package com.nebula.erp.inventory.model;

import jakarta.persistence.*;
import lombok.Getter;
import lombok.Setter;
import java.time.Instant;

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

    @Column(nullable = false)
    private Long product_id;

    private Long batch_id;

    @Column(nullable = false)
    private Integer quantity;

    @Column(nullable = false)
    private String type;

    @Column(nullable = false)
    private String reason;

    @Column(nullable = false)
    private String tenant;

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

    @Column(nullable = false)
    private Instant updated_at;

    private Instant deleted_at;

    @PrePersist
    protected void onCreate() {
        Instant now = Instant.now();
        created_at = now;
        updated_at = now;
    }

    @PreUpdate
    protected void onUpdate() {
        updated_at = Instant.now();
    }
}