<?php
declare(strict_types=1);

class TaskLookupService
{
    private TaskLookupRepository $lookupRepo;

    public function __construct(TaskLookupRepository $lookupRepo)
    {
        $this->lookupRepo = $lookupRepo;
    }

    public function getAdminFormLookups(int $languageId): array
    {
        $languageId = $languageId > 0 ? $languageId : 1;

        return [
            'task_categories' => $this->safeFetch('task_categories', fn(): array => $this->lookupRepo->listTaskCategories(true)),
            'mandants' => $this->safeFetch('mandants', fn(): array => $this->lookupRepo->listMandants()),
            'departments' => $this->safeFetch('departments', fn(): array => $this->lookupRepo->listDepartments()),
            'roles' => $this->safeFetch('roles', fn(): array => $this->lookupRepo->listRoles()),
            'einrichts' => $this->safeFetch('einrichts', fn(): array => $this->lookupRepo->listEinrichts()),
            'fachbereiche' => $this->safeFetch('fachbereiche', fn(): array => $this->lookupRepo->listFachbereiche()),
            'contacts' => $this->safeFetch('contacts', fn(): array => $this->lookupRepo->listActiveContacts()),
            'knowledge_posts' => $this->safeFetch('knowledge_posts', fn(): array => $this->lookupRepo->listKnowledgePosts($languageId)),
        ];
    }

    public function getKnowledgePostTitleMapByIds(int $languageId, array $postIds): array
    {
        $languageId = $languageId > 0 ? $languageId : 1;

        try {
            return $this->lookupRepo->mapKnowledgePostTitlesByIds($languageId, $postIds);
        } catch (Throwable $throwable) {
            error_log('task_cert lookup fetch failed (knowledge_post_title_map): ' . $throwable->getMessage());
            return [];
        }
    }

    private function safeFetch(string $lookupName, callable $fetcher): array
    {
        try {
            $rows = $fetcher();
            return is_array($rows) ? $rows : [];
        } catch (Throwable $throwable) {
            error_log('task_cert lookup fetch failed (' . $lookupName . '): ' . $throwable->getMessage());
            return [];
        }
    }
}