littleshop/LittleShop/Models/Product.cs

using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using LittleShop.Enums;

namespace LittleShop.Models;

public class Product
{
    [Key]
    public Guid Id { get; set; }
    
    [Required]
    [StringLength(200)]
    public string Name { get; set; } = string.Empty;
    
    public string Description { get; set; } = string.Empty;
    
    [Column(TypeName = "decimal(18,2)")]
    public decimal Price { get; set; }
    
    [Column(TypeName = "decimal(18,4)")]
    public decimal Weight { get; set; }
    
    public ProductWeightUnit WeightUnit { get; set; } = ProductWeightUnit.Kilogram;
    
    public int StockQuantity { get; set; } = 0;

    public Guid CategoryId { get; set; }

    public Guid? VariantCollectionId { get; set; }

    public string? VariantsJson { get; set; }

    public bool IsActive { get; set; } = true;
    
    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
    
    public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;
    
    // Navigation properties
    public virtual Category Category { get; set; } = null!;
    public virtual VariantCollection? VariantCollection { get; set; }
    public virtual ICollection<ProductPhoto> Photos { get; set; } = new List<ProductPhoto>();
    public virtual ICollection<ProductMultiBuy> MultiBuys { get; set; } = new List<ProductMultiBuy>();
    public virtual ICollection<ProductVariant> Variants { get; set; } = new List<ProductVariant>();
    public virtual ICollection<SalesLedger> SalesLedgers { get; set; } = new List<SalesLedger>();
    public virtual ICollection<BotActivity> Activities { get; set; } = new List<BotActivity>();
    public virtual ICollection<OrderItem> OrderItems { get; set; } = new List<OrderItem>();
    public virtual ICollection<Review> Reviews { get; set; } = new List<Review>();
}