feat: 친구 목록 조회 로직 구현 (#53)

Mapdagu · Sep 28, 2023 · 3969e38 · 3969e38
1 parent 5fd0563
commit 3969e38
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Showing 2 changed files with 34 additions and 1 deletion.
diff --git a/src/main/java/com/project/mapdagu/domain/friend/repository/FriendRepository.java b/src/main/java/com/project/mapdagu/domain/friend/repository/FriendRepository.java
@@ -2,11 +2,25 @@
 
 import com.project.mapdagu.domain.friend.entity.Friend;
 import com.project.mapdagu.domain.member.entity.Member;
+import io.lettuce.core.dynamic.annotation.Param;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Slice;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
 
+import java.util.List;
 import java.util.Optional;
 
 public interface FriendRepository extends JpaRepository<Friend, Long> {
 
     Optional<Friend> findByMemberAndFriend(Member member, Member friend);
-}
+
+    @Query("select f.friend from Friend f " +
+            " where f.member.id =:memberId ")
+    List<Member> findAllFriendByMemberId(@Param("memberId") Long memberId);
+
+    @Query("select f.member from Friend f " +
+            " where f.friend.id =:friendId ")
+    List<Member> findAllMemberByFriendId(@Param("friendId") Long friendId);
+
+}
diff --git a/src/main/java/com/project/mapdagu/domain/friend/service/FriendService.java b/src/main/java/com/project/mapdagu/domain/friend/service/FriendService.java
@@ -1,5 +1,6 @@
 package com.project.mapdagu.domain.friend.service;
 
+import com.project.mapdagu.domain.friend.dto.response.FriendGetAllResponseDto;
 import com.project.mapdagu.domain.friend.dto.response.FriendSearchResponseDto;
 import com.project.mapdagu.domain.friend.entity.Friend;
 import com.project.mapdagu.domain.friend.repository.FriendRepository;
@@ -13,9 +14,15 @@
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Slice;
+import org.springframework.data.domain.SliceImpl;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+import java.util.stream.Stream;
+
 @Service
 @Slf4j
 @Transactional
@@ -55,4 +62,16 @@ public void deleteFriend(String email, Long friendId) {
             friendRepository.delete(findFriend);
         }
     }
+
+    public Slice<FriendGetAllResponseDto> getFriends(String email, Pageable pageable) {
+        Member member = memberRepository.findByEmail(email).orElseThrow(() -> new BusinessException(ErrorCode.MEMBER_NOT_FOUND));
+        List<Member> friends1 = friendRepository.findAllFriendByMemberId(member.getId());
+        List<Member> friends2 = friendRepository.findAllMemberByFriendId(member.getId());
+        List<Member> friendList = new ArrayList<>();
+        friendList.addAll(friends1);
+        friendList.addAll(friends2);
+        friendList.sort(Comparator.comparing(Member::getLevel).reversed());
+        Slice<Member> response = new SliceImpl<>(friendList, pageable, false);
+        return response.map(m -> FriendGetAllResponseDto.from(m));
+    }
 }