Yv3 #2/like (#24)

* feat[v2#2]: Item funding quantity 구현 중

* chore[v2#2]: MemberCreateRequest 이름 수정

* feat[v2#2]: funding 구현 중

* order, item관계 설정

* item, order 관계 설정

* fix[#1]: order반환 실수 수정

* feat[#2]: 좋아요 기능 구현

src/main/java/com/noriton/team9/controller/SampleController.java

@@ -1,5 +1,6 @@
 package com.noriton.team9.controller;
 
+import com.noriton.team9.request.LikeRequest;
 import com.noriton.team9.request.SampleCreationRequest;
 import com.noriton.team9.service.SampleService;
 import lombok.RequiredArgsConstructor;
@@ -28,4 +29,20 @@ public ResponseEntity readSample(@PathVariable Long sampleId){
     public ResponseEntity createSample(@RequestBody SampleCreationRequest request){
         return ResponseEntity.ok(sampleService.createSample(request));
     }
+
+    @PostMapping("/sample/like")
+    public ResponseEntity likeSample(@RequestBody LikeRequest request){
+        return ResponseEntity.ok(sampleService.likeSample(request));
+    }
+
+    @PostMapping("/sample/unlike")
+    public ResponseEntity unlikeSample(@RequestBody LikeRequest request){
+        return ResponseEntity.ok(sampleService.unlikeSample(request));
+    }
+
+    @GetMapping("/sample/desc")
+    public ResponseEntity readSamplesByLike(){
+        return ResponseEntity.ok(sampleService.readSamplesByLike());
+    }
+
 }

src/main/java/com/noriton/team9/domain/Member.java

@@ -24,6 +24,9 @@ public class Member {
     @OneToMany(mappedBy = "member")
     private List<Orders> ordersList = new ArrayList<>();
 
+//    @ManyToMany(mappedBy = "likedMembers")
+//    private List<Sample> likedSamples = new ArrayList<>();
+
     public static Member createMember(String loginId, String password){
         Member member = new Member();
         member.setLoginId(loginId);

src/main/java/com/noriton/team9/domain/Sample.java

@@ -7,11 +7,14 @@
 import lombok.Getter;
 import lombok.Setter;
 
+import java.util.ArrayList;
+import java.util.List;
+
 @Getter
 @Setter
 @Entity
 @Table(name = "sample")
-public class Sample {
+public class Sample{
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -22,6 +25,10 @@ public class Sample {
     private String imageUrl;
     private String content;
 
+//    @ManyToMany(mappedBy = "likedSamples")
+//    private List<Member> likedMembers = new ArrayList<>();
+
+    private int likeCount;
 
     @ManyToOne
     @JoinColumn(name = "designer_id")
@@ -32,4 +39,14 @@ public void settingDesigner(Designer designer) {
         this.designer = designer;
         designer.getSamples().add(this);
     }
+
+//    @Override
+//    public int compareTo(Sample s) {
+//        if (s.likeCount < likeCount) {
+//            return 1;
+//        } else if (s.likeCount > likeCount) {
+//            return -1;
+//        }
+//        return 0;
+//    }
 }

src/main/java/com/noriton/team9/domain/SampleLike.java

@@ -0,0 +1,26 @@
+package com.noriton.team9.domain;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Entity
+@Getter
+@Setter
+public class SampleLike {
+
+    @Id @GeneratedValue
+    @Column(name = "sampleLike_id")
+    private Long id;
+
+    @ManyToOne
+    @JoinColumn(name = "sample_id")
+    private Sample sample;
+
+    @ManyToOne
+    @JoinColumn(name = "member_id")
+    private Member member;
+
+}

