_tax'         => array(
				'description' => __( 'Total shipping tax amount for the order.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'cart_tax'             => array(
				'description' => __( 'Sum of line item taxes only.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'total'                => array(
				'description' => __( 'Grand total.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'total_tax'            => array(
				'description' => __( 'Sum of all taxes.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'prices_include_tax'   => array(
				'description' => __( 'True the prices included tax during checkout.', 'woocommerce' ),
				'type'        => 'boolean',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'customer_id'          => array(
				'description' => __( 'User ID who owns the order. 0 for guests.', 'woocommerce' ),
				'type'        => 'integer',
				'default'     => 0,
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
			),
			'customer_ip_address'  => array(
				'description' => __( "Customer's IP address.", 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'customer_user_agent'  => array(
				'description' => __( 'User agent of the customer.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'customer_note'        => array(
				'description' => __( 'Note left by customer during checkout.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
			),
			'billing'              => array(
				'description' => __( 'Billing address.', 'woocommerce' ),
				'type'        => 'object',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'properties'  => array(
					'first_name' => array(
						'description' => __( 'First name.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'last_name'  => array(
						'description' => __( 'Last name.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'company'    => array(
						'description' => __( 'Company name.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'address_1'  => array(
						'description' => __( 'Address line 1', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'address_2'  => array(
						'description' => __( 'Address line 2', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'city'       => array(
						'description' => __( 'City name.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'state'      => array(
						'description' => __( 'ISO code or name of the state, province or district.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'postcode'   => array(
						'description' => __( 'Postal code.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'country'    => array(
						'description' => __( 'Country code in ISO 3166-1 alpha-2 format.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'email'      => array(
						'description' => __( 'Email address.', 'woocommerce' ),
						'type'        => array( 'string', 'null' ),
						'format'      => 'email',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'phone'      => array(
						'description' => __( 'Phone number.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
				),
			),
			'shipping'             => array(
				'description' => __( 'Shipping address.', 'woocommerce' ),
				'type'        => 'object',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'properties'  => array(
					'first_name' => array(
						'description' => __( 'First name.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'last_name'  => array(
						'description' => __( 'Last name.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'company'    => array(
						'description' => __( 'Company name.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'address_1'  => array(
						'description' => __( 'Address line 1', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'address_2'  => array(
						'description' => __( 'Address line 2', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'city'       => array(
						'description' => __( 'City name.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'state'      => array(
						'description' => __( 'ISO code or name of the state, province or district.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'postcode'   => array(
						'description' => __( 'Postal code.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'country'    => array(
						'description' => __( 'Country code in ISO 3166-1 alpha-2 format.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
					'phone'      => array(
						'description' => __( 'Phone number.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
					),
				),
			),
			'payment_method'       => array(
				'description' => __( 'Payment method ID.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
			),
			'payment_method_title' => array(
				'description' => __( 'Payment method title.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'arg_options' => array(
					'sanitize_callback' => 'sanitize_text_field',
