feat(party): Party 엔티디 구현

Author: seopgyu

src/main/java/com/back/matchduo/domain/party/entity/Party.java

@@ -1,10 +1,52 @@
 package com.back.matchduo.domain.party.entity;
 
 import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDateTime;
 
 @Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@Table(name = "party")
 public class Party {
+
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "party_id")
     private Long id;
+
+    @Column(name = "post_id", nullable = false)
+    private Long postId;
+
+    @Column(name = "leader_id", nullable = false)
+    private Long leaderId;
+
+    @Enumerated(EnumType.STRING)
+    @Column(nullable = false)
+    private PartyStatus status;
+
+    @Column(name = "created_at", nullable = false)
+    private LocalDateTime createdAt;
+
+    @Column(name = "closed_at", nullable = false)
+    private LocalDateTime closedAt;
+
+
+    public Party(Long postId, Long leaderId) {
+        this.postId = postId;
+        this.leaderId = leaderId;
+        this.status = PartyStatus.ACTIVE;
+        this.createdAt = LocalDateTime.now();
+        this.closedAt = this.createdAt.plusHours(6);
+    }
+
+
+    public void closeParty() {
+        if (this.status == PartyStatus.ACTIVE) {
+            this.status = PartyStatus.CLOSED;
+        }
+    }
 }

src/main/java/com/back/matchduo/domain/party/entity/PartyMember.java

@@ -0,0 +1,65 @@
+package com.back.matchduo.domain.party.entity;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDateTime;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@Table(
+        // 파티 중복 참여 방지 unique
+        name = "party_member",
+        uniqueConstraints = {
+                @UniqueConstraint(
+                        name = "uk_party_member_user",
+                        columnNames = {"party_id", "user_id"}
+                )
+        }
+)
+public class PartyMember {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "party_member_id")
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "party_id", nullable = false)
+    private Party party;
+
+    @Column(name = "user_id", nullable = false)
+    private Long userId;
+
+    @Enumerated(EnumType.STRING)
+    @Column(nullable = false)
+    private PartyMemberRole role; // LEADER, MEMBER
+
+    @Enumerated(EnumType.STRING)
+    @Column(nullable = false)
+    private PartyMemberState state; // JOINED, LEFT
+
+    @Column(name = "joined_at", nullable = false)
+    private LocalDateTime joinedAt;
+
+    @Column(name = "left_at")
+    private LocalDateTime leftAt;
+
+
+    public PartyMember(Party party, Long userId, PartyMemberRole role) {
+        this.party = party;
+        this.userId = userId;
+        this.role = role;
+        this.state = PartyMemberState.JOINED;
+        this.joinedAt = LocalDateTime.now();
+    }
+
+
+    public void leaveParty() {
+        this.state = PartyMemberState.LEFT;
+        this.leftAt = LocalDateTime.now();
+    }
+}

src/main/java/com/back/matchduo/domain/party/entity/PartyMemberRole.java

@@ -0,0 +1,6 @@
+package com.back.matchduo.domain.party.entity;
+
+public enum PartyMemberRole {
+     LEADER, // 파티장
+     MEMBER // 파티원
+ }

src/main/java/com/back/matchduo/domain/party/entity/PartyMemberState.java

@@ -0,0 +1,6 @@
+package com.back.matchduo.domain.party.entity;
+
+public enum PartyMemberState {
+    JOINED, // 참여 중
+    LEFT,   // 나감 (탈퇴/강퇴)
+}

src/main/java/com/back/matchduo/domain/party/entity/PartyStatus.java

@@ -0,0 +1,6 @@
+package com.back.matchduo.domain.party.entity;
+
+public enum PartyStatus {
+     ACTIVE, // 모집완료 시
+    CLOSED // 모집중 , 게임완료일 시
+}