refactor: Exception Method 한 곳으로 이동

README.md

@@ -37,7 +37,6 @@
 - [패키지 구조](https://github.com/f-lab-edu/Ticketing/wiki#-%ED%8C%A8%ED%82%A4%EC%A7%80-%EA%B5%AC%EC%A1%B0)
 - [Use Case](https://github.com/f-lab-edu/Ticketing/wiki/Use-Case)
 - [Prototype](https://github.com/f-lab-edu/Ticketing/wiki/Prototype)
-- [Issue Posting](https://github.com/f-lab-edu/Ticketing/wiki/Issue-Posting)
 
 <br/>
 
@@ -45,22 +44,20 @@
 
 ``` mermaid
 erDiagram
-    MOVIE ||--o{ MOVIE_TIME : ""
+    MOVIE ||--o{ MOVIE_TIMES : ""
     MOVIE {
         bigint id PK "영화 ID"
         varchar title "영화제목"
         int running_time "러닝타임"
-        datetime deleted_at "삭제일시"
         datetime created_at "등록일시"
         datetime updated_at "수정일시"
     }
-    THEATER ||--o{ MOVIE_TIME : ""
+    THEATER ||--o{ MOVIE_TIMES : ""
     THEATER ||--|{ SEAT : ""
     THEATER {
         bigint id PK "상영관 ID"
         int theater_number "상영관 번호"
         int seat_count "좌석수"
-        datetime deleted_at "삭제일시"
         datetime created_at "등록일시"
         datetime updated_at "수정일시"
     }
@@ -70,56 +67,51 @@ erDiagram
         bigint theater_id FK "상영관 ID"
         int column "열"
         int row "행"
-        datetime deleted_at "삭제일시"
         datetime created_at "등록일시"
         datetime updated_at "수정일시"
     }
-    MOVIE_TIME ||--o{ TICKET : ""
-    MOVIE_TIME {
+    MOVIE_TIMES ||--o{ TICKET : ""
+    MOVIE_TIMES {
         bigint id PK "상영시간표 ID"
         bigint movie_id FK "영화 ID"
         bigint theater_id FK "상영관 ID"
         int round "회차"
         time start_at "시작 시간"
         time end_at "종료 시간"
-        datetime deleted_at "삭제일시"
         datetime created_at "등록일시"
         datetime updated_at "수정일시"
     }
     TICKET {
         bigint id PK "티켓 ID"
         bigint seat_id FK "좌석 ID"
-        bigint movie_time_id FK "상영시간표 ID"
-        bigint payment_id "결제 ID"
+        bigint movie_times_id FK "상영시간표 ID"
+        bigint payment_id FK "결제 ID"
         varchar status "상태 - 구매가능/예약진행중/판매완료"
         int ticket_price "가격"
-        datetime deleted_at "삭제일시"
         datetime created_at "등록일시"
         datetime updated_at "수정일시"
     }
     TICKET }|--|| PAYMENT : ""
     PAYMENT {
         bigint id PK "결제 ID"
-        bigint user_alternate_id "유저 대체ID"
-        varchar movie_title "영화제목"
+        bigint user_id FK "유저ID"
         varchar type "결제 타입 - 예) 네이버페이, 카카오페이"
         varchar status "상태 - 완료/환불/실패"
         varchar failed_message "실패사유 - 컬럼명을 알아보기 쉬운가?"
         varchar payment_number "예매번호"
         int total_price "결제 금액"
-        datetime deleted_at "삭제일시"
         datetime created_at "결제일시"
         datetime updated_at "수정일시"
     }
     USER ||--o{ PAYMENT : ""
     USER {
         bigint id "회원"
-        bigint alternate_id "대체ID"
         varchar name "이름"
         varchar email "이메일"
         varchar password "비밀번호"
         varchar grade "등급 - 고객/임직원"
         varchar phone "휴대폰 번호"
+        boolean is_deleted "탈퇴여부"
         datetime deleted_at "탈퇴일시"
         datetime created_at "가입일시"
         datetime updated_at "수정일시"

server/src/main/java/com/ticketing/server/global/dto/repository/AbstractEntity.java

@@ -19,15 +19,15 @@ public abstract class AbstractEntity {
 
 	@Id
 	@GeneratedValue(strategy = GenerationType.IDENTITY)
-	protected Long id;
+	private Long id;
 
 	@Column(nullable = false, updatable = false)
 	@CreatedDate
-	protected LocalDateTime createdAt;
+	private LocalDateTime createdAt;
 
 	@LastModifiedDate
-	protected LocalDateTime updatedAt;
+	private LocalDateTime updatedAt;
 
-	protected LocalDateTime deletedAt;
+	private LocalDateTime deletedAt;
 
 }

server/src/main/java/com/ticketing/server/global/exception/ErrorCode.java

@@ -2,7 +2,6 @@ package com.ticketing.server.global.exception;
 
 import static org.springframework.http.HttpStatus.BAD_REQUEST;
 import static org.springframework.http.HttpStatus.CONFLICT;
-import static org.springframework.http.HttpStatus.FORBIDDEN;
 import static org.springframework.http.HttpStatus.NOT_FOUND;
 
 import lombok.AllArgsConstructor;
@@ -17,24 +16,16 @@ public enum ErrorCode {
 	MISMATCH_PASSWORD(BAD_REQUEST, "비밀번호가 일치하지 않습니다."),
 	TOKEN_TYPE(BAD_REQUEST, "토큰 타입이 올바르지 않습니다."),
 	UNAVAILABLE_REFRESH_TOKEN(BAD_REQUEST, "사용할 수 없는 토큰 입니다."),
-	UNABLE_CHANGE_GRADE(BAD_REQUEST, "동일한 등급으로 변경할 수 없습니다."),
-
-	/* 403 FORBIDDEN : 접근 권한 제한 */
-	VALID_USER_ID(FORBIDDEN, "해당 정보에 접근 권한이 존재하지 않습니다."),
 
 	/* 404 NOT_FOUND : Resource 를 찾을 수 없음 */
 	USER_NOT_FOUND(NOT_FOUND, "해당 유저 정보를 찾을 수 없습니다."),
 	EMAIL_NOT_FOUND(NOT_FOUND, "해당 이메일을 찾을 수 없습니다."),
 	MOVIE_NOT_FOUND(NOT_FOUND, "해당 제목의 영화를 찾을 수 없습니다."),
 	REFRESH_TOKEN_NOT_FOUND(NOT_FOUND, "리프레쉬 토큰을 찾을 수 없습니다."),
-	PAYMENT_ID_NOT_FOUND(NOT_FOUND, "결제정보를 찾을 수 없습니다."),
 
 	/* 409 CONFLICT : Resource 의 현재 상태와 충돌. 보통 중복된 데이터 존재 */
 	DUPLICATE_EMAIL(CONFLICT, "이메일이 이미 존재합니다."),
-	DUPLICATE_PAYMENT(CONFLICT, "해당 좌석은 현재 판매된 좌석입니다."),
-	DUPLICATE_MOVIE(CONFLICT, "해당 영화 정보가 이미 존재합니다."),
-	DELETED_EMAIL(CONFLICT, "이미 삭제된 이메일 입니다."),
-	DELETED_MOVIE(CONFLICT, "이미 삭제된 영화 입니다.");
+	DELETED_EMAIL(CONFLICT, "이미 삭제된 이메일 입니다.");
 
 	private final HttpStatus httpStatus;
 	private final String detail;
@@ -52,15 +43,6 @@ public enum ErrorCode {
 		throw new TicketingException(UNAVAILABLE_REFRESH_TOKEN);
 	}
 
-	public static TicketingException throwUnableChangeGrade() {
-		throw new TicketingException(UNABLE_CHANGE_GRADE);
-	}
-
-	/* 403 FORBIDDEN : 접근 권한 제한 */
-	public static TicketingException throwValidUserId() {
-		throw new TicketingException(VALID_USER_ID);
-	}
-
 	/* 404 NOT_FOUND : Resource 를 찾을 수 없음 */
 	public static TicketingException throwUserNotFound() {
 		throw new TicketingException(USER_NOT_FOUND);
@@ -78,29 +60,13 @@ public enum ErrorCode {
 		throw new TicketingException(REFRESH_TOKEN_NOT_FOUND);
 	}
 
-	public static TicketingException throwPaymentIdNotFound() {
-		throw new TicketingException(PAYMENT_ID_NOT_FOUND);
-	}
-
 	/* 409 CONFLICT : Resource 의 현재 상태와 충돌. 보통 중복된 데이터 존재 */
 	public static TicketingException throwDuplicateEmail() {
 		throw new TicketingException(DUPLICATE_EMAIL);
 	}
 
-	public static TicketingException throwDuplicatePayment() {
-		throw new TicketingException(DUPLICATE_PAYMENT);
-	}
-
-	public static TicketingException throwDuplicateMovie() {
-		throw new TicketingException(DUPLICATE_MOVIE);
-	}
-
 	public static TicketingException throwDeletedEmail() {
 		throw new TicketingException(DELETED_EMAIL);
 	}
 
-	public static TicketingException throwDeletedMovie() {
-		throw new TicketingException(DELETED_MOVIE);
-	}
-
 }

server/src/main/java/com/ticketing/server/global/exception/GlobalExceptionHandler.java

@@ -9,7 +9,6 @@ import static org.springframework.http.HttpStatus.UNAUTHORIZED;
 import static org.springframework.http.HttpStatus.UNSUPPORTED_MEDIA_TYPE;
 
 import java.util.ArrayList;
-import java.util.Iterator;
 import java.util.List;
 import java.util.Objects;
 import java.util.Set;
@@ -54,8 +53,7 @@ public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {
 
 		List<String> errors = generateErrors(ex);
 		ErrorResponse response = new ErrorResponse(BAD_REQUEST, ex.getLocalizedMessage(), errors);
-
-		return ResponseEntity.status(response.getStatus()).headers(headers).body(response);
+		return handleExceptionInternal(ex, response, headers, response.getStatus(), request);
 	}
 
 	/***
@@ -68,7 +66,7 @@ public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {
 
 		List<String> errors = generateErrors(ex);
 		ErrorResponse response = new ErrorResponse(BAD_REQUEST, ex.getLocalizedMessage(), errors);
-		return ResponseEntity.status(response.getStatus()).headers(headers).body(response);
+		return handleExceptionInternal(ex, response, headers, response.getStatus(), request);
 	}
 
 	/**
@@ -240,7 +238,7 @@ public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {
 		List<ObjectError> allErrors = ex.getBindingResult().getAllErrors();
 
 		for (ObjectError error : allErrors) {
-			errors.add(error.getDefaultMessage());
+			errors.add(((FieldError) error).getField() + ": " + error.getDefaultMessage());
 		}
 		return errors;
 	}

server/src/main/java/com/ticketing/server/global/security/WebSecurityConfig.java

@@ -53,7 +53,7 @@ public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
 			.antMatchers(HttpMethod.POST, "/api/auth/token").permitAll()
 			.antMatchers(HttpMethod.POST, "/api/auth/refresh").permitAll()
 			.antMatchers(HttpMethod.POST, "/api/users").permitAll()
-			.antMatchers(HttpMethod.GET,"/api/movies").permitAll()
+			.antMatchers("/api/movies/**").permitAll()
 			.antMatchers("/api/movieTimes/**").permitAll()
 			.antMatchers("/l7check").permitAll()
 			.antMatchers("/actuator/**").permitAll()

server/src/main/java/com/ticketing/server/global/security/jwt/JwtProvider.java

@@ -1,6 +1,6 @@
 package com.ticketing.server.global.security.jwt;
 
-import com.ticketing.server.user.service.dto.TokenDTO;
+import com.ticketing.server.user.application.response.TokenDto;
 import io.jsonwebtoken.Claims;
 import io.jsonwebtoken.Jwts;
 import io.jsonwebtoken.SignatureAlgorithm;
@@ -42,12 +42,12 @@ public class JwtProvider {
 		this.refreshTokenValidityInMilliseconds = jwtProperties.getRefreshTokenValidityInSeconds() * 1000L;
 	}
 
-	public TokenDTO generateTokenDto(Authentication authentication) {
+	public TokenDto generateTokenDto(Authentication authentication) {
 		String accessToken = createAccessToken(authentication);
 		String refreshToken = createRefreshToken(authentication);
 		long expiresIn = accessTokenValidityInMilliseconds / 1000L;
 
-		return new TokenDTO(accessToken, refreshToken, prefix, expiresIn);
+		return TokenDto.of(accessToken, refreshToken, prefix, expiresIn);
 	}
 
 	private String createAccessToken(Authentication authentication) {

server/src/main/java/com/ticketing/server/global/security/jwt/handle/JwtAuthenticationEntryPoint.java

@@ -3,6 +3,7 @@ package com.ticketing.server.global.security.jwt.handle;
 import java.io.IOException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.security.core.AuthenticationException;
 import org.springframework.security.web.AuthenticationEntryPoint;
@@ -22,5 +23,4 @@ public class JwtAuthenticationEntryPoint implements AuthenticationEntryPoint {
 	public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException) throws IOException {
 		resolver.resolveException(request, response, null, authException);
 	}
-
 }

server/src/main/java/com/ticketing/server/global/validator/constraints/FieldsValueNotMatch.java

@@ -15,7 +15,7 @@ import javax.validation.Payload;
 @Documented
 public @interface FieldsValueNotMatch {
 
-	String message() default "validation.password.not.change";
+	String message();
 
 	String field();
 

server/src/main/java/com/ticketing/server/movie/application/MovieController.java

@@ -1,28 +1,14 @@
 package com.ticketing.server.movie.application;
 
-import static com.ticketing.server.user.domain.UserGrade.ROLES.STAFF;
-
-import com.ticketing.server.movie.application.request.MovieDeleteRequest;
-import com.ticketing.server.movie.application.request.MovieRegisterRequest;
-import com.ticketing.server.movie.application.response.MovieDeleteResponse;
 import com.ticketing.server.movie.application.response.MovieListResponse;
-import com.ticketing.server.movie.application.response.MovieInfoResponse;
-import com.ticketing.server.movie.service.dto.DeletedMovieDTO;
-import com.ticketing.server.movie.service.dto.MovieListDTO;
-import com.ticketing.server.movie.service.dto.RegisteredMovieDTO;
 import com.ticketing.server.movie.service.interfaces.MovieService;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
-import javax.validation.Valid;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
-import org.springframework.security.access.annotation.Secured;
-import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -33,41 +19,12 @@ import org.springframework.web.bind.annotation.RestController;
 @Slf4j
 public class MovieController {
 
-	private final MovieService movieService;
+    private final MovieService movieService;
 
-	@PostMapping()
-	@ApiOperation(value = "영화 정보 등록")
-	@Secured(STAFF)
-	public ResponseEntity<MovieInfoResponse> registerMovie(@RequestBody @Valid MovieRegisterRequest request) {
-		RegisteredMovieDTO registeredMovieDto =
-			movieService.registerMovie(request.getTitle(), request.getRunningTime());
+    @GetMapping()
+    @ApiOperation(value = "영화 목록 조회")
+    public ResponseEntity<MovieListResponse> getMovies() {
+        return ResponseEntity.status(HttpStatus.OK).body(MovieListResponse.from(movieService.getMovies()));
+    }
 
-		return ResponseEntity.status(HttpStatus.OK)
-			.body(
-				registeredMovieDto.toResponse()
-			);
-	}
-
-	@GetMapping()
-	@ApiOperation(value = "영화 목록 조회")
-	public ResponseEntity<MovieListResponse> getMovies() {
-		MovieListDTO movieListDto = movieService.getMovies();
-
-		return ResponseEntity.status(HttpStatus.OK)
-			.body(
-				movieListDto.toResponse()
-			);
-	}
-
-	@DeleteMapping()
-	@ApiOperation(value = "영화 정보 삭제")
-	@Secured(STAFF)
-	public ResponseEntity<MovieDeleteResponse> deleteMovie(@RequestBody @Valid MovieDeleteRequest request) {
-		DeletedMovieDTO deletedMovieDto = movieService.deleteMovie(request.getId());
-
-		return ResponseEntity.status(HttpStatus.OK)
-			.body(
-				deletedMovieDto.toResponse()
-			);
-	}
 }

server/src/main/java/com/ticketing/server/movie/application/TicketController.java

@@ -1,30 +1,8 @@
 package com.ticketing.server.movie.application;
 
-import com.ticketing.server.movie.application.response.TicketDetailsResponse;
-import com.ticketing.server.movie.service.dto.TicketDetailsDTO;
-import com.ticketing.server.movie.service.interfaces.TicketService;
-import javax.validation.constraints.NotNull;
-import lombok.RequiredArgsConstructor;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.ResponseEntity;