				),
			),
			'transaction_id'       => array(
				'description' => __( 'Unique transaction ID.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
			),
			'date_paid'            => array(
				'description' => __( "The date the order was paid, in the site's timezone.", 'woocommerce' ),
				'type'        => 'string',
				'format'      => 'date-time',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'date_paid_gmt'        => array(
				'description' => __( 'The date the order was paid, as GMT.', 'woocommerce' ),
				'type'        => 'string',
				'format'      => 'date-time',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'date_completed'       => array(
				'description' => __( "The date the order was completed, in the site's timezone.", 'woocommerce' ),
				'type'        => 'string',
				'format'      => 'date-time',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'date_completed_gmt'   => array(
				'description' => __( 'The date the order was completed, as GMT.', 'woocommerce' ),
				'type'        => 'string',
				'format'      => 'date-time',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'cart_hash'            => array(
				'description' => __( 'MD5 hash of cart items to ensure orders are not modified.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'meta_data'            => array(
				'description' => __( 'Meta data.', 'woocommerce' ),
				'type'        => 'array',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'items'       => array(
					'type'       => 'object',
					'properties' => array(
						'id'    => array(
							'description' => __( 'Meta ID.', 'woocommerce' ),
							'type'        => 'integer',
							'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
							'readonly'    => true,
						),
						'key'   => array(
							'description' => __( 'Meta key.', 'woocommerce' ),
							'type'        => 'string',
							'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
						),
						'value' => array(
							'description' => __( 'Meta value.', 'woocommerce' ),
							'type'        => array( 'null', 'object', 'string', 'number', 'boolean', 'integer', 'array' ),
							'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
						),
					),
				),
			),
			'line_items'           => array(
				'description' => __( 'A list of line items (products) within this order.', 'woocommerce' ),
				'type'        => 'array',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'items'       => array(
					'type'       => 'object',
					'properties' => $this->order_item_schema->get_item_schema_properties(),
				),
			),
			'tax_lines'            => array(
				'description' => __( 'Tax lines data.', 'woocommerce' ),
				'type'        => 'array',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
				'items'       => array(
					'type'       => 'object',
					'properties' => $this->order_tax_schema->get_item_schema_properties(),
				),
			),
			'shipping_lines'       => array(
				'description' => __( 'Shipping lines data.', 'woocommerce' ),
				'type'        => 'array',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'items'       => array(
					'type'       => 'object',
					'properties' => $this->order_shipping_schema->get_item_schema_properties(),
				),
			),
			'fee_lines'            => array(
				'description' => __( 'Fee lines data.', 'woocommerce' ),
				'type'        => 'array',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'items'       => array(
					'type'       => 'object',
					'properties' => $this->order_fee_schema->get_item_schema_properties(),
				),
			),
			'coupon_lines'         => array(
				'description' => __( 'Coupons line data.', 'woocommerce' ),
				'type'        => 'array',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'items'       => array(
					'type'       => 'object',
					'properties' => $this->order_coupon_schema->get_item_schema_properties(),
				),
			),
			'payment_url'          => array(
				'description' => __( 'Order payment URL.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'is_editable'          => array(
				'description' => __( 'Whether an order can be edited.', 'woocommerce' ),
				'type'        => 'boolean',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'needs_payment'        => array(
				'description' => __( 'Whether an order needs payment, based on status and order total.', 'woocommerce' ),
				'type'        => 'boolean',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'needs_processing'     => array(
				'description' => __( 'Whether an order needs processing before it can be completed.', 'woocommerce' ),
				'type'        => 'boolean',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
			'fulfillment_status'   => array(
				'description' => __( 'The fulfillment status of the order.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				'readonly'    => true,
			),
		);

