[FEAT] 공유하기 추천인 코드 생성 API 구현

src/main/java/com/neighbors/tohero/application/baseResponse/BaseResponseMessage.java

@@ -53,7 +53,10 @@ public enum BaseResponseMessage {
 
     //news
     뉴스_조회가_성공했습니다("뉴스 조회가 성공했습니다"),
-    뉴스_조회가_실패했습니다("뉴스 조회가 실패했습니다");
+    뉴스_조회가_실패했습니다("뉴스 조회가 실패했습니다"),
+
+    //sharing
+    추천인_코드_생성이_정상실행_되었습니다("추천인 코드 생성이 정상실행 되었습니다");
 
     private final String message;
 

src/main/java/com/neighbors/tohero/application/sharing/dto/GetRecommenderCodeResponse.java

@@ -0,0 +1,6 @@
+package com.neighbors.tohero.application.sharing.dto;
+
+public record GetRecommenderCodeResponse(
+        String recommenderCode
+) {
+}

src/main/java/com/neighbors/tohero/application/sharing/service/SharingService.java

@@ -0,0 +1,50 @@
+package com.neighbors.tohero.application.sharing.service;
+
+import com.neighbors.tohero.application.baseResponse.BaseResponse;
+import com.neighbors.tohero.application.baseResponse.BaseResponseMessage;
+import com.neighbors.tohero.application.baseResponse.BaseResponseStatus;
+import com.neighbors.tohero.application.sharing.dto.GetRecommenderCodeResponse;
+import com.neighbors.tohero.common.jwt.JwtProvider;
+import com.neighbors.tohero.domain.domain.user.model.User;
+import com.neighbors.tohero.domain.domain.user.service.GetUser;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+@RequiredArgsConstructor
+public class SharingService {
+
+    private final GetUser getUser;
+    private final JwtProvider jwtProvider;
+
+    public BaseResponse<GetRecommenderCodeResponse> getRecommenderCode(String userEmail){
+        User user = getUser.getUserByEmail(userEmail);
+
+        String recommenderCode = createRecommenderCode(user);
+
+        return new BaseResponse<>(
+                BaseResponseStatus.OK,
+                BaseResponseMessage.추천인_코드_생성이_정상실행_되었습니다.getMessage(),
+                new GetRecommenderCodeResponse(recommenderCode)
+        );
+    }
+
+    private String createRecommenderCode(User user){
+        String recommenderEmailsDividedBySlash = user.getRecommenders();
+        List<String> recommenderEmails = new java.util.ArrayList<>(List.of(recommenderEmailsDividedBySlash.split("/")));
+        recommenderEmails.add(user.getEmail());
+
+        if (recommenderEmails.size() > 5) {
+            recommenderEmails.remove(0);
+        }
+
+        String recommenderEmailsWithUserEmailDividedBySlash =
+                String.join("/", recommenderEmails)
+                .replaceAll("^/+", "");
+
+        return jwtProvider.createRecommenderCode(user.getEmail(), recommenderEmailsWithUserEmailDividedBySlash);
+    }
+
+}

src/main/java/com/neighbors/tohero/common/jwt/JwtProvider.java

@@ -60,6 +60,25 @@ public AuthTokens createToken(JwtUserDetails jwtUserDetails) {
         return AuthTokens.of(accessToken, refreshToken, JWT_EXPIRED_IN, REFRESH_TOKEN_EXPIRED_IN);
     }
 
