namespace Dashboard.Events
{
    [Flags]
    public enum ModifierKeys
    {
        None = 0,
        LeftBitPos  = 8,
        RightBitPos = 16,

        Shift   = (1 << 0),
        Control = (1 << 1),
        Alt     = (1 << 2),
        Meta    = (1 << 3),

        NumLock    = (1 << 4),
        CapsLock   = (1 << 5),
        ScrollLock = (1 << 6),

        LeftShift    = (Shift   << LeftBitPos),
        LeftControl  = (Control << LeftBitPos),
        LeftAlt      = (Alt     << LeftBitPos),
        LeftMeta     = (Meta    << LeftBitPos),

        RightShift   = (Shift   << RightBitPos),
        RightControl = (Control << RightBitPos),
        RightAlt     = (Alt     << RightBitPos),
        RightMeta    = (Meta    << RightBitPos),
    }

    public enum KeyCode
    {
        // TODO:
    }

    public enum ScanCode
    {
        // TODO:
    }

    public class KeyboardButtonEventArgs(KeyCode keyCode, ScanCode scanCode, ModifierKeys modifierKeys, bool up)
        : UiEventArgs(up ? UiEventType.KeyUp : UiEventType.KeyDown)
    {
        public KeyCode KeyCode { get; } = keyCode;
        public ScanCode ScanCode { get; } = scanCode;
        public ModifierKeys ModifierKeys { get; } = modifierKeys;
    }

    public class TextInputEventArgs(string text) : UiEventArgs(UiEventType.TextEdit)
    {
        public string Text { get; } = text;
    }

    public class TextEditEventArgs(string candidate, int cursor, int length) : UiEventArgs(UiEventType.TextEdit)
    {
        public string Candidate { get; } = candidate;
        public int Cursor { get; } = cursor;
        public int Length { get; } = length;
    }
}