[DDING-95] 지원자 상세 조회 API 구현

src/main/java/ddingdong/ddingdongBE/domain/form/service/dto/query/FormQuery.java

@@ -20,6 +20,7 @@ public record FormQuery(
 
     @Builder
     public record FormFieldListQuery(
+            Long id,
             String question,
             FieldType type,
             List<String> options,
@@ -29,6 +30,7 @@ public record FormFieldListQuery(
     ) {
         public static FormFieldListQuery from(FormField formField) {
             return FormFieldListQuery.builder()
+                    .id(formField.getId())
                     .question(formField.getQuestion())
                     .type(formField.getFieldType())
                     .options(formField.getOptions())

src/main/java/ddingdong/ddingdongBE/domain/formapplication/api/CentralFormApplicationApi.java

@@ -1,6 +1,7 @@
 package ddingdong.ddingdongBE.domain.formapplication.api;
 
 import ddingdong.ddingdongBE.auth.PrincipalDetails;
+import ddingdong.ddingdongBE.domain.formapplication.controller.dto.response.FormApplicationResponse;
 import ddingdong.ddingdongBE.domain.formapplication.controller.dto.response.MyFormApplicationPageResponse;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
@@ -31,4 +32,16 @@ MyFormApplicationPageResponse getMyFormApplicationPage(
             @AuthenticationPrincipal PrincipalDetails principalDetails
     );
 
+    @Operation(summary = "지원자 상세 조회 API")
+    @ApiResponse(responseCode = "200", description = "지원자 상세 조회 성공",
+            content = @Content(schema = @Schema(implementation = FormApplicationResponse.class)))
+    @ResponseStatus(HttpStatus.OK)
+    @SecurityRequirement(name = "AccessToken")
+    @GetMapping("/my/forms/{formId}/applications/{applicationId}")
+    FormApplicationResponse getFormApplication(
+            @PathVariable("formId") Long formId,
+            @PathVariable("applicationId") Long applicationId,
+            @AuthenticationPrincipal PrincipalDetails principalDetails
+    );
+
 }

src/main/java/ddingdong/ddingdongBE/domain/formapplication/controller/CentralFormApplicationController.java

@@ -1,9 +1,11 @@
 package ddingdong.ddingdongBE.domain.formapplication.controller;
 
 import ddingdong.ddingdongBE.auth.PrincipalDetails;
+import ddingdong.ddingdongBE.domain.formapplication.controller.dto.response.FormApplicationResponse;
 import ddingdong.ddingdongBE.domain.formapplication.service.FacadeCentralFormApplicationService;
 import ddingdong.ddingdongBE.domain.formapplication.api.CentralFormApplicationApi;
 import ddingdong.ddingdongBE.domain.formapplication.controller.dto.response.MyFormApplicationPageResponse;
+import ddingdong.ddingdongBE.domain.formapplication.service.dto.query.FormApplicationQuery;
 import ddingdong.ddingdongBE.domain.formapplication.service.dto.query.MyFormApplicationPageQuery;
 import ddingdong.ddingdongBE.domain.user.entity.User;
 import lombok.RequiredArgsConstructor;
@@ -21,4 +23,11 @@ public MyFormApplicationPageResponse getMyFormApplicationPage(Long formId, int s
         MyFormApplicationPageQuery query = facadeCentralFormService.getMyFormApplicationPage(formId, user, size, currentCursorId);
         return MyFormApplicationPageResponse.from(query);
     }
+
+    @Override
+    public FormApplicationResponse getFormApplication(Long formId, Long applicationId, PrincipalDetails principalDetails) {
+        User user = principalDetails.getUser();
+        FormApplicationQuery query = facadeCentralFormService.getFormApplication(formId, applicationId, user);
+        return FormApplicationResponse.from(query);
+    }
 }

src/main/java/ddingdong/ddingdongBE/domain/formapplication/controller/dto/response/FormApplicationResponse.java

