프로젝트 상세 조회 기능 구현

src/main/java/sixgaezzang/sidepeek/common/exception/ErrorCode.java

@@ -0,0 +1,9 @@
+package sixgaezzang.sidepeek.common.exception;
+
+public interface ErrorCode {
+
+    int getCode();
+
+    String getMessage();
+
+}

src/main/java/sixgaezzang/sidepeek/projects/controller/ProjectController.java

@@ -0,0 +1,34 @@
+package sixgaezzang.sidepeek.projects.controller;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import sixgaezzang.sidepeek.projects.dto.response.ProjectResponse;
+import sixgaezzang.sidepeek.projects.service.ProjectService;
+
+@RestController
+@RequestMapping("/projects")
+@Tag(name = "Project", description = "Project API")
+@RequiredArgsConstructor
+public class ProjectController {
+
+    private final ProjectService projectService;
+
+    @GetMapping("/{id}")
+    @Operation(summary = "프로젝트 상세 조회")
+    @ApiResponse(responseCode = "200", description = "프로젝트 상세 조회 성공")
+    public ResponseEntity<ProjectResponse> getById(
+        @PathVariable Long id
+    ) {
+        ProjectResponse response = projectService.findById(id);
+
+        return ResponseEntity.ok(response);
+    }
+
+}

src/main/java/sixgaezzang/sidepeek/projects/domain/Project.java

@@ -49,6 +49,9 @@ public class Project extends BaseTimeEntity {
     @Column(name = "github_url", columnDefinition = "TEXT")
     private String githubUrl;
 
+    @Column(name = "owner_id", columnDefinition = "BIGINT")
+    private Long ownerId;
+
     @Column(name = "description", nullable = false, columnDefinition = "TEXT")
     private String description;
 
@@ -65,9 +68,10 @@ public class Project extends BaseTimeEntity {
     private LocalDateTime deletedAt;
 
     @Builder
-    public Project(String name, String subName, String overview, LocalDateTime startDate, LocalDateTime endDate,
-                   String thumbnailUrl, String deployUrl, String githubUrl, String description,
-                   String troubleshooting) {
+    public Project(String name, String subName, String overview, LocalDateTime startDate,
+        LocalDateTime endDate,
+        String thumbnailUrl, String deployUrl, String githubUrl, String description,
+        String troubleshooting) {
         this.name = name;
         this.subName = subName;
         this.overview = overview;
@@ -82,4 +86,8 @@ public Project(String name, String subName, String overview, LocalDateTime start
         this.viewCount = 0L;
     }
 
+    public void increaseViewCount() {
+        this.viewCount++;
+    }
+
 }

src/main/java/sixgaezzang/sidepeek/projects/domain/file/FileType.java

@@ -1,6 +1,7 @@
 package sixgaezzang.sidepeek.projects.domain.file;
 
 public enum FileType {
-    IMAGE,
-    VIDEO
+    OVERVIEW_IMAGE,
+    DESCRIPTION_IMAGE,
+    TROUBLE_SHOOTING_IMAGE
 }

src/main/java/sixgaezzang/sidepeek/projects/domain/member/Member.java

@@ -2,8 +2,6 @@
 
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
-import jakarta.persistence.EnumType;
-import jakarta.persistence.Enumerated;
 import jakarta.persistence.FetchType;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
@@ -36,21 +34,17 @@ public class Member {
     @JoinColumn(name = "project_id")
     private Project project;
 
-    @Column(name = "authority", nullable = false, length = 15, columnDefinition = "VARCHAR")
-    @Enumerated(EnumType.STRING)
-    private AuthorityType authority;
-
     @Column(name = "role", nullable = false, length = 15)
     private String role;
 
     @Column(name = "nickname", nullable = false, length = 20)
     private String nickname;
 
     @Builder
-    public Member(User user, Project project, AuthorityType authority, String role, String nickname) {
+    public Member(User user, Project project, String role,
+        String nickname) {
         this.user = user;
         this.project = project;
-        this.authority = authority;
         this.role = role;
         this.nickname = nickname;
     }

