Pet adoption appointments (currently has a small issue)

backend/src/main/java/com/petshop/backend/controller/AdoptionController.java

@@ -2,6 +2,7 @@ package com.petshop.backend.controller;
 
 import com.petshop.backend.dto.adoption.AdoptionRequest;
 import com.petshop.backend.dto.adoption.AdoptionResponse;
+import com.petshop.backend.dto.adoption.CustomerAdoptionRequest;
 import com.petshop.backend.dto.common.BulkDeleteRequest;
 import com.petshop.backend.entity.User;
 import com.petshop.backend.repository.UserRepository;
@@ -81,6 +82,15 @@ public class AdoptionController {
         return ResponseEntity.status(HttpStatus.CREATED).body(adoptionService.createAdoption(request));
     }
 
+    @PostMapping("/request")
+    @PreAuthorize("hasAnyRole('CUSTOMER', 'ADMIN')")
+    public ResponseEntity<AdoptionResponse> requestAdoption(@Valid @RequestBody CustomerAdoptionRequest request) {
+        User user = AuthenticationHelper.getAuthenticatedUser(userRepository);
+        return ResponseEntity.status(HttpStatus.CREATED).body(
+                adoptionService.requestAdoption(user.getId(), request.getPetId(), request.getEmployeeId(), request.getSourceStoreId())
+        );
+    }
+
     @PutMapping("/{id}")
     @PreAuthorize("hasAnyRole('STAFF', 'ADMIN')")
     public ResponseEntity<AdoptionResponse> updateAdoption(

backend/src/main/java/com/petshop/backend/dto/adoption/CustomerAdoptionRequest.java

@@ -0,0 +1,37 @@
+package com.petshop.backend.dto.adoption;
+
+import jakarta.validation.constraints.NotNull;
+
+public class CustomerAdoptionRequest {
+
+    @NotNull(message = "Pet ID is required")
+    private Long petId;
+
+    private Long employeeId;
+
+    private Long sourceStoreId;
+
+    public Long getPetId() {
+        return petId;
+    }
+
+    public void setPetId(Long petId) {
+        this.petId = petId;
+    }
+
+    public Long getEmployeeId() {
+        return employeeId;
+    }
+
+    public void setEmployeeId(Long employeeId) {
+        this.employeeId = employeeId;
+    }
+
+    public Long getSourceStoreId() {
+        return sourceStoreId;
+    }
+
+    public void setSourceStoreId(Long sourceStoreId) {
+        this.sourceStoreId = sourceStoreId;
+    }
+}

backend/src/main/java/com/petshop/backend/service/AdoptionService.java

@@ -147,6 +147,33 @@ public class AdoptionService {
         return mapToResponse(adoption);
     }
 
+    @Transactional
+    public AdoptionResponse requestAdoption(Long customerId, Long petId, Long employeeId, Long sourceStoreId) {
+        Pet pet = petRepository.findById(petId)
+                .orElseThrow(() -> new ResourceNotFoundException("Pet not found with id: " + petId));
+        User customer = userRepository.findById(customerId)
+                .orElseThrow(() -> new ResourceNotFoundException("Customer not found with id: " + customerId));
+        User employee = resolveAdoptionEmployee(employeeId);
+        StoreLocation sourceStore = sourceStoreId != null
+                ? storeRepository.findById(sourceStoreId)
+                        .orElseThrow(() -> new ResourceNotFoundException("Store not found with id: " + sourceStoreId))
+                : null;
+
+        validatePetAvailability(pet, null, null);
+
+        Adoption adoption = new Adoption();
+        adoption.setPet(pet);
+        adoption.setCustomer(customer);
+        adoption.setEmployee(employee);
+        adoption.setSourceStore(sourceStore);
+        adoption.setAdoptionDate(null);
+        adoption.setAdoptionStatus(ADOPTION_STATUS_PENDING);
+
+        adoption = adoptionRepository.save(adoption);
+        syncPetStatus(pet, ADOPTION_STATUS_PENDING, adoption.getAdoptionId(), customer);
+        return mapToResponse(adoption);
+    }
+
     @Transactional
     public void deleteAdoption(Long id) {
         if (!adoptionRepository.existsById(id)) {