+    public String createRecommenderCode(String userEmail, String recommenderEmails){
+        Claims claims = Jwts.claims()
+                .setSubject(userEmail)
+                .setIssuer("ToHero");
+
+        Date now = new Date();
+        claims.put("recommenderEmails", recommenderEmails);
+        claims.put("issueTime", now);
+
+        Date accessTokenExpiredAt = new Date(now.getTime() + JWT_EXPIRED_IN);
+
+        return Jwts.builder()
+                .setClaims(claims)
+                .setIssuedAt(now)
+                .setExpiration(accessTokenExpiredAt)
+                .signWith(SignatureAlgorithm.HS256, JWT_SECRET_KEY)
+                .compact();
+    }
+
     public boolean isExpiredToken(String token) throws JwtInvalidTokenException {
         log.info("[JwtTokenProvider.isExpiredToken] token={}", token);
         try {
@@ -132,6 +151,11 @@ public JwtUserDetails getJwtUserDetails(String token) {
 
     }
 
+    public String getRecommenderEmails(String token) {
+        Claims claims = getBody(token);
+        return claims.get("recommenderEmails").toString();
+    }
+
     public JwtUserDetails getGuestJwtUserDetails(String token) {
         Claims claims = getBody(token);
 

src/main/java/com/neighbors/tohero/domain/domain/user/model/User.java

@@ -14,9 +14,10 @@ public class User {
     private String userName;
     private String email;
     private Role role;
+    private String recommenders;
 
-    public static User of (Long userId, String userName, String email, Role role) {
-        return new User(userId, userName, email, role);
+    public static User of (Long userId, String userName, String email, Role role, String recommenders) {
+        return new User(userId, userName, email, role, recommenders);
     }
 
     public static User toEntity(AuthenticateUserRequest authenticateUserRequest) {
@@ -26,4 +27,9 @@ public static User toEntity(AuthenticateUserRequest authenticateUserRequest) {
                 .role(authenticateUserRequest.role())
                 .build();
     }
+
+    public String getRecommenders() {
+        if(recommenders == null) return "";
+        return recommenders;
+    }
 }

src/main/java/com/neighbors/tohero/infrastructure/entity/UserEntity.java

@@ -26,6 +26,9 @@ public class UserEntity extends BaseEntity {
     @Column(name = "role", nullable = false)
     private Role role;
 
+    @Column(name = "recommenders", nullable = true)
+    private String recommenders;
+
     public UserEntity() {
     }
 
@@ -44,6 +47,11 @@ public static UserEntity returnNewObjectOf(String nickName, String email, Role r
     }
 
     public static UserEntity from(User user) {
-        return new UserEntity(user.getUserId(), user.getUserName(), user.getEmail(), user.getRole());
+        return new UserEntity(user.getUserId(), user.getUserName(), user.getEmail(), user.getRole(),user.getRecommenders());
+    }
+
+    public String getRecommenders() {
+        if(recommenders == null) return "";
+        return recommenders;
     }
 }

src/main/java/com/neighbors/tohero/infrastructure/mapper/UserMapper.java

@@ -24,7 +24,8 @@ public User toDomain(UserEntity userEntity){
                 userEntity.getUserId(),
                 userEntity.getNickName(),
                 userEntity.getEmail(),
-                userEntity.getRole()
+                userEntity.getRole(),
+                userEntity.getRecommenders()
         );
     }
 }

src/main/java/com/neighbors/tohero/presentation/controller/SharingController.java

@@ -0,0 +1,31 @@
+package com.neighbors.tohero.presentation.controller;
+
+import com.neighbors.tohero.application.baseResponse.BaseResponse;
+import com.neighbors.tohero.application.sharing.service.SharingService;
+import com.neighbors.tohero.common.jwt.JwtUserDetails;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/sharing")
+public class SharingController {
+
+    private final SharingService sharingService;
+
+    @Operation(summary = "공유하기 API", description = "공유하기 메시지보낼 때 사용할 추천인 코드를 생성해주는 API입니다.")
+    @GetMapping("/recommenderCode")
+    public ResponseEntity<BaseResponse> getRecommenderCode(
+            @Parameter(hidden=true) @AuthenticationPrincipal JwtUserDetails jwtUserDetail
+    ){
+        return ResponseEntity.ok()
+                .body(sharingService.getRecommenderCode(jwtUserDetail.getEmail()));
+    }
+
+}