Feat : 게스트 로그인 기능 추가 및 GUEST 플랜 추가

src/main/java/com/perfact/be/domain/auth/controller/AuthController.java

@@ -48,6 +48,18 @@ public ApiResponse<AuthResponseDto.LoginResponse> socialLogin(
     return ApiResponse.of(AuthSuccessStatus.SOCIAL_LOGIN_SUCCESS, response);
   }
 
+  @Operation(
+      summary = "게스트 로그인",
+      description = "UUID 기반 게스트 계정을 생성하고 엑세스/리프레시 토큰을 발급합니다."
+  )
+  @PostMapping(value = "/guest-login", produces = "application/json")
+  public ApiResponse<AuthResponseDto.LoginResponse> guestLogin(
+  ) {
+    AuthResponseDto.LoginResponse response = authService.guestLogin();
+    return ApiResponse.of(AuthSuccessStatus.GUEST_LOGIN_SUCCESS, response);
+  }
+
+
   @Operation(
       summary = "엑세스 토큰 재발급",
       description = "리프레시 토큰을 이용해 엑세스 토큰을 재발급합니다."

src/main/java/com/perfact/be/domain/auth/exception/status/AuthSuccessStatus.java

@@ -13,7 +13,10 @@ public enum AuthSuccessStatus implements BaseCode {
   SOCIAL_LOGIN_SUCCESS(HttpStatus.OK, "AUTH2001", "소셜 로그인이 완료되었습니다."),
   DEV_TOKEN_ISSUED(HttpStatus.OK, "AUTH2002", "개발용 액세스 토큰 발급이 완료되었습니다."),
   LOGOUT_SUCCESS(HttpStatus.OK, "AUTH2003", "로그아웃이 완료되었습니다."),
-  AT_REFRESH_SUCCESS(HttpStatus.OK, "AUTH2004", "엑세스 토큰 재생성이 완료되었습니다.");
+  AT_REFRESH_SUCCESS(HttpStatus.OK, "AUTH2004", "엑세스 토큰 재생성이 완료되었습니다."),
+  GUEST_LOGIN_SUCCESS(HttpStatus.OK, "AUTH2005", "게스트 로그인이 완료되었습니다."),
+
+  ;
 
   private final HttpStatus httpStatus;
   private final String code;

src/main/java/com/perfact/be/domain/auth/service/AuthService.java

@@ -1,6 +1,7 @@
 package com.perfact.be.domain.auth.service;
 
 import com.perfact.be.domain.auth.dto.AuthResponseDto;
+import com.perfact.be.domain.auth.dto.AuthResponseDto.LoginResponse;
 import com.perfact.be.domain.auth.dto.AuthResponseDto.TokenResponse;
 import com.perfact.be.domain.user.entity.User;
 import jakarta.validation.constraints.NotNull;
@@ -12,4 +13,6 @@ public interface AuthService {
   TokenResponse refreshAccessToken(User loginUser, String refreshToken);
 
   void logout(User loginUser, String refreshToken);
+
+  AuthResponseDto.LoginResponse guestLogin();
 }

src/main/java/com/perfact/be/domain/auth/service/AuthServiceImpl.java

@@ -1,6 +1,7 @@
 package com.perfact.be.domain.auth.service;
 
 import com.perfact.be.domain.auth.dto.AuthResponseDto;
+import com.perfact.be.domain.auth.dto.AuthResponseDto.LoginResponse;
 import com.perfact.be.domain.auth.dto.AuthResponseDto.TokenResponse;
 import com.perfact.be.domain.auth.dto.NaverTokenResponse;
 import com.perfact.be.domain.auth.dto.NaverUserInfoResponse;
@@ -85,6 +86,21 @@ public void logout(User loginUser, String refreshToken) {
     redisTemplate.delete(redisKey);
   }
 
+  @Override
+  public LoginResponse guestLogin() {
+    String deviceUuid =  UUID.randomUUID().toString();
+    User guestUser = userService.createGuestUser(deviceUuid);
+
+    String accessToken = jwtProvider.generateAccessToken(guestUser.getId(), deviceUuid);
+
+    String rtUuid = UUID.randomUUID().toString();
+    String refreshToken = jwtProvider.generateRefreshToken(guestUser.getId(), deviceUuid, rtUuid);
+
+    String redisKey = "RT:" + deviceUuid + ":" + rtUuid;
+    redisTemplate.opsForValue().set(redisKey, refreshToken, 3, TimeUnit.HOURS);
+    return new AuthResponseDto.LoginResponse(guestUser.getId(), guestUser.getEmail(), accessToken, refreshToken);
+  }
+
 
   private String getAccessToken(String code, String state) {
     NaverTokenResponse tokenResponse = webClient

src/main/java/com/perfact/be/domain/credit/entity/enums/PlanType.java

@@ -1,5 +1,5 @@
 package com.perfact.be.domain.credit.entity.enums;
 
 public enum PlanType {
-  FREE, STANDARD, PREMIUM
+  FREE, STANDARD, PREMIUM, GUEST
 }

src/main/java/com/perfact/be/domain/user/entity/User.java

@@ -27,15 +27,14 @@ public class User extends BaseEntity {
   private String socialId;
   @Enumerated(EnumType.STRING)
   private SocialType socialType;
-  @Column(name = "nickname", length = 10)
+  @Column(name = "nickname", length = 20)
   private String nickname;
   @Column(name = "email", length = 255)
   private String email;
   @Enumerated(EnumType.STRING)
   @Column(length = 20)
   private Role role;
   @Enumerated(EnumType.STRING)
-
   @Builder.Default
   @Column(length = 20, nullable = false)
   private UserStatus status = UserStatus.ACTIVE;

