fix: streamlined discount display in all breakdowns

tests/Service/AccommodationBookingServiceTest.php

@@ -522,21 +522,16 @@ class AccommodationBookingServiceTest extends TestCase
         $service->sendBookingConfirmedCustomerEmail($booking);
     }
 
-    public function testRefreshPriceSnapshotStoresDiscountedFinalTotal(): void
+    /**
+     * The discount arithmetic itself lives in — and is tested with —
+     * AccommodationBookingBreakdownCalculator; what matters here is that the raw breakdown is
+     * frozen and the stored total is the calculator's discounted one.
+     */
+    public function testRefreshPriceSnapshotStoresTheRawBreakdownAndTheDiscountedTotal(): void
     {
         $booking = new AccommodationBooking();
-        $booking->setAccommodationDiscount(10);
-        $booking->setBoardServiceDiscount(20);
-        $booking->setAdditionalServicesDiscount(50);
 
-        $breakdown = [
-            'total' => 12345,
-            'currency' => 'CHF',
-            'basePrice' => 8000,
-            'additionalPersonsPrice' => 2000,
-            'boardPrice' => 1000,
-            'servicesPrice' => 500,
-        ];
+        $breakdown = ['total' => 12345, 'currency' => 'CHF'];
 
         $breakdownCalculator = $this->createMock(AccommodationBookingBreakdownCalculator::class);
         $breakdownCalculator
@@ -544,13 +539,16 @@ class AccommodationBookingServiceTest extends TestCase
             ->method('computeCurrent')
             ->with($booking)
             ->willReturn($breakdown);
+        $breakdownCalculator
+            ->method('withDiscounts')
+            ->with($booking, $breakdown)
+            ->willReturn($breakdown + ['discounts' => [], 'discountedTotal' => 10895]);
 
         $service = $this->createServiceWithAccommodation(breakdownCalculator: $breakdownCalculator);
         $service->refreshPriceSnapshot($booking);
 
-        // accommodation: (8000+2000)*10% = 1000, board: 1000*20% = 200, services: 500*50% = 250
-        self::assertSame($breakdown, $booking->getPriceBreakdown());
-        self::assertSame(12345 - 1000 - 200 - 250, $booking->getTotalPrice());
+        self::assertSame($breakdown, $booking->getPriceBreakdown(), 'the derived keys must not be persisted');
+        self::assertSame(10895, $booking->getTotalPrice());
         self::assertSame('CHF', $booking->getPricingCurrency());
         self::assertSame(1, $booking->getPricingVersion());
     }