-import org.springframework.validation.annotation.Validated;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
-@RequiredArgsConstructor
-@RequestMapping("/api/tickets")
-@Validated
 public class TicketController {
 
-	private final TicketService ticketService;
-
-	@GetMapping("payments/{paymentId}")
-	public ResponseEntity<TicketDetailsResponse> findTicketsByPaymentId(@PathVariable("paymentId") @NotNull Long paymentId) {
-		TicketDetailsDTO tickets = ticketService.findTicketsByPaymentId(paymentId);
-		return ResponseEntity.status(HttpStatus.OK).body(tickets.toResponse());
-	}
-
 }

server/src/main/java/com/ticketing/server/movie/application/request/MovieDeleteRequest.java

@@ -1,16 +0,0 @@
-package com.ticketing.server.movie.application.request;
-
-import javax.validation.constraints.NotNull;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-
-@Getter
-@NoArgsConstructor
-@AllArgsConstructor
-public class MovieDeleteRequest {
-
-	@NotNull(message = "{validation.not.null.id}")
-	private Long id;
-
-}

server/src/main/java/com/ticketing/server/movie/application/request/MovieRegisterRequest.java

@@ -1,25 +0,0 @@
-package com.ticketing.server.movie.application.request;
-
-import com.ticketing.server.movie.service.dto.MovieRegisterDTO;
-import javax.validation.constraints.NotEmpty;
-import javax.validation.constraints.NotNull;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-
-@Getter
-@NoArgsConstructor
-@AllArgsConstructor
-public class MovieRegisterRequest {
-
-	@NotEmpty(message = "{validation.not.empty.title}")
-	private String title;
-
-	@NotNull(message = "{validation.not.null.runningTime}")
-	private Long runningTime;
-
-	public MovieRegisterDTO toMovieRegisterDTO() {
-		return new MovieRegisterDTO(this.title, this.runningTime);
-	}
-
-}

server/src/main/java/com/ticketing/server/movie/application/response/MovieDeleteResponse.java

@@ -1,17 +0,0 @@
-package com.ticketing.server.movie.application.response;
-
-import java.time.LocalDateTime;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class MovieDeleteResponse {
-
-	private final Long id;
-
-	private final String title;
-
-	private final LocalDateTime deletedAt;
-
-}

server/src/main/java/com/ticketing/server/movie/application/response/MovieInfoResponse.java

@@ -1,17 +0,0 @@
-package com.ticketing.server.movie.application.response;
-
-import io.swagger.annotations.ApiModelProperty;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class MovieInfoResponse {
-
-	@ApiModelProperty(value = "영화 ID")
-	private Long movieId;
-
-	@ApiModelProperty(value = "영화 제목")
-	private String title;
-
-}

server/src/main/java/com/ticketing/server/movie/application/response/MovieListResponse.java

@@ -1,16 +1,21 @@
 package com.ticketing.server.movie.application.response;
 
-import com.ticketing.server.movie.service.dto.MovieDTO;
+import com.ticketing.server.movie.service.dto.MovieDto;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.List;
+import lombok.AccessLevel;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
 @Getter
-@AllArgsConstructor
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
 public class MovieListResponse {
 
     @ApiModelProperty(value = "영화 제목")
-    private List<MovieDTO> movieDtos;
+    private List<MovieDto> movieDtos;
+
+    public static MovieListResponse from(List<MovieDto> movieDtos) {
+        return new MovieListResponse(movieDtos);
+    }
 
 }

server/src/main/java/com/ticketing/server/movie/application/response/MovieTimeListResponse.java

@@ -1,6 +1,6 @@
 package com.ticketing.server.movie.application.response;
 
-import com.ticketing.server.movie.service.dto.MovieTimeDTO;
+import com.ticketing.server.movie.service.dto.MovieTimeDto;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.List;
 import lombok.AccessLevel;
@@ -12,9 +12,9 @@ import lombok.Getter;
 public class MovieTimeListResponse {
 
     @ApiModelProperty(value = "영화 시간표 정보")
-    private List<MovieTimeDTO> movieTimeDTOS;
+    private List<MovieTimeDto> movieTimeDtos;
 
-    public static MovieTimeListResponse from(List<MovieTimeDTO> movieTimeDtos) {
+    public static MovieTimeListResponse from(List<MovieTimeDto> movieTimeDtos) {
         return new MovieTimeListResponse(movieTimeDtos);
     }
 

server/src/main/java/com/ticketing/server/movie/application/response/TicketDetailsResponse.java

@@ -1,16 +0,0 @@
-package com.ticketing.server.movie.application.response;
-
-import com.ticketing.server.payment.service.dto.TicketDetailDTO;
-import java.util.List;
-import lombok.Getter;
-
-@Getter
-public class TicketDetailsResponse {
-
-	private final List<TicketDetailDTO> ticketDetails;
-
-	public TicketDetailsResponse(List<TicketDetailDTO> ticketDetails) {
-		this.ticketDetails = ticketDetails;
-	}
-
-}

server/src/main/java/com/ticketing/server/movie/domain/Movie.java

@@ -1,46 +1,24 @@
 package com.ticketing.server.movie.domain;
 
 import com.ticketing.server.global.dto.repository.AbstractEntity;
-import com.ticketing.server.global.exception.ErrorCode;
-import com.ticketing.server.movie.service.dto.MovieDTO;
-import java.time.LocalDateTime;
+import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.validation.constraints.NotNull;
-import lombok.AccessLevel;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
 @Entity
 @Getter
-@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@NoArgsConstructor
 @AllArgsConstructor
 public class Movie extends AbstractEntity {
 
 	@NotNull
+	@Column(unique = true)
 	private String title;
 
 	@NotNull
 	private Long runningTime;
 
-	Movie(Long id, String title, Long runningTime) {
-		this.id = id;
-		this.title = title;
-		this.runningTime = runningTime;
-	}
-
-	public Movie delete() {
-		if (deletedAt != null) {
-			throw ErrorCode.throwDeletedMovie();
-		}
-
-		deletedAt = LocalDateTime.now();
-
-		return this;
-	}
-
-	public MovieDTO toMovieDTO() {
-		return new MovieDTO(this.id, this.title);
-	}
-
 }

server/src/main/java/com/ticketing/server/movie/domain/MovieTime.java

@@ -6,27 +6,25 @@ import java.util.ArrayList;
 import java.util.List;
 import javax.persistence.CascadeType;
 import javax.persistence.Entity;
-import javax.persistence.FetchType;
 import javax.persistence.JoinColumn;
 import javax.persistence.ManyToOne;
 import javax.persistence.OneToMany;
 import javax.validation.constraints.NotNull;
-import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
 @Entity
 @Getter
-@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@NoArgsConstructor
 public class MovieTime extends AbstractEntity {
 
 	@NotNull
-	@ManyToOne(fetch = FetchType.LAZY)
+	@ManyToOne
 	@JoinColumn(name = "movie_id", referencedColumnName = "id", updatable = false)
 	private Movie movie;
 
 	@NotNull
-	@ManyToOne(fetch = FetchType.LAZY)
+	@ManyToOne
 	@JoinColumn(name = "theater_id", referencedColumnName = "id", updatable = false)
 	private Theater theater;
 
@@ -42,30 +40,19 @@ public class MovieTime extends AbstractEntity {
 	@OneToMany(mappedBy = "movieTime", cascade = CascadeType.ALL)
 	private List<Ticket> tickets = new ArrayList<>();
 
-	public MovieTime(Movie movie, Theater theater, int round, LocalDateTime startAt) {
+	private MovieTime(Movie movie, Theater theater, int round, LocalDateTime startAt, LocalDateTime endAt) {
 		this.movie = movie;
 		this.theater = theater;
 		this.round = round;
 		this.startAt = startAt;
-		this.endAt = generateEndAt(startAt);
+		this.endAt = endAt;
 	}
 
-	MovieTime(Long id, Movie movie, Theater theater, int round, LocalDateTime startAt) {
-		this.id = id;
-		this.movie = movie;
-		this.theater = theater;
-		this.round = round;
-		this.startAt = startAt;
-		this.endAt = generateEndAt(startAt);
-	}
-
-	private LocalDateTime generateEndAt(LocalDateTime startAt) {
+	public static MovieTime of(Movie movie, Theater theater, int round, LocalDateTime startAt) {
 		Long runningTime = movie.getRunningTime();
-		return startAt.plusMinutes(runningTime);
-	}
+		LocalDateTime endAt = startAt.plusMinutes(runningTime);
 
-	public String getMovieTitle() {
-		return this.movie.getTitle();
+		return new MovieTime(movie, theater, round, startAt, endAt);
 	}
 
 	public List<Seat> getSeats() {

server/src/main/java/com/ticketing/server/movie/domain/Seat.java

@@ -2,40 +2,31 @@ package com.ticketing.server.movie.domain;
 
 import com.ticketing.server.global.dto.repository.AbstractEntity;
 import javax.persistence.Entity;
-import javax.persistence.FetchType;
 import javax.persistence.JoinColumn;
 import javax.persistence.ManyToOne;
 import javax.validation.constraints.NotNull;
-import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
 @Entity
 @Getter
-@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@NoArgsConstructor
 public class Seat extends AbstractEntity {
 
 	@NotNull
-	@ManyToOne(fetch = FetchType.LAZY)
+	@ManyToOne
 	@JoinColumn(name = "theater_id", referencedColumnName = "id", updatable = false)
 	private Theater theater;
 
-	@NotNull
-	private Integer seatColumn;
-
 	@NotNull
 	private Integer seatRow;
 
-	public Seat(Integer seatColumn, Integer seatRow, Theater theater) {
-		this.seatColumn = seatColumn;
-		this.seatRow = seatRow;
-		setTheater(theater);
-	}
+	@NotNull
+	private Integer seatColumn;
 
-	Seat(Long id, int column, int row, Theater theater) {
-		this.id = id;
-		this.seatColumn = column;
-		this.seatRow = row;
+	public Seat(Integer seatRow, Integer seatColumn, Theater theater) {
+		this.seatRow = seatRow;
+		this.seatColumn = seatColumn;
 		setTheater(theater);
 	}
 
@@ -43,9 +34,4 @@ public class Seat extends AbstractEntity {
 		this.theater = theater;
 		theater.addSeat(this);
 	}
-
-	public Integer getTheaterNumber() {
-		return this.theater.getTheaterNumber();
-	}
-
 }

server/src/main/java/com/ticketing/server/movie/domain/Theater.java

@@ -7,13 +7,12 @@ import javax.persistence.CascadeType;
 import javax.persistence.Entity;
 import javax.persistence.OneToMany;
 import javax.validation.constraints.NotNull;
-import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
 @Entity
 @Getter
-@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@NoArgsConstructor
 public class Theater extends AbstractEntity {
 
 	@NotNull
@@ -22,11 +21,6 @@ public class Theater extends AbstractEntity {
 	@OneToMany(mappedBy = "theater", cascade = CascadeType.ALL)
 	private List<Seat> seats = new ArrayList<>();
 
-	Theater(Long id, Integer theaterNumber) {
-		this.id = id;
-		this.theaterNumber = theaterNumber;
-	}
-
 	public Theater(Integer theaterNumber) {
 		this.theaterNumber = theaterNumber;
 	}

server/src/main/java/com/ticketing/server/movie/domain/Ticket.java

@@ -1,31 +1,27 @@
 package com.ticketing.server.movie.domain;
 
 import com.ticketing.server.global.dto.repository.AbstractEntity;
-import com.ticketing.server.global.exception.ErrorCode;
-import java.time.LocalDateTime;
 import javax.persistence.Entity;
 import javax.persistence.EnumType;
 import javax.persistence.Enumerated;
-import javax.persistence.FetchType;
 import javax.persistence.JoinColumn;
 import javax.persistence.ManyToOne;
 import javax.validation.constraints.NotNull;
-import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
 @Entity
 @Getter
-@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@NoArgsConstructor
 public class Ticket extends AbstractEntity {
 
 	@NotNull
-	@ManyToOne(fetch = FetchType.LAZY)
+	@ManyToOne
 	@JoinColumn(name = "seat_id", referencedColumnName = "id", updatable = false)
 	private Seat seat;
 
 	@NotNull
-	@ManyToOne(fetch = FetchType.LAZY)
+	@ManyToOne
 	@JoinColumn(name = "movie_times_id", referencedColumnName = "id", updatable = false)
 	private MovieTime movieTime;
 
@@ -38,52 +34,15 @@ public class Ticket extends AbstractEntity {
 	@NotNull
 	private Integer ticketPrice;
 
-	public Ticket(Seat seat, MovieTime movieTime, Integer ticketPrice) {
+	private Ticket(Seat seat, MovieTime movieTime, Integer ticketPrice) {
 		this.seat = seat;
 		this.movieTime = movieTime;
 		this.ticketPrice = ticketPrice;
 		this.status = TicketStatus.SALE;
 	}
 
-	Ticket(Long id, Seat seat, MovieTime movieTime, Integer ticketPrice) {
-		this.id = id;
-		this.seat = seat;
-		this.movieTime = movieTime;
-		this.ticketPrice = ticketPrice;
-		this.status = TicketStatus.SALE;
+	public static Ticket of(Seat seat, MovieTime movieTime, Integer ticketPrice) {
+		return new Ticket(seat, movieTime, ticketPrice);
 	}
 
-	public Integer getColumn() {
-		return this.seat.getSeatColumn();
-	}
-
-	public Integer getRow() {
-		return this.seat.getSeatRow();
-	}
-
-	public LocalDateTime getStartAt() {
-		return this.movieTime.getStartAt();
-	}
-
-	public LocalDateTime getEndAt() {
-		return this.movieTime.getEndAt();
-	}
-
-	public Integer getTheaterNumber() {
-		return this.seat.getTheaterNumber();
-	}
-
-	public String getMovieTitle() {
-		return this.movieTime.getMovieTitle();
-	}
-
-	public void registerPayment(Long id) {
-		if (this.paymentId != null) {
-			throw ErrorCode.throwDuplicatePayment();
-		}
-
-		this.paymentId = id;
-	}
-
-
 }

server/src/main/java/com/ticketing/server/movie/domain/repository/MovieRepository.java

@@ -13,14 +13,6 @@ public interface MovieRepository extends JpaRepository<Movie, Long> {
 
     Optional<Movie> findByTitle(String title);
 
-	Optional<Movie> findByIdAndDeletedAtNull(Long id);
-
-	@Query(value = "SELECT m "
-		+ "FROM Movie m "
-		+ "WHERE title = :title "
-		+ "AND deleted_at IS NULL")
-	Optional<Movie> findValidMovieWithTitle(String title);
-
     @Query(value = "SELECT * "
         + "FROM movie "
         + "WHERE deleted_at IS NULL", nativeQuery = true)

server/src/main/java/com/ticketing/server/movie/domain/repository/TicketRepository.java

@@ -1,24 +1,10 @@
 package com.ticketing.server.movie.domain.repository;
 
 import com.ticketing.server.movie.domain.Ticket;
-import java.util.List;
 import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.data.jpa.repository.Query;
