using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Shapes;

namespace PamhagenSysCtrl.Helpers.Pipeline {
    public class Pipe : IEdge {

        public INode Start { get; set; }
        public INode End { get; set; }
        public bool IsTwoWay { get; set; }
        public bool Orientation { get; set; }
        public Brush? Highlight { get; set; }

        private Polyline? _outer;
        private Polyline? _inner;

        public Pipe(INode start, INode end, bool orientation = false, bool twoWay = false) {
            Start = start;
            End = end;
            Orientation = orientation;
            IsTwoWay = twoWay;
        }

        public void Draw(Canvas canvas) {
            var x1 = Start.CenterX;
            var y1 = Start.CenterY;
            var x2 = Orientation ? Start.CenterX : End.CenterX;
            var y2 = Orientation ? End.CenterY : Start.CenterY;
            var x3 = End.CenterX;
            var y3 = End.CenterY;
            _outer = new Polyline() {
                Points = [new(x1, y1), new(x2, y2), new(x3, y3)],
                StrokeThickness = 10,
                Stroke = Brushes.Black,
                StrokeStartLineCap = PenLineCap.Round,
                StrokeEndLineCap = PenLineCap.Round,
                StrokeLineJoin = PenLineJoin.Round,
            };
            _inner = new Polyline() {
                Points = [new(x1, y1), new(x2, y2), new(x3, y3)],
                StrokeThickness = 6,
                Stroke = Brushes.DarkGray,
                StrokeStartLineCap = PenLineCap.Round,
                StrokeEndLineCap = PenLineCap.Round,
                StrokeLineJoin = PenLineJoin.Round,
            };
            canvas.Children.Add(_outer);
            canvas.Children.Add(_inner);
        }

        public void Update() {
            _inner?.Stroke = Highlight ?? Brushes.DarkGray;
        }
    }
}