		if ( $this->cogs_is_enabled() ) {
			$schema = $this->add_cogs_related_schema( $schema );
		}

		return $schema;
	}

	/**
	 * Add the Cost of Goods Sold related fields to the schema.
	 *
	 * @param array $schema The original schema.
	 * @return array The updated schema.
	 */
	private static function add_cogs_related_schema( array $schema ): array {
		$schema['cost_of_goods_sold'] = array(
			'description' => __( 'Cost of Goods Sold data.', 'woocommerce' ),
			'type'        => 'object',
			'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
			'properties'  => array(
				'total_value' => array(
					'description' => __( 'Total value of the Cost of Goods Sold for the order.', 'woocommerce' ),
					'type'        => 'number',
					'readonly'    => true,
					'context'     => self::VIEW_EDIT_EMBED_CONTEXT,
				),
			),
		);
		return $schema;
	}

	/**
	 * Get an item response.
	 *
	 * @param WC_Order        $order Order instance.
	 * @param WP_REST_Request $request Request object.
	 * @param array           $include_fields Fields to include in the response.
	 * @return array
	 */
	public function get_item_response( $order, WP_REST_Request $request, array $include_fields = array() ): array {
		$dp   = is_null( $request['num_decimals'] ) ? wc_get_price_decimals() : absint( $request['num_decimals'] );
		$data = array(
			'id'                   => $order->get_id(),
			'parent_id'            => $order->get_parent_id(),
			'number'               => $order->get_order_number(),
			'order_key'            => $order->get_order_key(),
			'created_via'          => $order->get_created_via(),
			'version'              => $order->get_version(),
			'status'               => OrderUtil::remove_status_prefix( $order->get_status() ),
			'currency'             => $order->get_currency(),
			'currency_symbol'      => html_entity_decode( get_woocommerce_currency_symbol( $order->get_currency() ), ENT_QUOTES ),
			'date_created'         => wc_rest_prepare_date_response( $order->get_date_created(), false ),
			'date_created_gmt'     => wc_rest_prepare_date_response( $order->get_date_created() ),
			'date_modified'        => wc_rest_prepare_date_response( $order->get_date_modified(), false ),
			'date_modified_gmt'    => wc_rest_prepare_date_response( $order->get_date_modified() ),
			'discount_total'       => wc_format_decimal( $order->get_discount_total(), $dp ),
			'discount_tax'         => wc_format_decimal( $order->get_discount_tax(), $dp ),
			'shipping_total'       => wc_format_decimal( $order->get_shipping_total(), $dp ),
			'shipping_tax'         => wc_format_decimal( $order->get_shipping_tax(), $dp ),
			'cart_tax'             => wc_format_decimal( $order->get_cart_tax(), $dp ),
			'total'                => wc_format_decimal( $order->get_total(), $dp ),
			'total_tax'            => wc_format_decimal( $order->get_total_tax(), $dp ),
			'prices_include_tax'   => $order->get_prices_include_tax(),
			'customer_id'          => $order->get_customer_id(),
			'customer_ip_address'  => $order->get_customer_ip_address(),
			'customer_user_agent'  => $order->get_customer_user_agent(),
			'customer_note'        => $order->get_customer_note(),
			'billing'              => array(
				'first_name' => $order->get_billing_first_name(),
				'last_name'  => $order->get_billing_last_name(),
				'company'    => $order->get_billing_company(),
				'address_1'  => $order->get_billing_address_1(),
				'address_2'  => $order->get_billing_address_2(),
				'city'       => $order->get_billing_city(),
				'state'      => $order->get_billing_state(),
				'postcode'   => $order->get_billing_postcode(),
				'country'    => $order->get_billing_country(),
				'email'      => $order->get_billing_email(),
				'phone'      => $order->get_billing_phone(),
			),
			'shipping'             => array(
				'first_name' => $order->get_shipping_first_name(),
				'last_name'  => $order->get_shipping_last_name(),
				'company'    => $order->get_shipping_company(),
				'address_1'  => $order->get_shipping_address_1(),
				'address_2'  => $order->get_shipping_address_2(),
				'city'       => $order->get_shipping_city(),
				'state'      => $order->get_shipping_state(),
				'postcode'   => $order->get_shipping_postcode(),
				'country'    => $order->get_shipping_country(),
				'phone'      => $order->get_shipping_phone(),
			),
			'payment_method'       => $order->get_payment_method(),
			'payment_method_title' => $order->get_payment_method_title(),
			'transaction_id'       => $order->get_transaction_id(),
			'date_paid'            => wc_rest_prepare_date_response( $order->get_date_paid(), false ),
			'date_paid_gmt'        => wc_rest_prepare_date_response( $order->get_date_paid() ),
			'date_completed'       => wc_rest_prepare_date_response( $order->get_date_completed(), false ),
			'date_completed_gmt'   => wc_rest_prepare_date_response( $order->get_date_completed() ),
			'cart_hash'            => $order->get_cart_hash(),
			'payment_url'          => $order->get_checkout_payment_url(),
			'is_editable'          => $order->is_editable(),
			'needs_payment'        => $order->needs_payment(),
			'needs_processing'     => $order->needs_processing(),
			'fulfillment_status'   => FulfillmentUtils::get_order_fulfillment_status( $order ),
		);

		if ( in_array( 'line_items', $include_fields, true ) ) {
			$line_items         = $order->get_items( 'line_item' );
			$data['line_items'] = array();
			foreach ( $line_items as $line_item ) {
				$data['line_items'][] = $this->order_item_schema->get_item_response( $line_item, $request );
			}
		}

