<?php
/**
 * Handles the Webhook PAYMENT.SALE.COMPLETED
 *
 * @package WooCommerce\PayPalCommerce\Webhooks\Handler
 */

declare(strict_types=1);

namespace WooCommerce\PayPalCommerce\Webhooks\Handler;

use Psr\Log\LoggerInterface;
use WC_Data_Exception;
use WooCommerce\PayPalCommerce\PayPalSubscriptions\RenewalHandler;
use WP_REST_Request;
use WP_REST_Response;

/**
 * Class PaymentSaleCompleted
 */
class PaymentSaleCompleted implements RequestHandler {

	use RequestHandlerTrait;

	/**
	 * Renewal handler.
	 *
	 * @var RenewalHandler
	 */
	private $renewal_handler;

	/**
	 * The logger.
	 *
	 * @var LoggerInterface
	 */
	private $logger;

	/**
	 * PaymentSaleCompleted constructor.
	 *
	 * @param LoggerInterface $logger The logger.
	 * @param RenewalHandler  $renewal_handler Renewal handler.
	 */
	public function __construct( LoggerInterface $logger, RenewalHandler $renewal_handler ) {
		$this->logger          = $logger;
		$this->renewal_handler = $renewal_handler;
	}

	/**
	 * The event types a handler handles.
	 *
	 * @return string[]
	 */
	public function event_types(): array {
		return array( 'PAYMENT.SALE.COMPLETED' );
	}

	/**
	 * Whether a handler is responsible for a given request or not.
	 *
	 * @param WP_REST_Request $request The request.
	 *
	 * @return bool
	 */
	public function responsible_for_request( WP_REST_Request $request ): bool {
		return in_array( $request['event_type'], $this->event_types(), true );

	}

	/**
	 * Responsible for handling the request.
	 *
	 * @param WP_REST_Request $request The request.
	 *
	 * @return WP_REST_Response
	 */
	public function handle_request( WP_REST_Request $request ): WP_REST_Response {
		if ( is_null( $request['resource'] ) ) {
			return $this->failure_response( 'Could not retrieve resource.' );
		}

		if ( ! function_exists( 'wcs_get_subscriptions' ) ) {
			return $this->failure_response( 'WooCommerce Subscriptions plugin is not active.' );
		}

		$billing_agreement_id = wc_clean( wp_unslash( $request['resource']['billing_agreement_id'] ?? '' ) );
		if ( ! $billing_agreement_id ) {
			return $this->failure_response( 'Could not retrieve billing agreement id for subscription.' );
		}

		$transaction_id = wc_clean( wp_unslash( $request['resource']['id'] ?? '' ) );
		if ( ! $transaction_id || ! is_string( $transaction_id ) ) {
			return $this->failure_response( 'Could not retrieve transaction id for subscription.' );
		}

		$args = array(
			// phpcs:ignore WordPress.DB.SlowDBQuery
			'meta_query' => array(
				array(
					'key'     => 'ppcp_subscription',
					'value'   => $billing_agreement_id,
					'compare' => '=',
				),
			),
		);

		$subscriptions = wcs_get_subscriptions( $args );
		if ( $subscriptions ) {
			try {
				$this->renewal_handler->process( $subscriptions, $transaction_id );
			} catch ( WC_Data_Exception $exception ) {
				return $this->failure_response( 'Could not update payment method.' );
			}
		}

		return $this->success_response();
	}
}