-import org.springframework.data.repository.query.Param;
 import org.springframework.stereotype.Repository;
 
 @Repository
 public interface TicketRepository extends JpaRepository<Ticket, Long> {
 
-	@Query(
-		value =
-			"SELECT t "
-			+ "FROM Ticket t "
-			+ "JOIN FETCH t.movieTime mt "
-			+ "JOIN FETCH t.seat s "
-			+ "JOIN FETCH s.theater th "
-			+ "WHERE t.paymentId = :paymentId "
-	)
-	List<Ticket> findTicketFetchJoinByPaymentId(@Param("paymentId") Long paymentId);
-
 }

server/src/main/java/com/ticketing/server/movie/service/MovieServiceImpl.java

@@ -1,17 +1,11 @@
 package com.ticketing.server.movie.service;
 
-import com.ticketing.server.global.exception.ErrorCode;
 import com.ticketing.server.movie.domain.Movie;
 import com.ticketing.server.movie.domain.repository.MovieRepository;
-import com.ticketing.server.movie.service.dto.DeletedMovieDTO;
-import com.ticketing.server.movie.service.dto.MovieDTO;
-import com.ticketing.server.movie.service.dto.MovieListDTO;
-import com.ticketing.server.movie.service.dto.RegisteredMovieDTO;
+import com.ticketing.server.movie.service.dto.MovieDto;
 import com.ticketing.server.movie.service.interfaces.MovieService;
 import java.util.List;
-import java.util.Optional;
 import java.util.stream.Collectors;
-import javax.transaction.Transactional;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
@@ -21,42 +15,15 @@ import org.springframework.stereotype.Service;
 @Slf4j
 public class MovieServiceImpl implements MovieService {
 
-	private final MovieRepository movieRepository;
+    private final MovieRepository movieRepository;
 
-	@Override
-	public RegisteredMovieDTO registerMovie(String title, Long runningTime) {
-		Optional<Movie> movie = movieRepository.findValidMovieWithTitle(title);
+    public List<MovieDto> getMovies() {
+        List<Movie> movies = movieRepository.findValidMovies();
 
-		if(movie.isEmpty()) {
-			Movie newMovie = movieRepository.save(
-				new Movie(title, runningTime)
-			);
+        return movies.stream()
+            .map(MovieDto::from)
+            .collect(Collectors.toList());
 
-			return new RegisteredMovieDTO(newMovie);
-		}
+    }
 
-		throw ErrorCode.throwDuplicateMovie();
-	}
-
-	@Override
-	public MovieListDTO getMovies() {
-		List<Movie> movies = movieRepository.findValidMovies();
-
-		List<MovieDTO> movieDtos = movies.stream()
-			.map(movie -> movie.toMovieDTO())
-			.collect(Collectors.toList());
-
-		return new MovieListDTO(movieDtos);
-	}
-
-	@Override
-	@Transactional
-	public DeletedMovieDTO deleteMovie(Long id) {
-		Movie movie = movieRepository.findByIdAndDeletedAtNull(id)
-			.orElseThrow(ErrorCode::throwMovieNotFound);
-
-		Movie deletedMovie = movie.delete();
-
-		return new DeletedMovieDTO(deletedMovie);
-	}
 }

server/src/main/java/com/ticketing/server/movie/service/MovieTimeServiceImpl.java

@@ -5,7 +5,7 @@ import com.ticketing.server.movie.domain.Movie;
 import com.ticketing.server.movie.domain.MovieTime;
 import com.ticketing.server.movie.domain.repository.MovieRepository;
 import com.ticketing.server.movie.domain.repository.MovieTimeRepository;
-import com.ticketing.server.movie.service.dto.MovieTimeDTO;
+import com.ticketing.server.movie.service.dto.MovieTimeDto;
 import com.ticketing.server.movie.service.interfaces.MovieTimeService;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
@@ -25,7 +25,7 @@ public class MovieTimeServiceImpl implements MovieTimeService {
 	private final MovieTimeRepository movieTimeRepository;
 
 	@Override
-	public List<MovieTimeDTO> getMovieTimes(String title, LocalDate runningDate) {
+	public List<MovieTimeDto> getMovieTimes(String title, LocalDate runningDate) {
 		Movie movie = movieRepository.findByTitle(title)
 			.orElseThrow(ErrorCode::throwMovieNotFound);
 
@@ -35,7 +35,7 @@ public class MovieTimeServiceImpl implements MovieTimeService {
 		List<MovieTime> movieTimes = movieTimeRepository.findValidMovieTimes(movie, startOfDay, endOfDay);
 
 		return movieTimes.stream()
-			.map(MovieTimeDTO::from)
+			.map(MovieTimeDto::from)
 			.collect(Collectors.toList());
 
 	}

server/src/main/java/com/ticketing/server/movie/service/TicketServiceImpl.java

@@ -1,40 +1,9 @@
 package com.ticketing.server.movie.service;
 
-import com.ticketing.server.global.exception.ErrorCode;
-import com.ticketing.server.movie.domain.repository.TicketRepository;
-import com.ticketing.server.movie.service.dto.TicketDetailsDTO;
 import com.ticketing.server.movie.service.interfaces.TicketService;
-import com.ticketing.server.payment.service.dto.TicketDetailDTO;
-import java.util.List;
-import java.util.stream.Collectors;
-import javax.validation.constraints.NotNull;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-import org.springframework.validation.annotation.Validated;
 
 @Service
-@RequiredArgsConstructor
-@Transactional(readOnly = true)
-@Validated
-@Slf4j
 public class TicketServiceImpl implements TicketService {
 
-	private final TicketRepository ticketRepository;
-
-	@Override
-	public TicketDetailsDTO findTicketsByPaymentId(@NotNull Long paymentId) {
-		List<TicketDetailDTO> ticketDetails = ticketRepository.findTicketFetchJoinByPaymentId(paymentId)
-			.stream()
-			.map(TicketDetailDTO::new)
-			.collect(Collectors.toList());
-
-		if (ticketDetails.isEmpty()) {
-			throw ErrorCode.throwPaymentIdNotFound();
-		}
-
-		return new TicketDetailsDTO(ticketDetails);
-	}
-
 }

server/src/main/java/com/ticketing/server/movie/service/dto/DeletedMovieDTO.java

@@ -1,32 +0,0 @@
-package com.ticketing.server.movie.service.dto;
-
-import com.ticketing.server.movie.application.response.MovieDeleteResponse;
-import com.ticketing.server.movie.domain.Movie;
-import java.time.LocalDateTime;
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
-public class DeletedMovieDTO {
-
-	private final Long id;
-
-	private final String title;
-
-	private final LocalDateTime deletedAt;
-
-	public DeletedMovieDTO(Movie movie) {
-		this(
-			movie.getId(),
-			movie.getTitle(),
-			movie.getDeletedAt()
-		);
-	}
-
-	public MovieDeleteResponse toResponse() {
-		return new MovieDeleteResponse(id, title, deletedAt);
-	}
-
-}

server/src/main/java/com/ticketing/server/movie/service/dto/MovieDTO.java

@@ -1,14 +0,0 @@
-package com.ticketing.server.movie.service.dto;
-
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class MovieDTO {
-
-	private Long movieId;
-
-    private String title;
-
-}

server/src/main/java/com/ticketing/server/movie/service/dto/MovieDto.java

@@ -0,0 +1,18 @@
+package com.ticketing.server.movie.service.dto;
+
+import com.ticketing.server.movie.domain.Movie;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class MovieDto {
+
+    private String title;
+
+    public static MovieDto from(Movie movie) {
+        return new MovieDto(movie.getTitle());
+    }
+
+}

server/src/main/java/com/ticketing/server/movie/service/dto/MovieListDTO.java

@@ -1,18 +0,0 @@
-package com.ticketing.server.movie.service.dto;
-
-import com.ticketing.server.movie.application.response.MovieListResponse;
-import java.util.List;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor()
-public class MovieListDTO {
-
-	private final List<MovieDTO> movieDtos;
-
-	public MovieListResponse toResponse() {
-		return new MovieListResponse(movieDtos);
-	}
-
-}

server/src/main/java/com/ticketing/server/movie/service/dto/MovieRegisterDTO.java

@@ -1,24 +0,0 @@
-package com.ticketing.server.movie.service.dto;
-
-import com.ticketing.server.movie.domain.Movie;
-import javax.validation.constraints.NotEmpty;
-import javax.validation.constraints.NotNull;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-
-@Getter
-@NoArgsConstructor
-@AllArgsConstructor
-public class MovieRegisterDTO {
-
-	@NotEmpty(message = "{validation.not.empty.title}")
-	private String title;
-
-	@NotNull(message = "{validation.not.null.runningTime}")
-	private Long runningTime;
-
-	public Movie toMovie() {
-		return new Movie(this.title, this.runningTime);
-	}
-}

server/src/main/java/com/ticketing/server/movie/service/dto/MovieTimeDto.java

@@ -8,7 +8,7 @@ import lombok.Getter;
 
 @Getter
 @AllArgsConstructor(access = AccessLevel.PRIVATE)
-public class MovieTimeDTO {
+public class MovieTimeDto {
 
     private Long movieTimeId;
 
@@ -20,8 +20,8 @@ public class MovieTimeDTO {
 
     private LocalDateTime endAt;
 
-    public static MovieTimeDTO from(MovieTime movieTime) {
-        return new MovieTimeDTO(movieTime.getId(), movieTime.getTheater().getTheaterNumber(),
+    public static MovieTimeDto from(MovieTime movieTime) {
+        return new MovieTimeDto(movieTime.getId(), movieTime.getTheater().getTheaterNumber(),
             movieTime.getRound(), movieTime.getStartAt(), movieTime.getEndAt());
     }
 

server/src/main/java/com/ticketing/server/movie/service/dto/RegisteredMovieDTO.java

@@ -1,28 +0,0 @@
-package com.ticketing.server.movie.service.dto;
-
-import com.ticketing.server.movie.application.response.MovieInfoResponse;
-import com.ticketing.server.movie.domain.Movie;
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
-public class RegisteredMovieDTO {
-
-	private final Long id;
-
-	private final String title;
-
-	public RegisteredMovieDTO(Movie movie) {
-		this(
-			movie.getId(),
-			movie.getTitle()
-		);
-	}
-
-	public MovieInfoResponse toResponse() {
-		return new MovieInfoResponse(id, title);
-	}
-
-}

server/src/main/java/com/ticketing/server/movie/service/dto/TicketDetailsDTO.java

@@ -1,18 +0,0 @@
-package com.ticketing.server.movie.service.dto;
-
-import com.ticketing.server.movie.application.response.TicketDetailsResponse;
-import com.ticketing.server.payment.service.dto.TicketDetailDTO;
-import java.util.List;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class TicketDetailsDTO {
-
-	private final List<TicketDetailDTO> ticketDetails;
-
-	public TicketDetailsResponse toResponse() {
-		return new TicketDetailsResponse(ticketDetails);
-	}
-}

server/src/main/java/com/ticketing/server/movie/service/interfaces/MovieService.java

@@ -1,14 +1,10 @@
 package com.ticketing.server.movie.service.interfaces;
 
-import com.ticketing.server.movie.service.dto.DeletedMovieDTO;
-import com.ticketing.server.movie.service.dto.MovieListDTO;
-import com.ticketing.server.movie.service.dto.RegisteredMovieDTO;
+import com.ticketing.server.movie.service.dto.MovieDto;
+import java.util.List;
 
 public interface MovieService {
 
-	RegisteredMovieDTO registerMovie(String title, Long runningTime);
+    List<MovieDto> getMovies();
 
-	MovieListDTO getMovies();
-
-	DeletedMovieDTO deleteMovie(Long id);
 }

server/src/main/java/com/ticketing/server/movie/service/interfaces/MovieTimeService.java

@@ -1,11 +1,11 @@
 package com.ticketing.server.movie.service.interfaces;
 
-import com.ticketing.server.movie.service.dto.MovieTimeDTO;
+import com.ticketing.server.movie.service.dto.MovieTimeDto;
 import java.time.LocalDate;
 import java.util.List;
 
 public interface MovieTimeService {
 
-    List<MovieTimeDTO> getMovieTimes(String title, LocalDate runningDate);
+    List<MovieTimeDto> getMovieTimes(String title, LocalDate runningDate);
 
 }

server/src/main/java/com/ticketing/server/movie/service/interfaces/TicketService.java

@@ -1,10 +1,5 @@
 package com.ticketing.server.movie.service.interfaces;
 
-import com.ticketing.server.movie.service.dto.TicketDetailsDTO;
-import javax.validation.constraints.NotNull;
-
 public interface TicketService {
 
-	TicketDetailsDTO findTicketsByPaymentId(@NotNull Long paymentId);
-
 }

server/src/main/java/com/ticketing/server/movie/setup/MovieSetupService.java

@@ -9,20 +9,11 @@ import com.ticketing.server.movie.domain.repository.MovieRepository;
 import com.ticketing.server.movie.domain.repository.MovieTimeRepository;
 import com.ticketing.server.movie.domain.repository.TheaterRepository;
 import com.ticketing.server.movie.domain.repository.TicketRepository;
-import com.ticketing.server.payment.domain.Payment;
-import com.ticketing.server.payment.domain.PaymentStatus;
-import com.ticketing.server.payment.domain.PaymentType;
-import com.ticketing.server.payment.domain.repository.PaymentRepository;
-import com.ticketing.server.payment.service.dto.CreatePaymentDTO;
-import com.ticketing.server.user.domain.User;
-import com.ticketing.server.user.domain.UserGrade;
-import com.ticketing.server.user.domain.repository.UserRepository;
 import java.time.LocalDateTime;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import lombok.RequiredArgsConstructor;
-import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -31,14 +22,10 @@ import org.springframework.transaction.annotation.Transactional;
 public class
 MovieSetupService {
 
-	private final UserRepository userRepository;
 	private final MovieRepository movieRepository;
 	private final MovieTimeRepository movieTimeRepository;
 	private final TheaterRepository theaterRepository;
 	private final TicketRepository ticketRepository;
-	private final PaymentRepository paymentRepository;
-
-	private final PasswordEncoder passwordEncoder;
 
 	@Transactional
 	public void init() {
@@ -46,7 +33,6 @@ MovieSetupService {
 		initTheater();
 		initMovieTime();
 		initTicket();
-		initPayment();
 	}
 
 	private void initMovie() {
@@ -68,9 +54,9 @@ MovieSetupService {
 		);
 
 		for (Theater theater : theaters) {
-			for (int col = 1; col <= 2; col++) {
-				for (int row = 1; row <= 10; row++) {
-					new Seat(col, row, theater);
+			for (int row = 1; row <= 2; row++) {
+				for (int col = 1; col <= 10; col++) {
+					new Seat(row, col, theater);
 				}
 			}
 		}
@@ -86,14 +72,14 @@ MovieSetupService {
 
 		List<MovieTime> movieTimes = new ArrayList<>();
 		for (Theater theater : theaters) {
-			movieTimes.add(new MovieTime(movies.get(0), theater, 1, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 8, 0)));
-			movieTimes.add(new MovieTime(movies.get(0), theater, 3, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 12, 0)));
