Device.java

package com.oliwier.listmebackend.domain.model;

import jakarta.persistence.*;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;

import java.time.Instant;
import java.util.UUID;

@Entity
@Table(name = "devices")
@Getter @Setter @NoArgsConstructor
public class Device {

    @Id
    private UUID id;

    @Column(name = "display_name", length = 100)
    private String displayName;

    @Column(name = "profile_picture", columnDefinition = "TEXT")
    private String profilePicture;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "user_id")
    private User user;

    @Column(name = "created_at", nullable = false, updatable = false)
    private Instant createdAt;

    public Device(UUID id) {
        this.id = id;
        this.createdAt = Instant.now();
    }

    @PrePersist
    void prePersist() {
        if (createdAt == null) createdAt = Instant.now();
    }
}