GroupReference.cs

using System.Collections.Generic;
using System.Threading.Tasks;
using Waher.Groups;
using Waher.Runtime.Collections;
using Waher.Runtime.Language;
using Waher.Things;
using Waher.Things.Attributes;
 
namespace Waher.Jobs.Metering.NodeTypes
{
    public class GroupReference : ReferenceNode, IGroup
    {
        public GroupReference()
            : base()
        {
        }
 
        [Header(29, "Group ID:", 20)]
        [Page(66, "Job", 0)]
        [ToolTip(30, "ID of the group being referenced.")]
        [Required]
        public string ReferenceNodeId { get; set; }
 
        public override Task<string> GetTypeNameAsync(Language Language)
        {
            return Language.GetStringAsync(typeof(GroupReference), 31, "Group Reference");
        }
 
        public override async Task FindNodes<T>(ChunkedList<T> Nodes)
        {
            INode Node = await GroupSource.GetNode(this.ReferenceNodeId);
 
            if (Node is null)
            {
                await this.LogErrorAsync("InvalidReference", "Group not found.");
                return;
            }
 
            if (Node is T TypedNode)
                Nodes.Add(TypedNode);
            else
            {
                ChunkedList<INode> CheckChildren = new ChunkedList<INode>() { Node };
 
                while (CheckChildren.HasFirstItem)
                {
                    Node = CheckChildren.RemoveFirst();
                    IEnumerable<INode> Children = await Node.ChildNodes;
 
                    if (!(Children is null))
                    {
                        foreach (INode Child in Children)
                        {
                            if (Child is T TypedChild)
                                Nodes.Add(TypedChild);
                            else
                                CheckChildren.Add(Child);
                        }
                    }
                }
            }
        }
    }
}