using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Controls;

namespace Lib
{
    public class KinectStreamsFactory
    {
        private KinectManager _kinectManager;
        public KinectManager KinectManager {
            get { return _kinectManager; }
            private set { _kinectManager = value; }
        }

        private Dictionary<KinectStreams, Func<Canvas,KinectStream>> _streamFactory;
        public Dictionary<KinectStreams, Func<Canvas,KinectStream>> StreamFactory
        {
            get { return _streamFactory; }
            private set { _streamFactory = value; }
        }

        public KinectStreamsFactory(KinectManager kinect, Canvas skeletonCanvas = null)
        {
            _kinectManager = kinect;
            // Initialisation de la fabrique avec les fonctions de création pour chaque type de flux.
            StreamFactory = new Dictionary<KinectStreams, Func<Canvas,KinectStream>>
        {
            { KinectStreams.Color, (canvas) => new ColorImageStream(KinectManager) },
            { KinectStreams.Depth, (canvas) => new DepthImageStream(KinectManager) },
            { KinectStreams.IR, (canvas) => new InfraredImageStream(KinectManager) },
            { KinectStreams.ColorAndBody, (canvas) => new ColorAndBodyImageStream(KinectManager,skeletonCanvas) }
        };
        }

        public KinectStream this[KinectStreams stream, Canvas skeletonCanvas = null]
        {
            get
            {
                if (StreamFactory.ContainsKey(stream))
                {
                    return StreamFactory[stream](skeletonCanvas);
                }
                else
                {
                    throw new ArgumentException("Invalid stream type.");
                }
            }
        }
    }
}