feat/jobpostdetail

src/main/java/com/chaineeproject/chainee/controller/JobPostController.java

@@ -1,18 +1,22 @@
 // src/main/java/com/chaineeproject/chainee/controller/JobPostController.java
 package com.chaineeproject.chainee.controller;
 
+import com.chaineeproject.chainee.dto.AuthorHeader;
+import com.chaineeproject.chainee.dto.JobPostDetailView;
 import com.chaineeproject.chainee.dto.JobPostRequest;
 import com.chaineeproject.chainee.dto.JobPostResponse;
 import com.chaineeproject.chainee.entity.JobPost;
 import com.chaineeproject.chainee.entity.User;
 import com.chaineeproject.chainee.exception.ApplicationException;
 import com.chaineeproject.chainee.exception.ErrorCode;
+import com.chaineeproject.chainee.repository.FollowRepository;
 import com.chaineeproject.chainee.repository.JobPostRepository;
 import com.chaineeproject.chainee.repository.UserRepository;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.media.*;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -22,6 +26,7 @@
 import org.springframework.web.bind.annotation.*;
 
 import java.time.LocalDateTime;
+import java.util.ArrayList;
 import java.util.List;
 
 @RestController
@@ -34,6 +39,7 @@ public class JobPostController {
     private final UserRepository userRepository;
     private final JobPostRepository jobPostRepository;
     private final ObjectMapper objectMapper;
+    private final FollowRepository followRepository;
 
     @PostMapping
     @Operation(
@@ -95,4 +101,84 @@ public ResponseEntity<JobPostResponse> createJobPost(
             throw new ApplicationException(ErrorCode.INVALID_REQUEST);
         }
     }
+
+    @GetMapping("/{postId}")
+    @Operation(
+            summary = "구인 공고 상세 조회",
+            description = "지정한 공고 ID의 상세 정보를 반환합니다.",
+            responses = @ApiResponse(
+                    responseCode = "200",
+                    content = @Content(
+                            mediaType = "application/json",
+                            schema = @Schema(implementation = JobPostDetailView.class),
+                            examples = @ExampleObject(value = """
+                            {
+                              "id": 1,
+                              "title": "백엔드 개발자 구합니다",
+                              "description": "Spring Boot 기반 API 개발/운영, 코드리뷰 문화",
+                              "payment": 3500000,
+                              "requiredSkills": ["Java","Spring Boot","JPA","MySQL"],
+                              "duration": "6m",
+                              "deadline": "2025-12-31",
+                              "createdAt": "2025-11-09T17:35:30.647140",
+                              "applicantCount": 2,
+                              "author": {
+                                "id": 5,
+                                "name": "홍길동",
+                                "profileImageUrl": "https://cdn.example.com/u/5.png",
+                                "positions": "Backend,DevOps",
+                                "from": "Hongik Univ.",
+                                "inLocation": "Seoul",
+                                "website": "https://example.com",
+                                "followers": 12,
+                                "followings": 7
+                              }
+                            }
+                            """)
+                    )
+            )
+    )
+    public ResponseEntity<JobPostDetailView> getJobPost(@PathVariable Long postId) {
+        JobPost jp = jobPostRepository.findById(postId)
+                .orElseThrow(() -> new ApplicationException(ErrorCode.JOB_POST_NOT_FOUND));
+
+        var author = jp.getAuthor();
+        long followers = followRepository.countByFolloweeId(author.getId());
+        long followings = followRepository.countByFollowerId(author.getId());
+
+        var authorHeader = new AuthorHeader(
+                author.getId(),
+                author.getName(),
+                author.getProfileImageUrl(),
+                author.getPositions(),   // 문자열(joined) 보관이라면 그대로
+                author.getFrom(),
+                author.getInLocation(),
+                author.getWebsite(),
+                followers,
+                followings
+        );
+
+        return ResponseEntity.ok(new JobPostDetailView(
+                jp.getId(),
+                jp.getTitle(),
+                jp.getDescription(),
+                jp.getPayment(),
+                parseSkills(jp.getRequiredSkills()),
+                jp.getDuration(),
+                jp.getDeadline(),
+                jp.getCreatedAt(),
+                jp.getApplicantCount(),
+                authorHeader
+        ));
+    }
+    private java.util.List<String> parseSkills(String json) {
+        if (json == null || json.isBlank()) return java.util.List.of();
+        try {
+            return objectMapper.readValue(json, objectMapper.getTypeFactory()
+                    .constructCollectionType(ArrayList.class, String.class));
+        } catch (Exception e) {
+            log.warn("requiredSkills 파싱 실패, 빈 배열로 대체. json={}", json, e);
+            return java.util.List.of();
+        }
+    }
 }

src/main/java/com/chaineeproject/chainee/dto/AuthorHeader.java

@@ -1,17 +1,19 @@
+// src/main/java/com/chaineeproject/chainee/dto/AuthorHeader.java
 package com.chaineeproject.chainee.dto;
 
 import io.swagger.v3.oas.annotations.media.Schema;
+
 import java.util.List;
 
-@Schema(description = "공고 작성자 헤더 정보")
+@Schema(description = "작성자 요약 정보")
 public record AuthorHeader(
-        Long id,
-        String name,
-        String profileImageUrl,
-        List<String> positions,
-        String from,
-        String in,
-        String website,
-        @Schema(description = "팔로워 수") long followerCount,
-        @Schema(description = "팔로잉 수") long followingCount
-) {}
+        @Schema(description = "작성자 ID") Long id,
+        @Schema(description = "작성자 이름") String name,
+        @Schema(description = "프로필 이미지 URL") String profileImageUrl,
+        @Schema(description = "포지션(joined)") List<String> positions,
+        @Schema(description = "학교/소속 등 from 필드") String from,
+        @Schema(description = "거주/위치 inLocation") String inLocation,
+        @Schema(description = "웹사이트") String website,
+        @Schema(description = "팔로워 수") long followers,
+        @Schema(description = "팔로잉 수") long followings
+) {}

src/main/java/com/chaineeproject/chainee/dto/JobPostDetail.java → src/main/java/com/chaineeproject/chainee/dto/JobPostDetailView.java

@@ -1,13 +1,15 @@
+// src/main/java/com/chaineeproject/chainee/dto/JobPostDetailView.java
 package com.chaineeproject.chainee.dto;
 
 import io.swagger.v3.oas.annotations.media.Schema;
+
 import java.math.BigDecimal;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.util.List;
 
-@Schema(description = "구인 공고 상세")
-public record JobPostDetail(
+@Schema(description = "구인 공고 상세 응답 뷰")
+public record JobPostDetailView(
         Long id,
         String title,
         String description,