Merge pull request #87 from Leets-Official/feat/kakao-login

[feat] 카카오 로그인 응답에 가입 상태 추가

Author: AtMach10

src/main/kotlin/com/stepbookstep/server/domain/auth/application/AuthService.kt

@@ -44,7 +44,7 @@ class AuthService(
             ?: throw CustomException(ErrorCode.EMAIL_REQUIRED)
 
         // 2) 유저 조회/생성 (DB Transaction - UserService 내부에서 처리)
-        val (user, isNewUser) =
+        val (user, signupType) =
             userService.getOrCreateKakaoUser(
                 providerUserId = providerUserId,
                 nickname = nicknameFromKakao,
@@ -61,7 +61,7 @@ class AuthService(
         return KakaoLoginResponse(
             accessToken = accessToken,
             refreshToken = refreshToken,
-            isNewUser = isNewUser,
+            signupType = signupType,
             nickname = user.nickname,
             email = user.email
         )
@@ -87,7 +87,7 @@ class AuthService(
         val email = kakaoMe.email
             ?: throw CustomException(ErrorCode.EMAIL_REQUIRED)
 
-        val (user, isNewUser) =
+        val (user, signupType) =
             userService.getOrCreateKakaoUser(
                 providerUserId = providerUserId,
                 nickname = nicknameFromKakao,
@@ -102,7 +102,7 @@ class AuthService(
         return KakaoLoginResponse(
             accessToken = accessToken,
             refreshToken = refreshToken,
-            isNewUser = isNewUser,
+            signupType = signupType,
             nickname = user.nickname,
             email = user.email
         )

src/main/kotlin/com/stepbookstep/server/domain/auth/application/dto/KakaoLoginResponse.kt

@@ -1,9 +1,11 @@
 package com.stepbookstep.server.domain.auth.application.dto
 
+import com.stepbookstep.server.domain.user.domain.SignupType
+
 data class KakaoLoginResponse(
     val accessToken: String,
     val refreshToken: String,
-    val isNewUser: Boolean,
+    val signupType: SignupType,
     val nickname: String?,
     val email: String?
 )

src/main/kotlin/com/stepbookstep/server/domain/user/application/UserService.kt

@@ -1,5 +1,6 @@
 package com.stepbookstep.server.domain.user.application
 
+import com.stepbookstep.server.domain.user.domain.SignupType
 import com.stepbookstep.server.domain.user.domain.User
 import com.stepbookstep.server.domain.user.domain.UserRepository
 import com.stepbookstep.server.domain.user.domain.UserStatus
@@ -40,7 +41,7 @@ class UserService(
      * @return Pair(유저 객체, 신규 가입 여부)
      */
     @Transactional
-    fun getOrCreateKakaoUser(providerUserId: String, nickname: String, email: String): Pair<User, Boolean> {
+    fun getOrCreateKakaoUser(providerUserId: String, nickname: String, email: String): Pair<User, SignupType> {
         val user = userRepository.findByProviderAndProviderUserId("KAKAO", providerUserId)
 
         if (user != null) {
@@ -53,10 +54,10 @@ class UserService(
                 user.email = email
                 user.updatedAt = OffsetDateTime.now()
 
-                return user to false // 다시 가입 처리
+                return user to SignupType.REJOIN // 다시 가입 처리
             }
 
-            return user to false
+            return user to SignupType.EXISTING
         }
 
         // 신규 가입
@@ -68,7 +69,7 @@ class UserService(
             status = UserStatus.ACTIVE
         )
 
-        return userRepository.save(newUser) to true
+        return userRepository.save(newUser) to SignupType.NEW
     }
 }
 

src/main/kotlin/com/stepbookstep/server/domain/user/domain/SignupType.kt

@@ -0,0 +1,7 @@
+package com.stepbookstep.server.domain.user.domain
+
+enum class SignupType {
+    NEW,          // 완전 신규
+    REJOIN,       // 탈퇴 후 재가입
+    EXISTING      // 기존 유저
+}