using System.ComponentModel.DataAnnotations.Schema;

using System.ComponentModel.DataAnnotations;

namespace Webshop.Domain.Entities;

/// <summary>
/// 1. Das zentrale Modell für deine Verkaufsartikel.
/// </summary>
public class Product
{
    [Key]
    public Guid Id { get; set; }

    [Required]
    [MaxLength(255)]
    public string Name { get; set; }

    [MaxLength(4000)]
    public string? Description { get; set; }

    [MaxLength(500)]
    public string? ShortDescription { get; set; }

    // Unique-Constraint wird typischerweise via Fluent API konfiguriert:
    // modelBuilder.Entity<Product>().HasIndex(p => p.SKU).IsUnique();
    [Required]
    [MaxLength(50)]
    public string SKU { get; set; }

    // Precision wird typischerweise via Fluent API konfiguriert:
    // modelBuilder.Entity<Product>().Property(p => p.Price).HasPrecision(18, 2);
    [Required]
    public decimal Price { get; set; }

    // modelBuilder.Entity<Product>().Property(p => p.OldPrice).HasPrecision(18, 2);
    public decimal? OldPrice { get; set; }

    [Required]
    public bool IsActive { get; set; }

    [Required]
    public bool IsInStock { get; set; }

    [Required]
    public int StockQuantity { get; set; }

    // modelBuilder.Entity<Product>().Property(p => p.Weight).HasPrecision(18, 3);
    public decimal? Weight { get; set; }

    // modelBuilder.Entity<Product>().Property(p => p.Width).HasPrecision(18, 2);
    public decimal? Width { get; set; }

    // modelBuilder.Entity<Product>().Property(p => p.Height).HasPrecision(18, 2);
    public decimal? Height { get; set; }

    // modelBuilder.Entity<Product>().Property(p => p.Length).HasPrecision(18, 2);
    public decimal? Length { get; set; }

    [MaxLength(2000)]
    public string? ImageUrl { get; set; }

    // Unique-Constraint wird typischerweise via Fluent API konfiguriert:
    // modelBuilder.Entity<Product>().HasIndex(p => p.Slug).IsUnique();
    [Required]
    [MaxLength(255)]
    public string Slug { get; set; }

    [Required]
    public DateTimeOffset CreatedDate { get; set; }

    public DateTimeOffset? LastModifiedDate { get; set; }

    [ForeignKey(nameof(Supplier))]
    public Guid? SupplierId { get; set; }

    // modelBuilder.Entity<Product>().Property(p => p.PurchasePrice).HasPrecision(18, 2);
    public decimal? PurchasePrice { get; set; }

    // Navigation Properties
    public virtual Supplier? Supplier { get; set; }
    public virtual ICollection<ProductVariant> Variants { get; set; } = new List<ProductVariant>();
    public virtual ICollection<Review> Reviews { get; set; } = new List<Review>();
    public virtual ICollection<ProductDiscount> ProductDiscounts { get; set; } = new List<ProductDiscount>();
    public virtual ICollection<ProductCategory> ProductCategories { get; set; } = new List<ProductCategory>();
}