feat: Disconnect couple

src/main/java/com/universe/uni/controller/CoupleController.java

@@ -2,8 +2,10 @@
 
 import org.springframework.http.HttpStatus;
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.ResponseStatus;
@@ -57,4 +59,11 @@ public CoupleConnectionResponseDto checkConnection(
 	) {
 		return coupleService.checkConnection(userId);
 	}
+
+	@DeleteMapping("")
+	@ResponseStatus(HttpStatus.NO_CONTENT)
+	public void disconnectCouple(@AuthenticationPrincipal Long userId) {
+		coupleService.disconnectCouple(userId);
+	}
+
 }

src/main/java/com/universe/uni/service/CoupleService.java

@@ -106,4 +106,13 @@ public CoupleConnectionResponseDto checkConnection(Long userId) {
 	public void deleteCouple(Long coupleId) {
 		coupleRepository.deleteById(coupleId);
 	}
+
+	@Override
+	@Transactional
+	public void disconnectCouple(Long userId) {
+		final User user = userRepository.findById(userId)
+			.orElseThrow(() -> new BadRequestException(ErrorType.USER_NOT_EXISTENT));
+		final Couple couple = user.getCouple();
+		deleteCouple(couple.getId());
+	}
 }

src/main/java/com/universe/uni/service/CoupleServiceContract.java

@@ -25,4 +25,7 @@ CoupleDto createCoupleByStartDate(
 
 	@Transactional
 	void deleteCouple(Long coupleId);
+
+	@Transactional
+	void disconnectCouple(Long userId);
 }