@@ -0,0 +1,76 @@
+package ddingdong.ddingdongBE.domain.formapplication.controller.dto.response;
+
+import ddingdong.ddingdongBE.domain.form.entity.FieldType;
+import ddingdong.ddingdongBE.domain.formapplication.entity.FormApplicationStatus;
+import ddingdong.ddingdongBE.domain.formapplication.service.dto.query.FormApplicationQuery;
+import ddingdong.ddingdongBE.domain.formapplication.service.dto.query.FormApplicationQuery.FormFieldAnswerListQuery;
+
+import io.swagger.v3.oas.annotations.media.ArraySchema;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Builder;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+@Builder
+public record FormApplicationResponse (
+        @Schema(description = "제출일시", example = "2025-01-01T00:00")
+        LocalDateTime submittedAt,
+        @Schema(description = "지원자 이름", example = "김띵동")
+        String name,
+        @Schema(description = "지원자 학번", example = "60201111")
+        String studentNumber,
+        @Schema(description = "지원자 학과", example = "융합소프트웨어학부")
+        String department,
+        @Schema(description = "status", example = "SUBMITTED")
+        FormApplicationStatus status,
+        @ArraySchema(schema = @Schema(implementation = FormFieldAnswerListResponse.class))
+        List<FormFieldAnswerListResponse> formFieldAnswers
+){
+    @Builder
+    record FormFieldAnswerListResponse (
+            @Schema(description = "폼지 질문 ID", example = "1")
+            Long fieldId,
+            @Schema(description = "폼지 질문", example = "성별이 무엇입니까??")
+            String question,
+            @Schema(description = "폼지 질문 유형", example = "RADIO", allowableValues = {"CHECK_BOX", "RADIO", "TEXT", "LONG_TEXT", "FILE"})
+            FieldType type,
+            @Schema(description = "폼지 지문", example = "[\"여성\", \"남성\"]")
+            List<String> options,
+            @Schema(description = "필수 여부", example = "true")
+            Boolean required,
+            @Schema(description = "질문 순서", example = "1")
+            Integer order,
+            @Schema(description = "섹션", example = "공통")
+            String section,
+            @Schema(description = "질문 답변 값", example = "[\"지문1\"]")
+            List<String> value
+    ) {
+        public static FormFieldAnswerListResponse from(FormFieldAnswerListQuery formFieldAnswerListQuery) {
+            return FormFieldAnswerListResponse.builder()
+                    .fieldId(formFieldAnswerListQuery.fieldId())
+                    .question(formFieldAnswerListQuery.question())
+                    .type(formFieldAnswerListQuery.type())
+                    .options(formFieldAnswerListQuery.options())
+                    .required(formFieldAnswerListQuery.required())
+                    .order(formFieldAnswerListQuery.order())
+                    .section(formFieldAnswerListQuery.section())
+                    .value(formFieldAnswerListQuery.value())
+                    .build();
+        }
+    }
+    public static FormApplicationResponse from(FormApplicationQuery formApplicationQuery) {
+        List<FormFieldAnswerListResponse> responses = formApplicationQuery.formFieldAnswers().stream()
+                .map(FormFieldAnswerListResponse::from)
+                .toList();
+
+        return FormApplicationResponse.builder()
+                .submittedAt(formApplicationQuery.createdAt())
+                .name(formApplicationQuery.name())
+                .studentNumber(formApplicationQuery.studentNumber())
+                .department(formApplicationQuery.department())
+                .status(formApplicationQuery.status())
+                .formFieldAnswers(responses)
+                .build();
+    }
+}

src/main/java/ddingdong/ddingdongBE/domain/formapplication/repository/FormAnswerRepository.java

@@ -1,7 +1,11 @@
 package ddingdong.ddingdongBE.domain.formapplication.repository;
 
 import ddingdong.ddingdongBE.domain.formapplication.entity.FormAnswer;
+import ddingdong.ddingdongBE.domain.formapplication.entity.FormApplication;
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import java.util.List;
+
 public interface FormAnswerRepository extends JpaRepository<FormAnswer, Long> {
+    List<FormAnswer> findAllByFormApplication(FormApplication formApplication);
 }

src/main/java/ddingdong/ddingdongBE/domain/formapplication/service/FacadeCentralFormApplicationService.java

@@ -1,10 +1,12 @@
 package ddingdong.ddingdongBE.domain.formapplication.service;
 
+import ddingdong.ddingdongBE.domain.formapplication.service.dto.query.FormApplicationQuery;
 import ddingdong.ddingdongBE.domain.formapplication.service.dto.query.MyFormApplicationPageQuery;
 import ddingdong.ddingdongBE.domain.user.entity.User;
 
 public interface FacadeCentralFormApplicationService {
 
     MyFormApplicationPageQuery getMyFormApplicationPage(Long formId, User user, int size, Long currentCursorId);
 
