feat: applications by destination statistics

addresses #869dv9fh6

src/Controller/Administrative/Statistics/ApplicationsByDestinationController.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Controller\Administrative\Statistics;
+
+use App\Form\StatisticsFilterType;
+use App\Repository\ApplicationRepository;
+use App\Service\Common\StatisticsFilterHandler;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Attribute\Route;
+use Symfony\Component\Security\Http\Attribute\IsGranted;
+
+class ApplicationsByDestinationController extends AbstractController
+{
+    public function __construct(
+        private readonly StatisticsFilterHandler $filterHandler,
+        private readonly ApplicationRepository $applicationRepository,
+    ) {
+    }
+
+    #[Route('/administrative/statistics/applications-by-destination', name: 'app_administrative_statistics_applications_by_destination')]
+    #[IsGranted('ROLE_ADMINISTRATIVE')]
+    public function index(Request $request): Response
+    {
+        $filterDto = $this->filterHandler->getFilterSettings();
+
+        $form = $this->createForm(StatisticsFilterType::class, $filterDto);
+        $form->handleRequest($request);
+
+        if ($form->isSubmitted() && $form->isValid()) {
+            $filterDto = $this->filterHandler->handleRequest($form);
+        }
+
+        $statistics = $this->applicationRepository->getApplicationsByDestination(
+            $filterDto->getDateFrom(),
+            $filterDto->getDateTo(),
+        );
+
+        return $this->render('administrative/statistics/applications_by_destination.html.twig', [
+            'form' => $form->createView(),
+            'filterDto' => $filterDto,
+            'statistics' => $statistics,
+        ]);
+    }
+}

src/Menu/AdminMenuBuilder.php

@@ -136,6 +136,12 @@ class AdminMenuBuilder extends AbstractMenuBuilder
                 'title' => 'Bewertungen nach Destination',
             ],
         ]);
+        $statisticsMenu->addChild('Bewerbungen pro Destination', [
+            'route' => 'app_administrative_statistics_applications_by_destination',
+            'linkAttributes' => [
+                'title' => 'Bewerbungen pro Destination',
+            ],
+        ]);
         $settingsMenu = $menu->addChild('Einstellungen', [
             'linkAttributes' => [
                 'title' => 'Einstellungen',

src/Menu/ManagerMenuBuilder.php

@@ -117,6 +117,12 @@ class ManagerMenuBuilder extends AbstractMenuBuilder
                 'title' => 'Bewertungen nach Destination',
             ],
         ]);
+        $statisticsMenu->addChild('Bewerbungen pro Destination', [
+            'route' => 'app_administrative_statistics_applications_by_destination',
+            'linkAttributes' => [
+                'title' => 'Bewerbungen pro Destination',
+            ],
+        ]);
         $settingsMenu = $menu->addChild('Einstellungen', [
             'linkAttributes' => [
                 'title' => 'Einstellungen',

src/Repository/ApplicationRepository.php

@@ -7,6 +7,7 @@ use App\Entity\Assignment;
 use App\Entity\Teamer;
 use App\Model\ApplicationFilterDto;
 use App\Model\AssignmentFilterDto;
+use App\Repository\Filter\SeasonPeriodFilter;
 use App\Repository\Traits\QueryHelperTrait;
 use Carbon\CarbonPeriodImmutable;
 use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
@@ -250,4 +251,69 @@ class ApplicationRepository extends ServiceEntityRepository
             ->getSingleScalarResult()
         ;
     }
+
+    /**
+     * The raw tally grouped by normalized hotel code, split by application status.
+     *
+     * Mirrors DispositionRepository::getFeedbackStatisticsByNormalizedHotelCodeQuery() - the
+     * "Bewerbungen pro Destination" screen sits next to "Feedback pro Destination" and means the
+     * same thing by a destination and a season, so the normalization and the date filter are the
+     * shared ones.
+     */
+    public function getApplicationsByDestinationQuery(
+        ?\DateTimeImmutable $dateFrom = null,
+        ?\DateTimeImmutable $dateTo = null,
+    ): Query {
+        $qb = $this->createQueryBuilder('application');
+
+        // Normalize hotel code: strip SER prefix to get base 3-char code
+        $normalizedHotelCode = "CASE WHEN destination.hotelCode LIKE 'SER%' THEN SUBSTRING(destination.hotelCode, 4, 3) ELSE SUBSTRING(destination.hotelCode, 1, 3) END";
+
+        $qb
+            ->select(
+                $normalizedHotelCode.' AS hotelCode',
+                'SUM(CASE WHEN application.status = :statusNew THEN 1 ELSE 0 END) AS newCount',
+                'SUM(CASE WHEN application.status = :statusPending THEN 1 ELSE 0 END) AS pendingCount',
+                'SUM(CASE WHEN application.status = :statusRejected THEN 1 ELSE 0 END) AS rejectedCount',
+                'COUNT(application.id) AS totalCount'
+            )
+            ->innerJoin('application.assignment', 'assignment')
+            ->innerJoin('assignment.destination', 'destination')
+            ->setParameter('statusNew', Application::STATUS_NEW)
+            ->setParameter('statusPending', Application::STATUS_PENDING)
+            ->setParameter('statusRejected', Application::STATUS_REJECTED)
+            ->groupBy('hotelCode')
+            ->orderBy('totalCount', 'DESC')
+            ->addOrderBy('hotelCode', 'ASC')
+        ;
+
+        SeasonPeriodFilter::apply($qb, $dateFrom, $dateTo);
+
+        return $qb->getQuery();
+    }
+
+    /**
+     * Returns application counts grouped by normalized hotel code (base 3-char code),
+     * split into the three application statuses plus a total.
+     *
+     * @return array<int, array{
+     *     hotelCode: string,
+     *     new: int,
+     *     pending: int,
+     *     rejected: int,
+     *     total: int
+     * }>
+     */
+    public function getApplicationsByDestination(
+        ?\DateTimeImmutable $dateFrom = null,
+        ?\DateTimeImmutable $dateTo = null,
+    ): array {
+        return array_map(static fn (array $row): array => [
+            'hotelCode' => $row['hotelCode'],
+            'new' => (int) $row['newCount'],
+            'pending' => (int) $row['pendingCount'],
+            'rejected' => (int) $row['rejectedCount'],
+            'total' => (int) $row['totalCount'],
+        ], $this->getApplicationsByDestinationQuery($dateFrom, $dateTo)->getResult());
+    }
 }