OpenIsle/backend/src/main/java/com/openisle/model/Activity.java

package com.openisle.model;

import jakarta.persistence.*;
import java.time.LocalDateTime;
import java.util.HashSet;
import java.util.Set;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import org.hibernate.annotations.CreationTimestamp;

/** Generic activity entity. */
@Entity
@Getter
@Setter
@NoArgsConstructor
@Table(name = "activities")
public class Activity {

  @Id
  @GeneratedValue(strategy = GenerationType.IDENTITY)
  private Long id;

  @Column(nullable = false)
  private String title;

  private String icon;

  private String content;

  @Column(name = "start_time", nullable = false)
  @CreationTimestamp
  private LocalDateTime startTime;

  @Column(name = "end_time")
  private LocalDateTime endTime;

  @Enumerated(EnumType.STRING)
  @Column(nullable = false)
  private ActivityType type = ActivityType.NORMAL;

  @ManyToMany(fetch = FetchType.LAZY)
  @JoinTable(
    name = "activity_participants",
    joinColumns = @JoinColumn(name = "activity_id"),
    inverseJoinColumns = @JoinColumn(name = "user_id")
  )
  private Set<User> participants = new HashSet<>();

  @Column(nullable = false)
  private boolean ended = false;
}