+    FormApplicationQuery getFormApplication(Long formId, Long applicationId, User user);
 }

src/main/java/ddingdong/ddingdongBE/domain/formapplication/service/FacadeCentralFormApplicationServiceImpl.java

@@ -2,6 +2,10 @@
 
 import ddingdong.ddingdongBE.domain.club.entity.Club;
 import ddingdong.ddingdongBE.domain.club.service.ClubService;
+import ddingdong.ddingdongBE.domain.form.entity.FormField;
+import ddingdong.ddingdongBE.domain.form.service.FormFieldService;
+import ddingdong.ddingdongBE.domain.formapplication.entity.FormAnswer;
+import ddingdong.ddingdongBE.domain.formapplication.service.dto.query.FormApplicationQuery;
 import ddingdong.ddingdongBE.domain.formapplication.service.dto.query.PagingQuery;
 import ddingdong.ddingdongBE.domain.form.entity.Form;
 import ddingdong.ddingdongBE.domain.form.service.FormService;
@@ -25,6 +29,8 @@ public class FacadeCentralFormApplicationServiceImpl implements FacadeCentralFor
     private final ClubService clubService;
     private final FormService formService;
     private final FormApplicationService formApplicationService;
+    private final FormAnswerService formAnswerService;
+    private final FormFieldService formFieldService;
 
     @Override
     public MyFormApplicationPageQuery getMyFormApplicationPage(Long formId, User user, int size, Long currentCursorId) {
@@ -44,6 +50,18 @@ public MyFormApplicationPageQuery getMyFormApplicationPage(Long formId, User use
         PagingQuery pagingQuery = PagingQuery.of(currentCursorId, completeFormApplications, formApplicationPage.hasNext());
 
         return MyFormApplicationPageQuery.of(formApplicationListQueries, pagingQuery);
+    }
 
+    @Override
+    public FormApplicationQuery getFormApplication(Long formId, Long applicationId, User user) {
+        Club club = clubService.getByUserId(user.getId());
+        Form form = formService.getById(formId);
+        if (!form.getClub().equals(club)) {
+            throw new AccessDeniedException("권한이 없습니다.");
+        }
+        FormApplication formApplication = formApplicationService.getById(applicationId);
+        List<FormField> formFields = formFieldService.findAllByForm(form);
+        List<FormAnswer> formAnswers = formAnswerService.getAllByApplication(formApplication);
+        return FormApplicationQuery.of(formApplication, formFields, formAnswers);
     }
 }

src/main/java/ddingdong/ddingdongBE/domain/formapplication/service/FormAnswerService.java

@@ -1,10 +1,14 @@
 package ddingdong.ddingdongBE.domain.formapplication.service;
 
 import ddingdong.ddingdongBE.domain.formapplication.entity.FormAnswer;
+import ddingdong.ddingdongBE.domain.formapplication.entity.FormApplication;
+
 import java.util.List;
 
 public interface FormAnswerService {
 
     void createAll(List<FormAnswer> formAnswers);
 
+    List<FormAnswer> getAllByApplication(FormApplication formApplication);
+
 }

src/main/java/ddingdong/ddingdongBE/domain/formapplication/service/FormApplicationService.java

@@ -8,4 +8,6 @@ public interface FormApplicationService {
     FormApplication create(FormApplication formApplication);
 
     Slice<FormApplication> getFormApplicationPageByFormId(Long formId, int size, Long currentCursorId);
+
+    FormApplication getById(Long applicationId);
 }

src/main/java/ddingdong/ddingdongBE/domain/formapplication/service/GeneralFormAnswerService.java

@@ -1,6 +1,7 @@
 package ddingdong.ddingdongBE.domain.formapplication.service;
 
 import ddingdong.ddingdongBE.domain.formapplication.entity.FormAnswer;
+import ddingdong.ddingdongBE.domain.formapplication.entity.FormApplication;
 import ddingdong.ddingdongBE.domain.formapplication.repository.FormAnswerRepository;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
@@ -21,4 +22,8 @@ public void createAll(List<FormAnswer> formAnswers) {
         formAnswerRepository.saveAll(formAnswers);
     }
 
+    @Override
+    public List<FormAnswer> getAllByApplication(FormApplication formApplication) {
+        return formAnswerRepository.findAllByFormApplication(formApplication);
+    }
 }

src/main/java/ddingdong/ddingdongBE/domain/formapplication/service/GeneralFormApplicationService.java

