[volume-1] 회원가입, 내 정보 조회, 비밀번호 변경 기능 구현

.gitignore

@@ -38,3 +38,6 @@ out/
 
 ### Kotlin ###
 .kotlin
+
+/.claude
+CLAUDE.md

apps/commerce-api/src/main/java/com/loopers/application/service/MemberService.java

@@ -0,0 +1,78 @@
+package com.loopers.application.service;
+
+import com.loopers.application.service.dto.MemberRegisterRequest;
+import com.loopers.application.service.dto.MyMemberInfoResponse;
+import com.loopers.domain.member.Member;
+import com.loopers.domain.member.MemberExceptionMessage;
+import com.loopers.infrastructure.member.MemberRepository;
+import com.loopers.support.error.CoreException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@RequiredArgsConstructor
+public class MemberService {
+
+    private final MemberRepository memberRepository;
+
+    @Transactional
+    public void register(MemberRegisterRequest request) {
+        boolean isLoginIdAlreadyExists = memberRepository.existsByLoginId(request.loginId());
+
+        if (isLoginIdAlreadyExists) {
+            throw new IllegalArgumentException(MemberExceptionMessage.LoginId.DUPLICATE_ID_EXISTS.message());
+        }
+
+        memberRepository.save(Member.register(request.loginId(), request.password(), request.name(), request.birthdate(), request.email()));
+    }
+
+    @Transactional(readOnly = true)
+    public MyMemberInfoResponse getMyInfo(String userId, String password) {
+        // 1. 회원 조회 (없으면 예외 발생 - MemberExceptionMessage.Common.NOT_FOUND 사용)
+        Member member = memberRepository.findByLoginId(userId)
+                .orElseThrow(() -> new IllegalArgumentException(MemberExceptionMessage.ExistsMember.CANNOT_LOGIN.message()));
+
+        // 2. 비밀번호 일치 여부 확인 (도메인 모델의 isSamePassword 활용)
+        if (!member.isSamePassword(password)) {
+            // 비밀번호 불일치 시 예외 발생 (인증 관련 메시지 사용)
+            throw new IllegalArgumentException(MemberExceptionMessage.ExistsMember.CANNOT_LOGIN.message());
+        }
+
+        // 3. DTO 변환 및 이름 마스킹 처리
+        return new MyMemberInfoResponse(
+                member.getLoginId(),
+                maskName(member.getName()), // 마스킹 로직 적용
+                member.getBirthDate(),
+                member.getEmail()
+        );
+    }
+
+    @Transactional
+    public void updatePassword(String userId, String currentPassword, String newPassword) {
+        // 1. 회원 조회
+        Member member = memberRepository.findByLoginId(userId)
+                .orElseThrow(() -> new IllegalArgumentException(MemberExceptionMessage.ExistsMember.CANNOT_LOGIN.message()));
+
+        // 2. 본인 확인 (기존 비밀번호 일치 여부)
+        if (!member.isSamePassword(currentPassword)) {
+            throw new IllegalArgumentException(MemberExceptionMessage.Password.PASSWORD_INCORRECT.message()); // 적절한 메시지로 변경 가능
+        }
+
+        // 4. 도메인 정책 검증 및 수정 (생년월일 포함 여부 등은 도메인 내 로직에서 처리)
+        member.updatePassword(newPassword);
+    }
+
+    /**
+     * 이름의 마지막 글자를 *로 마스킹 처리
+     */
+    private String maskName(String name) {
+        if (name == null || name.isEmpty()) {
+            return "";
+        }
+        if (name.length() == 1) {
+            return "*";
+        }
+        return name.substring(0, name.length() - 1) + "*";
+    }
+}

apps/commerce-api/src/main/java/com/loopers/application/service/dto/MemberRegisterRequest.java

