Controller.cs

using System;
using System.Threading.Tasks;
using Windows.Devices.Gpio;
using Waher.Runtime.Language;
using Waher.Things.Metering;
using Waher.Things.Metering.NodeTypes;
 
namespace Waher.Things.Gpio
{
    public class Controller : MeteringNode
    {
        private readonly GpioController controller;
 
        public Controller()
            : base()
        {
            this.controller = GpioController.GetDefault();
        }
 
        public GpioController GpioController => this.controller;
 
        public override Task<bool> AcceptsChildAsync(INode Child)
        {
            return Task.FromResult<bool>(Child is Pin);
        }
 
        public override async Task<bool> AcceptsParentAsync(INode Parent)
        {
            return (Parent is Root) && !((await GpioController.GetDefaultAsync() is null));
        }
 
        public override Task<string> GetTypeNameAsync(Language Language)
        {
            return Language.GetStringAsync(typeof(Controller), 1, "General Purpose I/O");
        }
    }
}