Merge pull request #145 from UMC-WOWMARKET/feat/like

[Feat] 수요조사 Like 기능 #134

src/main/java/wowmarket/wow_server/detail/demandproject/controller/DemandProjectController.java

@@ -2,12 +2,14 @@
 
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.web.bind.annotation.*;
 import wowmarket.wow_server.detail.demandproject.dto.*;
 import wowmarket.wow_server.detail.demandproject.service.DemandItemService;
 import wowmarket.wow_server.detail.demandproject.service.DemandProjectService;
 import wowmarket.wow_server.detail.project.notice.dto.NoticeRequestDto;
 import wowmarket.wow_server.detail.demandproject.service.DemandDetailService;
+import wowmarket.wow_server.domain.User;
 
 import java.util.List;
 
@@ -22,8 +24,8 @@ public class DemandProjectController {
 
     //참여폼: 상세 정보 조회
     @GetMapping("/{demand_project_id}")
-    public DemandProjectInfoResponseDto getProjectInfo(@PathVariable Long demand_project_id) {
-        return demandProjectService.getDemandProjectInfo(demand_project_id);
+    public DemandProjectInfoResponseDto getProjectInfo(@PathVariable Long demand_project_id, @AuthenticationPrincipal User user) {
+        return demandProjectService.getDemandProjectInfo(demand_project_id, user);
     }
 
     //참여폼: 굿즈 소개(이미지 3개) 조회
@@ -44,4 +46,8 @@ public ResponseEntity createDemandForm(@PathVariable Long demand_project_id, @Re
         return demandDetailService.createDemandForm(demand_project_id, requestDto);
     }
 
+    @PostMapping("/{demand_project_id}/like")
+    public ResponseEntity<?> likeProject(@PathVariable Long demand_project_id, @AuthenticationPrincipal User user) {
+        return demandProjectService.likeDemandProject(demand_project_id, user);
+    }
 }

src/main/java/wowmarket/wow_server/detail/demandproject/dto/DemandProjectInfoResponseDto.java

@@ -19,8 +19,9 @@ public class DemandProjectInfoResponseDto {
     private int participant_number; //참여인원
     private int achieved; //달성률 분자
     private int goal; //달성률 분모
+    private boolean isLiked;
 
-    public DemandProjectInfoResponseDto(DemandProject project, int achieved, int goal) {
+    public DemandProjectInfoResponseDto(DemandProject project, int achieved, int goal, boolean isLiked) {
         this.thumbnail = project.getThumbnail(); //대표이미지
         this.category = project.getCategory().getName(); //카테고리
         this.name = project.getProjectName(); //프로젝트 이름
@@ -32,5 +33,6 @@ public DemandProjectInfoResponseDto(DemandProject project, int achieved, int goa
         this.participant_number = project.getParticipant_number(); //참여인원
         this.achieved = achieved;
         this.goal = goal;
+        this.isLiked = isLiked;
     }
 }

src/main/java/wowmarket/wow_server/detail/demandproject/service/DemandProjectService.java

@@ -1,30 +1,32 @@
 package wowmarket.wow_server.detail.demandproject.service;
 
+import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.server.ResponseStatusException;
 import wowmarket.wow_server.detail.demandproject.dto.DemandProjectImgResponseDto;
 import wowmarket.wow_server.detail.demandproject.dto.DemandProjectInfoResponseDto;
+import wowmarket.wow_server.domain.DemandLikes;
 import wowmarket.wow_server.domain.DemandProject;
+import wowmarket.wow_server.domain.Likes;
+import wowmarket.wow_server.domain.User;
 import wowmarket.wow_server.global.jwt.SecurityUtil;
-import wowmarket.wow_server.repository.DemandItemRepository;
-import wowmarket.wow_server.repository.DemandProjectRepository;
-import wowmarket.wow_server.repository.UserRepository;
+import wowmarket.wow_server.repository.*;
 
 import java.util.List;
+import java.util.Optional;
 
 @Service
+@RequiredArgsConstructor
+@Transactional(readOnly = true)
 public class DemandProjectService {
     private final UserRepository userRepository;
     private final DemandProjectRepository demandProjectRepository;
     private final DemandItemRepository demandItemRepository;
-
-    public DemandProjectService(DemandProjectRepository demandProjectRepository, UserRepository userRepository, DemandItemRepository demandItemRepository) {
-        this.userRepository = userRepository;
-        this.demandProjectRepository = demandProjectRepository;
-        this.demandItemRepository = demandItemRepository;
-    }
+    private final DemandLikesRepository demandLikesRepository;
 
     //참여폼: 굿즈 소개(이미지 3개) 조회
     public DemandProjectImgResponseDto getDemandProjectImg(Long demand_project_id){
@@ -33,9 +35,39 @@ public DemandProjectImgResponseDto getDemandProjectImg(Long demand_project_id){
     }
 
