using System.Numerics;

namespace Dashboard.Events
{
    public enum UiEventType
    {
        None,
        AnimationTick,                  // Generic timer event.

        // Text input related events.
        KeyDown,                        // Keyboard key down.
        KeyUp,                          // Keyboard key up.
        TextInput,                      // Non-IME text event.
        TextEdit,                       // IME text event.
        TextCandidates,                 // IME text candidate list.
        TextLanguage,                   // Keyboard language changed event.

        // Mouse & touch related events
        MouseButtonDown,                // Mouse button down.
        MouseButtonUp,                  // Mouse button up.
        MouseMove,                      // Mouse moved.
        MouseScroll,                    // Mouse scrolled.

        // Reserved event names
        StylusEnter,                    // The stylus has entered the hover region.
        StylusLeave,                    // The stylus has left the hover region.
        StylusMove,                     // The stylus has moved.
        StylusDown,                     // The stylus is touching.
        StylusUp,                       // The stylus is no longer touching.
        StylusButtonUp,                 // Stylus button up.
        StylusButtonDown,               // Stylus button down.
        StylusAxes,                     // Extra stylus axes data.

        // Window & Control Events
        ControlInvalidateVisual,        // Force rendering the control again.
        ControlStateChanged,            // Control state changed.
        ControlMoved,                   // Control moved.
        ControlResized,                 // Control resized.
        ControlEnter,                   // The pointing device entered the control.
        ControlLeave,                   // The pointing device left the control.
        ControlFocusGet,                // The control acquired focus.
        ControlFocusLost,               // The control lost focus.
        WindowClose,                    // The window closed.
        
        UserRangeStart = 1 << 12,
    }

    public class UiEventArgs : EventArgs
    {
        public UiEventType Type { get; }

        public UiEventArgs(UiEventType type)
        {
            Type = type;
        }

        public static readonly UiEventArgs None = new UiEventArgs(UiEventType.None);
    }

    public class ControlMovedEventArgs : UiEventArgs
    {
        public Vector2 OldPosition { get; }
        public Vector2 NewPosition { get; }

        public ControlMovedEventArgs(Vector2 oldPosition, Vector2 newPosition) : base(UiEventType.ControlMoved)
        {
            OldPosition = oldPosition;
            NewPosition = newPosition;
        }
    }

    public class ControlResizedEventArgs
    {
        
    }
}