feat: 공모 상세 조회 기능 구현

backend/http/http-client.env.json

@@ -0,0 +1,5 @@
+{
+  "local": {
+    "base-url": "localhost:8080"
+  }
+}

backend/http/offering.http

@@ -0,0 +1,2 @@
+### 공동구매 상세 조회 API
+GET {{base-url}}/offerings/1

backend/src/main/java/com/zzang/chongdae/comment/repository/Comment.java → backend/src/main/java/com/zzang/chongdae/comment/repository/entity/CommentEntity.java

@@ -1,14 +1,15 @@
-package com.zzang.chongdae.comment.repository;
+package com.zzang.chongdae.comment.repository.entity;
 
-import com.zzang.chongdae.common.repository.BaseTimeEntity;
-import com.zzang.chongdae.member.repository.Member;
-import com.zzang.chongdae.offering.repository.Offering;
+import com.zzang.chongdae.common.repository.entity.BaseTimeEntity;
+import com.zzang.chongdae.member.repository.entity.MemberEntity;
+import com.zzang.chongdae.offering.repository.entity.OfferingEntity;
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
 import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
 import lombok.AccessLevel;
 import lombok.AllArgsConstructor;
 import lombok.EqualsAndHashCode;
@@ -19,18 +20,19 @@
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 @AllArgsConstructor
 @EqualsAndHashCode(of = "id", callSuper = false)
+@Table(name = "comment")
 @Entity
-public class Comment extends BaseTimeEntity {
+public class CommentEntity extends BaseTimeEntity {
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
     @ManyToOne
-    private Member member;
+    private MemberEntity member;
 
     @ManyToOne
-    private Offering offering;
+    private OfferingEntity offering;
 
     @Column(length = 80)
     private String content;

backend/src/main/java/com/zzang/chongdae/common/repository/BaseTimeEntity.java → backend/src/main/java/com/zzang/chongdae/common/repository/entity/BaseTimeEntity.java

@@ -1,4 +1,4 @@
-package com.zzang.chongdae.common.repository;
+package com.zzang.chongdae.common.repository.entity;
 
 import jakarta.persistence.Column;
 import jakarta.persistence.EntityListeners;
@@ -24,4 +24,4 @@ public abstract class BaseTimeEntity {
     @NotNull
     @Column
     private LocalDateTime updatedAt;
-}
+}

backend/src/main/java/com/zzang/chongdae/member/repository/Member.java → backend/src/main/java/com/zzang/chongdae/member/repository/entity/MemberEntity.java

@@ -1,11 +1,12 @@
-package com.zzang.chongdae.member.repository;
+package com.zzang.chongdae.member.repository.entity;
 
-import com.zzang.chongdae.common.repository.BaseTimeEntity;
+import com.zzang.chongdae.common.repository.entity.BaseTimeEntity;
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
+import jakarta.persistence.Table;
 import jakarta.validation.constraints.NotNull;
 import lombok.AccessLevel;
 import lombok.AllArgsConstructor;
@@ -17,8 +18,9 @@
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 @AllArgsConstructor
 @EqualsAndHashCode(of = "id", callSuper = false)
+@Table(name = "member")
 @Entity
-public class Member extends BaseTimeEntity {
+public class MemberEntity extends BaseTimeEntity {
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -27,4 +29,4 @@ public class Member extends BaseTimeEntity {
     @NotNull
     @Column(unique = true)
     private String nickname;
-}
+}

backend/src/main/java/com/zzang/chongdae/offering/controller/OfferingController.java

@@ -0,0 +1,22 @@
+package com.zzang.chongdae.offering.controller;
+
+import com.zzang.chongdae.offering.service.OfferingService;
+import com.zzang.chongdae.offering.service.dto.OfferingDetailResponse;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+
+@RequiredArgsConstructor
+@Controller
+public class OfferingController {
+
+    private final OfferingService offeringService;
+
+    @GetMapping("/offerings/{offering-id}")
+    public ResponseEntity<OfferingDetailResponse> getOfferingDetail(@PathVariable(value = "offering-id") Long id) {
+        OfferingDetailResponse response = offeringService.getOfferingDetail(id);
+        return ResponseEntity.ok(response);
+    }
+}