     //참여폼: 상세 정보 조회
-    public DemandProjectInfoResponseDto getDemandProjectInfo(Long demand_project_id){
+    @Transactional
+    public DemandProjectInfoResponseDto getDemandProjectInfo(Long demand_project_id, User user){
+        boolean isLiked = false;
         DemandProject demandProject = demandProjectRepository.findByDemandProject_Id(demand_project_id);
         demandProjectRepository.updateView(demand_project_id); //상세정보 조회할 때마다 조회수 +1
-        return new DemandProjectInfoResponseDto(demandProject, demandItemRepository.getTotalOrderCountByDemandProject(demandProject), demandItemRepository.getTotalGoalByDemandProject(demandProject));
+        if (user != null && demandLikesRepository.findByUserAndDemandProject(user, demand_project_id).isPresent()) {
+            isLiked = true;
+        }
+        return new DemandProjectInfoResponseDto(demandProject, demandItemRepository.getTotalOrderCountByDemandProject(demandProject),
+                demandItemRepository.getTotalGoalByDemandProject(demandProject), isLiked);
+    }
+
+    @Transactional
+    public ResponseEntity<?> likeDemandProject(Long demandProjectId, User user) {
+        Optional<DemandLikes> demandLikeExist = demandLikesRepository.findByUserAndDemandProject(user, demandProjectId);
+        if (demandLikeExist.isEmpty()) {
+            demandLikesRepository.save(
+                    DemandLikes.builder()
+                            .user(user).demandProject(demandProjectRepository.findById(demandProjectId).get())
+                            .build()
+            );
+            demandProjectRepository.updateDemandProjectLike(demandProjectId);
+            userRepository.updateDemandProjectLike(user);
+        } else {
+            if (demandProjectRepository.findById(demandProjectId).get().getLikeCnt() > 0
+                    && user.getDemandLike() > 0) {
+                demandLikesRepository.deleteDemandLikes(demandLikeExist.get().getId());
+                demandProjectRepository.updateDemandProjectUnLike(demandProjectId);
+                userRepository.updateDemandProjectUnLike(user);
+            } else {
+                throw new ResponseStatusException(HttpStatus.NOT_FOUND, "like 수가 0이라 unlike할 수 없음");
+            }
+        }
+        return ResponseEntity.ok().build();
     }
 }

src/main/java/wowmarket/wow_server/domain/DemandLikes.java

@@ -0,0 +1,29 @@
+package wowmarket.wow_server.domain;
+
+import jakarta.persistence.*;
+import lombok.*;
+
+@Entity
+@AllArgsConstructor
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@Getter
+public class DemandLikes extends BaseEntity {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "demand_likes_id")
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "user_id")
+    private User user;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "demand_project_id")
+    private DemandProject demandProject;
+
+    @Builder
+    public DemandLikes(User user, DemandProject demandProject) {
+        this.user = user;
+        this.demandProject = demandProject;
+    }
+}

src/main/java/wowmarket/wow_server/domain/DemandProject.java

@@ -47,14 +47,16 @@ public class DemandProject extends BaseEntity{
     private int participant_number;
     private Long final_achievement_rate;
 
-
     @Setter
     @Column(columnDefinition="tinyint(0) default 0")
     private boolean isEnd;
 
     @Column(columnDefinition = "integer default 0", nullable = false)
     private int view; //조회수
 
+    @Column(columnDefinition = "integer default 0", nullable = false)
+    private int likeCnt;
+
     public void setUser(User user){ this.user = user;}
     public void setCategory(Category category){
         this.category = category;

src/main/java/wowmarket/wow_server/domain/Likes.java

@@ -10,7 +10,7 @@
 public class Likes extends BaseEntity {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
-    @Column(name = "like_id")
+    @Column(name = "likes_id")
     private Long id;
 
     @ManyToOne(fetch = FetchType.LAZY)

src/main/java/wowmarket/wow_server/repository/DemandLikesRepository.java

@@ -0,0 +1,22 @@
+package wowmarket.wow_server.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+import org.springframework.stereotype.Repository;
+import wowmarket.wow_server.domain.DemandLikes;
+import wowmarket.wow_server.domain.User;
+
+import java.util.Optional;
+
+@Repository
+public interface DemandLikesRepository extends JpaRepository<DemandLikes, Long> {
+    @Query("SELECT dl FROM DemandLikes dl " +
+            "WHERE dl.user = :user AND dl.demandProject.id = :demandProjectId")
+    Optional<DemandLikes> findByUserAndDemandProject(@Param("user") User user, @Param("demandProjectId") Long demandProjectId);
+
+    @Modifying
+    @Query("DELETE FROM DemandLikes dl WHERE dl.id = :demandLikesId")
+    void deleteDemandLikes(@Param("demandLikesId") Long demandLikesId);
+}

src/main/java/wowmarket/wow_server/repository/DemandProjectRepository.java

@@ -51,4 +51,14 @@ Page<DemandProject> findBySearchUserUniv(@Param("current_date") LocalDate curren
     @Query(nativeQuery = true, value = "update demand_project p set p.participant_number=p.participant_number+1 where demand_project_id=?")
     int updateParticipantNumber(Long demandProjectId);
 
+    @Modifying
+    @Query("UPDATE DemandProject dp SET dp.likeCnt = dp.likeCnt + 1 " +
+            "WHERE dp.id = :demandProjectId")
+    void updateDemandProjectLike(@Param("demandProjectId") Long demandProjectId);
+
+    @Modifying
+    @Query("UPDATE DemandProject dp SET dp.likeCnt = dp.likeCnt - 1 " +
+            "WHERE dp.id = :demandProjectId")
+    void updateDemandProjectUnLike(@Param("demandProjectId") Long demandProjectId);
+
 }

src/main/java/wowmarket/wow_server/repository/UserRepository.java

@@ -19,4 +19,16 @@ public interface UserRepository extends JpaRepository<User, Long> {
     @Query("UPDATE User u SET u.projectLike = u.projectLike - 1 " +
             "WHERE u = :user")
     void updateProjectUnLike(@Param("user") User user);
+
+    @Modifying
+    @Query("UPDATE User u SET u.demandLike = u.demandLike + 1 " +
+            "WHERE u = :user")
+    void updateDemandProjectLike(@Param("user") User user);
+
+    @Modifying
+    @Query("UPDATE User u SET u.demandLike = u.demandLike - 1 " +
+            "WHERE u = :user")
+    void updateDemandProjectUnLike(@Param("user") User user);
+
+
 }