<?php
namespace Careback;

defined( 'ABSPATH' ) || exit;

/**
 * Makes returns visible from the order screen: an order note when a request is
 * created and one at every change of its status.
 *
 * The order status is deliberately left alone: it is a commercial and financial
 * state that an operator owns, and a refund must be recorded through
 * WooCommerce itself. What was missing was visibility — an order gave no sign
 * that a return existed. The notes close that without taking the decision away.
 * Anything further on the order screen hooks WooCommerce directly.
 */
class Order_Link {

	/**
	 * Accepted as before; the notes read neither.
	 *
	 * @param Requests_Repository $requests The requests table.
	 * @param Settings|null       $settings The plugin's settings.
	 */
	public function __construct( Requests_Repository $requests, ?Settings $settings = null ) {
		unset( $requests, $settings );
	}

	public function init() {
		add_action( 'careback_request_created', array( $this, 'note_created' ), 10, 2 );
		add_action( 'careback_status_changed', array( $this, 'note_status' ), 10, 4 );
	}

	public static function created_note( $request_id, array $data ) {
		$names = array();
		foreach ( (array) $data['items'] as $item ) {
			$names[] = $item['name'] . ' x' . $item['quantity'];
		}

		return sprintf(
			/* translators: 1: request reference, 2: classification, 3: item list. */
			__( 'Request #%1$s created (%2$s): %3$s', 'careback' ),
			$request_id,
			$data['type'],
			implode( ', ', $names )
		);
	}

	public static function status_note( $request_id, $status, $previous ) {
		return sprintf(
			/* translators: 1: request reference, 2: previous status, 3: new status. */
			__( 'Request #%1$s: %2$s → %3$s', 'careback' ),
			$request_id,
			$previous,
			$status
		);
	}

	public function note_created( $request_id, array $data ) {
		$this->add_note( (int) $data['order_id'], self::created_note( $request_id, $data ) );
	}

	public function note_status( $request_id, $status, $previous, $request ) {
		$this->add_note( (int) $request['order_id'], self::status_note( $request_id, $status, $previous ) );
	}

	private function add_note( $order_id, $note ) {
		if ( ! Plugin::woocommerce_active() ) {
			return;
		}

		$order = wc_get_order( $order_id );
		if ( $order instanceof \WC_Order ) {
			$order->add_order_note( $note );
		}
	}
}