src/main/java/sixgaezzang/sidepeek/projects/dto/response/MemberSummary.java

@@ -0,0 +1,31 @@
+package sixgaezzang.sidepeek.projects.dto.response;
+
+import lombok.Builder;
+import sixgaezzang.sidepeek.projects.domain.member.Member;
+import sixgaezzang.sidepeek.users.domain.User;
+import sixgaezzang.sidepeek.users.dto.response.UserSummaryResponse;
+
+@Builder
+public record MemberSummary(
+    Long id,
+    String category,
+    UserSummaryResponse userSummary
+) {
+
+    public static MemberSummary from(Member member) {
+        User user = member.getUser();
+        UserSummaryResponse userSummaryResponse = (user == null)
+            ? UserSummaryResponse.from(member.getNickname())
+            : UserSummaryResponse.from(user);
+        return MemberSummary.from(member, userSummaryResponse);
+    }
+
+    public static MemberSummary from(Member member, UserSummaryResponse userSummary) {
+        return MemberSummary.builder()
+            .id(member.getId())
+            .category(member.getRole())
+            .userSummary(userSummary)
+            .build();
+    }
+
+}

src/main/java/sixgaezzang/sidepeek/projects/dto/response/OverviewImageSummary.java

@@ -0,0 +1,19 @@
+package sixgaezzang.sidepeek.projects.dto.response;
+
+import lombok.Builder;
+import sixgaezzang.sidepeek.projects.domain.file.File;
+
+@Builder
+public record OverviewImageSummary(
+    Long id,
+    String url
+) {
+
+    public static OverviewImageSummary from(File file) {
+        return OverviewImageSummary.builder()
+            .id(file.getId())
+            .url(file.getUrl())
+            .build();
+    }
+
+}

src/main/java/sixgaezzang/sidepeek/projects/dto/response/ProjectResponse.java

@@ -0,0 +1,51 @@
+package sixgaezzang.sidepeek.projects.dto.response;
+
+import java.time.YearMonth;
+import java.util.List;
+import lombok.Builder;
+import sixgaezzang.sidepeek.projects.domain.Project;
+
+@Builder
+public record ProjectResponse(
+    Long id,
+    String name,
+    String subName,
+    String overview,
+    String thumbnailUrl,
+    List<OverviewImageSummary> overviewImageUrl,
+    String githubUrl,
+    String deployUrl,
+    Long viewCount,
+    Long likeCount,
+    List<ProjectSkillSummary> techStacks,
+    YearMonth startDate,
+    YearMonth endDate,
+    List<MemberSummary> members,
+    String description,
+    String troubleShooting
+) {
+
+    public static ProjectResponse from(Project project, List<OverviewImageSummary> overviewImageUrl,
+        List<ProjectSkillSummary> techStacks,
+        List<MemberSummary> members) {
+        return ProjectResponse.builder()
+            .id(project.getId())
+            .name(project.getName())
+            .subName(project.getSubName())
+            .overview(project.getOverview())
+            .thumbnailUrl(project.getThumbnailUrl())
+            .overviewImageUrl(overviewImageUrl)
+            .githubUrl(project.getGithubUrl())
+            .deployUrl(project.getDeployUrl())
+            .viewCount(project.getViewCount())
+            .likeCount(project.getLikeCount())
+            .techStacks(techStacks)
+            .startDate(YearMonth.from(project.getStartDate()))
+            .endDate(YearMonth.from(project.getEndDate()))
+            .members(members)
+            .description(project.getDescription())
+            .troubleShooting(project.getTroubleshooting())
+            .build();
+    }
+
+}

src/main/java/sixgaezzang/sidepeek/projects/dto/response/ProjectSkillSummary.java

@@ -0,0 +1,22 @@
+package sixgaezzang.sidepeek.projects.dto.response;
+
+import lombok.Builder;
+import sixgaezzang.sidepeek.projects.domain.ProjectSkill;
+import sixgaezzang.sidepeek.skill.dto.response.SkillResponse;
+
+@Builder
+public record ProjectSkillSummary(
+    Long id,
+    String category,
+    SkillResponse skill
+) {
+
+    public static ProjectSkillSummary from(ProjectSkill projectSkill) {
+        return ProjectSkillSummary.builder()
+            .id(projectSkill.getId())
+            .category(projectSkill.getCategory())
+            .skill(SkillResponse.from(projectSkill.getSkill()))
+            .build();
+    }
+
+}

src/main/java/sixgaezzang/sidepeek/projects/exception/ProjectErrorCode.java

@@ -0,0 +1,26 @@
+package sixgaezzang.sidepeek.projects.exception;
+
+import sixgaezzang.sidepeek.common.exception.ErrorCode;
+
+public enum ProjectErrorCode implements ErrorCode {
+
+    ID_NOT_EXISTING(2001, "해당 프로젝트가 존재하지 않습니다.");
+
+    private final int code;
+    private final String message;
+
+    ProjectErrorCode(int code, String message) {
+        this.code = code;
+        this.message = message;
+    }
+
+    @Override
+    public int getCode() {
+        return code;
+    }
+
+    @Override
+    public String getMessage() {
+        return message;
+    }
+}

