Favorite.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 = "favorites", uniqueConstraints = @UniqueConstraint(columnNames = {"device_id", "item_name"}))
@Getter @Setter @NoArgsConstructor
public class Favorite {

    @Id
    private UUID id;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "device_id", nullable = false)
    private Device device;

    @Column(name = "item_name", nullable = false, length = 500)
    private String itemName;

    @Column(length = 10)
    private String emoji;

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

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