feat: split nights off an accommodation booking as separate periods

addresses #869f6z36v

src/Service/AccommodationBookingBreakdownCalculator.php

@@ -26,7 +26,15 @@ class AccommodationBookingBreakdownCalculator
     {
         $breakdown = $booking->getPriceBreakdown() ?? $this->computeCurrent($booking);
 
-        return null !== $breakdown ? $this->withDiscounts($booking, $breakdown) : null;
+        if (null === $breakdown) {
+            return null;
+        }
+
+        // Snapshots frozen before split-off periods existed (pricing version 1) read as a
+        // booking without any, so templates only ever handle one shape.
+        $breakdown += ['periods' => [], 'periodsTotal' => 0];
+
+        return $this->withDiscounts($booking, $breakdown);
     }
 
     /**
@@ -100,6 +108,10 @@ class AccommodationBookingBreakdownCalculator
      * Calculates against the current catalog. Use only while creating or explicitly editing
      * a booking, or as a compatibility fallback for records created before price snapshots.
      *
+     * The catalog prices the main period only; the split-off periods add their lines on top,
+     * so `total` is the grand total the discounts are taken from. The price rows are loaded for
+     * the whole stay, which the includedPax floor and the short-term surcharge are judged on.
+     *
      * @return array<string, mixed>|null
      */
     public function computeCurrent(AccommodationBooking $booking): ?array
@@ -118,16 +130,40 @@ class AccommodationBookingBreakdownCalculator
             $dateTo,
         );
 
-        return $this->priceCalculator->calculateFromSnapshots(
+        $breakdown = $this->priceCalculator->calculateFromSnapshots(
             $booking->getPaxCount(),
             $booking->getMinorsCount(),
-            $booking->getNights(),
+            $booking->getMainNights(),
+            $booking->getMainDateFrom() ?? $dateFrom,
+            $booking->getMainDateTo() ?? $dateTo,
             $dateFrom,
-            $dateTo,
+            $booking->getNights(),
             $prices,
             $booking->getBoardServicePrice(),
             $booking->getAdditionalServices(),
             $accommodation->getCurrency(),
         );
+
+        $periods = [];
+        foreach (array_filter([$booking->getLeadingPeriod(), $booking->getTrailingPeriod()]) as $period) {
+            $periods[] = [
+                'position' => $period->getPosition()->value,
+                'label' => $period->getLabel(),
+                'dateFrom' => $period->getDateFrom()->format('Y-m-d'),
+                'dateTo' => $period->getDateTo()->format('Y-m-d'),
+                'nights' => $period->getNights(),
+                'lines' => $period->getLines(),
+                'total' => $period->getTotal(),
+            ];
+        }
+
+        $periodsTotal = $booking->getPeriodsTotal();
+
+        return [
+            ...$breakdown,
+            'periods' => $periods,
+            'periodsTotal' => $periodsTotal,
+            'total' => $breakdown['total'] + $periodsTotal,
+        ];
     }
 }