using Godot;
 
namespace Rokojori
{ 
  [Tool]
  [GlobalClass] 
  public partial class UIRegion : Control, UIStylePropertyContainer
  {   
    [Export]
    public UIStyle parent;

    [ExportCategory("Layout")]
    [Export]
    public UILayout layout;        

    [Export]
    public UINumber horizontalAlignment;
    [Export]
    public UINumber verticalAlignment;

    [Export]
    public UINumber elementSpacing;
    [Export]
    public UINumber lineSpacing;

    
    [ExportCategory("Size & Margins")]
    [Export]
    public UINumber width;
    [Export]
    public UINumber height;


    [Export] 
    public UINumber margin;

    [Export] 
    public UINumber marginLeft;
    [Export] 
    public UINumber marginTop;
    [Export] 
    public UINumber marginRight;
    [Export] 
    public UINumber marginBottom;

    [ExportCategory("Position")]
    [Export]
    public UIPosition position;
    [Export]
    public UINumber left;
    [Export]
    public UINumber top;
    [Export]
    public UINumber right;
    [Export]
    public UINumber bottom;


    public UINumber GetUIStyleNumberProperty( UIStyleNumberProperty property )
    {
      switch ( property )
      {
        case UIStyleNumberProperty.Left:   return left;
        case UIStyleNumberProperty.Right:  return right;
        case UIStyleNumberProperty.Top:    return top;
        case UIStyleNumberProperty.Bottom: return bottom;

        case UIStyleNumberProperty.Width:  return width;
        case UIStyleNumberProperty.Height: return height;

        case UIStyleNumberProperty.Margin:       return margin;

        case UIStyleNumberProperty.MarginLeft:   return marginLeft;
        case UIStyleNumberProperty.MarginRight:  return marginRight;
        case UIStyleNumberProperty.MarginTop:    return marginTop;
        case UIStyleNumberProperty.MarginBottom: return marginBottom;
      }

      return null;
    }


    public void Layout()
    {
      switch ( layout )
      {
        case UILayout.Flow_Left_Top: UIFlowLayout.Apply( this ); break;
      }
    }

   
  }
}