Merge pull request #53 from MutsaDemoDay/feat/auth

feat: 사업자등록정보 상태조회 기능 구현

Author: alissa159

src/main/java/backend/stamp/auth/dto/external/NtsStatusData.java

@@ -0,0 +1,46 @@
+package backend.stamp.auth.dto.external;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+public class NtsStatusData {
+    @JsonProperty("b_no")
+    private String businessNumber;
+
+    @JsonProperty("b_stt")
+    private String status;          // 계속사업자, 폐업자, 국세청에 등록되지 않은 사업자등록번호입니다. 등
+
+    @JsonProperty("b_stt_cd")
+    private String statusCode;
+
+    @JsonProperty("tax_type")
+    private String taxType;         // 부가가치세 일반과세자, 국세청에 등록되지 않은 사업자등록번호입니다. 등
+
+    @JsonProperty("tax_type_cd")
+    private String taxTypeCode;
+
+    @JsonProperty("end_dt")
+    private String closedDate;
+
+    @JsonProperty("utcc_yn")
+    private String utccYn;
+
+    @JsonProperty("tax_type_change_dt")
+    private String taxTypeChangeDate;
+
+    @JsonProperty("invoice_apply_dt")
+    private String invoiceApplyDate;
+
+    @JsonProperty("rbf_tax_type")
+    private String previousTaxType;
+
+    @JsonProperty("rbf_tax_type_cd")
+    private String previousTaxTypeCode;
+}

src/main/java/backend/stamp/auth/dto/external/NtsStatusRequest.java

@@ -0,0 +1,18 @@
+package backend.stamp.auth.dto.external;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+import java.util.List;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+public class NtsStatusRequest {
+    @JsonProperty("b_no")
+    private List<String> businessNumbers;
+}

src/main/java/backend/stamp/auth/dto/external/NtsStatusResponse.java

@@ -0,0 +1,26 @@
+package backend.stamp.auth.dto.external;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+import java.util.List;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+public class NtsStatusResponse {
+    @JsonProperty("request_cnt")
+    private int requestCnt;
+
+    @JsonProperty("match_cnt")
+    private int matchCnt;
+
+    @JsonProperty("status_code")
+    private String statusCode;
+
+    private List<NtsStatusData> data;
+}

src/main/java/backend/stamp/auth/service/BusinessStatusClient.java

@@ -0,0 +1,85 @@
+package backend.stamp.auth.service;
+
+import backend.stamp.auth.dto.external.NtsStatusData;
+import backend.stamp.auth.dto.external.NtsStatusRequest;
+import backend.stamp.auth.dto.external.NtsStatusResponse;
+import backend.stamp.global.exception.ApplicationException;
+import backend.stamp.global.exception.ErrorCode;
+import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.RestClientException;
+import org.springframework.web.client.RestTemplate;
+import org.springframework.web.util.UriComponentsBuilder;
+import org.springframework.http.HttpHeaders;
+import java.util.List;
+
+@Service
+@RequiredArgsConstructor
+public class BusinessStatusClient {
+    private final RestTemplate restTemplate;
+
+    @Value("${nts.status.base-url}")
+    private String baseUrl;
+
+    @Value("${nts.status.service-key}")
+    private String serviceKey;
+
+    public NtsStatusData inquireStatus(String rawBusinessNumber) {
+        String bizNo = rawBusinessNumber.replaceAll("[^0-9]", "");
+        if (bizNo.length() != 10) {
+            throw new ApplicationException(ErrorCode.INVALID_BUSINESS_NUMBER);
+        }
+
+        String url = UriComponentsBuilder
+                .fromHttpUrl(baseUrl + "/api/nts-businessman/v1/status")
+                .queryParam("serviceKey", serviceKey)
+                .build(true)
+                .toUriString();
+
+        NtsStatusRequest requestBody = new NtsStatusRequest(List.of(bizNo));
+
+        HttpHeaders headers = new HttpHeaders();
+        headers.setContentType(MediaType.APPLICATION_JSON);
+        headers.setAccept(List.of(MediaType.APPLICATION_JSON));
+
+        HttpEntity<NtsStatusRequest> entity = new HttpEntity<>(requestBody, headers);
+
+        try {
+            ResponseEntity<NtsStatusResponse> response = restTemplate.exchange(
+                    url,
+                    HttpMethod.POST,
+                    entity,
+                    NtsStatusResponse.class
+            );
+
+            NtsStatusResponse body = response.getBody();
+            if (body == null || body.getData() == null || body.getData().isEmpty()) {
+                throw new ApplicationException(ErrorCode.BUSINESS_STATUS_CHECK_FAILED);
+            }
+
+            NtsStatusData data = body.getData().get(0);
+
+            if (isNotRegistered(data)) {
+                throw new ApplicationException(ErrorCode.INVALID_BUSINESS_NUMBER);
+            }
+
+            return data;
+        } catch (RestClientException e) {
+            throw new ApplicationException(ErrorCode.BUSINESS_STATUS_CHECK_FAILED);
+        }
+    }
+
+    private boolean isNotRegistered(NtsStatusData data) {
+        String status = data.getStatus();
+        String taxType = data.getTaxType();
+        String notRegisteredMessage = "국세청에 등록되지 않은 사업자등록번호입니다.";
+
+        return (status != null && status.contains(notRegisteredMessage))
+                || (taxType != null && taxType.contains(notRegisteredMessage));
+    }
+}

