[Feat] ExchangeRepository에서 사용자 정보를 통해 교환 미확인 내역을 count하는 adpater구현 및…

… GetMyHeaderService 생성 #142

src/main/java/com/gamja/tiggle/exchange/adapter/out/persistence/ExchangePersistenceAdapter.java

@@ -73,4 +73,9 @@ public List<ExchangeEntity> readExchangeOfferForMe(User user,Integer page, Integ
 
         return exchangeRepository.findExchangeByUser(user.getId(), pageable);
     }
+
+    @Override
+    public Long readExchangeOfferCnt(Long userId) {
+        return exchangeRepository.countReservationsByUserId(userId);
+    }
 }

src/main/java/com/gamja/tiggle/exchange/application/port/out/ExchangePort.java

@@ -11,9 +11,16 @@
 
 public interface ExchangePort {
     ExchangeEntity read(Exchange exchange) throws BaseException;
+
     void save(Exchange exchange);
+
     Boolean find(CreateExchangeOfferCommand command);
+
     ExchangeEntity findById(Long id) throws BaseException;
+
     void update(ExchangeEntity exchange);
+
     List<ExchangeEntity> readExchangeOfferForMe(User user, Integer page, Integer size);
+
+    Long readExchangeOfferCnt(Long userId);
 }

src/main/java/com/gamja/tiggle/mypage/application/port/in/GetMyHeaderUseCase.java

@@ -0,0 +1,8 @@
+package com.gamja.tiggle.mypage.application.port.in;
+
+import com.gamja.tiggle.common.BaseException;
+import com.gamja.tiggle.mypage.domain.MyHeaderInfo;
+
+public interface GetMyHeaderUseCase {
+    MyHeaderInfo getByUserId(Long id) throws BaseException;
+}

src/main/java/com/gamja/tiggle/mypage/application/service/GetMyHeaderService.java

@@ -0,0 +1,33 @@
+package com.gamja.tiggle.mypage.application.service;
+
+import com.gamja.tiggle.common.BaseException;
+import com.gamja.tiggle.exchange.application.port.out.ExchangePort;
+import com.gamja.tiggle.mypage.application.port.in.GetMyHeaderUseCase;
+import com.gamja.tiggle.mypage.domain.MyHeaderInfo;
+import com.gamja.tiggle.reservation.application.port.out.ReadReservationPort;
+import com.gamja.tiggle.user.application.port.out.UserPersistencePort;
+import com.gamja.tiggle.user.domain.User;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Component;
+
+import static java.lang.Integer.parseInt;
+
+@Component
+@RequiredArgsConstructor
+public class GetMyHeaderService implements GetMyHeaderUseCase {
+    private final UserPersistencePort userPersistencePort;
+    private final ReadReservationPort readReservationPort;
+    private final ExchangePort exchangePort;
+
+    @Override
+    public MyHeaderInfo getByUserId(Long id) throws BaseException {
+        User user = userPersistencePort.searchUser(id);
+        return MyHeaderInfo.builder()
+                .username(user.getName())
+                .reservationCnt((readReservationPort.getReservationCnt(id)).intValue())
+                .notWatchedYet((exchangePort.readExchangeOfferCnt(id)).intValue())
+                .point(user.getPoint())
+                .build();
+    }
+}
+