fix: ensure drop-offs are submitted when same as pickups

src/Form/Service/ParticipantDropOffFieldHandler.php

@@ -13,7 +13,7 @@ use App\Form\Service\Abstract\AbstractParticipantFieldHandler;
  *
  * Drop-off behavior depends on the transportation combination:
  * - BUS+BUS: drop-off is gated behind a "differentDropOff" checkbox.
- *   When unchecked, BusProNet defaults to the same location as the pickup.
+ *   When unchecked, the system assigns the same location as the pickup.
  * - PKW+BUS: drop-off is shown directly (no pickup field, no checkbox needed).
  * - BUS+PKW / PKW+PKW: no drop-off applicable, fields are cleared.
  */
@@ -54,14 +54,15 @@ class ParticipantDropOffFieldHandler extends AbstractParticipantFieldHandler
             return;
         }
 
-        if ($hasOutboundBus) {
+        if (true === $hasOutboundBus) {
             // BUS+BUS: gated by differentDropOff checkbox
-            $checkboxValue = $this->getFieldValue($submittedData, 'differentDropOff');
+            $isChecked = $this->normalizeCheckboxValue($this->getFieldValue($submittedData, 'differentDropOff'));
-            $isChecked = true === $checkboxValue || '1' === $checkboxValue || 1 === $checkboxValue;
 
             if (false === $isChecked) {
-                $participant->dropOff = null;
                 $participant->differentDropOff = false;
+                $participant->dropOff = null !== $participant->pickup
+                    ? ($bookingDto->travel->dropOffs[$participant->pickup->id] ?? null)
+                    : null;
 
                 return;
             }

tests/Form/Service/ParticipantDropOffFieldHandlerTest.php

@@ -74,7 +74,36 @@ class ParticipantDropOffFieldHandlerTest extends TestCase
         $this->assertTrue($participant->differentDropOff);
     }
 
-    public function testBusBusCheckboxUncheckedClearsDropOff(): void
+    public function testBusBusCheckboxUncheckedAssignsMatchingDropOff(): void
+    {
+        $dropOff = $this->createDropOff(10, 'Berlin Hbf');
+        $pickup = new Pickup();
+        $pickup->id = 10;
+        $pickup->city = 'Berlin Hbf';
+
+        $bookingDto = $this->createBookingDto(
+            DirectionMapper::SUBTYPE_BUS_API,
+            DirectionMapper::SUBTYPE_BUS_API,
+            [$dropOff]
+        );
+
+        $participant = $bookingDto->getParticipant(0);
+        $participant->pickup = $pickup;
+        $participant->differentDropOff = true;
+
+        $submittedData = [
+            'differentDropOff' => false,
+            'dropOff' => '10',
+        ];
+
+        $this->handler->processField($submittedData, $bookingDto, 0);
+
+        $this->assertNotNull($participant->dropOff);
+        $this->assertSame(10, $participant->dropOff->id);
+        $this->assertFalse($participant->differentDropOff);
+    }
+
+    public function testBusBusCheckboxUncheckedNoPickupKeepsDropOffNull(): void
     {
         $dropOff = $this->createDropOff(10, 'Berlin Hbf');
         $bookingDto = $this->createBookingDto(
@@ -84,12 +113,36 @@ class ParticipantDropOffFieldHandlerTest extends TestCase
         );
 
         $participant = $bookingDto->getParticipant(0);
-        $participant->dropOff = $dropOff;
+        $participant->pickup = null;
-        $participant->differentDropOff = true;
+
+        $submittedData = [
+            'differentDropOff' => false,
+        ];
+
+        $this->handler->processField($submittedData, $bookingDto, 0);
+
+        $this->assertNull($participant->dropOff);
+        $this->assertFalse($participant->differentDropOff);
+    }
+
+    public function testBusBusCheckboxUncheckedPickupWithNoMatchingDropOff(): void
+    {
+        $dropOff = $this->createDropOff(10, 'Berlin Hbf');
+        $pickup = new Pickup();
+        $pickup->id = 99;
+        $pickup->city = 'Unknown';
+
+        $bookingDto = $this->createBookingDto(
+            DirectionMapper::SUBTYPE_BUS_API,
+            DirectionMapper::SUBTYPE_BUS_API,
+            [$dropOff]
+        );
+
+        $participant = $bookingDto->getParticipant(0);
+        $participant->pickup = $pickup;
 
         $submittedData = [
             'differentDropOff' => false,
-            'dropOff' => '10',
         ];
 
         $this->handler->processField($submittedData, $bookingDto, 0);