@@ -0,0 +1,15 @@
+package com.loopers.application.service.dto;
+
+import lombok.Builder;
+
+import java.time.LocalDate;
+
+@Builder
+public record MemberRegisterRequest (
+        String loginId,
+        String password,
+        String name,
+        LocalDate birthdate,
+        String email
+) {
+}

apps/commerce-api/src/main/java/com/loopers/application/service/dto/MyMemberInfoResponse.java

@@ -0,0 +1,11 @@
+package com.loopers.application.service.dto;
+
+import java.time.LocalDate;
+
+public record MyMemberInfoResponse(
+        String loginId,
+        String name,
+        LocalDate birthdate,
+        String email
+) {
+}

apps/commerce-api/src/main/java/com/loopers/application/service/dto/PasswordUpdateRequest.java

@@ -0,0 +1,6 @@
+package com.loopers.application.service.dto;
+
+public record PasswordUpdateRequest(
+        String newPassword
+) {
+}

apps/commerce-api/src/main/java/com/loopers/controller/MemberController.java

@@ -0,0 +1,52 @@
+package com.loopers.controller;
+
+import com.loopers.application.service.MemberService;
+import com.loopers.application.service.dto.MemberRegisterRequest;
+import com.loopers.application.service.dto.MyMemberInfoResponse;
+import com.loopers.application.service.dto.PasswordUpdateRequest;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/api/members")
+@RequiredArgsConstructor
+public class MemberController {
+
+    private final MemberService memberService;
+
+    /**
+     * 회원가입
+     */
+    @PostMapping("/register")
+    @ResponseStatus(HttpStatus.CREATED)
+    public void register(@RequestBody MemberRegisterRequest request) {
+        memberService.register(request);
+    }
+
+    /**
+     * 내 정보 조회
+     * 헤더 인증 (ID, PW) 기반
+     */
+    @GetMapping("/me")
+    public MyMemberInfoResponse getMyInfo(
+            @RequestHeader("X-Loopers-LoginId") String loginId,
+            @RequestHeader("X-Loopers-LoginPw") String password
+    ) {
+        return memberService.getMyInfo(loginId, password);
+    }
+
+    /**
+     * 비밀번호 수정
+     * 헤더 인증 (ID, 기존 PW) + 바디 (새 PW)
+     */
+    @PatchMapping("/password")
+    @ResponseStatus(HttpStatus.NO_CONTENT)
+    public void updatePassword(
+            @RequestHeader("X-Loopers-LoginId") String loginId,
+            @RequestHeader("X-Loopers-LoginPw") String currentPassword,
+            @RequestBody PasswordUpdateRequest request
+    ) {
+        memberService.updatePassword(loginId, currentPassword, request.newPassword());
+    }
+}

apps/commerce-api/src/main/java/com/loopers/infrastructure/member/MemberRepository.java

@@ -0,0 +1,13 @@
+package com.loopers.infrastructure.member;
+
+import com.loopers.domain.member.Member;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+
+public interface MemberRepository extends JpaRepository<Member, Long> {
+
+    boolean existsByLoginId(String inputId);
+
+    Optional<Member> findByLoginId(String loginId);
+}

apps/commerce-api/src/main/java/com/loopers/interfaces/api/ApiControllerAdvice.java

@@ -113,6 +113,14 @@ public ResponseEntity<ApiResponse<?>> handle(Throwable e) {
         return failureResponse(ErrorType.INTERNAL_ERROR, null);
     }
 
+    // TODO: 예외처리 변경하는 게 좋을 것 같음
+    @ExceptionHandler(IllegalArgumentException.class)
+    public ResponseEntity<ApiResponse<?>> handleIllegalArgumentException(IllegalArgumentException e) {
+        log.warn("IllegalArgumentException : {}", e.getMessage());
+        return ResponseEntity.status(401)
+                .body(ApiResponse.fail("UNAUTHORIZED", e.getMessage()));
+    }
+
     private String extractMissingParameter(String message) {
         Pattern pattern = Pattern.compile("'(.+?)'");
         Matcher matcher = pattern.matcher(message);