[BE] feature/nickname 랜덤 닉네임에 고정 문자열 대신 카카오 닉네임 사용

backend/src/main/java/com/mapbefine/mapbefine/member/domain/Member.java

@@ -27,6 +27,7 @@ public class Member extends BaseTimeEntity {
 
     private static final String DEFAULT_NICKNAME_PREFIX = "모험가";
     private static final int DEFAULT_NICKNAME_SUFFIX_LENGTH = 7;
+    private static final int NICKNAME_MAX_LENGTH = 20;
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -76,16 +77,24 @@ public static Member of(
     }
 
     public static Member ofRandomNickname(
+            String nickname,
             String email,
             String imageUrl,
             Role role,
             OauthId oauthId
     ) {
-        String nickName = DEFAULT_NICKNAME_PREFIX + createNicknameSuffix();
+        String nickName = createNickname(nickname);
 
         return Member.of(nickName, email, imageUrl, role, oauthId);
     }
 
+    private static String createNickname(String nickname) {
+        if (nickname.length() > NICKNAME_MAX_LENGTH - DEFAULT_NICKNAME_SUFFIX_LENGTH) {
+            return DEFAULT_NICKNAME_PREFIX + createNicknameSuffix();
+        }
+        return nickname + createNicknameSuffix();
+    }
+
     private static String createNicknameSuffix() {
         return randomUUID()
                 .toString()

backend/src/main/java/com/mapbefine/mapbefine/oauth/domain/OauthMember.java

@@ -8,31 +8,41 @@
 @Getter
 public class OauthMember {
 
+    private String nickname;
     private String email;
     private String profileImageUrl;
     private OauthId oauthId;
 
     private OauthMember(
+            String nickname,
             String email,
             String profileImageUrl,
             OauthId oauthId
     ) {
+        this.nickname = nickname;
         this.email = email;
         this.profileImageUrl = profileImageUrl;
         this.oauthId = oauthId;
     }
 
     public static OauthMember of(
+            String nickname,
             String email,
             String profileImageUrl,
             Long oauthServerId,
             OauthServerType oauthServerType
     ) {
-        return new OauthMember(email, profileImageUrl, new OauthId(oauthServerId, oauthServerType));
+        return new OauthMember(
+                nickname,
+                email,
+                profileImageUrl,
+                new OauthId(oauthServerId, oauthServerType)
+        );
     }
 
     public Member toRegisterMember() {
         return Member.ofRandomNickname(
+                nickname,
                 email,
                 profileImageUrl,
                 Role.USER,

backend/src/main/java/com/mapbefine/mapbefine/oauth/domain/kakao/dto/KakaoMemberResponse.java

@@ -17,6 +17,7 @@ public record KakaoMemberResponse(
 
     public OauthMember extract() {
         return OauthMember.of(
+                kakaoAccount().profile.nickname,
                 kakaoAccount().email,
                 kakaoAccount().profile.profileImageUrl,
                 id,

backend/src/test/java/com/mapbefine/mapbefine/oauth/application/OauthServiceTest.java

@@ -28,6 +28,7 @@
 class OauthServiceTest {
 
     private static final OauthMember oauthMember = OauthMember.of(
+            "12345678901234567890",
             "[email protected]",
             "https://map-befine-official.github.io/favicon.png",
             Long.MAX_VALUE,
@@ -82,6 +83,7 @@ void tearDown() {
     void getAuthCodeRequestUrl_success() {
         // when
         String url = oauthService.getAuthCodeRequestUrl(OauthServerType.KAKAO);
+        System.out.println(oauthMember.toRegisterMember().getMemberInfo().getNickName());
 
         // then
         assertThat(url).isEqualTo("https://kauth.kakao.com/oauth/authorize?"

backend/src/test/java/com/mapbefine/mapbefine/oauth/domain/OauthMemberTest.java

@@ -0,0 +1,28 @@
+package com.mapbefine.mapbefine.oauth.domain;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+class OauthMemberTest {
+
+    @Test
+    @DisplayName("소셜 로그인 닉네임의 길이가 13자 초과이면 기본 랜덤 닉네임을 부여한다.")
+    void toRegisterMember() {
+        OauthMember oauthMember = OauthMember.of(
+                "일이삼사오육칠팔구십일이삼사",
+                "[email protected]",
+                "https://image.url",
+                1L,
+                OauthServerType.KAKAO
+        );
+
+        String expected = oauthMember.toRegisterMember()
+                .getMemberInfo()
+                .getNickName();
+
+        System.out.println(expected);
+        assertThat(expected).contains("모험가");
+    }
+}