src/main/java/sixgaezzang/sidepeek/projects/repository/FileRepository.java

@@ -0,0 +1,13 @@
+package sixgaezzang.sidepeek.projects.repository;
+
+import java.util.List;
+import org.springframework.data.jpa.repository.JpaRepository;
+import sixgaezzang.sidepeek.projects.domain.Project;
+import sixgaezzang.sidepeek.projects.domain.file.File;
+import sixgaezzang.sidepeek.projects.domain.file.FileType;
+
+public interface FileRepository extends JpaRepository<File, Long> {
+
+    List<File> findAllByProjectAndType(Project project, FileType type);
+
+}

src/main/java/sixgaezzang/sidepeek/projects/repository/MemberRepository.java

@@ -0,0 +1,11 @@
+package sixgaezzang.sidepeek.projects.repository;
+
+import java.util.List;
+import org.springframework.data.jpa.repository.JpaRepository;
+import sixgaezzang.sidepeek.projects.domain.Project;
+import sixgaezzang.sidepeek.projects.domain.member.Member;
+
+public interface MemberRepository extends JpaRepository<Member, Long> {
+
+    List<Member> findAllByProject(Project project);
+}

src/main/java/sixgaezzang/sidepeek/projects/repository/ProjectRepository.java

@@ -0,0 +1,8 @@
+package sixgaezzang.sidepeek.projects.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import sixgaezzang.sidepeek.projects.domain.Project;
+
+public interface ProjectRepository extends JpaRepository<Project, Long> {
+
+}

src/main/java/sixgaezzang/sidepeek/projects/repository/ProjectSkillRepository.java

@@ -0,0 +1,12 @@
+package sixgaezzang.sidepeek.projects.repository;
+
+import java.util.List;
+import org.springframework.data.jpa.repository.JpaRepository;
+import sixgaezzang.sidepeek.projects.domain.Project;
+import sixgaezzang.sidepeek.projects.domain.ProjectSkill;
+
+public interface ProjectSkillRepository extends JpaRepository<ProjectSkill, Long> {
+
+    List<ProjectSkill> findAllByProject(Project project);
+
+}

src/main/java/sixgaezzang/sidepeek/projects/service/ProjectService.java

@@ -0,0 +1,57 @@
+package sixgaezzang.sidepeek.projects.service;
+
+import jakarta.persistence.EntityNotFoundException;
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import sixgaezzang.sidepeek.projects.domain.Project;
+import sixgaezzang.sidepeek.projects.domain.file.FileType;
+import sixgaezzang.sidepeek.projects.dto.response.MemberSummary;
+import sixgaezzang.sidepeek.projects.dto.response.OverviewImageSummary;
+import sixgaezzang.sidepeek.projects.dto.response.ProjectResponse;
+import sixgaezzang.sidepeek.projects.dto.response.ProjectSkillSummary;
+import sixgaezzang.sidepeek.projects.exception.ProjectErrorCode;
+import sixgaezzang.sidepeek.projects.repository.FileRepository;
+import sixgaezzang.sidepeek.projects.repository.MemberRepository;
+import sixgaezzang.sidepeek.projects.repository.ProjectRepository;
+import sixgaezzang.sidepeek.projects.repository.ProjectSkillRepository;
+
+@Service
+@RequiredArgsConstructor
+@Transactional(readOnly = true)
+public class ProjectService {
+
+    private final ProjectRepository projectRepository;
+    private final ProjectSkillRepository projectSkillRepository;
+    private final MemberRepository memberRepository;
+    private final FileRepository fileRepository;
+
+    public ProjectResponse findById(Long id) {
+
+        Project project = projectRepository.findById(id)
+            .orElseThrow(
+                () -> new EntityNotFoundException(ProjectErrorCode.ID_NOT_EXISTING.getMessage()));
+
+        project.increaseViewCount();
+
+        List<OverviewImageSummary> overviewImages = fileRepository.findAllByProjectAndType(
+                project, FileType.OVERVIEW_IMAGE)
+            .stream()
+            .map(OverviewImageSummary::from)
+            .toList();
+
+        List<ProjectSkillSummary> techStacks = projectSkillRepository.findAllByProject(project)
+            .stream()
+            .map(ProjectSkillSummary::from)
+            .toList();
+
+        List<MemberSummary> members = memberRepository.findAllByProject(project)
+            .stream()
+            .map(MemberSummary::from)
+            .toList();
+
+        return ProjectResponse.from(project, overviewImages, techStacks, members);
+    }
+
+}