feat: split booking between participants and applicant

addresses #869f2q1vu

src/Service/BookingEditPreFlightChecker.php

@@ -83,7 +83,7 @@ class BookingEditPreFlightChecker
             }
         }
 
-        if (false === $bookingDto->isInternalAgencyBooking() && true === $participant->isApplicant()) {
+        if (true === $bookingDto->isFirstParticipantApplicant() && true === $participant->isApplicant()) {
             foreach ($this->getMissingValueAddressLabels($participant) as $valueLabel) {
                 $valueLabels[] = $valueLabel;
             }

src/Service/BookingNewsletterOptIn.php

@@ -33,8 +33,8 @@ class BookingNewsletterOptIn
             $email = $currentUser->getEmail();
         }
 
-        if ((null === $email || '' === trim((string) $email)) && isset($bookingDto->participants[0])) {
-            $email = $bookingDto->participants[0]->email;
+        if (null === $email || '' === trim((string) $email)) {
+            $email = $this->resolveApplicantParticipant($bookingDto)?->email;
         }
 
         if (null === $email) {
@@ -46,9 +46,16 @@ class BookingNewsletterOptIn
         return false !== filter_var($normalizedEmail, FILTER_VALIDATE_EMAIL) ? $normalizedEmail : null;
     }
 
+    /**
+     * The person who is the booking's contact: participant[0] on an ordinary booking, and the
+     * separate applicant record when they do not travel along.
+     */
     public function resolveApplicantParticipant(BookingDto $bookingDto): ?ParticipantDto
     {
-        $participant = $bookingDto->participants[0] ?? null;
+        $participant = $bookingDto->applicantTravels
+            ? ($bookingDto->participants[0] ?? null)
+            : $bookingDto->applicant;
+
         if (null === $participant) {
             return null;
         }
@@ -63,7 +70,7 @@ class BookingNewsletterOptIn
     /**
      * Companions eligible for a third-party opt-in offer.
      *
-     * Children are excluded because they are allowed to share an adult's address, so subscribing
+     * Children are excluded because they carry the applicant's address by default, so subscribing
      * them would mail somebody else and would rest on a minor's consent. Deliberately no consent
      * lookups here: whether the checkbox appears must not disclose who is already subscribed.
      *
@@ -75,7 +82,13 @@ class BookingNewsletterOptIn
         $seenEmails = [];
 
         foreach ($bookingDto->participants as $participant) {
-            if (true === $participant->isApplicant() || true === $participant->isChild()) {
+            // participant[0] is only the booking contact when the applicant travels along; on a
+            // split booking they are an ordinary companion like everyone else.
+            if (true === $participant->isApplicant() && true === $bookingDto->applicantTravels) {
+                continue;
+            }
+
+            if (true === $participant->isChild()) {
                 continue;
             }
 

src/Service/ParticipantCardAssembler.php

@@ -99,7 +99,7 @@ class ParticipantCardAssembler
 
         if ('' === $name) {
             // For internal agency bookings, first participant is not the applicant
-            if (0 === $index && false === $bookingDto->isInternalAgencyBooking()) {
+            if (0 === $index && $bookingDto->isFirstParticipantApplicant()) {
                 return 'Anmelder:in';
             }
 

src/Service/ParticipantDataPrefiller.php

@@ -135,6 +135,33 @@ class ParticipantDataPrefiller
     /**
      * Fills the participant DTO with generated dummy personal data.
      */
+    /**
+     * Fills the applicant DTO with generated dummy contact data.
+     *
+     * Same `#KUN#` shortcut as fillDummyParticipant(), but applicant-shaped: the applicant has to
+     * be a complete adult, so gender and nationality are filled too and the date of birth is well
+     * clear of 18. Used for manual testing against the BusPro test system.
+     */
+    public function fillDummyApplicant(ParticipantDto $applicant): void
+    {
+        $now = CarbonImmutable::now();
+
+        $applicant->firstName = 'Probeelternteil';
+        $applicant->lastName = sprintf('Elternteil %s', $now->format('H:i'));
+        $applicant->gender = 'W';
+        $applicant->nationality = 'D';
+        $applicant->mobile = '0171/222222';
+        $applicant->email = '[email protected]';
+        $applicant->dateOfBirth = $now->subYears(45)->toImmutable();
+
+        $address = new Address();
+        $address->street = 'Probeweg 7';
+        $address->postCode = '99999';
+        $address->city = 'MusterOrt';
+        $address->country = 'D';
+        $applicant->address = $address;
+    }
+
     public function fillDummyParticipant(ParticipantDto $participant, int $participantIndex): void
     {
         $participantNumber = $participantIndex + 1;
@@ -150,7 +177,7 @@ class ParticipantDataPrefiller
         $address->street = 'Musterstr. 123';
         $address->postCode = '99999';
         $address->city = 'MusterOrt';
-        $address->country = 'DE';
+        $address->country = 'D';
         $participant->address = $address;
     }
 }

src/Service/ParticipantFormSupport.php

@@ -40,6 +40,37 @@ class ParticipantFormSupport
         return $participant;
     }
 
+    /**
+     * Builds the traveller that stays behind at index 0 when the applicant stops travelling.
+     *
+     * Only the booking-structural fields carry over. Everything service-shaped was derived from
+     * the applicant's age and no longer applies to whoever actually travels in that slot.
+     */
+    public function createBlankTravellerFrom(ParticipantDto $previous): ParticipantDto
+    {
+        $traveller = new ParticipantDto();
+        $traveller->index = 0;
+        $traveller->assignedRoomId = $previous->assignedRoomId;
+
+        return $traveller;
+    }
+
+    /**
+     * Drops a family insurance selection from every participant.
+     *
+     * Used when a booking turns into a split booking, where family insurance is not offered.
+     */
+    public function clearFamilyInsurance(BookingDto $bookingDto): void
+    {
+        foreach ($bookingDto->participants as $participant) {
+            if (true === $participant->insurance?->familyInsurance) {
+                $participant->insurance = null;
+            }
+
+            $participant->bulkInsuranceBooking = false;
+        }
+    }
+
     public function createParticipantEditDto(BookingDto $bookingDto, int $index): ParticipantEditDto
     {
         return new ParticipantEditDto(