src/main/java/com/noriton/team9/repository/SampleLikeRepository.java

@@ -0,0 +1,35 @@
+package com.noriton.team9.repository;
+
+import com.noriton.team9.domain.Orders;
+import com.noriton.team9.domain.SampleLike;
+import jakarta.persistence.EntityManager;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+
+@Repository
+@RequiredArgsConstructor
+public class SampleLikeRepository {
+
+    private final EntityManager em;
+    public SampleLike save(SampleLike sampleLike) {
+        em.persist(sampleLike);
+        return sampleLike;
+    }
+
+    public List<SampleLike> findBySampleId(Long sampleId){
+        return em.createQuery("select s from SampleLike s where s.sample.id = :id")
+                .setParameter("id", sampleId)
+                .getResultList();
+    }
+
+    public void deleteOne(Long sampleId, Long memberId) {
+        List<SampleLike> result = em.createQuery("delete from SampleLike s where s.sample.id = :sampleId and s.member.id = :memberId")
+                .setParameter("sampleId", sampleId)
+                .setParameter("memberId", memberId)
+                .getResultList();
+        em.remove(result.get(0));
+    }
+}

src/main/java/com/noriton/team9/request/LikeRequest.java

@@ -0,0 +1,10 @@
+package com.noriton.team9.request;
+
+import lombok.Data;
+
+@Data
+public class LikeRequest {
+
+    private Long memberId;
+    private Long sampleId;
+}

src/main/java/com/noriton/team9/service/SampleService.java

@@ -1,9 +1,11 @@
 package com.noriton.team9.service;
 
-import com.noriton.team9.domain.Designer;
-import com.noriton.team9.domain.Sample;
+import com.noriton.team9.domain.*;
 import com.noriton.team9.repository.DesignerRepository;
+import com.noriton.team9.repository.MemberRepository;
+import com.noriton.team9.repository.SampleLikeRepository;
 import com.noriton.team9.repository.SampleRepository;
+import com.noriton.team9.request.LikeRequest;
 import com.noriton.team9.request.SampleCreationRequest;
 import jakarta.persistence.EntityNotFoundException;
 import lombok.RequiredArgsConstructor;
@@ -19,6 +21,8 @@
 public class SampleService {
     public final SampleRepository sampleRepository;
     public final DesignerRepository designerRepository;
+    public final MemberRepository memberRepository;
+    private final SampleLikeRepository sampleLikeRepository;
 
     public List<Sample> readSamples(){
         return sampleRepository.findAll();
@@ -43,6 +47,7 @@ public Sample createSample(SampleCreationRequest sample){
         Sample sampleToCreate = new Sample();
         BeanUtils.copyProperties(sample, sampleToCreate);
         sampleToCreate.settingDesigner(designer.get());
+//        sampleToCreate.setLikeCount(0);
         return sampleRepository.save(sampleToCreate);
     }
 
@@ -53,4 +58,45 @@ public Sample createSample(SampleCreationRequest sample){
     public void deleteSample(Long sampleId){
         sampleRepository.deleteById(sampleId);
     }
+
+    /**
+     * 샘플 좋아요 누르기
+     * */
+    @Transactional
+    public Sample likeSample(LikeRequest request) {
+        Member member = memberRepository.findOne(request.getMemberId());
+        Optional<Sample> getSample = sampleRepository.findById(request.getSampleId());
+        Sample sample = getSample.get();
+
+//        sample.getLikedMembers().add(member);
+//        sample.setLikeCount(sample.getLikeCount() + 1);
+//        member.getLikedSamples().add(sample);
+//        memberRepository.save(member);
+        SampleLike sampleLike = new SampleLike();
+        sampleLike.setMember(member);
+        sampleLike.setSample(sample);
+        sampleLikeRepository.save(sampleLike);
+
+        List<SampleLike>  likeList = sampleLikeRepository.findBySampleId(request.getSampleId());
+        sample.setLikeCount(likeList.size());
+        return sample;
+    }
+
+    public Sample unlikeSample(LikeRequest request) {
+        Optional<Sample> getSample = sampleRepository.findById(request.getSampleId());
+        Sample sample = getSample.get();
+
+        List<SampleLike>  likeList = sampleLikeRepository.findBySampleId(request.getSampleId());
+        sample.setLikeCount(likeList.size());
+
+        sampleLikeRepository.deleteOne(request.getSampleId(), request.getMemberId());
+        sample.setLikeCount(sample.getLikeCount() - 1);
+        return sample;
+    }
+
+    public List<Sample> readSamplesByLike() {
+        List<Sample> list = sampleRepository.findAll();
+//        Collections.sort(list);
+        return list;
+    }
 }