@@ -31,6 +31,11 @@ public Slice<FormApplication> getFormApplicationPageByFormId(Long formId, int si
         return buildSlice(formApplicationPages, size);
     }
 
+    @Override
+    public FormApplication getById(Long applicationId) {
+        return formApplicationRepository.findById(applicationId).orElse(null);
+    }
+
     private Slice<FormApplication> buildSlice(Slice<FormApplication> originalSlice, int size) {
         List<FormApplication> content = new ArrayList<>(originalSlice.getContent());
         if (content.isEmpty()) {

src/main/java/ddingdong/ddingdongBE/domain/formapplication/service/dto/query/FormApplicationQuery.java

@@ -0,0 +1,94 @@
+package ddingdong.ddingdongBE.domain.formapplication.service.dto.query;
+
+import ddingdong.ddingdongBE.domain.form.entity.FieldType;
+
+import ddingdong.ddingdongBE.domain.form.entity.FormField;
+import ddingdong.ddingdongBE.domain.formapplication.entity.FormAnswer;
+import ddingdong.ddingdongBE.domain.formapplication.entity.FormApplication;
+import ddingdong.ddingdongBE.domain.formapplication.entity.FormApplicationStatus;
+import ddingdong.ddingdongBE.domain.form.service.dto.query.FormQuery.FormFieldListQuery;
+
+import lombok.Builder;
+
+import java.util.function.Function;
+import java.util.stream.Collectors;
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Map;
+
+@Builder
+public record FormApplicationQuery (
+        LocalDateTime createdAt,
+        String name,
+        String studentNumber,
+        String department,
+        FormApplicationStatus status,
+        List<FormFieldAnswerListQuery> formFieldAnswers
+) {
+    @Builder
+    public record FormAnswerListQuery (
+            Long fieldId,
+            List<String> value
+    ) {
+        public static FormAnswerListQuery from(FormAnswer formAnswer) {
+            return FormAnswerListQuery.builder()
+                    .fieldId(formAnswer.getFormField().getId())
+                    .value(formAnswer.getValue())
+                    .build();
+        }
+    }
+    @Builder
+    public record FormFieldAnswerListQuery (
+            Long fieldId,
+            String question,
+            FieldType type,
+            List<String> options,
+            Boolean required,
+            Integer order,
+            String section,
+            List<String> value
+    ) {
+        public static FormFieldAnswerListQuery from(FormFieldListQuery formFieldListQuery, FormAnswerListQuery formAnswerListQuery) {
+            return FormFieldAnswerListQuery.builder()
+                    .fieldId(formFieldListQuery.id())
+                    .question(formFieldListQuery.question())
+                    .type(formFieldListQuery.type())
+                    .options(formFieldListQuery.options())
+                    .required(formFieldListQuery.required())
+                    .order(formFieldListQuery.order())
+                    .section(formFieldListQuery.section())
+                    .value(formAnswerListQuery.value())
+                    .build();
+        }
+    }
+    public static FormApplicationQuery of(FormApplication formApplication, List<FormField> formFields, List<FormAnswer> formAnswers) {
+        List<FormFieldListQuery> formFieldListQueries = formFields.stream()
+                .map(FormFieldListQuery::from)
+                .toList();
+        List<FormAnswerListQuery> formAnswerListQueries = formAnswers.stream()
+                .map(FormAnswerListQuery::from)
+                .toList();
+        Map<Long, FormAnswerListQuery> answerMap = formAnswerListQueries.stream()
+                .collect(Collectors.toMap(FormAnswerListQuery::fieldId, Function.identity()));
+        List<FormFieldAnswerListQuery> formFieldAnswerListQueries = formFieldListQueries.stream()
+                .map(fieldQuery -> {
+                    FormAnswerListQuery answerQuery = answerMap.get(fieldQuery.id());
+                    if (answerQuery == null) {
+                        answerQuery = FormAnswerListQuery.builder()
+                                .fieldId(fieldQuery.id())
+                                .value(null)
+                                .build();
+                    }
+                    return FormFieldAnswerListQuery.from(fieldQuery, answerQuery);
+                })
+                .collect(Collectors.toList());
+        return FormApplicationQuery.builder()
+                .createdAt(formApplication.getCreatedAt())
+                .name(formApplication.getName())
+                .studentNumber(formApplication.getStudentNumber())
+                .department(formApplication.getDepartment())
+                .status(formApplication.getStatus())
+                .formFieldAnswers(formFieldAnswerListQueries)
+                .build();
+    }
+}