IProductPartLink.cs

// Copyright (c) 2023, Phoenix Contact GmbH & Co. KG
// Licensed under the Apache License, Version 2.0

using System.Collections.Generic;
using System.Linq;

namespace Moryx.AbstractionLayer.Products
{
    /// <summary>
    /// Base interface for the link
    /// </summary>
    public interface IProductPartLink : IPersistentObject
    {
        /// <summary>
        /// Generic access to the product of this part link
        /// </summary>
        IProductType Product { get; set; }

        /// <summary>
        /// Create single product instance for this part
        /// </summary>
        ProductInstance Instantiate();
    }

    /// <summary>
    /// API for part wrapper
    /// </summary>
    /// <typeparam name="TProduct"></typeparam>
    public interface IProductPartLink<TProduct> : IProductPartLink
        where TProduct : IProductType
    {
        /// <summary>
        /// Typed product of this part
        /// </summary>
        new TProduct Product { get; set; }
    }

    /// <summary>
    /// Extension to instantiate instance collection from product type parts collection
    /// </summary>
    public static class PartLinkExtension
    {
        /// <summary>
        /// Instantiate product instance collection
        /// </summary>
        public static List<TInstance> Instantiate<TInstance>(this IEnumerable<IProductPartLink> parts)
            where TInstance : ProductInstance
        {
            return parts.Select(p => (TInstance)p.Instantiate()).ToList();
        }
    }
}