feat: 보유한 아이템/칭호 확인 API 추가 (#83)

Author: jaegyun1011

backend/src/main/java/com/back/domain/member/controller/ApiV1MemberController.java

@@ -116,7 +116,7 @@ public ResponseEntity<ApiResponse<MemberDto>> valid_set(
     }
 
     @PutMapping("/modify/profile")
-    @Operation(summary = "회원 정보 수정", description = "생년월일, 성별 수정")
+    @Operation(summary = "회원 정보 수정", description = "닉네임, 생년월일, 성별 수정")
     public ResponseEntity<ApiResponse<MemberDto>> modifyProfile(
             @Valid @RequestBody ModifyReqDto reqBody
     ) {
@@ -166,6 +166,36 @@ public ResponseEntity<ApiResponse<MemberDto>> me() {
                 );
     }
 
+    @GetMapping("/me/items")
+    @Operation(summary = "보유한 아이템 확인", description = "보유한 아이템 리스트 확인")
+    public ResponseEntity<ApiResponse<ItemListDto>> myItems() {
+        Member actor = rq.getActorFromDb();
+
+        return ResponseEntity
+                .status(HttpStatus.OK)
+                .body(new ApiResponse<>(
+                                "200",
+                                "[Member] Success: 보유한 아이템 확인",
+                                new ItemListDto(actor.getOwnedItems())
+                        )
+                );
+    }
+
+    @GetMapping("/me/titles")
+    @Operation(summary = "보유한 칭호 확인", description = "보유한 칭호 리스트 확인")
+    public ResponseEntity<ApiResponse<TitleListDto>> myTitles() {
+        Member actor = rq.getActorFromDb();
+
+        return ResponseEntity
+                .status(HttpStatus.OK)
+                .body(new ApiResponse<>(
+                                "200",
+                                "[Member] Success: 보유한 칭호 확인",
+                                new TitleListDto(actor.getOwnedTitles())
+                        )
+                );
+    }
+
     @PutMapping("/equip/item/{id}")
     @Operation(summary = "아이템 장착", description = "보유한 아이템 장착")
     public ResponseEntity<ApiResponse<MemberDto>> equipItem(

backend/src/main/java/com/back/domain/member/dto/ItemListDto.java

@@ -0,0 +1,23 @@
+package com.back.domain.member.dto;
+
+import com.back.domain.item.entity.Item;
+import com.back.domain.item.entity.ItemType;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+public record ItemListDto(
+        Map<ItemType, List<Integer>> items
+) {
+    public ItemListDto(Set<Item> ownedItems) {
+        this(
+                EnumSet.allOf(ItemType.class).stream()
+                        .collect(Collectors.toMap(
+                                type -> type,
+                                type -> new ArrayList<>()
+                        ))
+        );
+        ownedItems.forEach(item -> this.items.get(item.getType()).add(item.getId()));
+        this.items.replaceAll((k, v) -> v.stream().sorted().toList());
+    }
+}

backend/src/main/java/com/back/domain/member/dto/TitleListDto.java

@@ -0,0 +1,19 @@
+package com.back.domain.member.dto;
+
+import com.back.domain.title.entity.Title;
+
+import java.util.List;
+import java.util.Set;
+
+public record TitleListDto(
+        List<Integer> titles
+) {
+        public TitleListDto(Set<Title> ownedTitles) {
+            this(
+                    ownedTitles.stream()
+                            .map(Title::getId)
+                            .sorted()
+                            .toList()
+            );
+        }
+}

backend/src/main/java/com/back/domain/member/service/MemberService.java

@@ -30,11 +30,7 @@ public class MemberService {
     private final TitleRepository titleRepository;
 
     //가입 (일반)
-    public Member signup(
-            String email,
-            String password,
-            String name
-    ) {
+    public Member signup(String email, String password, String name) {
         findByEmail(email)
                 .ifPresent(_member -> {
                     throw new CustomException(ErrorCode.CONFLICT, "[Member] Fail: 이미 가입된 계정");
@@ -109,12 +105,7 @@ public void modifyProfile(Member member, String name, LocalDate age, MemberGende
         member.setGender(gender);
     }
 
-    public void modifyStatus(
-            Member member,
-            int level,
-            int xp,
-            int money
-    ) {
+    public void modifyStatus(Member member, int level, int xp, int money) {
         member.setLevel(level);
         member.setXp(xp);
         member.setMoney(money);