<?php

declare(strict_types=1);

namespace LinkCheckup\Features\LinkLists;

use LinkCheckup\Shared\Links\LinkPresenter;
use WP_Error;
use WP_REST_Request;

final class ListLinksEndpoint {

	public function __construct(
		private LinkListQueryReader $link_list_query_reader,
		private LinkListRepository $link_list_repository,
		private LinkPresenter $link_presenter
	) {
	}

	/**
	 * @return array{
	 *     items: list<array<string, int|string|bool|null>>,
	 *     total: int
	 * }|WP_Error
	 * @param WP_REST_Request<array<string, mixed>> $request
	 */
	public function list_page( WP_REST_Request $request ): array|WP_Error {
		$query = $this->link_list_query_reader->read( $request );

		if ( $query instanceof WP_Error ) {
			return $query;
		}

		$items = array();

		foreach ( $this->link_list_repository->page_of( $query ) as $link ) {
			$items[] = $this->link_presenter->present( $link );
		}

		return array(
			'items' => $items,
			'total' => $this->link_list_repository->count_matching( $query ),
		);
	}
}