src/main/java/com/perfact/be/domain/user/entity/enums/Role.java

@@ -1,5 +1,5 @@
 package com.perfact.be.domain.user.entity.enums;
 
 public enum Role {
-  ROLE_USER, ROLE_ADMIN
+  ROLE_USER, ROLE_ADMIN, ROLE_GUEST;
 }

src/main/java/com/perfact/be/domain/user/entity/enums/SocialType.java

@@ -1,5 +1,5 @@
 package com.perfact.be.domain.user.entity.enums;
 
 public enum SocialType {
-  NAVER, KAKAO
+  NAVER, KAKAO, GUEST
 }

src/main/java/com/perfact/be/domain/user/service/UserService.java

@@ -16,4 +16,6 @@ public interface UserService {
   void decreaseCredit(User user, int cost);
 
   NicknameResponse getNickname(User loginUser);
+
+  User createGuestUser(String deviceUuid);
 }

src/main/java/com/perfact/be/domain/user/service/UserServiceImpl.java

@@ -57,10 +57,23 @@ public SubscribeStatusResponse getSubscribeStatus(User loginUser) {
 
     String planName = plan != null ? plan.getName().toString() : "UNKNOWN";
     boolean isFreePlan = "FREE".equals(planName);
-    String subscribeStatus = isFreePlan ? "무료 플랜 사용 중" : "유료 플랜 사용 중";
-    String nextBillingDate = isFreePlan ? "무료 플랜 사용 중" : "미정";
+    boolean isGuestPlan = "GUEST".equals(planName);
+
+    String subscribeStatus;
+    String nextBillingDate;
     Long dailyCredit = plan != null ? plan.getDailyCredit() : 0L;
 
+    if (isGuestPlan) {
+      subscribeStatus = "게스트 모드 사용 중";
+      nextBillingDate = "게스트 모드는 결제/갱신 없음";
+    } else if (isFreePlan) {
+      subscribeStatus = "무료 플랜 사용 중";
+      nextBillingDate = "무료 플랜 사용 중";
+    } else {
+      subscribeStatus = "유료 플랜 사용 중";
+      nextBillingDate = "미정"; // TODO : 유료 결제 로직 붙으면 수정
+    }
+
     LocalDateTime startOfToday = LocalDate.now().atStartOfDay();
     LocalDateTime startOfTomorrow = startOfToday.plusDays(1);
 
@@ -70,35 +83,64 @@ public SubscribeStatusResponse getSubscribeStatus(User loginUser) {
 
     // 오늘 사용량
     Long todayUsage = Optional.ofNullable(
-        creditLogRepository.sumUsedCreditByUserAndTypeAndCreatedAtBetween(
-            loginUser,
-            CreditLogType.REPORT_CREATE,
-            startOfToday,
-            startOfTomorrow))
+            creditLogRepository.sumUsedCreditByUserAndTypeAndCreatedAtBetween(
+                loginUser,
+                CreditLogType.REPORT_CREATE,
+                startOfToday,
+                startOfTomorrow))
         .map(Math::abs).orElse(0L);
 
     // 이번 달 사용량
     Long thisMonthUsage = Optional.ofNullable(
-        creditLogRepository.sumUsedCreditByUserAndTypeAndCreatedAtBetween(
-            loginUser,
-            CreditLogType.REPORT_CREATE,
-            startOfMonth,
-            startOfNextMonth))
+            creditLogRepository.sumUsedCreditByUserAndTypeAndCreatedAtBetween(
+                loginUser,
+                CreditLogType.REPORT_CREATE,
+                startOfMonth,
+                startOfNextMonth))
         .map(Math::abs).orElse(0L);
     return new SubscribeStatusResponse(
         planName,
         subscribeStatus,
         nextBillingDate,
         dailyCredit,
         todayUsage,
-        thisMonthUsage);
+        thisMonthUsage
+    );
   }
 
   @Override
   public NicknameResponse getNickname(User loginUser) {
     return new NicknameResponse(loginUser.getNickname());
   }
 
+  @Override
+  @Transactional
+  public User createGuestUser(String deviceUuid) {
+    return userRepository.findBySocialIdAndSocialType(deviceUuid, SocialType.GUEST)
+        .orElseGet(() -> {
+          // 테스트로 지정하기
+          SubscriptionPlans testPlan = subscriptionPlansRepository.findByName(PlanType.GUEST)
+              .orElseThrow(() -> new UserHandler(UserErrorStatus.PLAN_NOT_FOUND));
+
+          String nick = "게스트-" + deviceUuid.substring(0, 8);
+
+          User newGuest = User.builder()
+              .email(null)                           // 게스트는 이메일 없음.. 기획 보고 나중에 수정해야 될 수도 있음.
+              .nickname(nick)
+              .socialId(deviceUuid)
+              .socialType(SocialType.GUEST)
+              .role(Role.ROLE_GUEST)
+              .status(UserStatus.ACTIVE)
+              .plan(testPlan)
+              .isSubscribe(false)
+              .isNotificationAgreed(false)
+              .build();
+
+          return userRepository.save(newGuest);
+        });
+  }
+
+
   @Override
   @Transactional
   public void decreaseCredit(User user, int amount) {

src/main/java/com/perfact/be/global/config/SecurityConfig.java

@@ -39,6 +39,7 @@ public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
                 "/v3/api-docs/**",
                 "/swagger-ui.html",
                 "/api/auth/social-login/**",
+                "/api/auth/guest-login/**",
                 "/dev/auth/**"
             ).permitAll()
             .anyRequest().authenticated()