-			movieTimes.add(new MovieTime(movies.get(1), theater, 2, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 10, 0)));
-			movieTimes.add(new MovieTime(movies.get(2), theater, 4, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 14, 0)));
-			movieTimes.add(new MovieTime(movies.get(0), theater, 5, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 16, 0)));
-			movieTimes.add(new MovieTime(movies.get(3), theater, 6, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 18, 0)));
-			movieTimes.add(new MovieTime(movies.get(0), theater, 7, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 21, 0)));
-			movieTimes.add(new MovieTime(movies.get(4), theater, 8, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 23, 0)));
+			movieTimes.add(MovieTime.of(movies.get(0), theater, 1, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 8, 0)));
+			movieTimes.add(MovieTime.of(movies.get(0), theater, 3, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 12, 0)));
+			movieTimes.add(MovieTime.of(movies.get(1), theater, 2, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 10, 0)));
+			movieTimes.add(MovieTime.of(movies.get(2), theater, 4, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 14, 0)));
+			movieTimes.add(MovieTime.of(movies.get(0), theater, 5, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 16, 0)));
+			movieTimes.add(MovieTime.of(movies.get(3), theater, 6, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 18, 0)));
+			movieTimes.add(MovieTime.of(movies.get(0), theater, 7, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 21, 0)));
+			movieTimes.add(MovieTime.of(movies.get(4), theater, 8, LocalDateTime.of(now.getYear(), now.getMonthValue(), now.getDayOfMonth(), 23, 0)));
 		}
 
 		movieTimeRepository.saveAll(movieTimes);
@@ -106,26 +92,11 @@ MovieSetupService {
 		Integer ticketPrice = 15_000;
 		for (MovieTime movieTime : movieTimes) {
 			for (Seat seat : movieTime.getSeats()) {
-				tickets.add(new Ticket(seat, movieTime, ticketPrice));
+				tickets.add(Ticket.of(seat, movieTime, ticketPrice));
 			}
 		}
 
 		ticketRepository.saveAll(tickets);
 	}
 
-	private void initPayment() {
-		User user = userRepository.save(new User(123L, "김동효", "kdhyo98@gmail.com", passwordEncoder.encode("123123"), UserGrade.USER, "010-1234-5678"));
-
-		List<Ticket> tickets = ticketRepository.findAll();
-		Ticket ticket = tickets.get(0);
-		String title = ticket.getMovieTime().getMovie().getTitle();
-		CreatePaymentDTO createPaymentDto = new CreatePaymentDTO(user.getAlternateId(), title, PaymentType.KAKAO_PAY, PaymentStatus.COMPLETED, "2022-0710-4142", 30_000);
-		Payment payment = createPaymentDto.toEntity();
-
-		paymentRepository.save(payment);
-
-		ticket.registerPayment(payment.getId());
-		tickets.get(1).registerPayment(payment.getId());
-	}
-
 }

server/src/main/java/com/ticketing/server/payment/api/MovieClient.java

@@ -1,10 +0,0 @@
-package com.ticketing.server.payment.api;
-
-import com.ticketing.server.movie.application.response.TicketDetailsResponse;
-import javax.validation.constraints.NotNull;
-
-public interface MovieClient {
-
-	TicketDetailsResponse getTicketsByPaymentId(@NotNull Long paymentId);
-
-}

server/src/main/java/com/ticketing/server/payment/api/UserClient.java

@@ -1,8 +0,0 @@
-package com.ticketing.server.payment.api;
-
-import com.ticketing.server.payment.api.dto.response.UserDetailResponse;
-
-public interface UserClient {
-
-	UserDetailResponse detail();
-}

server/src/main/java/com/ticketing/server/payment/api/dto/response/UserDetailResponse.java

@@ -1,34 +0,0 @@
-package com.ticketing.server.payment.api.dto.response;
-
-import com.ticketing.server.payment.domain.Payment;
-import com.ticketing.server.user.domain.UserGrade;
-import com.ticketing.server.user.service.dto.UserDetailDTO;
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
-public class UserDetailResponse {
-
-	private final Long userAlternateId;
-	private final String name;
-	private final String email;
-	private final UserGrade grade;
-	private final String phone;
-
-	public UserDetailResponse(UserDetailDTO userDetailDto) {
-		this(
-			userDetailDto.getAlternateId(),
-			userDetailDto.getName(),
-			userDetailDto.getEmail(),
-			userDetailDto.getGrade(),
-			userDetailDto.getPhone()
-		);
-	}
-
-	public boolean hasUserAlternateId(Payment payment) {
-		return userAlternateId.equals(payment.getUserAlternateId());
-	}
-
-}

server/src/main/java/com/ticketing/server/payment/api/impl/MovieClientImpl.java

@@ -1,25 +0,0 @@
-package com.ticketing.server.payment.api.impl;
-
-import com.ticketing.server.movie.application.response.TicketDetailsResponse;
-import com.ticketing.server.movie.service.dto.TicketDetailsDTO;
-import com.ticketing.server.movie.service.interfaces.TicketService;
-import com.ticketing.server.payment.api.MovieClient;
-import javax.validation.constraints.NotNull;
-import lombok.RequiredArgsConstructor;
-import org.springframework.stereotype.Service;
-import org.springframework.validation.annotation.Validated;
-
-@Service
-@RequiredArgsConstructor
-@Validated
-public class MovieClientImpl implements MovieClient {
-
-	private final TicketService ticketService;
-
-	@Override
-	public TicketDetailsResponse getTicketsByPaymentId(@NotNull Long paymentId) {
-		TicketDetailsDTO ticketDetails = ticketService.findTicketsByPaymentId(paymentId);
-		return ticketDetails.toResponse();
-	}
-
-}

server/src/main/java/com/ticketing/server/payment/api/impl/UserClientImpl.java

@@ -1,28 +0,0 @@
-package com.ticketing.server.payment.api.impl;
-
-import com.ticketing.server.payment.api.UserClient;
-import com.ticketing.server.payment.api.dto.response.UserDetailResponse;
-import com.ticketing.server.user.service.dto.UserDetailDTO;
-import com.ticketing.server.user.service.interfaces.UserService;
-import lombok.RequiredArgsConstructor;
-import org.springframework.security.core.Authentication;
-import org.springframework.security.core.context.SecurityContextHolder;
-import org.springframework.security.core.userdetails.UserDetails;
-import org.springframework.stereotype.Service;
-
-@Service
-@RequiredArgsConstructor
-public class UserClientImpl implements UserClient {
-
-	private final UserService userService;
-
-	@Override
-	public UserDetailResponse detail() {
-		Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
-		UserDetails details = (UserDetails) authentication.getPrincipal();
-
-		UserDetailDTO userDetail = userService.findDetailByEmail(details.getUsername());
-		return new UserDetailResponse(userDetail);
-	}
-
-}

server/src/main/java/com/ticketing/server/payment/application/PaymentController.java

@@ -1,47 +1,8 @@
 package com.ticketing.server.payment.application;
 
-import com.ticketing.server.payment.application.response.PaymentDetailResponse;
-import com.ticketing.server.payment.application.response.SimplePaymentsResponse;
-import com.ticketing.server.payment.service.dto.PaymentDetailDTO;
-import com.ticketing.server.payment.service.dto.SimplePaymentsDTO;
-import com.ticketing.server.payment.service.interfaces.PaymentApisService;
-import com.ticketing.server.payment.service.interfaces.PaymentService;
-import com.ticketing.server.user.domain.UserGrade;
-import javax.validation.constraints.NotNull;
-import lombok.RequiredArgsConstructor;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.ResponseEntity;
-import org.springframework.security.access.annotation.Secured;
-import org.springframework.validation.annotation.Validated;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
-@RequiredArgsConstructor
-@RequestMapping("/api/payments")
-@Validated
 public class PaymentController {
 
-	private final PaymentApisService paymentApisService;
-	private final PaymentService paymentService;
-
-	@GetMapping
-	@Secured(UserGrade.ROLES.USER)
-	public ResponseEntity<SimplePaymentsResponse> simplePayments(@NotNull Long userAlternateId) {
-		SimplePaymentsDTO simplePayments = paymentService.findSimplePayments(userAlternateId);
-
-		return ResponseEntity.status(HttpStatus.OK)
-			.body(simplePayments.toResponse());
-	}
-
-	@GetMapping("/detail")
-	@Secured(UserGrade.ROLES.USER)
-	public ResponseEntity<PaymentDetailResponse> detail(@NotNull Long paymentId) {
-		PaymentDetailDTO paymentDetail = paymentApisService.findPaymentDetail(paymentId);
-
-		return ResponseEntity.status(HttpStatus.OK)
-			.body(paymentDetail.toResponse());
-	}
-
 }

server/src/main/java/com/ticketing/server/payment/application/response/PaymentDetailResponse.java

@@ -1,20 +0,0 @@
-package com.ticketing.server.payment.application.response;
-
-import com.ticketing.server.payment.service.dto.TicketDetailDTO;
-import java.time.LocalDateTime;
-import java.util.List;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class PaymentDetailResponse {
-
-	private Long paymentId;
-	private String movieTitle;
-	private String paymentNumber;
-	private Integer totalPrice;
-	private LocalDateTime createdAt;
-	private List<TicketDetailDTO> tickets;
-
-}

server/src/main/java/com/ticketing/server/payment/application/response/SimplePaymentsResponse.java

@@ -1,15 +0,0 @@
-package com.ticketing.server.payment.application.response;
-
-import com.ticketing.server.payment.service.dto.SimplePaymentDTO;
-import java.util.List;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class SimplePaymentsResponse {
-
-	private final Long userAlternateId;
-	private final List<SimplePaymentDTO> payments;
-
-}

server/src/main/java/com/ticketing/server/payment/domain/Payment.java

@@ -1,7 +1,7 @@
 package com.ticketing.server.payment.domain;
 
 import com.ticketing.server.global.dto.repository.AbstractEntity;
-import javax.persistence.Column;
+import com.ticketing.server.payment.service.dto.CreatePaymentDto;
 import javax.persistence.Entity;
 import javax.persistence.EnumType;
 import javax.persistence.Enumerated;
@@ -17,36 +17,29 @@ import lombok.NoArgsConstructor;
 public class Payment extends AbstractEntity {
 
 	@NotNull
-	@Column(name = "user_alternate_id", nullable = false)
-	private Long userAlternateId;
+	private Long userId;
 
 	@NotEmpty
-	@Column(name = "movie_title", nullable = false)
 	private String movieTitle;
 
 	@NotNull
-	@Column(name = "type", nullable = false)
 	@Enumerated(value = EnumType.STRING)
 	private PaymentType type;
 
 	@NotNull
-	@Column(name = "status", nullable = false)
 	@Enumerated(value = EnumType.STRING)
 	private PaymentStatus status;
 
-	@Column(name = "failed_message")
 	private String failedMessage;
 
 	@NotEmpty
-	@Column(name = "payment_number", nullable = false)
 	private String paymentNumber;
 
 	@NotNull
-	@Column(name = "total_price", nullable = false)
 	private Integer totalPrice;
 
-	public Payment(Long userAlternateId, String movieTitle, PaymentType type, PaymentStatus status, String paymentNumber, Integer totalPrice) {
-		this.userAlternateId = userAlternateId;
+	private Payment(Long userId, String movieTitle, PaymentType type, PaymentStatus status, String paymentNumber, Integer totalPrice) {
+		this.userId = userId;
 		this.movieTitle = movieTitle;
 		this.type = type;
 		this.status = status;
@@ -54,14 +47,13 @@ public class Payment extends AbstractEntity {
 		this.totalPrice = totalPrice;
 	}
 
-	Payment(Long id, Long userAlternateId, String movieTitle, PaymentType type, PaymentStatus status, String paymentNumber, Integer totalPrice) {
-		this.id = id;
-		this.userAlternateId = userAlternateId;
-		this.movieTitle = movieTitle;
-		this.type = type;
-		this.status = status;
-		this.paymentNumber = paymentNumber;
-		this.totalPrice = totalPrice;
+	public static Payment from(CreatePaymentDto dto) {
+		return new Payment(dto.getUserId(),
+			dto.getMovieTitle(),
+			dto.getType(),
+			dto.getStatus(),
+			dto.getPaymentNumber(),
+			dto.getTotalPrice());
 	}
 
 }

server/src/main/java/com/ticketing/server/payment/domain/repository/PaymentRepository.java

@@ -8,6 +8,5 @@ import org.springframework.stereotype.Repository;
 @Repository
 public interface PaymentRepository extends JpaRepository<Payment, Long> {
 
-	List<Payment> findByUserAlternateId(Long userId);
-
+	List<Payment> findByUserId(Long userId);
 }

server/src/main/java/com/ticketing/server/payment/service/PaymentApisServiceImpl.java

@@ -1,44 +0,0 @@
-package com.ticketing.server.payment.service;
-
-import com.ticketing.server.global.exception.ErrorCode;
-import com.ticketing.server.movie.application.response.TicketDetailsResponse;
-import com.ticketing.server.payment.api.MovieClient;
-import com.ticketing.server.payment.api.UserClient;
-import com.ticketing.server.payment.api.dto.response.UserDetailResponse;
-import com.ticketing.server.payment.domain.Payment;
-import com.ticketing.server.payment.domain.repository.PaymentRepository;
-import com.ticketing.server.payment.service.dto.PaymentDetailDTO;
-import com.ticketing.server.payment.service.interfaces.PaymentApisService;
-import javax.validation.constraints.NotNull;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-import org.springframework.validation.annotation.Validated;
-
-@Service
-@RequiredArgsConstructor
-@Transactional(readOnly = true)
-@Validated
-@Slf4j
-public class PaymentApisServiceImpl implements PaymentApisService {
-
-	private final PaymentRepository paymentRepository;
-	private final MovieClient movieClient;
-	private final UserClient userClient;
-
-	@Override
-	public PaymentDetailDTO findPaymentDetail(@NotNull Long paymentId) {
-		Payment payment = paymentRepository.findById(paymentId)
-			.orElseThrow(ErrorCode::throwPaymentIdNotFound);
-
-		UserDetailResponse userDetail = userClient.detail();
-		if (!userDetail.hasUserAlternateId(payment)) {
-			throw ErrorCode.throwValidUserId();
-		}
-
-		TicketDetailsResponse tickets = movieClient.getTicketsByPaymentId(payment.getId());
-		return new PaymentDetailDTO(payment, tickets);
