<?php

declare(strict_types=1);

namespace LinkCheckup\Features\LinkLists;

use LinkCheckup\Shared\Links\Link;
use LinkCheckup\Shared\Links\LinkDetailPresenter;
use LinkCheckup\Shared\Links\Outcome;
use WP_Error;
use WP_REST_Request;

use function in_array;

final class LinkDetailEndpoint {

	public function __construct(
		private LinkDetailPresenter $link_detail_presenter,
		private RequestedLink $requested_link
	) {
	}

	/**
	 * @return array<string, mixed>|WP_Error
	 * @param WP_REST_Request<array<string, mixed>> $request
	 */
	public function show_detail( WP_REST_Request $request ): array|WP_Error {
		$link_to_show = $this->requested_link->find( $request );

		if ( null === $link_to_show ) {
			return LinkNotFound::missing();
		}

		if ( ! $this->is_in_problem_lists( $link_to_show ) ) {
			return LinkNotFound::not_listed();
		}

		return $this->link_detail_presenter->present( $link_to_show );
	}

	private function is_in_problem_lists( Link $link ): bool {
		$has_problem_verdict = in_array(
			$link->verdict,
			LinkStatusFilter::PROBLEM_VERDICTS,
			true
		);

		return Outcome::Listed === $link->outcome && $has_problem_verdict;
	}
}