using System.Windows;
using System.Windows.Media;

namespace PamhagenSysCtrl.Helpers.Pipeline {
    public class ControlledValve : Valve {

        public int Nr { get; set; }
        public override string Label => $"V{Nr}";

        public readonly ISet<Path> LockedForPaths = new HashSet<Path>();
        public bool IsLocked => LockedForPaths.Any();
        public bool WantOpen => CallbackWantOpen(this);

        protected Func<Valve, bool> CallbackWantOpen;

        public ControlledValve(int nr, double x, double y, int orientation, Func<bool> cbOpen, Func<Valve, bool> cbWant) :
            base(x, y, orientation, cbOpen) {
            Nr = nr;
            CallbackWantOpen = cbWant;
        }

        public override void Update(bool isHovering, bool isPressed) {
            if (App.Plant?.ManualControlMode ?? false) {
                _text?.Visibility = Visibility.Visible;
                _triangles?.Fill =
                    !WantOpen && !IsOpen && !isHovering ? PamhagenBrushes.Red :
                    !WantOpen && !IsOpen ? PamhagenBrushes.Green :
                    !WantOpen && IsOpen ? PamhagenBrushes.DimRed :
                    WantOpen && !IsOpen ? PamhagenBrushes.DimGreen :
                    WantOpen && IsOpen && !isHovering ? PamhagenBrushes.Green :
                    WantOpen && IsOpen ? PamhagenBrushes.Red :
                    Highlight ?? (isHovering ? Brushes.LightGray : Brushes.DarkGray);
            } else {
                _text?.Visibility = isHovering ? Visibility.Visible : Visibility.Hidden;
                _triangles?.Fill =
                    IsLocked && !WantOpen && !IsOpen ? PamhagenBrushes.DimOrange :
                    IsLocked && !WantOpen && IsOpen ? PamhagenBrushes.Red :
                    IsLocked && WantOpen && !IsOpen ? PamhagenBrushes.Yellow :
                    IsLocked && WantOpen && IsOpen ? PamhagenBrushes.Green :
                    Highlight ?? (isHovering ? Brushes.LightGray : Brushes.DarkGray);
            }
        }
    }
}