-	}
-
-}

server/src/main/java/com/ticketing/server/payment/service/PaymentServiceImpl.java

@@ -1,37 +1,26 @@
 package com.ticketing.server.payment.service;
 
 import com.ticketing.server.payment.domain.repository.PaymentRepository;
-import com.ticketing.server.payment.service.dto.SimplePaymentDTO;
-import com.ticketing.server.payment.service.dto.SimplePaymentsDTO;
+import com.ticketing.server.payment.service.dto.SimplePaymentDto;
 import com.ticketing.server.payment.service.interfaces.PaymentService;
+import com.ticketing.server.user.api.dto.response.SimplePaymentsResponse;
 import java.util.stream.Collectors;
-import javax.validation.constraints.NotNull;
 import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-import org.springframework.validation.annotation.Validated;
 
 @Service
 @RequiredArgsConstructor
-@Transactional(readOnly = true)
-@Validated
-@Slf4j
 public class PaymentServiceImpl implements PaymentService {
 
 	private final PaymentRepository paymentRepository;
 
 	@Override
-	public SimplePaymentsDTO findSimplePayments(@NotNull Long userAlternateId) {
-		return paymentRepository.findByUserAlternateId(userAlternateId)
+	public SimplePaymentsResponse findSimplePayments(Long userId) {
+		return paymentRepository.findByUserId(userId)
 			.stream()
-			.map(SimplePaymentDTO::new)
-			.collect(Collectors
-				.collectingAndThen(
-					Collectors.toList()
-					, payments -> new SimplePaymentsDTO(userAlternateId, payments)
-				)
-			);
+			.map(SimplePaymentDto::from)
+			.collect(Collectors.collectingAndThen(Collectors.toList()
+				, list -> SimplePaymentsResponse.from(userId, list)));
 	}
 
 }

server/src/main/java/com/ticketing/server/payment/service/dto/CreatePaymentDTO.java

@@ -1,32 +0,0 @@
-package com.ticketing.server.payment.service.dto;
-
-import com.ticketing.server.payment.domain.Payment;
-import com.ticketing.server.payment.domain.PaymentStatus;
-import com.ticketing.server.payment.domain.PaymentType;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class CreatePaymentDTO {
-
-	private final Long userAlternateId;
-	private final String movieTitle;
-	private final PaymentType type;
-	private final PaymentStatus status;
-	private final String paymentNumber;
-	private final Integer totalPrice;
-
-	public Payment toEntity() {
-		return new Payment
-			(
-				this.getUserAlternateId(),
-				this.getMovieTitle(),
-				this.getType(),
-				this.getStatus(),
-				this.getPaymentNumber(),
-				this.getTotalPrice()
-			);
-	}
-
-}

server/src/main/java/com/ticketing/server/payment/service/dto/CreatePaymentDto.java

@@ -0,0 +1,30 @@
+package com.ticketing.server.payment.service.dto;
+
+import com.ticketing.server.payment.domain.PaymentStatus;
+import com.ticketing.server.payment.domain.PaymentType;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class CreatePaymentDto {
+
+	private Long userId;
+	private String movieTitle;
+	private PaymentType type;
+	private PaymentStatus status;
+	private String paymentNumber;
+	private Integer totalPrice;
+
+	public static CreatePaymentDto of(
+		Long userId,
+		String movieTitle,
+		PaymentType type,
+		PaymentStatus status,
+		String paymentNumber,
+		Integer totalPrice) {
+		return new CreatePaymentDto(userId, movieTitle, type, status, paymentNumber, totalPrice);
+	}
+
+}

server/src/main/java/com/ticketing/server/payment/service/dto/PaymentDetailDTO.java

@@ -1,39 +0,0 @@
-package com.ticketing.server.payment.service.dto;
-
-import com.ticketing.server.movie.application.response.TicketDetailsResponse;
-import com.ticketing.server.payment.application.response.PaymentDetailResponse;
-import com.ticketing.server.payment.domain.Payment;
-import com.ticketing.server.payment.service.dto.TicketDetailDTO;
-import java.time.LocalDateTime;
-import java.util.List;
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
-public class PaymentDetailDTO {
-
-	private final Long paymentId;
-	private final String movieTitle;
-	private final String paymentNumber;
-	private final Integer totalPrice;
-	private final LocalDateTime createdAt;
-	private final List<TicketDetailDTO> tickets;
-
-	public PaymentDetailDTO(Payment payment, TicketDetailsResponse ticketDetails) {
-		this(
-			payment.getId(),
-			payment.getMovieTitle(),
-			payment.getPaymentNumber(),
-			payment.getTotalPrice(),
-			payment.getCreatedAt(),
-			ticketDetails.getTicketDetails()
-		);
-	}
-
-	public PaymentDetailResponse toResponse() {
-		return new PaymentDetailResponse(paymentId, movieTitle, paymentNumber, totalPrice, createdAt, tickets);
-	}
-
-}

server/src/main/java/com/ticketing/server/payment/service/dto/SimplePaymentDto.java

@@ -7,15 +7,15 @@ import lombok.Getter;
 
 @Getter
 @AllArgsConstructor(access = AccessLevel.PRIVATE)
-public class SimplePaymentDTO {
+public class SimplePaymentDto {
 
-	private final Long paymentId;
-	private final String movieTitle;
-	private final String paymentNumber;
-	private final Integer totalPrice;
+	private Long paymentId;
+	private String movieTitle;
+	private String paymentNumber;
+	private Integer totalPrice;
 
-	public SimplePaymentDTO(Payment payment) {
-		this(
+	public static SimplePaymentDto from(Payment payment) {
+		return new SimplePaymentDto(
 			payment.getId(),
 			payment.getMovieTitle(),
 			payment.getPaymentNumber(),

server/src/main/java/com/ticketing/server/payment/service/dto/SimplePaymentsDTO.java

@@ -1,19 +0,0 @@
-package com.ticketing.server.payment.service.dto;
-
-import com.ticketing.server.payment.application.response.SimplePaymentsResponse;
-import java.util.List;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class SimplePaymentsDTO {
-
-	private final Long userAlternateId;
-	private final List<SimplePaymentDTO> payments;
-
-	public SimplePaymentsResponse toResponse() {
-		return new SimplePaymentsResponse(userAlternateId, payments);
-	}
-
-}

server/src/main/java/com/ticketing/server/payment/service/dto/TicketDetailDTO.java

@@ -1,31 +0,0 @@
-package com.ticketing.server.payment.service.dto;
-
-import com.ticketing.server.movie.domain.Ticket;
-import java.time.LocalDateTime;
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
-public class TicketDetailDTO {
-
-	private final Integer price;
-	private final Integer theaterNumber;
-	private final Integer column;
-	private final Integer row;
-	private final LocalDateTime startAt;
-	private final LocalDateTime endAt;
-
-	public TicketDetailDTO(Ticket ticket) {
-		this(
-			ticket.getTicketPrice(),
-			ticket.getTheaterNumber(),
-			ticket.getColumn(),
-			ticket.getRow(),
-			ticket.getStartAt(),
-			ticket.getEndAt()
-		);
-	}
-
-}

server/src/main/java/com/ticketing/server/payment/service/interfaces/PaymentApisService.java

@@ -1,9 +0,0 @@
-package com.ticketing.server.payment.service.interfaces;
-
-import com.ticketing.server.payment.service.dto.PaymentDetailDTO;
-import javax.validation.constraints.NotNull;
-
-public interface PaymentApisService {
-
-	PaymentDetailDTO findPaymentDetail(@NotNull Long paymentId);
-}

server/src/main/java/com/ticketing/server/payment/service/interfaces/PaymentService.java

@@ -1,10 +1,9 @@
 package com.ticketing.server.payment.service.interfaces;
 
-import com.ticketing.server.payment.service.dto.SimplePaymentsDTO;
-import javax.validation.constraints.NotNull;
+import com.ticketing.server.user.api.dto.response.SimplePaymentsResponse;
 
 public interface PaymentService {
 
-	SimplePaymentsDTO findSimplePayments(@NotNull Long userAlternateId);
+	SimplePaymentsResponse findSimplePayments(Long userId);
 
 }

server/src/main/java/com/ticketing/server/user/api/PaymentClient.java

@@ -1,10 +1,10 @@
 package com.ticketing.server.user.api;
 
-import com.ticketing.server.payment.application.response.SimplePaymentsResponse;
-import javax.validation.constraints.NotNull;
+import com.ticketing.server.user.api.dto.request.SimplePaymentsRequest;
+import com.ticketing.server.user.api.dto.response.SimplePaymentsResponse;
 
 public interface PaymentClient {
 
-	SimplePaymentsResponse getPayments(@NotNull Long alternateId);
+	SimplePaymentsResponse getSimplePayments(SimplePaymentsRequest request);
 
 }

server/src/main/java/com/ticketing/server/user/api/dto/request/SimplePaymentsRequest.java

@@ -0,0 +1,18 @@
+package com.ticketing.server.user.api.dto.request;
+
+import com.ticketing.server.user.domain.User;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class SimplePaymentsRequest {
+
+	private Long userId;
+
+	public static SimplePaymentsRequest from(User user) {
+		return new SimplePaymentsRequest(user.getId());
+	}
+
+}

server/src/main/java/com/ticketing/server/user/api/dto/response/SimplePaymentsResponse.java

@@ -0,0 +1,21 @@
+package com.ticketing.server.user.api.dto.response;
+
+import com.ticketing.server.payment.service.dto.SimplePaymentDto;
+import java.util.List;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class SimplePaymentsResponse {
+
+	private Long userId;
+
+	private List<SimplePaymentDto> payments;
+
+	public static SimplePaymentsResponse from(Long userId, List<SimplePaymentDto> simplePayments) {
+		return new SimplePaymentsResponse(userId, simplePayments);
+	}
+
+}

server/src/main/java/com/ticketing/server/user/api/impl/PaymentClientImpl.java

@@ -1,10 +1,9 @@
 package com.ticketing.server.user.api.impl;
 
-import com.ticketing.server.payment.application.response.SimplePaymentsResponse;
-import com.ticketing.server.payment.service.dto.SimplePaymentsDTO;
-import com.ticketing.server.payment.service.interfaces.PaymentService;
+import com.ticketing.server.payment.service.PaymentServiceImpl;
 import com.ticketing.server.user.api.PaymentClient;
-import javax.validation.constraints.NotNull;
+import com.ticketing.server.user.api.dto.request.SimplePaymentsRequest;
+import com.ticketing.server.user.api.dto.response.SimplePaymentsResponse;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 
@@ -12,12 +11,11 @@ import org.springframework.stereotype.Service;
 @RequiredArgsConstructor
 public class PaymentClientImpl implements PaymentClient {
 
-	private final PaymentService paymentService;
+	private final PaymentServiceImpl paymentService;
 
 	@Override
-	public SimplePaymentsResponse getPayments(@NotNull Long alternateId) {
-		SimplePaymentsDTO payments = paymentService.findSimplePayments(alternateId);
-		return payments.toResponse();
+	public SimplePaymentsResponse getSimplePayments(SimplePaymentsRequest request) {
+		return paymentService.findSimplePayments(request.getUserId());
 	}
 
 }

server/src/main/java/com/ticketing/server/user/application/AuthController.java

@@ -2,9 +2,7 @@ package com.ticketing.server.user.application;
 
 import com.ticketing.server.user.application.request.LoginRequest;
 import com.ticketing.server.user.application.response.LogoutResponse;
-import com.ticketing.server.user.service.dto.TokenDTO;
-import com.ticketing.server.user.application.response.TokenResponse;
-import com.ticketing.server.user.service.dto.DeleteRefreshTokenDTO;
+import com.ticketing.server.user.application.response.TokenDto;
 import com.ticketing.server.user.service.interfaces.AuthenticationService;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -28,29 +26,29 @@ public class AuthController {
 	private final AuthenticationService authenticationService;
 
 	@PostMapping("/token")
-	public ResponseEntity<TokenResponse> login(@RequestBody LoginRequest loginRequest) {
-		TokenDTO tokenDto = authenticationService.generateTokenDto(loginRequest.toAuthentication());
+	public ResponseEntity<TokenDto> login(@RequestBody LoginRequest loginRequest) {
+		TokenDto tokenDto = authenticationService.generateTokenDto(loginRequest.toAuthentication());
 
 		return ResponseEntity.status(HttpStatus.OK)
 			.headers(getHttpHeaders())
-			.body(tokenDto.toResponse());
+			.body(tokenDto);
 	}
 
 	@PostMapping("/refresh")
-	public ResponseEntity<TokenResponse> refreshToken(@RequestParam("refreshToken") String refreshToken) {
-		TokenDTO tokenDto = authenticationService.reissueTokenDto(refreshToken);
+	public ResponseEntity<TokenDto> refreshToken(@RequestParam("refreshToken") String refreshToken) {
+		TokenDto tokenDto = authenticationService.reissueTokenDto(refreshToken);
 
 		return ResponseEntity.status(HttpStatus.OK)
 			.headers(getHttpHeaders())
-			.body(tokenDto.toResponse());
+			.body(tokenDto);
 	}
 
 	@PostMapping("/logout")
 	public ResponseEntity<LogoutResponse> logout(@AuthenticationPrincipal UserDetails userRequest) {
-		DeleteRefreshTokenDTO refreshToken = authenticationService.deleteRefreshToken(userRequest.getUsername());
+		LogoutResponse logoutResponse = authenticationService.deleteRefreshToken(userRequest.getUsername());
 
 		return ResponseEntity.status(HttpStatus.OK)
-			.body(refreshToken.toResponse());
+			.body(logoutResponse);
 	}
 
 	private HttpHeaders getHttpHeaders() {

server/src/main/java/com/ticketing/server/user/application/UserChangeGradeResponse.java

@@ -1,17 +0,0 @@
-package com.ticketing.server.user.application;
-
-import com.ticketing.server.user.domain.UserGrade;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class UserChangeGradeResponse {
-
-	private String email;
-
-	private UserGrade beforeGrade;
-
-	private UserGrade afterGrade;
-
-}

server/src/main/java/com/ticketing/server/user/application/UserController.java

@@ -1,26 +1,16 @@
 package com.ticketing.server.user.application;
 
-import static com.ticketing.server.user.domain.UserGrade.ROLES.ADMIN;
-import static com.ticketing.server.user.domain.UserGrade.ROLES.USER;
-
 import com.ticketing.server.user.application.request.SignUpRequest;
-import com.ticketing.server.user.application.request.UserChangeGradeRequest;
 import com.ticketing.server.user.application.request.UserChangePasswordRequest;
 import com.ticketing.server.user.application.request.UserDeleteRequest;
-import com.ticketing.server.user.application.response.PaymentsResponse;
