feat: teamer season disposition count in info modal

addresses #869dv94n4

src/Service/Teamer/SeasonDispositionCounter.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace App\Service\Teamer;
+
+use App\Config\SeasonCalendar;
+use App\Entity\Teamer;
+use App\Repository\DispositionRepository;
+
+/**
+ * Tallies a teamer's dispositions per season for the info modal.
+ *
+ * Each non-called-off disposition is bucketed by the season its assignment starts in
+ * (see SeasonCalendar); assignments starting outside any season window land in a single
+ * "außerhalb der Saison" bucket that is always listed last.
+ */
+class SeasonDispositionCounter
+{
+    private const OFF_SEASON = 'off_season';
+
+    public function __construct(
+        private readonly DispositionRepository $dispositionRepository,
+        private readonly SeasonCalendar $seasonCalendar,
+    ) {
+    }
+
+    /**
+     * @return list<array{label: string, count: int}> newest season first, off-season last
+     */
+    public function countPerSeason(Teamer $teamer): array
+    {
+        $counts = [];
+
+        foreach ($this->dispositionRepository->findDispositionSeasonDatesByTeamer($teamer) as $row) {
+            if (empty($row['seasonDate'])) {
+                continue;
+            }
+
+            $seasonYear = $this->seasonCalendar->seasonYearFor(new \DateTimeImmutable($row['seasonDate']));
+            $key = $seasonYear ?? self::OFF_SEASON;
+            $counts[$key] = ($counts[$key] ?? 0) + 1;
+        }
+
+        $offSeasonCount = $counts[self::OFF_SEASON] ?? null;
+        unset($counts[self::OFF_SEASON]);
+        krsort($counts);
+
+        $rows = [];
+        foreach ($counts as $seasonYear => $count) {
+            $rows[] = ['label' => $this->seasonCalendar->label((int) $seasonYear), 'count' => $count];
+        }
+
+        if (null !== $offSeasonCount) {
+            $rows[] = ['label' => $this->seasonCalendar->label(null), 'count' => $offSeasonCount];
+        }
+
+        return $rows;
+    }
+}