not working inventory :c

Services/PetSkillService.cs

@@ -0,0 +1,63 @@
+using PetCompanion.Models;
+using PetCompanion.Repositories;
+
+namespace PetCompanion.Services
+{
+    public class PetSkillService
+    {
+        private readonly PetSkillRepository _petSkillRepository;
+        private readonly PetRepository _petRepository;
+
+        public PetSkillService(PetSkillRepository petSkillRepository, PetRepository petRepository)
+        {
+            _petSkillRepository = petSkillRepository;
+            _petRepository = petRepository;
+        }
+
+        public async Task<IEnumerable<PetSkill>> GetPetSkills(string petId, string userId)
+        {
+            var pet = _petRepository.GetPetById(petId, userId);
+            if (pet == null)
+                throw new Exception("Pet not found");
+
+            return await _petSkillRepository.GetPetSkills(petId);
+        }
+
+        public async Task<PetSkill> AllocateSkillPoint(string petId, string userId, int skillId)
+        {
+            var pet = _petRepository.GetPetById(petId, userId);
+            if (pet == null)
+                throw new Exception("Pet not found");
+
+            if (pet.SkillPoints <= 0)
+                throw new Exception("No skill points available");
+
+            var skills = await _petSkillRepository.GetPetSkills(petId);
+            var existingSkill = skills.FirstOrDefault(s => s.SkillId == skillId);
+
+            if (existingSkill != null)
+            {
+                if (existingSkill.CurrentTier == SkillTier.III)
+                    throw new Exception("Skill already at maximum tier");
+
+                existingSkill.CurrentTier++;
+                await _petSkillRepository.SavePetSkill(existingSkill);
+            }
+            else
+            {
+                existingSkill = new PetSkill
+                {
+                    PetId = petId,
+                    SkillId = skillId,
+                    CurrentTier = SkillTier.I
+                };
+                await _petSkillRepository.SavePetSkill(existingSkill);
+            }
+
+            pet.SkillPoints--;
+            _petRepository.UpdatePet(pet);
+
+            return existingSkill;
+        }
+    }
+}