fix: validate newly entered phone numbers

src/Form/Model/VoucherPurchaseDto.php

@@ -8,6 +8,7 @@ use App\BusProNet\Model\Address;
 use App\BusProNet\Model\PersonalData;
 use App\BusProNet\Model\VoucherPaymentMethod;
 use App\BusProNet\Model\VoucherTemplate;
+use App\Validator\Constraints as AppAssert;
 use Symfony\Component\Validator\Constraints as Assert;
 
 /**
@@ -69,10 +70,24 @@ class VoucherPurchaseDto
     #[Assert\Valid]
     public Address $address;
 
+    #[Assert\When(
+        expression: 'this.isPhoneNewlyEntered()',
+        constraints: [new AppAssert\PhoneNumber()],
+        groups: ['voucher_step_2'],
+    )]
     public ?string $phone = null;
 
+    #[Assert\When(
+        expression: 'this.isMobileNewlyEntered()',
+        constraints: [new AppAssert\PhoneNumber()],
+        groups: ['voucher_step_2'],
+    )]
     public ?string $mobile = null;
 
+    // The numbers prefilled from BusPro, which are exempt from PhoneNumber.
+    public ?string $loadedPhone = null;
+    public ?string $loadedMobile = null;
+
     #[Assert\NotBlank(message: 'Bitte angeben', groups: ['voucher_step_2'])]
     #[Assert\Email(message: 'Bitte eine gültige Adresse angeben', mode: 'strict', groups: ['voucher_step_2'])]
     public ?string $email = null;
@@ -90,6 +105,16 @@ class VoucherPurchaseDto
         $this->address->country = 'D';
     }
 
+    public function isPhoneNewlyEntered(): bool
+    {
+        return AppAssert\PhoneNumber::isNewlyEntered($this->phone, $this->loadedPhone);
+    }
+
+    public function isMobileNewlyEntered(): bool
+    {
+        return AppAssert\PhoneNumber::isNewlyEntered($this->mobile, $this->loadedMobile);
+    }
+
     public function getBuyerFullName(): string
     {
         return trim(sprintf('%s %s', $this->firstName ?? '', $this->lastName ?? ''));
@@ -119,6 +144,8 @@ class VoucherPurchaseDto
         $this->address->country ??= 'D';
         $this->phone = $personalData->communication->phone;
         $this->mobile = $personalData->communication->mobile;
+        $this->loadedPhone = $this->phone;
+        $this->loadedMobile = $this->mobile;
         $this->email = $loginEmail;
     }
 }