 import com.ticketing.server.user.application.response.SignUpResponse;
+import com.ticketing.server.user.application.response.SimplePaymentDetailsResponse;
 import com.ticketing.server.user.application.response.UserChangePasswordResponse;
 import com.ticketing.server.user.application.response.UserDeleteResponse;
 import com.ticketing.server.user.application.response.UserDetailResponse;
-import com.ticketing.server.user.domain.ChangeGradeDTO;
-import com.ticketing.server.user.service.dto.ChangePasswordDTO;
-import com.ticketing.server.user.service.dto.ChangedPasswordUserDTO;
-import com.ticketing.server.user.service.dto.CreatedUserDTO;
-import com.ticketing.server.user.service.dto.DeletedUserDTO;
-import com.ticketing.server.user.service.dto.PaymentsDTO;
-import com.ticketing.server.user.service.dto.UserDetailDTO;
-import com.ticketing.server.user.service.interfaces.UserApisService;
-import com.ticketing.server.user.service.interfaces.UserService;
+import com.ticketing.server.user.domain.User;
+import com.ticketing.server.user.domain.UserGrade;
+import com.ticketing.server.user.service.UserServiceImpl;
 import javax.validation.Valid;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -44,64 +34,43 @@ import org.springframework.web.bind.annotation.RestController;
 @Slf4j
 public class UserController {
 
-	private final UserService userService;
-	private final UserApisService userApisService;
+	private final UserServiceImpl userService;
 	private final PasswordEncoder passwordEncoder;
 
 	@PostMapping
 	public ResponseEntity<SignUpResponse> register(@RequestBody @Valid SignUpRequest request) {
-		CreatedUserDTO createdUserDto = userService.register(request.toSignUpDto(passwordEncoder));
-
-		return ResponseEntity.status(HttpStatus.CREATED)
-			.body(createdUserDto.toResponse());
+		User user = userService.register(request.toSignUpDto(passwordEncoder));
+		return ResponseEntity.status(HttpStatus.CREATED).body(SignUpResponse.from(user));
 	}
 
 	@GetMapping("/details")
-	@Secured(USER)
+	@Secured("ROLE_GUEST")
 	public ResponseEntity<UserDetailResponse> details(@AuthenticationPrincipal UserDetails userRequest) {
-		UserDetailDTO userDetail = userService.findDetailByEmail(userRequest.getUsername());
-
-		return ResponseEntity.status(HttpStatus.OK)
-			.body(userDetail.toResponse());
+		User user = userService.findByEmail(userRequest.getUsername());
+		return ResponseEntity.status(HttpStatus.OK).body(UserDetailResponse.from(user));
 	}
 
 	@DeleteMapping
-	@Secured(USER)
+	@Secured(UserGrade.ROLES.GUEST)
 	public ResponseEntity<UserDeleteResponse> deleteUser(@RequestBody @Valid UserDeleteRequest request) {
-		DeletedUserDTO deletedUserDto = userService.delete(request.toDeleteUserDto(passwordEncoder));
-
-		return ResponseEntity.status(HttpStatus.OK)
-			.body(deletedUserDto.toResponse());
+		User user = userService.delete(request.toDeleteUserDto(passwordEncoder));
+		return ResponseEntity.status(HttpStatus.OK).body(UserDeleteResponse.from(user));
 	}
 
 	@PutMapping("/password")
-	@Secured(USER)
+	@Secured(UserGrade.ROLES.GUEST)
 	public ResponseEntity<UserChangePasswordResponse> changePassword(
 		@AuthenticationPrincipal UserDetails userRequest,
 		@RequestBody @Valid UserChangePasswordRequest request) {
-		ChangePasswordDTO changePasswordDto = request.toChangePasswordDto(userRequest.getUsername(), passwordEncoder);
-		ChangedPasswordUserDTO changedUserDto = userService.changePassword(changePasswordDto);
-
-		return ResponseEntity.status(HttpStatus.OK)
-			.body(changedUserDto.toResponse());
-	}
-
-	@PostMapping("/grade")
-	@Secured(ADMIN)
-	public ResponseEntity<UserChangeGradeResponse> changeGrade(@RequestBody @Valid UserChangeGradeRequest request) {
-		ChangeGradeDTO changeGradeDto = userService.changeGrade(request.getEmail(), request.getAfterGrade());
-
-		return ResponseEntity.status(HttpStatus.OK)
-			.body(changeGradeDto.toResponse());
+		User user = userService.changePassword(request.toChangePasswordDto(userRequest.getUsername(), passwordEncoder));
+		return ResponseEntity.status(HttpStatus.OK).body(UserChangePasswordResponse.from(user));
 	}
 
 	@GetMapping("/payments")
-	@Secured(USER)
-	public ResponseEntity<PaymentsResponse> getPayments(@AuthenticationPrincipal UserDetails userRequest) {
-		PaymentsDTO paymentsDto = userApisService.findPaymentsByEmail(userRequest.getUsername());
-
-		return ResponseEntity.status(HttpStatus.OK)
-			.body(paymentsDto.toResponse());
+	@Secured("ROLE_GUEST")
+	public ResponseEntity<SimplePaymentDetailsResponse> getPayments(@AuthenticationPrincipal UserDetails userRequest) {
+		SimplePaymentDetailsResponse paymentDetails = userService.findSimplePaymentDetails(userRequest.getUsername());
+		return ResponseEntity.status(HttpStatus.OK).body(paymentDetails);
 	}
 
 }

server/src/main/java/com/ticketing/server/user/application/request/UserChangeGradeRequest.java

@@ -1,19 +0,0 @@
-package com.ticketing.server.user.application.request;
-
-import com.ticketing.server.user.domain.UserGrade;
-import javax.validation.constraints.Email;
-import javax.validation.constraints.NotEmpty;
-import javax.validation.constraints.NotNull;
-import lombok.Getter;
-
-@Getter
-public class UserChangeGradeRequest {
-
-	@NotEmpty(message = "{validation.not.empty.email}")
-	@Email(message = "{validation.email}")
-	private String email;
-
-	@NotNull(message = "{validation.not.null.grade}")
-	private UserGrade afterGrade;
-
-}

server/src/main/java/com/ticketing/server/user/application/response/LogoutResponse.java

@@ -1,14 +1,28 @@
 package com.ticketing.server.user.application.response;
 
+import com.ticketing.server.global.redis.RefreshToken;
+import lombok.AccessLevel;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
 @Getter
-@AllArgsConstructor
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
 public class LogoutResponse {
 
-	private final Long refreshTokenId;
-	private final String email;
-	private final String refreshToken;
+	private Long refreshTokenId;
+	private String email;
+	private String refreshToken;
+
+	private LogoutResponse(String email) {
+		this.email = email;
+	}
+
+	public static LogoutResponse from(String email) {
+		return new LogoutResponse(email);
+	}
+
+	public static LogoutResponse from(RefreshToken refreshToken) {
+		return new LogoutResponse(refreshToken.getId(), refreshToken.getEmail(), refreshToken.getToken());
+	}
 
 }

server/src/main/java/com/ticketing/server/user/application/response/PaymentsResponse.java

@@ -1,15 +0,0 @@
-package com.ticketing.server.user.application.response;
-
-import com.ticketing.server.payment.service.dto.SimplePaymentDTO;
-import java.util.List;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class PaymentsResponse {
-
-	private final String email;
-	private final List<SimplePaymentDTO> payments;
-
-}

server/src/main/java/com/ticketing/server/user/application/response/SignUpResponse.java

@@ -1,13 +1,20 @@
 package com.ticketing.server.user.application.response;
 
+import com.ticketing.server.user.domain.User;
+import lombok.AccessLevel;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
 @Getter
-@AllArgsConstructor
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
 public class SignUpResponse {
 
-	private final String name;
-	private final String email;
+	private String name;
+
+	private String email;
+
+	public static SignUpResponse from(User user) {
+		return new SignUpResponse(user.getName(), user.getEmail());
+	}
 
 }

server/src/main/java/com/ticketing/server/user/application/response/SimplePaymentDetailsResponse.java

@@ -0,0 +1,21 @@
+package com.ticketing.server.user.application.response;
+
+import com.ticketing.server.payment.service.dto.SimplePaymentDto;
+import com.ticketing.server.user.api.dto.response.SimplePaymentsResponse;
+import java.util.List;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class SimplePaymentDetailsResponse {
+
+	private String email;
+	private List<SimplePaymentDto> payments;
+
+	public static SimplePaymentDetailsResponse of(String email, SimplePaymentsResponse paymentsResponse) {
+		return new SimplePaymentDetailsResponse(email, paymentsResponse.getPayments());
+	}
+
+}

server/src/main/java/com/ticketing/server/user/application/response/TokenDto.java

@@ -0,0 +1,20 @@
+package com.ticketing.server.user.application.response;
+
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class TokenDto {
+
+	private final String accessToken;
+	private final String refreshToken;
+	private final String tokenType;
+	private final long expiresIn;
+
+	public static TokenDto of(String accessToken, String refreshToken, String tokenType, long expiresIn) {
+		return new TokenDto(accessToken, refreshToken, tokenType, expiresIn);
+	}
+
+}

server/src/main/java/com/ticketing/server/user/application/response/TokenResponse.java

@@ -1,15 +0,0 @@
-package com.ticketing.server.user.application.response;
-
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class TokenResponse {
-
-	private final String accessToken;
-	private final String refreshToken;
-	private final String tokenType;
-	private final long expiresIn;
-
-}

server/src/main/java/com/ticketing/server/user/application/response/UserChangePasswordResponse.java

@@ -1,15 +1,20 @@
 package com.ticketing.server.user.application.response;
 
-import java.time.LocalDateTime;
+import com.ticketing.server.user.domain.User;
+import lombok.AccessLevel;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
 @Getter
-@AllArgsConstructor
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
 public class UserChangePasswordResponse {
 
-	private final String name;
-	private final String email;
-	private final LocalDateTime updatedAt;
+	private String name;
+
+	private String email;
+
+	public static UserChangePasswordResponse from(User user) {
+		return new UserChangePasswordResponse(user.getName(), user.getEmail());
+	}
 
 }

server/src/main/java/com/ticketing/server/user/application/response/UserDeleteResponse.java

@@ -1,15 +1,20 @@
 package com.ticketing.server.user.application.response;
 
-import java.time.LocalDateTime;
+import com.ticketing.server.user.domain.User;
+import lombok.AccessLevel;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
 @Getter
-@AllArgsConstructor
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
 public class UserDeleteResponse {
 
-	private final String name;
-	private final String email;
-	private final LocalDateTime deletedAt;
+	private String name;
+
+	private String email;
+
+	public static UserDeleteResponse from(User user) {
+		return new UserDeleteResponse(user.getName(), user.getEmail());
+	}
 
 }

server/src/main/java/com/ticketing/server/user/application/response/UserDetailResponse.java

@@ -1,8 +1,7 @@
 package com.ticketing.server.user.application.response;
 
+import com.ticketing.server.user.domain.User;
 import com.ticketing.server.user.domain.UserGrade;
-import com.ticketing.server.user.service.dto.UserDetailDTO;
-import lombok.AccessLevel;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
@@ -10,9 +9,13 @@ import lombok.Getter;
 @AllArgsConstructor
 public class UserDetailResponse {
 
-	private final String name;
-	private final String email;
-	private final UserGrade grade;
-	private final String phone;
+	private String name;
+	private String email;
+	private UserGrade grade;
+	private String phone;
+
+	public static UserDetailResponse from(User user) {
+		return new UserDetailResponse(user.getName(), user.getEmail(), user.getGrade(), user.getPhone());
+	}
 
 }

server/src/main/java/com/ticketing/server/user/domain/ChangeGradeDTO.java

@@ -1,19 +0,0 @@
-package com.ticketing.server.user.domain;
-
-import com.ticketing.server.user.application.UserChangeGradeResponse;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class ChangeGradeDTO {
-
-	private final String email;
-	private final UserGrade beforeGrade;
-	private final UserGrade afterGrade;
-
-	public UserChangeGradeResponse toResponse() {
-		return new UserChangeGradeResponse(email, beforeGrade, afterGrade);
-	}
-
-}

server/src/main/java/com/ticketing/server/user/domain/SequenceGenerator.java

@@ -1,9 +0,0 @@
-package com.ticketing.server.user.domain;
-
-public interface SequenceGenerator {
-
-	Long generateId();
-
-	long[] parse(long id);
-
-}

server/src/main/java/com/ticketing/server/user/domain/Snowflake.java

@@ -1,118 +0,0 @@
-package com.ticketing.server.user.domain;
-
-import java.net.NetworkInterface;
-import java.security.SecureRandom;
-import java.time.Instant;
-import java.util.Enumeration;
-import org.springframework.stereotype.Component;
-
-/**
- * Twitter Snowflake Custom.
- * https://github.com/callicoder/java-snowflake
- */
-@Component
-public class Snowflake implements SequenceGenerator {
-
-	private static final int EPOCH_BITS = 41;
-	private static final int NODE_ID_BITS = 10;
-	private static final int SEQUENCE_BITS = 12;
-
-	private static final long MAX_NODE_ID = (1L << NODE_ID_BITS) - 1;
-	private static final long MAX_SEQUENCE = (1L << SEQUENCE_BITS) - 1;
-
-	// Custom Epoch (January 1, 2015 Midnight UTC = 2015-01-01T00:00:00Z)
-	private static final long DEFAULT_CUSTOM_EPOCH = 1420070400000L;
-
-	private final long nodeId;
-	private final long customEpoch;
-
-	private volatile long lastTimestamp = -1L;
-	private volatile long sequence = 0L;
-
-	// Let Snowflake generate a nodeId
-	public Snowflake() {
-		this.nodeId = createNodeId();
-		this.customEpoch = DEFAULT_CUSTOM_EPOCH;
-	}
-
-	@Override
-	public Long generateId() {
-		return nextId();
-	}
-
-	private synchronized long nextId() {
-		long currentTimestamp = timestamp();
-
-		if(currentTimestamp < lastTimestamp) {
-			throw new IllegalStateException("Invalid System Clock!");
-		}
-
-		if (currentTimestamp == lastTimestamp) {
-			sequence = (sequence + 1) & MAX_SEQUENCE;
-			if(sequence == 0) {
-				// 동일 밀리초 시퀀스가 소진됐을 경우 대기.