src/main/java/backend/stamp/auth/service/EmailService.java

@@ -32,7 +32,7 @@ public void sendVerificationCode(String email) {
         try {
             SimpleMailMessage message = new SimpleMailMessage();
             message.setTo(email);
-            message.setSubject("[STAMP] 이메일 인증번호 안내");
+            message.setSubject("[DANGO] 이메일 인증번호 안내");
             message.setText("인증번호는 " + code + " 입니다.");
             mailSender.send(message);
         } catch (Exception e) {
@@ -64,4 +64,21 @@ public void verifyCodeOrThrow(String email, String inputCode) {
     private String generateCode() {
         return String.format("%06d", new Random().nextInt(1_000_000));
     }
+
+    public void sendBusinessVerifiedMail(String email) {
+        try {
+            SimpleMailMessage message = new SimpleMailMessage();
+            message.setTo(email);
+            message.setSubject("[DANGO] 사업자 등록 인증이 완료되었습니다.");
+            message.setText(
+                    "안녕하세요.\n\n" +
+                            "요청하신 사업자 등록 인증이 정상적으로 완료되었습니다.\n" +
+                            "이제 STAMP에서 매장 정보를 등록하고, 서비스를 이용하실 수 있습니다.\n\n" +
+                            "감사합니다."
+            );
+            mailSender.send(message);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
 }

src/main/java/backend/stamp/auth/service/ManagerSignUpService.java

@@ -1,5 +1,6 @@
 package backend.stamp.auth.service;
 
+import backend.stamp.auth.dto.external.NtsStatusData;
 import backend.stamp.account.entity.Account;
 import backend.stamp.account.entity.UserType;
 import backend.stamp.account.repository.AccountRepository;
@@ -28,6 +29,8 @@ public class ManagerSignUpService {
     private final StoreRepository storeRepository;
     private final PasswordEncoder passwordEncoder;
     private final TokenProvider tokenProvider;
+    private final BusinessStatusClient businessStatusClient;
+    private final EmailService emailService;
 
     public SignUpResponse signUp(ManagerSignUpRequest request) {
 
@@ -41,6 +44,12 @@ public SignUpResponse signUp(ManagerSignUpRequest request) {
             throw new ApplicationException(ErrorCode.DUPLICATE_EMAIL);
         }
 
+        NtsStatusData statusData = businessStatusClient.inquireStatus(request.getBusinessNum());
+
+        if (!"계속사업자".equals(statusData.getStatus())) {
+            throw new ApplicationException(ErrorCode.INVALID_BUSINESS_NUMBER);
+        }
+
         String encodedPassword = passwordEncoder.encode(request.getPassword());
 
         Account newAccount = new Account(
@@ -70,6 +79,7 @@ public SignUpResponse signUp(ManagerSignUpRequest request) {
 
         storeRepository.save(newStore);
 
+        emailService.sendBusinessVerifiedMail(request.getEmail());
 
         String accessToken = tokenProvider.createAccessToken(savedAccount);
         String refreshToken = tokenProvider.createRefreshToken(savedAccount);
@@ -83,5 +93,7 @@ public SignUpResponse signUp(ManagerSignUpRequest request) {
                 .refreshToken(refreshToken)
                 .build();
     }
-
+    private String cleanBizNo(String rawBusinessNumber) {
+        return rawBusinessNumber.replaceAll("[^0-9]", "");
+    }
 }

src/main/java/backend/stamp/global/config/RestTemplateConfig.java

@@ -0,0 +1,13 @@
+package backend.stamp.global.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.client.RestTemplate;
+
+@Configuration
+public class RestTemplateConfig {
+    @Bean
+    public RestTemplate restTemplate() {
+        return new RestTemplate();
+    }
+}

src/main/java/backend/stamp/global/exception/ErrorCode.java

@@ -56,6 +56,8 @@ public enum ErrorCode {
     MENU_LIMIT_EXCEEDED(HttpStatus.BAD_REQUEST, 428, "메뉴 추가는 10개까지 가능합니다."),
     REVIEW_ALREADY_EXISTS(HttpStatus.BAD_REQUEST,429, "이미 리뷰를 작성하셨습니다."),
     STAMP_NOT_COMPLETED(HttpStatus.BAD_REQUEST, 430, "스탬프판을 완성하지 않아 리뷰 작성 권한이 없습니다."),
+    INVALID_BUSINESS_NUMBER(HttpStatus.BAD_REQUEST, 431, "사업자번호를 다시 확인해 주세요."),
+    INVALID_EMAIL_VERIFICATION_TOKEN(HttpStatus.BAD_REQUEST, 432, "이메일 인증이 완료되지 않았습니다."),
 
     // 500: Internal Error
     INTERNAL_SERVER_EXCEPTION(HttpStatus.INTERNAL_SERVER_ERROR, 501, "예기치 못한 오류가 발생했습니다."),
@@ -66,6 +68,7 @@ public enum ErrorCode {
     EMAIL_CODE_NOT_FOUND(HttpStatus.NOT_FOUND, 504, "요청하신 이메일의 인증번호가 존재하지 않습니다."),
     INVALID_EMAIL_CODE(HttpStatus.BAD_REQUEST, 505, "이메일 인증번호가 일치하지 않습니다."),
 
+    BUSINESS_STATUS_CHECK_FAILED(HttpStatus.INTERNAL_SERVER_ERROR, 506, "사업자 상태 조회 중 오류가 발생했습니다."),
 
     // object 업로드 실패
     OBJECT_UPLOAD_FAIL(HttpStatus.INTERNAL_SERVER_ERROR, 600, "이미지 업로드에 실패했습니다.");