public function log_delivery( $delivery_id, $request, $response, $duration ) {
		$logger  = wc_get_logger();
		$message = array(
			'Webhook Delivery' => array(
				'Delivery ID' => $delivery_id,
				'Date'        => date_i18n( __( 'M j, Y @ G:i', 'woocommerce' ), strtotime( 'now' ), true ),
				'URL'         => $this->get_delivery_url(),
				'Duration'    => $duration,
				'Request'     => array(
					'Method'  => $request['method'],
					'Headers' => array_merge(
						array(
							'User-Agent' => $request['user-agent'],
						),
						$request['headers']
					),
				),
				'Body'        => wp_slash( $request['body'] ),
			),
		);

		// Parse response.
		if ( is_wp_error( $response ) ) {
			$response_code    = $response->get_error_code();
			$response_message = $response->get_error_message();
			$response_headers = array();
			$response_body    = '';
		} else {
			$response_code    = wp_remote_retrieve_response_code( $response );
			$response_message = wp_remote_retrieve_response_message( $response );
			$response_headers = wp_remote_retrieve_headers( $response );
			$response_body    = wp_remote_retrieve_body( $response );
		}

		$message['Webhook Delivery']['Response'] = array(
			'Code'    => $response_code,
			'Message' => $response_message,
			'Headers' => $response_headers,
			'Body'    => $response_body,
		);

		if ( ! Constants::is_true( 'WP_DEBUG' ) ) {
			$message['Webhook Delivery']['Body']             = 'Webhook body is not logged unless WP_DEBUG mode is turned on. This is to avoid the storing of personal data in the logs.';
			$message['Webhook Delivery']['Response']['Body'] = 'Webhook body is not logged unless WP_DEBUG mode is turned on. This is to avoid the storing of personal data in the logs.';
		}

		$logger->info(
			wc_print_r( $message, true ),
			array(
				'source' => 'webhooks-delivery',
			)
		);

		// Track failures.
		// Check for a success, which is a 2xx, 301 or 302 Response Code.
		if ( intval( $response_code ) >= 200 && intval( $response_code ) < 303 ) {
			$this->set_failure_count( 0 );
			$this->save();
		} else {
			$this->failed_delivery();
		}
	}