-				currentTimestamp = waitNextMillis(currentTimestamp);
-			}
-		} else {
-			// 다음 밀리초 시퀀스 초기화.
-			sequence = 0;
-		}
-
-		lastTimestamp = currentTimestamp;
-		return currentTimestamp << (NODE_ID_BITS + SEQUENCE_BITS)
-			| (nodeId << SEQUENCE_BITS)
-			| sequence;
-	}
-
-	public long[] parse(long id) {
-		long maskNodeId = ((1L << NODE_ID_BITS) - 1) << SEQUENCE_BITS;
-		long maskSequence = (1L << SEQUENCE_BITS) - 1;
-
-		long timestamp = (id >> (NODE_ID_BITS + SEQUENCE_BITS)) + customEpoch;
-		long nodeId = (id & maskNodeId) >> SEQUENCE_BITS;
-		long sequence = id & maskSequence;
-
-		return new long[]{timestamp, nodeId, sequence};
-	}
-
-	private long timestamp() {
-		return Instant.now().toEpochMilli() - customEpoch;
-	}
-
-	private long waitNextMillis(long currentTimestamp) {
-		while (currentTimestamp == lastTimestamp) {
-			currentTimestamp = timestamp();
-		}
-		return currentTimestamp;
-	}
-
-	private long createNodeId() {
-		long nodeId;
-		try {
-			StringBuilder sb = new StringBuilder();
-			Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
-			while (networkInterfaces.hasMoreElements()) {
-				NetworkInterface networkInterface = networkInterfaces.nextElement();
-				byte[] mac = networkInterface.getHardwareAddress();
-				if (mac != null) {
-					for(byte macPort: mac) {
-						sb.append(String.format("%02X", macPort));
-					}
-				}
-			}
-			nodeId = sb.toString().hashCode();
-		} catch (Exception ex) {
-			nodeId = (new SecureRandom().nextInt());
-		}
-		nodeId = nodeId & MAX_NODE_ID;
-		return nodeId;
-	}
-
-	@Override
-	public String toString() {
-		return "Snowflake Settings [EPOCH_BITS=" + EPOCH_BITS + ", NODE_ID_BITS=" + NODE_ID_BITS
-			+ ", SEQUENCE_BITS=" + SEQUENCE_BITS + ", CUSTOM_EPOCH=" + customEpoch
-			+ ", NodeId=" + nodeId + "]";
-	}
-
-}

server/src/main/java/com/ticketing/server/user/domain/User.java

@@ -14,54 +14,42 @@ import javax.persistence.Enumerated;
 import javax.validation.constraints.Email;
 import javax.validation.constraints.NotEmpty;
 import javax.validation.constraints.NotNull;
-import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
 @Entity
 @Getter
-@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@NoArgsConstructor
 public class User extends AbstractEntity {
 
-	@Column(name = "alternate_key", unique = true, nullable = false)
-	@NotNull(message = "{validation.not.null.alternate.key}")
-	private Long alternateId;
-
-	@Column(name = "name", nullable = false)
+	@Column(name = "name")
 	@NotEmpty(message = "{validation.not.empty.name}")
 	private String name;
 
-	@Column(name = "email", unique = true, nullable = false)
+	@Column(name = "email")
 	@NotEmpty(message = "{validation.not.empty.email}")
 	@Email(message = "{validation.email}")
 	private String email;
 
-	@Column(name = "password", nullable = false)
+	@Column(name = "password")
 	@NotEmpty(message = "{validation.not.empty.password}")
 	private String password;
 
-	@Column(name = "grade", nullable = false)
-	@NotNull(message = "{validation.not.null.grade}")
+	@Column(name = "grade")
+	@NotNull(message = "{validation.not.empty.grade}")
 	@Enumerated(value = EnumType.STRING)
-	private UserGrade grade = UserGrade.USER;
+	private UserGrade grade = UserGrade.GUEST;
 
-	@Column(name = "phone", nullable = false)
+	@Column(name = "phone")
 	@NotEmpty(message = "{validation.not.empty.phone}")
 	@Phone
 	private String phone;
 
-	public User(Long alternateId, String name, String email, String password, UserGrade grade, String phone) {
-		this.alternateId = alternateId;
-		this.name = name;
-		this.email = email;
-		this.password = password;
-		this.grade = grade;
-		this.phone = phone;
-	}
+	private boolean isDeleted = false;
 
-	User(Long id, Long alternateId, String name, String email, String password, UserGrade grade, String phone) {
-		this.id = id;
-		this.alternateId = alternateId;
+	private LocalDateTime deletedAt;
+
+	public User(String name, String email, String password, UserGrade grade, String phone) {
 		this.name = name;
 		this.email = email;
 		this.password = password;
@@ -70,12 +58,13 @@ public class User extends AbstractEntity {
 	}
 
 	public User delete(DeleteUserDTO deleteUser) {
-		if (deletedAt != null) {
+		if (isDeleted) {
 			throw ErrorCode.throwDeletedEmail();
 		}
 
 		checkPassword(deleteUser);
 
+		isDeleted = true;
 		deletedAt = LocalDateTime.now();
 		return this;
 	}
@@ -93,14 +82,4 @@ public class User extends AbstractEntity {
 		}
 	}
 
-	public ChangeGradeDTO changeGrade(UserGrade afterGrade) {
-		if (grade.equals(afterGrade)) {
-			throw ErrorCode.throwUnableChangeGrade();
-		}
-		final UserGrade beforeGrade = this.grade;
-
-		this.grade = afterGrade;
-		return new ChangeGradeDTO(email, beforeGrade, afterGrade);
-	}
-
 }

server/src/main/java/com/ticketing/server/user/domain/UserGrade.java

@@ -6,7 +6,7 @@ import lombok.RequiredArgsConstructor;
 public enum UserGrade {
 	ADMIN(ROLES.ADMIN, null),
 	STAFF(ROLES.STAFF, ROLES.ADMIN),
-	USER(ROLES.USER, ROLES.STAFF);
+	GUEST(ROLES.GUEST, ROLES.STAFF);
 
 	private final String roleName;
 	private final String parentName;
@@ -15,7 +15,7 @@ public enum UserGrade {
 
 		public static final String ADMIN = "ROLE_ADMIN";
 		public static final String STAFF = "ROLE_STAFF";
-		public static final String USER = "ROLE_USER";
+		public static final String GUEST = "ROLE_GUEST";
 
 		private ROLES() {
 		}

server/src/main/java/com/ticketing/server/user/domain/repository/UserRepository.java

@@ -10,6 +10,6 @@ public interface UserRepository extends JpaRepository<User, Long> {
 
 	Optional<User> findByEmail(String email);
 
-	Optional<User> findByEmailAndDeletedAtNull(String email);
+	Optional<User> findByEmailAndIsDeletedFalse(String email);
 
 }

server/src/main/java/com/ticketing/server/user/service/AuthenticationServiceImpl.java

@@ -5,8 +5,8 @@ import com.ticketing.server.global.redis.RefreshRedisRepository;
 import com.ticketing.server.global.redis.RefreshToken;
 import com.ticketing.server.global.security.jwt.JwtProperties;
 import com.ticketing.server.global.security.jwt.JwtProvider;
-import com.ticketing.server.user.service.dto.TokenDTO;
-import com.ticketing.server.user.service.dto.DeleteRefreshTokenDTO;
+import com.ticketing.server.user.application.response.LogoutResponse;
+import com.ticketing.server.user.application.response.TokenDto;
 import com.ticketing.server.user.service.interfaces.AuthenticationService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
@@ -28,14 +28,14 @@ public class AuthenticationServiceImpl implements AuthenticationService {
 
 	@Override
 	@Transactional
-	public TokenDTO generateTokenDto(UsernamePasswordAuthenticationToken authenticationToken) {
+	public TokenDto generateTokenDto(UsernamePasswordAuthenticationToken authenticationToken) {
 		// 회원인증
 		Authentication authentication = authenticationManagerBuilder.getObject().authenticate(authenticationToken);
 
 		String email = authenticationToken.getName();
 
 		// 토큰 발급
-		TokenDTO tokenDto = jwtProvider.generateTokenDto(authentication);
+		TokenDto tokenDto = jwtProvider.generateTokenDto(authentication);
 
 		// refresh 토큰이 있으면 수정, 없으면 생성
 		refreshRedisRepository.findByEmail(email)
@@ -49,7 +49,7 @@ public class AuthenticationServiceImpl implements AuthenticationService {
 
 	@Override
 	@Transactional
-	public TokenDTO reissueTokenDto(String bearerRefreshToken) {
+	public TokenDto reissueTokenDto(String bearerRefreshToken) {
 		String refreshToken = resolveToken(bearerRefreshToken);
 
 		// 토큰 검증
@@ -67,7 +67,7 @@ public class AuthenticationServiceImpl implements AuthenticationService {
 		}
 
 		// 토큰 발급
-		TokenDTO tokenDto = jwtProvider.generateTokenDto(authentication);
+		TokenDto tokenDto = jwtProvider.generateTokenDto(authentication);
 
 		// 토큰 최신화
 		findTokenEntity.changeToken(tokenDto.getRefreshToken());
@@ -78,14 +78,12 @@ public class AuthenticationServiceImpl implements AuthenticationService {
 
 	@Override
 	@Transactional
-	public DeleteRefreshTokenDTO deleteRefreshToken(String email) {
+	public LogoutResponse deleteRefreshToken(String email) {
 		return refreshRedisRepository.findByEmail(email)
 			.map(tokenDto -> {
 				refreshRedisRepository.delete(tokenDto);
-				return new DeleteRefreshTokenDTO(tokenDto);
-			}).orElseGet(
-				() -> new DeleteRefreshTokenDTO(email)
-			);
+				return LogoutResponse.from(tokenDto);
+			}).orElseGet(() -> LogoutResponse.from(email));
 	}
 
 	private String resolveToken(String bearerToken) {

server/src/main/java/com/ticketing/server/user/service/CustomUserDetailsService.java

@@ -19,7 +19,7 @@ public class CustomUserDetailsService implements UserDetailsService {
 
 	@Override
 	public UserDetails loadUserByUsername(String email) throws UsernameNotFoundException {
-		return userRepository.findByEmailAndDeletedAtNull(email)
+		return userRepository.findByEmailAndIsDeletedFalse(email)
 			.map(this::createUserDetails)
 			.orElseThrow(ErrorCode::throwEmailNotFound);
 	}
@@ -33,5 +33,4 @@ public class CustomUserDetailsService implements UserDetailsService {
 			, Collections.singleton(grantedAuthority)
 		);
 	}
-
 }

server/src/main/java/com/ticketing/server/user/service/UserApisServiceImpl.java

@@ -1,34 +0,0 @@
-package com.ticketing.server.user.service;
-
-import com.ticketing.server.payment.application.response.SimplePaymentsResponse;
-import com.ticketing.server.user.api.PaymentClient;
-import com.ticketing.server.user.domain.User;
-import com.ticketing.server.user.service.dto.PaymentsDTO;
-import com.ticketing.server.user.service.interfaces.UserApisService;
-import com.ticketing.server.user.service.interfaces.UserService;
-import javax.validation.constraints.NotNull;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-import org.springframework.validation.annotation.Validated;
-
-@Service
-@RequiredArgsConstructor
-@Transactional(readOnly = true)
-@Validated
-@Slf4j
-public class UserApisServiceImpl implements UserApisService {
-
-	private final PaymentClient paymentClient;
-	private final UserService userService;
-
-	@Override
-	public PaymentsDTO findPaymentsByEmail(@NotNull String email) {
-		User user = userService.findNotDeletedUserByEmail(email);
-		SimplePaymentsResponse simplePayments = paymentClient.getPayments(user.getAlternateId());
-
-		return new PaymentsDTO(user, simplePayments);
-	}
-
-}

server/src/main/java/com/ticketing/server/user/service/UserServiceImpl.java

@@ -1,22 +1,18 @@
 package com.ticketing.server.user.service;
 
 import com.ticketing.server.global.exception.ErrorCode;
-import com.ticketing.server.user.domain.ChangeGradeDTO;
-import com.ticketing.server.user.domain.SequenceGenerator;
+import com.ticketing.server.user.api.PaymentClient;
+import com.ticketing.server.user.api.dto.request.SimplePaymentsRequest;
+import com.ticketing.server.user.api.dto.response.SimplePaymentsResponse;
+import com.ticketing.server.user.application.response.SimplePaymentDetailsResponse;
 import com.ticketing.server.user.domain.User;
-import com.ticketing.server.user.domain.UserGrade;
 import com.ticketing.server.user.domain.repository.UserRepository;
 import com.ticketing.server.user.service.dto.ChangePasswordDTO;
-import com.ticketing.server.user.service.dto.ChangedPasswordUserDTO;
-import com.ticketing.server.user.service.dto.CreatedUserDTO;
 import com.ticketing.server.user.service.dto.DeleteUserDTO;
-import com.ticketing.server.user.service.dto.DeletedUserDTO;
 import com.ticketing.server.user.service.dto.SignUpDTO;
-import com.ticketing.server.user.service.dto.UserDetailDTO;
 import com.ticketing.server.user.service.interfaces.UserService;
 import java.util.Optional;
 import javax.validation.Valid;
-import javax.validation.constraints.NotNull;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
@@ -31,15 +27,14 @@ import org.springframework.validation.annotation.Validated;
 public class UserServiceImpl implements UserService {
 
 	private final UserRepository userRepository;
-	private final SequenceGenerator sequenceGenerator;
+	private final PaymentClient paymentClient;
 
 	@Override
 	@Transactional
-	public CreatedUserDTO register(@Valid SignUpDTO signUpDto) {
-		Optional<User> optionalUser = userRepository.findByEmail(signUpDto.getEmail());
-		if (optionalUser.isEmpty()) {
-			User user = userRepository.save(signUpDto.toUser(sequenceGenerator.generateId()));
-			return new CreatedUserDTO(user);
+	public User register(@Valid SignUpDTO signUpDto) {
+		Optional<User> user = userRepository.findByEmail(signUpDto.getEmail());
+		if (user.isEmpty()) {
+			return userRepository.save(signUpDto.toUser());
 		}
 
 		throw ErrorCode.throwDuplicateEmail();
@@ -47,40 +42,34 @@ public class UserServiceImpl implements UserService {
 
 	@Override
 	@Transactional
-	public DeletedUserDTO delete(@Valid DeleteUserDTO deleteUserDto) {
-		User user = findNotDeletedUserByEmail(deleteUserDto.getEmail())
-			.delete(deleteUserDto);
-
-		return new DeletedUserDTO(user);
+	public User delete(@Valid DeleteUserDTO deleteUserDto) {
+		User user = findNotDeletedUserByEmail(deleteUserDto.getEmail());
+		return user.delete(deleteUserDto);
 	}
 
 	@Override
 	@Transactional
-	public ChangedPasswordUserDTO changePassword(@Valid ChangePasswordDTO changePasswordDto) {
-		User user = findNotDeletedUserByEmail(changePasswordDto.getEmail())
-			.changePassword(changePasswordDto);
-
-		return new ChangedPasswordUserDTO(user);
+	public User changePassword(@Valid ChangePasswordDTO changePasswordDto) {
