package com.nebula.erp.product.model;

import com.fasterxml.jackson.annotation.JsonIgnore;
import jakarta.persistence.*;
import lombok.Data;
import lombok.Getter;
import lombok.Setter;
import java.math.BigDecimal;
import java.time.Instant;
import java.util.ArrayList;
import java.util.List;

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

    @Column(nullable = false)
    private String code;

    @Column(nullable = false)
    private String name;

    private String description;

    @ManyToOne
    @JoinColumn(name = "brand_id")
    private Brand brand;

    @ManyToOne
    @JoinColumn(name = "category_id")
    private Category category;

    @Column(name = "hsn_code")
    private String hsn_code;

    @OneToMany(mappedBy = "product", cascade = CascadeType.ALL, fetch = FetchType.LAZY, orphanRemoval = true)
    @JsonIgnore // Prevents infinite recursion
    private List<Image> images = new ArrayList<>();

    private String form;

    private String dosage;

    private String unit_of_measurement;

    private Integer quantity;

    @Column(nullable = false)
    private BigDecimal purchase_price;

    @Column(nullable = false)
    private BigDecimal selling_price;

    @Column(nullable = false)
    private BigDecimal mrp;

    private Integer min_stock;

    @ManyToOne
    @JoinColumn(name = "tax_id")
    private Tax tax;

    private String remarks;

    private String created_by;

    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() {
        created_at = Instant.now();
        updated_at = Instant.now();
    }

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