using Godot;
using Rokojori;
 
namespace Rokojori
{ 

  [Tool]
  [GlobalClass] 
  public partial class UIStyle:Resource, UIStylePropertyContainer
  {
    [Export]
    public UIStyle parentStyle;

    [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( "Font" )]
    [Export]
    public Font font;
    [Export]
    public UINumber fontSize;
    [Export]
    public UIColor fontColor;

    [Export]
    public UINumber outlineSize;
    [Export]
    public UIColor outlineColor;

    [Export]
    public UINumber shadowSize;
    [Export]
    public UIColor shadowColor;

    [ExportCategory( "Position" )]
    [Export]
    public UIPosition position;
    [Export]
    public UINumber left;
    [Export]
    public UINumber top;
    [Export]
    public UINumber right;
    [Export]
    public UINumber bottom;
   
    public UIStyle GetUIStyleParent()
    {
      return parentStyle;
    }

    public UIPosition GetUIPosition()
    {
      return position;
    }

    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.ElementSpacing: return elementSpacing;
        case UIStyleNumberProperty.LineSpacing:    return lineSpacing;


        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 static UINumber GetReferenceableNumberProperty( UIStylePropertyContainer container, UIStyleNumberProperty property )
    {
      if ( container == null )
      {
        return null;
      }

      var ownProperty = container.GetUIStyleNumberProperty( property );

      if ( ownProperty != null )
      {
        return ownProperty;
      }

      var style = container.GetUIStyleParent();

      return GetReferenceableNumberProperty( style, property );
    } 

    public static UIPosition Position( UIStylePropertyContainer container )
    {
      var ownProperty = container.GetUIPosition();

      if ( ownProperty != UIPosition.___ )
      {
        return ownProperty;
      }

      return container.GetUIPosition();
    }

    public static UINumber Width( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.Width );
    }

    public static UINumber Height( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.Height );
    }

    public static UINumber Left( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.Left );
    }

    public static UINumber Right( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.Right );
    }

    public static UINumber Top( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.Top );
    }

    public static UINumber Bottom( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.Bottom );
    }
    
    public static UINumber Margin( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.Margin );
    }

    public static UINumber MarginLeft( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.MarginLeft );
    }

    public static UINumber MarginRight( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.MarginRight );
    }

    public static UINumber MarginTop( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.MarginTop );
    }

    public static UINumber MarginBottom( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.MarginBottom );
    }

    public static UINumber PivotX( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.PivotX );
    }

    public static UINumber PivotY( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.PivotY );
    }

    public static UINumber Rotation( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.Rotation );
    }
 
    public static UINumber Scale( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.Scale );
    }

    public static UINumber ScaleX( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.ScaleX );
    }

    public static UINumber ScaleY( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.ScaleY );
    }

    public static UINumber ElementSpacing( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.ElementSpacing );
    }

    public static UINumber LineSpacing( UIStylePropertyContainer container )
    {
      return GetReferenceableNumberProperty( container, UIStyleNumberProperty.LineSpacing );
    }

  }

}