update families

src/main/java/com/faf223/expensetrackerfaf/service/FamilyService.java

@@ -1,13 +1,67 @@
 package com.faf223.expensetrackerfaf.service;
 
+import com.faf223.expensetrackerfaf.model.Credential;
+import com.faf223.expensetrackerfaf.model.Family;
+import com.faf223.expensetrackerfaf.model.User;
+import com.faf223.expensetrackerfaf.repository.CredentialRepository;
 import com.faf223.expensetrackerfaf.repository.FamilyRepository;
+import com.faf223.expensetrackerfaf.repository.UserRepository;
+import com.faf223.expensetrackerfaf.util.exceptions.UserNotAuthenticatedException;
+import com.faf223.expensetrackerfaf.util.exceptions.UserNotFoundException;
 import lombok.RequiredArgsConstructor;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.stereotype.Service;
 
+import java.util.List;
+import java.util.Optional;
+
 @Service
 @RequiredArgsConstructor
 public class FamilyService {
 
     private final FamilyRepository familyRepository;
+    private final CredentialRepository credentialRepository;
+    private final UserRepository userRepository;
+
+    public List<Family> getFamilies() {
+        return familyRepository.findAll();
+    }
+
+    public void createOrUpdate(Family family) {
+        familyRepository.save(family);
+    }
+
+    public Family getFamilyById(long id) {
+        return familyRepository.findById(id).orElse(null);
+    }
+
+    public boolean containsMember(Family family) {
+        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
+
+        if (authentication != null && authentication.getPrincipal() instanceof UserDetails userDetails) {
+
+            if(authentication.getAuthorities().stream().noneMatch(authority -> authority.getAuthority().equals("ADMIN"))) {
+
+                Optional<Credential> credential = credentialRepository.findByEmail(userDetails.getUsername());
+                if(credential.isEmpty()) throw new UserNotFoundException("The user has not been found");
+                Optional<User> user = userRepository.findById(credential.get().getUser().getUserUuid());
+                if(user.isEmpty()) throw new UserNotFoundException("The user has not been found");
+
+                return user.get().getFamily().equals(family);
+
+            }
+
+            return true;
+
+        }
+
+        throw new UserNotAuthenticatedException("You are not authenticated");
+    }
+
+    public void deleteFamilyById(long id) {
+        familyRepository.deleteById(id);
+    }
 
 }