		if ( in_array( 'shipping_lines', $include_fields, true ) ) {
			$line_items             = $order->get_items( 'shipping' );
			$data['shipping_lines'] = array();
			foreach ( $line_items as $line_item ) {
				$data['shipping_lines'][] = $this->order_shipping_schema->get_item_response( $line_item, $request );
			}
		}

		if ( in_array( 'coupon_lines', $include_fields, true ) ) {
			$line_items           = $order->get_items( 'coupon' );
			$data['coupon_lines'] = array();
			foreach ( $line_items as $line_item ) {
				$data['coupon_lines'][] = $this->order_coupon_schema->get_item_response( $line_item, $request );
			}
		}

		if ( in_array( 'fee_lines', $include_fields, true ) ) {
			$line_items        = $order->get_items( 'fee' );
			$data['fee_lines'] = array();
			foreach ( $line_items as $line_item ) {
				$data['fee_lines'][] = $this->order_fee_schema->get_item_response( $line_item, $request );
			}
		}

		if ( in_array( 'tax_lines', $include_fields, true ) ) {
			$line_items        = $order->get_items( 'tax' );
			$data['tax_lines'] = array();
			foreach ( $line_items as $line_item ) {
				$data['tax_lines'][] = $this->order_tax_schema->get_item_response( $line_item, $request );
			}
		}

		if ( in_array( 'meta_data', $include_fields, true ) ) {
			$filtered_meta_data = $this->filter_internal_meta_keys( $this->get_meta_data_for_response( $order->get_meta_data(), $request ) );
			$data['meta_data']  = array();
			foreach ( $filtered_meta_data as $meta_item ) {
				$data['meta_data'][] = array(
					'id'    => $meta_item->id,
					'key'   => $meta_item->key,
					'value' => $meta_item->value,
				);
			}
		}

		// Add COGS data.
		if ( $this->cogs_is_enabled() && in_array( 'cost_of_goods_sold', $include_fields, true ) ) {
			$data['cost_of_goods_sold']['total_value'] = $order->get_cogs_total_value();
		}

		$data = array_intersect_key( $data, array_flip( $include_fields ) );

		return $data;
	}

	/**
	 * With HPOS, few internal meta keys such as _billing_address_index, _shipping_address_index are not considered internal anymore (since most internal keys were flattened into dedicated columns).
	 *
	 * This function helps in filtering out any remaining internal meta keys with HPOS is enabled.
	 *
	 * @param array $meta_data Order meta data.
	 * @return array Filtered order meta data.
	 */
	protected function filter_internal_meta_keys( $meta_data ) {
		if ( ! OrderUtil::custom_orders_table_usage_is_enabled() ) {
			return $meta_data;
		}
		$cpt_hidden_keys = ( new \WC_Order_Data_Store_CPT() )->get_internal_meta_keys();
		$meta_data       = array_filter(
			$meta_data,
			function ( $meta ) use ( $cpt_hidden_keys ) {
				return ! in_array( $meta->key, $cpt_hidden_keys, true );
			}
		);
		return array_values( $meta_data );
	}

	/**
	 * Limit the contents of the meta_data property based on certain request parameters.
	 *
	 * Note that if both `include_meta` and `exclude_meta` are present in the request,
	 * `include_meta` will take precedence.
	 *
	 * @param array            $meta_data All of the meta data for an object.
	 * @param \WP_REST_Request $request   The request.
	 *
	 * @return array
	 */
	protected function get_meta_data_for_response( $meta_data, $request ) {
		$include = (array) $request['include_meta'];
		$exclude = (array) $request['exclude_meta'];

		if ( ! empty( $include ) ) {
			$meta_data = array_filter(
				$meta_data,
				function ( \WC_Meta_Data $item ) use ( $include ) {
					$data = $item->get_data();
					return in_array( $data['key'], $include, true );
				}
			);
		} elseif ( ! empty( $exclude ) ) {
			$meta_data = array_filter(
				$meta_data,
				function ( \WC_Meta_Data $item ) use ( $exclude ) {
					$data = $item->get_data();
					return ! in_array( $data['key'], $exclude, true );
				}
			);
		}

		// Ensure the array indexes are reset so it doesn't get converted to an object in JSON.
		return array_values( $meta_data );
	}
}
