CustomerBasket

Domain entity representing a customer's basket with basket items; ensures valid ID and non-empty items, and supports replacing all items via Update.

[method: JsonConstructor]
public sealed class CustomerBasket() : AuditableEntity<string>
{
    private readonly List<BasketItem> _basketItems = [];

    public CustomerBasket(
        [StringSyntax(StringSyntaxAttribute.GuidFormat)] string id,
        IReadOnlyList<BasketItem> items
    )
        : this()
    {
        Id = id ?? throw new BasketDomainException("Customer ID cannot be null.");
        _basketItems =
            items.Count > 0
                ? [.. items]
                : throw new BasketDomainException("Basket must contain at least one item.");
    }

    public IReadOnlyCollection<BasketItem> Items => _basketItems.AsReadOnly();

    /// <summary>
    ///     Updates the customer basket by replacing all existing items with the provided items.
    /// </summary>
    /// <p

... (truncated -- full source via MCP)