backend/src/main/java/com/zzang/chongdae/offering/domain/OfferingCondition.java

@@ -0,0 +1,22 @@
+package com.zzang.chongdae.offering.domain;
+
+public enum OfferingCondition {
+
+    FULL,
+    TIME_OUT,
+    CONFIRMED,
+    AVAILABLE;
+
+    public static OfferingCondition decideBy(OfferingStatus offeringStatus) {
+        if (offeringStatus.isCountFull()) {
+            return OfferingCondition.FULL;
+        }
+        if (offeringStatus.isDeadlineOver()) {
+            return OfferingCondition.TIME_OUT;
+        }
+        if (offeringStatus.isManualConfirmed() || offeringStatus.isAutoConfirmed()) {
+            return OfferingCondition.CONFIRMED;
+        }
+        return OfferingCondition.AVAILABLE;
+    }
+}

backend/src/main/java/com/zzang/chongdae/offering/domain/OfferingPrice.java

@@ -0,0 +1,16 @@
+package com.zzang.chongdae.offering.domain;
+
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import lombok.AllArgsConstructor;
+
+@AllArgsConstructor
+public class OfferingPrice {
+
+    private final Integer totalCount;
+    private final BigDecimal totalPrice;
+
+    public BigDecimal calculateDividedPrice() {
+        return totalPrice.divide(BigDecimal.valueOf(totalCount), RoundingMode.HALF_UP);
+    }
+}

backend/src/main/java/com/zzang/chongdae/offering/domain/OfferingStatus.java

@@ -0,0 +1,35 @@
+package com.zzang.chongdae.offering.domain;
+
+import java.time.LocalDateTime;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class OfferingStatus {
+
+    private final LocalDateTime deadline;
+    private final int totalCount;
+    private final boolean isManualConfirmed;
+    private final int currentCount;
+
+    public OfferingCondition decideOfferingCondition() {
+        return OfferingCondition.decideBy(this);
+    }
+
+    public boolean isCountFull() {
+        return this.totalCount == this.currentCount;
+    }
+
+    public boolean isDeadlineOver() {
+        return LocalDateTime.now().isAfter(this.deadline);
+    }
+
+    public boolean isAutoConfirmed() {
+        return isCountFull() && isDeadlineOver();
+    }
+
+    public boolean isManualConfirmed() {
+        return isManualConfirmed;
+    }
+}

backend/src/main/java/com/zzang/chongdae/offering/repository/OfferingRepository.java

@@ -0,0 +1,7 @@
+package com.zzang.chongdae.offering.repository;
+
+import com.zzang.chongdae.offering.repository.entity.OfferingEntity;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface OfferingRepository extends JpaRepository<OfferingEntity, Long> {
+}

backend/src/main/java/com/zzang/chongdae/offering/repository/Offering.java → backend/src/main/java/com/zzang/chongdae/offering/repository/entity/OfferingEntity.java

@@ -1,13 +1,16 @@
-package com.zzang.chongdae.offering.repository;
+package com.zzang.chongdae.offering.repository.entity;
 
-import com.zzang.chongdae.common.repository.BaseTimeEntity;
-import com.zzang.chongdae.member.repository.Member;
+import com.zzang.chongdae.common.repository.entity.BaseTimeEntity;
+import com.zzang.chongdae.member.repository.entity.MemberEntity;
+import com.zzang.chongdae.offering.domain.OfferingPrice;
+import com.zzang.chongdae.offering.domain.OfferingStatus;
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
 import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
 import jakarta.validation.constraints.NotNull;
 import java.math.BigDecimal;
 import java.time.LocalDateTime;
@@ -21,15 +24,16 @@
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 @AllArgsConstructor
 @EqualsAndHashCode(of = "id", callSuper = false)
+@Table(name = "offering")
 @Entity
-public class Offering extends BaseTimeEntity {
+public class OfferingEntity extends BaseTimeEntity {
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
     @ManyToOne
-    private Member member;
+    private MemberEntity member;
 
     @NotNull
     private String title;
@@ -60,4 +64,12 @@ public class Offering extends BaseTimeEntity {
 
