using System;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace Webshop.Domain.Entities;

/// <summary>
/// Die einzelnen Artikel innerhalb einer Bestellung.
/// </summary>
public class OrderItem
{
    [Key]
    public Guid Id { get; set; }

    [Required]
    [ForeignKey(nameof(Order))]
    public Guid OrderId { get; set; }

    [ForeignKey(nameof(Product))]
    public Guid? ProductId { get; set; }

    [ForeignKey(nameof(ProductVariant))]
    public Guid? ProductVariantId { get; set; }

    [Required]
    [MaxLength(255)]
    public string ProductName { get; set; } // Snapshot

    [Required]
    [MaxLength(50)]
    public string ProductSKU { get; set; } // Snapshot

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

    // Precision wird via Fluent API konfiguriert
    [Required]
    public decimal UnitPrice { get; set; }

    [Required]
    public decimal TotalPrice { get; set; }

    // Navigation Properties
    public virtual Order Order { get; set; }
    public virtual Product? Product { get; set; }
    public virtual ProductVariant? ProductVariant { get; set; }
}