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

package com.openisle.model;

import jakarta.persistence.*;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import org.hibernate.annotations.CreationTimestamp;

import java.time.LocalDateTime;

@Entity
@Getter
@Setter
@NoArgsConstructor
@Table(name = "messages")
public class Message {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @ManyToOne(optional = false, fetch = FetchType.LAZY)
    @JoinColumn(name = "conversation_id")
    private MessageConversation conversation;

    @ManyToOne(optional = false, fetch = FetchType.LAZY)
    @JoinColumn(name = "sender_id")
    private User sender;

    @Column(nullable = false, columnDefinition = "TEXT")
    private String content;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "reply_to_id")
    private Message replyTo;

    @CreationTimestamp
    @Column(nullable = false, updatable = false)
    private LocalDateTime createdAt;
}