+		User user = findNotDeletedUserByEmail(changePasswordDto.getEmail());
+		return user.changePassword(changePasswordDto);
 	}
 
 	@Override
-	@Transactional
-	public ChangeGradeDTO changeGrade(@NotNull String email, @NotNull UserGrade grade) {
-		User user = findNotDeletedUserByEmail(email);
-		return user.changeGrade(grade);
-	}
-
-	@Override
-	public UserDetailDTO findDetailByEmail(@NotNull String email) {
-		User user = userRepository.findByEmail(email)
+	public User findByEmail(String email) {
+		return userRepository.findByEmail(email)
 			.orElseThrow(ErrorCode::throwEmailNotFound);
-
-		return new UserDetailDTO(user);
 	}
 
 	@Override
-	public User findNotDeletedUserByEmail(@NotNull String email) {
-		return userRepository.findByEmailAndDeletedAtNull(email)
+	public SimplePaymentDetailsResponse findSimplePaymentDetails(String email) {
+		User user = findNotDeletedUserByEmail(email);
+		SimplePaymentsResponse simplePayments = paymentClient.getSimplePayments(SimplePaymentsRequest.from(user));
+
+		return SimplePaymentDetailsResponse.of(email, simplePayments);
+	}
+
+	private User findNotDeletedUserByEmail(String email) {
+		return userRepository.findByEmailAndIsDeletedFalse(email)
 			.orElseThrow(ErrorCode::throwEmailNotFound);
 	}
 

server/src/main/java/com/ticketing/server/user/service/dto/ChangePasswordDTO.java

@@ -2,23 +2,28 @@ package com.ticketing.server.user.service.dto;
 
 import javax.validation.constraints.Email;
 import javax.validation.constraints.NotEmpty;
-import lombok.AllArgsConstructor;
 import org.springframework.security.crypto.password.PasswordEncoder;
 
-@AllArgsConstructor
 public class ChangePasswordDTO implements PasswordMatches {
 
 	@NotEmpty(message = "{validation.not.empty.email}")
 	@Email(message = "{validation.email}")
-	private final String email;
+	private String email;
 
 	@NotEmpty(message = "{validation.not.empty.oldpassword}")
-	private final String oldPassword;
+	private String oldPassword;
 
 	@NotEmpty(message = "{validation.not.empty.newpassword}")
-	private final String newPassword;
+	private String newPassword;
 
-	private final PasswordEncoder passwordEncoder;
+	private PasswordEncoder passwordEncoder;
+
+	public ChangePasswordDTO(String email, String oldPassword, String newPassword, PasswordEncoder passwordEncoder) {
+		this.email = email;
+		this.oldPassword = oldPassword;
+		this.newPassword = newPassword;
+		this.passwordEncoder = passwordEncoder;
+	}
 
 	public String getEmail() {
 		return email;

server/src/main/java/com/ticketing/server/user/service/dto/ChangedPasswordUserDTO.java

@@ -1,24 +0,0 @@
-package com.ticketing.server.user.service.dto;
-
-import com.ticketing.server.user.application.response.UserChangePasswordResponse;
-import com.ticketing.server.user.domain.User;
-import java.time.LocalDateTime;
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
-public class ChangedPasswordUserDTO {
-
-	private final String name;
-	private final String email;
-	private final LocalDateTime updatedAt;
-
-	public ChangedPasswordUserDTO(User user) {
-		this(user.getName(), user.getEmail(), user.getUpdatedAt());
-	}
-
-	public UserChangePasswordResponse toResponse() {
-		return new UserChangePasswordResponse(name, email, updatedAt);
-	}
-
-}

server/src/main/java/com/ticketing/server/user/service/dto/CreatedUserDTO.java

@@ -1,25 +0,0 @@
-package com.ticketing.server.user.service.dto;
-
-import com.ticketing.server.user.application.response.SignUpResponse;
-import com.ticketing.server.user.domain.User;
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
-public class CreatedUserDTO {
-
-	private final String name;
-	private final String email;
-
-	public CreatedUserDTO(User user) {
-		this(
-			user.getName(),
-			user.getEmail()
-		);
-	}
-
-	public SignUpResponse toResponse() {
-		return new SignUpResponse(name, email);
-	}
-
-}

server/src/main/java/com/ticketing/server/user/service/dto/DeleteRefreshTokenDTO.java

@@ -1,26 +0,0 @@
-package com.ticketing.server.user.service.dto;
-
-import com.ticketing.server.global.redis.RefreshToken;
-import com.ticketing.server.user.application.response.LogoutResponse;
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
-public class DeleteRefreshTokenDTO {
-
-	private final Long refreshTokenId;
-	private final String email;
-	private final String refreshToken;
-
-	public DeleteRefreshTokenDTO(String email) {
-		this(null, email, null);
-	}
-
-	public DeleteRefreshTokenDTO(RefreshToken refreshToken) {
-		this(refreshToken.getId(), refreshToken.getEmail(), refreshToken.getToken());
-	}
-
-	public LogoutResponse toResponse() {
-		return new LogoutResponse(refreshTokenId, email, refreshToken);
-	}
-}

server/src/main/java/com/ticketing/server/user/service/dto/DeleteUserDTO.java

@@ -2,20 +2,24 @@ package com.ticketing.server.user.service.dto;
 
 import javax.validation.constraints.Email;
 import javax.validation.constraints.NotEmpty;
-import lombok.AllArgsConstructor;
 import org.springframework.security.crypto.password.PasswordEncoder;
 
-@AllArgsConstructor
 public class DeleteUserDTO implements PasswordMatches {
 
 	@NotEmpty(message = "{validation.not.empty.email}")
 	@Email(message = "{validation.email}")
-	private final String email;
+	private String email;
 
 	@NotEmpty(message = "{validation.not.empty.password}")
-	private final String inputPassword;
+	private String inputPassword;
 
-	private final PasswordEncoder passwordEncoder;
+	private PasswordEncoder passwordEncoder;
+
+	public DeleteUserDTO(String email, String inputPassword, PasswordEncoder passwordEncoder) {
+		this.email = email;
+		this.inputPassword = inputPassword;
+		this.passwordEncoder = passwordEncoder;
+	}
 
 	@Override
 	public boolean passwordMatches(String password) {

server/src/main/java/com/ticketing/server/user/service/dto/DeletedUserDTO.java

@@ -1,26 +0,0 @@
-package com.ticketing.server.user.service.dto;
-
-import com.ticketing.server.user.application.response.UserDeleteResponse;
-import com.ticketing.server.user.domain.User;
-import java.time.LocalDateTime;
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
-public class DeletedUserDTO {
-
-	private final String name;
-	private final String email;
-	private final LocalDateTime deletedAt;
-
-	public DeletedUserDTO(User user) {
-		this(user.getName(), user.getEmail(), user.getDeletedAt());
-	}
-
-	public UserDeleteResponse toResponse() {
-		return new UserDeleteResponse(name, email, deletedAt);
-	}
-
-}

server/src/main/java/com/ticketing/server/user/service/dto/PaymentsDTO.java

@@ -1,27 +0,0 @@
-package com.ticketing.server.user.service.dto;
-
-import com.ticketing.server.payment.application.response.SimplePaymentsResponse;
-import com.ticketing.server.payment.service.dto.SimplePaymentDTO;
-import com.ticketing.server.user.application.response.PaymentsResponse;
-import com.ticketing.server.user.domain.User;
-import java.util.List;
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
-public class PaymentsDTO {
-
-	private final String email;
-	private final List<SimplePaymentDTO> payments;
-
-	public PaymentsDTO(User user, SimplePaymentsResponse simplePayments) {
-		this(user.getEmail(), simplePayments.getPayments());
-	}
-
-	public PaymentsResponse toResponse() {
-		return new PaymentsResponse(email, payments);
-	}
-
-}

server/src/main/java/com/ticketing/server/user/service/dto/SignUpDTO.java

@@ -5,29 +5,34 @@ import com.ticketing.server.user.domain.User;
 import com.ticketing.server.user.domain.UserGrade;
 import javax.validation.constraints.Email;
 import javax.validation.constraints.NotEmpty;
-import lombok.AllArgsConstructor;
 import lombok.Getter;
 
 @Getter
-@AllArgsConstructor
 public class SignUpDTO {
 
 	@NotEmpty(message = "{validation.not.empty.name}")
-	private final String name;
+	private String name;
 
 	@NotEmpty(message = "{validation.not.empty.email}")
 	@Email(message = "{validation.email}")
-	private final String email;
+	private String email;
 
 	@NotEmpty(message = "{validation.not.empty.password}")
-	private final String password;
+	private String password;
 
 	@NotEmpty(message = "{validation.not.empty.phone}")
 	@Phone
-	private final String phone;
+	private String phone;
 
-	public User toUser(long alternateId) {
-		return new User(alternateId, this.name, this.email, password, UserGrade.USER, this.phone);
+	public SignUpDTO(String name, String email, String password, String phone) {
+		this.name = name;
+		this.email = email;
+		this.password = password;
+		this.phone = phone;
+	}
+
+	public User toUser() {
+		return new User(this.name, this.email, password, UserGrade.GUEST, this.phone);
 	}
 
 	@Override

server/src/main/java/com/ticketing/server/user/service/dto/TokenDTO.java

@@ -1,20 +0,0 @@
-package com.ticketing.server.user.service.dto;
-
-import com.ticketing.server.user.application.response.TokenResponse;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class TokenDTO {
-
-	private final String accessToken;
-	private final String refreshToken;
-	private final String tokenType;
-	private final long expiresIn;
-
-	public TokenResponse toResponse() {
-		return new TokenResponse(accessToken, refreshToken, tokenType, expiresIn);
-	}
-
-}

server/src/main/java/com/ticketing/server/user/service/dto/UserDetailDTO.java

@@ -1,34 +0,0 @@
-package com.ticketing.server.user.service.dto;
-
-import com.ticketing.server.user.application.response.UserDetailResponse;
-import com.ticketing.server.user.domain.User;
-import com.ticketing.server.user.domain.UserGrade;
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor(access = AccessLevel.PRIVATE)
-public class UserDetailDTO {
-
-	private final Long alternateId;
-	private final String name;
-	private final String email;
-	private final UserGrade grade;
-	private final String phone;
-
-	public UserDetailDTO(User user) {
-		this(
-			user.getAlternateId(),
-			user.getName(),
-			user.getEmail(),
-			user.getGrade(),
-			user.getPhone()
-		);
-	}
-
-	public UserDetailResponse toResponse() {
-		return new UserDetailResponse(name, email, grade, phone);
-	}
-
-}

server/src/main/java/com/ticketing/server/user/service/interfaces/AuthenticationService.java

@@ -1,15 +1,15 @@
 package com.ticketing.server.user.service.interfaces;
 
-import com.ticketing.server.user.service.dto.TokenDTO;
-import com.ticketing.server.user.service.dto.DeleteRefreshTokenDTO;
+import com.ticketing.server.user.application.response.LogoutResponse;
+import com.ticketing.server.user.application.response.TokenDto;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
 
 public interface AuthenticationService {
 
-	TokenDTO generateTokenDto(UsernamePasswordAuthenticationToken usernamePasswordAuthenticationToken);
+	TokenDto generateTokenDto(UsernamePasswordAuthenticationToken usernamePasswordAuthenticationToken);
 
-	TokenDTO reissueTokenDto(String bearerRefreshToken);
+	TokenDto reissueTokenDto(String bearerRefreshToken);
 
-	DeleteRefreshTokenDTO deleteRefreshToken(String email);
+	LogoutResponse deleteRefreshToken(String email);
 
 }

server/src/main/java/com/ticketing/server/user/service/interfaces/UserApisService.java

@@ -1,10 +0,0 @@
-package com.ticketing.server.user.service.interfaces;
-
-import com.ticketing.server.user.service.dto.PaymentsDTO;
-import javax.validation.constraints.NotNull;
-
-public interface UserApisService {
-
-	PaymentsDTO findPaymentsByEmail(@NotNull String email);
-
-}

server/src/main/java/com/ticketing/server/user/service/interfaces/UserService.java

@@ -1,30 +1,22 @@
 package com.ticketing.server.user.service.interfaces;
 
-import com.ticketing.server.user.domain.ChangeGradeDTO;
+import com.ticketing.server.user.application.response.SimplePaymentDetailsResponse;
 import com.ticketing.server.user.domain.User;
-import com.ticketing.server.user.domain.UserGrade;
-import com.ticketing.server.user.service.dto.ChangedPasswordUserDTO;
-import com.ticketing.server.user.service.dto.DeletedUserDTO;
 import com.ticketing.server.user.service.dto.ChangePasswordDTO;
-import com.ticketing.server.user.service.dto.CreatedUserDTO;
 import com.ticketing.server.user.service.dto.DeleteUserDTO;
 import com.ticketing.server.user.service.dto.SignUpDTO;
-import com.ticketing.server.user.service.dto.UserDetailDTO;
 import javax.validation.Valid;
-import javax.validation.constraints.NotNull;
 
 public interface UserService {
 
-	CreatedUserDTO register(@Valid SignUpDTO signUpDto);
+	User register(@Valid SignUpDTO signUpDto);
 
-	DeletedUserDTO delete(@Valid DeleteUserDTO deleteUserDto);
+	User delete(@Valid DeleteUserDTO deleteUserDto);
 
-	ChangedPasswordUserDTO changePassword(@Valid ChangePasswordDTO changePasswordDto);
+	User changePassword(@Valid ChangePasswordDTO changePasswordDto);
 
-	ChangeGradeDTO changeGrade(@NotNull String email, @NotNull UserGrade grade);
+	User findByEmail(String email);
 
-	UserDetailDTO findDetailByEmail(@NotNull String email);
-
-	User findNotDeletedUserByEmail(@NotNull String email);
+	SimplePaymentDetailsResponse findSimplePaymentDetails(String email);
 
 }

server/src/main/resources/application.yml

@@ -32,7 +32,7 @@ jwt:
   refresh-header: REFRESH_TOKEN
   prefix: Bearer
   secret-key: Zi1sYWItdGlja2V0aW5nLXByb2plY3Qtc3ByaW5nLWJvb3Qtc2VjdXJpdHktand0LXNlY3JldC1rZXktZi1sYWItdGlja2V0aW5nLXByb2plY3Qtc3ByaW5nLWJvb3Qtc2VjdXJpdHktand0LXNlY3JldC1rZXkK
-  access-token-validity-in-seconds: 1800 # 30분
+  access-token-validity-in-seconds: 60 # 1분
   refresh-token-validity-in-seconds: 259200 # 3일
 
 springfox: