[feat/#94] 사용자 문항 조회 api 구현

Author: seokbeom00

src/main/java/com/moplus/moplus_server/client/submit/controller/ClientGetController.java

@@ -2,6 +2,7 @@
 
 import com.moplus.moplus_server.client.submit.dto.response.AllProblemGetResponse;
 import com.moplus.moplus_server.client.submit.dto.response.CommentaryGetResponse;
+import com.moplus.moplus_server.client.submit.dto.response.ProblemClientGetResponse;
 import com.moplus.moplus_server.client.submit.service.ClientGetService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
@@ -39,4 +40,13 @@ public ResponseEntity<List<AllProblemGetResponse>> getAllProblem(
     ) {
         return ResponseEntity.ok(clientGetService.getAllProblem(year, month));
     }
+
+    @GetMapping("problem/{publishId}/{problemId}")
+    @Operation(summary = "문항 조회", description = "사용자에게 보여지는 문항을 조회합니다.")
+    public ResponseEntity<ProblemClientGetResponse> getProblem(
+            @PathVariable Long publishId,
+            @PathVariable Long problemId
+    ) {
+        return ResponseEntity.ok(clientGetService.getProblem(publishId, problemId));
+    }
 }

src/main/java/com/moplus/moplus_server/client/submit/dto/response/ProblemClientGetResponse.java

@@ -0,0 +1,28 @@
+package com.moplus.moplus_server.client.submit.dto.response;
+
+import com.moplus.moplus_server.client.submit.domain.ChildProblemSubmitStatus;
+import com.moplus.moplus_server.client.submit.domain.ProblemSubmitStatus;
+import com.moplus.moplus_server.domain.problem.domain.problem.Problem;
+import java.util.List;
+import lombok.Builder;
+
+@Builder
+public record ProblemClientGetResponse(
+        int number,
+        String imageUrl,
+        Integer recommendedMinute,
+        Integer recommendedSecond,
+        ProblemSubmitStatus status,
+        List<ChildProblemSubmitStatus> childProblemStatuses
+) {
+    public static ProblemClientGetResponse of(Problem problem, ProblemSubmitStatus status, List<ChildProblemSubmitStatus> childProblemStatuses) {
+        return ProblemClientGetResponse.builder()
+                .number(problem.getNumber())
+                .imageUrl(problem.getMainProblemImageUrl())
+                .status(status)
+                .childProblemStatuses(childProblemStatuses)
+                .recommendedMinute(problem.getRecommendedTime().getMinute())
+                .recommendedSecond(problem.getRecommendedTime().getSecond())
+                .build();
+    }
+}

src/main/java/com/moplus/moplus_server/client/submit/repository/ChildProblemSubmitRepository.java

@@ -3,6 +3,7 @@
 import com.moplus.moplus_server.client.submit.domain.ChildProblemSubmit;
 import com.moplus.moplus_server.global.error.exception.ErrorCode;
 import com.moplus.moplus_server.global.error.exception.NotFoundException;
+import java.util.List;
 import java.util.Optional;
 import org.springframework.data.jpa.repository.JpaRepository;
 
@@ -13,4 +14,7 @@ default ChildProblemSubmit findByMemberIdAndPublishIdAndChildProblemIdElseThrow(
         return findByMemberIdAndPublishIdAndChildProblemId(memberId, publishId, childProblemId).orElseThrow(
                 () -> new NotFoundException(ErrorCode.CHILD_PROBLEM_SUBMIT_NOT_CONFIRMED));
     }
+
+    List<ChildProblemSubmit> findAllByMemberIdAndPublishIdAndChildProblemIdIn(Long memberId, Long publishId,
+                                                                            List<Long> childProblemIds);
 }

src/main/java/com/moplus/moplus_server/client/submit/service/ClientGetService.java

@@ -2,16 +2,20 @@
 
 
 import com.moplus.moplus_server.admin.publish.domain.Publish;
+import com.moplus.moplus_server.client.submit.domain.ChildProblemSubmit;
+import com.moplus.moplus_server.client.submit.domain.ChildProblemSubmitStatus;
 import com.moplus.moplus_server.client.submit.domain.ProblemSubmit;
 import com.moplus.moplus_server.client.submit.domain.ProblemSubmitStatus;
 import com.moplus.moplus_server.client.submit.dto.response.AllProblemGetResponse;
 import com.moplus.moplus_server.client.submit.dto.response.ChildProblemDetailResponse;
 import com.moplus.moplus_server.client.submit.dto.response.CommentaryGetResponse;
 import com.moplus.moplus_server.client.submit.dto.response.DayProgress;
 import com.moplus.moplus_server.client.submit.dto.response.PrescriptionResponse;
+import com.moplus.moplus_server.client.submit.dto.response.ProblemClientGetResponse;
 import com.moplus.moplus_server.client.submit.dto.response.ProblemDetailResponse;
 import com.moplus.moplus_server.client.submit.repository.ChildProblemSubmitRepository;
 import com.moplus.moplus_server.client.submit.repository.ProblemSubmitRepository;
+import com.moplus.moplus_server.domain.problem.domain.childProblem.ChildProblem;
 import com.moplus.moplus_server.domain.problem.domain.problem.Problem;
 import com.moplus.moplus_server.domain.problem.repository.ProblemRepository;
 import com.moplus.moplus_server.domain.problemset.repository.ProblemSetRepository;
@@ -116,4 +120,27 @@ private String getMainProblemImageUrl(Long problemSetId) {
                 .map(Problem::getMainProblemImageUrl)
                 .orElse(null);
     }
+
+    @Transactional(readOnly = true)
+    public ProblemClientGetResponse getProblem(Long publishId, Long problemId) {
+        Long memberId = 1L;
+
+        Problem problem = problemRepository.findByIdElseThrow(problemId);
+
+        // 문항 제출 조회
+        ProblemSubmit problemSubmit = problemSubmitRepository.findByMemberIdAndPublishIdAndProblemIdElseThrow(memberId,
+                publishId, problemId);
+
+        // 새끼 문항 제출 상태 조회
+        List<Long> childProblemIds = problem.getChildProblems().stream()
+                .map(ChildProblem::getId)
+                .toList();
+
+        List<ChildProblemSubmitStatus> childProblemStatuses = childProblemSubmitRepository.findAllByMemberIdAndPublishIdAndChildProblemIdIn(
+                memberId, publishId, childProblemIds).stream()
+                .map(ChildProblemSubmit::getStatus)
+                .toList();
+
+        return ProblemClientGetResponse.of(problem, problemSubmit.getStatus(), childProblemStatuses);
+    }
 }