     @NotNull
     private BigDecimal totalPrice;
+
+    public OfferingPrice toOfferingPrice() {
+        return new OfferingPrice(totalCount, totalPrice);
+    }
+
+    public OfferingStatus toOfferingStatus(int currentCount) {
+        return new OfferingStatus(deadline, totalCount, isManualConfirmed, currentCount);
+    }
 }

backend/src/main/java/com/zzang/chongdae/offering/service/OfferingService.java

@@ -0,0 +1,29 @@
+package com.zzang.chongdae.offering.service;
+
+import com.zzang.chongdae.offering.domain.OfferingPrice;
+import com.zzang.chongdae.offering.domain.OfferingStatus;
+import com.zzang.chongdae.offering.repository.OfferingRepository;
+import com.zzang.chongdae.offering.repository.entity.OfferingEntity;
+import com.zzang.chongdae.offering.service.dto.OfferingDetailResponse;
+import com.zzang.chongdae.offeringmember.repository.OfferingMemberRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@RequiredArgsConstructor
+@Service
+public class OfferingService {
+
+    private final OfferingRepository offeringRepository;
+    private final OfferingMemberRepository offeringMemberRepository;
+
+    public OfferingDetailResponse getOfferingDetail(Long id) {
+        OfferingEntity offering = offeringRepository.findById(id)
+                .orElseThrow(); // TODO: 예외 처리하기
+
+        OfferingPrice offeringPrice = offering.toOfferingPrice();
+        int currentCount = offeringMemberRepository.countByOffering(offering);
+        OfferingStatus offeringStatus = offering.toOfferingStatus(currentCount);
+
+        return new OfferingDetailResponse(offering, offeringPrice, offeringStatus);
+    }
+}

backend/src/main/java/com/zzang/chongdae/offering/service/dto/OfferingDetailResponse.java

@@ -0,0 +1,42 @@
+package com.zzang.chongdae.offering.service.dto;
+
+import com.zzang.chongdae.offering.domain.OfferingCondition;
+import com.zzang.chongdae.offering.domain.OfferingPrice;
+import com.zzang.chongdae.offering.domain.OfferingStatus;
+import com.zzang.chongdae.offering.repository.entity.OfferingEntity;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+public record OfferingDetailResponse(Long id,
+                                     String title,
+                                     String nickname,
+                                     String productUrl,
+                                     String meetingAddress,
+                                     String meetingAddressDetail,
+                                     String description,
+                                     LocalDateTime deadline,
+                                     Integer currentCount,
+                                     Integer totalCount,
+                                     String thumbnailUrl,
+                                     BigDecimal dividedPrice,
+                                     BigDecimal totalPrice,
+                                     OfferingCondition status) {
+
+    public OfferingDetailResponse(OfferingEntity offering, OfferingPrice offeringPrice, OfferingStatus offeringStatus) {
+        this(offering.getId(),
+                offering.getTitle(),
+                offering.getMember().getNickname(),
+                offering.getProductUrl(),
+                offering.getMeetingAddress(),
+                offering.getMeetingAddressDetail(),
+                offering.getDescription(),
+                offering.getDeadline(),
+                offeringStatus.getCurrentCount(),
+                offering.getTotalCount(),
+                offering.getThumbnailUrl(),
+                offeringPrice.calculateDividedPrice(),
+                offering.getTotalPrice(),
+                offeringStatus.decideOfferingCondition()
+        );
+    }
+}

backend/src/main/java/com/zzang/chongdae/offeringmember/domain/OfferingMemberRole.java

@@ -0,0 +1,7 @@
+package com.zzang.chongdae.offeringmember.domain;
+
+public enum OfferingMemberRole {
+
+    PROPOSER,
+    PARTICIPANT; // TODO: entity 패키지와 domain 패키지 중 위치 고민하기 (feat. vo)
+}

backend/src/main/java/com/zzang/chongdae/offeringmember/repository/OfferingMemberRepository.java

@@ -0,0 +1,10 @@
+package com.zzang.chongdae.offeringmember.repository;
+
+import com.zzang.chongdae.offering.repository.entity.OfferingEntity;
+import com.zzang.chongdae.offeringmember.repository.entity.OfferingMemberEntity;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface OfferingMemberRepository extends JpaRepository<OfferingMemberEntity, Long> {
+
+    int countByOffering(OfferingEntity offering);
+}