feat: delete orphaned future snapshots after xml sync

tests/Service/TravelSnapshotServiceTest.php

@@ -450,6 +450,41 @@ class TravelSnapshotServiceTest extends TestCase
         $this->assertSame(['processed' => 0, 'updated' => 0, 'failed' => 0], $result);
     }
 
+    public function testPurgeOrphanedFutureSnapshotsReturnsZeroForEmptyList(): void
+    {
+        $this->snapshotRepository
+            ->expects($this->once())
+            ->method('deleteOrphanedFutureSnapshots')
+            ->with([], $this->isInstanceOf(\DateTimeImmutable::class))
+            ->willReturn(0);
+
+        $result = $this->service->purgeOrphanedFutureSnapshots([]);
+
+        $this->assertSame(0, $result);
+    }
+
+    public function testPurgeOrphanedFutureSnapshotsDelegatesWithCorrectArguments(): void
+    {
+        $activeIds = [100, 200, 300];
+
+        $this->snapshotRepository
+            ->expects($this->once())
+            ->method('deleteOrphanedFutureSnapshots')
+            ->with(
+                $activeIds,
+                $this->callback(function (\DateTimeImmutable $date) {
+                    $expected = new \DateTimeImmutable('today');
+
+                    return abs($date->getTimestamp() - $expected->getTimestamp()) < 5;
+                })
+            )
+            ->willReturn(3);
+
+        $result = $this->service->purgeOrphanedFutureSnapshots($activeIds);
+
+        $this->assertSame(3, $result);
+    }
+
     public function testGenerateMappingBuildsCorrectStructure(): void
     {
         $hotel = new Hotel();