<?php

namespace App\Controller;

use App\Service\AbsenceManager;
use App\Service\CalendarExportService;
use App\Service\CalendarService;
use DateTime;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Attribute\Route;

final class CalendarController extends AbstractController
{
    public function __construct(
        private readonly AbsenceManager $absenceManager,
        private readonly CalendarService $calendarService,
        private readonly CalendarExportService $calendarExportService,
        private readonly string $requiredApiKey
    ) {
    }

    #[Route('/', name: 'calendar_index')]
    public function index(Request $request): Response
    {
        if (!$request->query->has('key') || $request->query->get('key') !== $this->requiredApiKey) {
            return new Response('Kein Zugriff', Response::HTTP_FORBIDDEN);
        }

        $startDate = (new DateTime())->format('Y-m-d');
        $endDate = (new DateTime('+90 days'))->format('Y-m-d');

        $absences = $this->absenceManager->getAbsencesForUser('tim.lappe@check24.de', new DateTime('-1 day'));

        $days = $this->calendarService->getAllDays($startDate, $endDate);
        $days = $this->calendarService->processAbsences($days, $absences);

        return $this->render('calendar/index.html.twig', [
            'startDate' => new DateTime($startDate),
            'endDate' => new DateTime($endDate),
            'days' => $days,
        ]);
    }
    
    #[Route('/cal', name: 'calendar_ics')]
    public function exportCalendarIcs(Request $request): Response
    {
        if (!$request->query->has('key') || $request->query->get('key') !== $this->requiredApiKey) {
            return new Response('Kein Zugriff', Response::HTTP_FORBIDDEN);
        }
        
        $startDate = (new DateTime())->format('Y-m-d');
        $endDate = (new DateTime('+180 days'))->format('Y-m-d');
        
        $absences = $this->absenceManager->getAbsencesForUser('tim.lappe@check24.de', new DateTime('-1 day'));
        
        $days = $this->calendarService->getAllDays($startDate, $endDate);
        $days = $this->calendarService->processAbsences($days, $absences);
        
        $icsContent = $this->calendarExportService->generateIcsContent($days, $absences);
        
        $response = new Response($icsContent);
        $response->headers->set('Content-Type', 'text/calendar; charset=utf-8');
        $response->headers->set('Content-Disposition', 'attachment; filename="work_calendar.ics"');
        
        return $response;
    }
}