<?php

namespace App\Services;

use App\Jobs\ImportEventsJob;
use App\Models\Source;
use Illuminate\Support\Facades\Http;

/**
 * EventImportService
 * 
 * Service-Klasse für Event-Import-Logik.
 * Orchestriert den Import von verschiedenen Quellen.
 */
class EventImportService
{
    /**
     * Importiere Events von allen aktiven Quellen
     */
    public function importFromAllSources($synchronous = false)
    {
        $sources = Source::active()->get();

        foreach ($sources as $source) {
            if ($synchronous) {
                ImportEventsJob::dispatchSync($source);
            } else {
                ImportEventsJob::dispatch($source);
            }
        }

        return count($sources);
    }

    /**
     * Importiere von einer spezifischen Quelle
     */
    public function importFromSource(Source $source, $synchronous = false)
    {
        if ($synchronous) {
            ImportEventsJob::dispatchSync($source);
        } else {
            ImportEventsJob::dispatch($source);
        }
    }

    /**
     * Beispiel: API-Client für Stadt Dresden
     * 
     * Hinweis: Dies müsste in der fetchExternalEvents-Methode 
     * des ImportEventsJob verwendet werden.
     */
    public function fetchFromDresdenCityAPI($limit = 1000)
    {
        $response = Http::withHeaders([
            'Accept' => 'application/json',
        ])->get('https://api.stadt-dresden.de/events', [
            'limit' => $limit,
            'offset' => 0,
        ]);

        if ($response->failed()) {
            throw new \Exception("Dresden API request failed: " . $response->status());
        }

        return $response->json('data');
    }

    /**
     * Beispiel: Web-Scraping mit Symfony/DomCrawler
     * 
     * Installiere: composer require symfony/dom-crawler symfony/http-client
     */
    public function scrapeFromWebsite($url)
    {
        $client = new \Symfony\Component\HttpClient\HttpClient();
        $response = $client->request('GET', $url);
        $html = $response->getContent();

        // Verwende DomCrawler zum Parsen
        $crawler = new \Symfony\Component\DomCrawler\Crawler($html);

        $events = [];
        $crawler->filter('.event-item')->each(function ($node) use (&$events) {
            $events[] = [
                'title' => $node->filter('.event-title')->text(),
                'description' => $node->filter('.event-description')->text(),
                'location' => $node->filter('.event-location')->text(),
                'date' => $node->filter('.event-date')->attr('data-date'),
            ];
        });

        return $events;
    }
}