using Godot;
using Rokojori;
using System.Collections.Generic;
using System.Linq;

namespace Rokojori
{ 
  [Tool]
  [GlobalClass,Icon("res://addons/rokojori_action_library/Icons/UIText.svg")]
  public partial class UIText:Label,UIStylePropertyContainer, iLocalizable, UIHolderControl, IAssemblyReload
  {
    
    LocalizedString _locale;

    [Export]
    public LocalizedString locale
    {
      get => _locale;

      set { _locale = value; UpdateLocalization(); }
    }

    [Export]
    public bool refreshText 
    {
      get => false;
      set { if ( value ) UpdateLocalization(); UpdateFont(); }
    }

    [Export]
    public bool disableLocalization = false;

    public void UpdateLocalization()
    {
      if ( disableLocalization )
      {
        return;
      }

      Text = LocalizedString.Get( _locale );

    }

    public void OnAssemblyReloaded()
    {
      UpdateLocalization();
      UpdateFont();
    }

    
    [Export]
    public bool alwaysMinimumSize = true;

    UIStyle _parentStyle;
    [Export]
    public UIStyle parentStyle
    {
      get => _parentStyle;
      set { _parentStyle = value; UpdateFont(); }
    }

    Font _font;
    [ExportGroup( "Font" )]
    [Export]
    public Font font
    {
      get => _font;
      set { _font = value; UpdateFont(); }
    }

    [Export]
    public UINumber fontSize;
    [Export]
    public UIColor fontColor;

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

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

    [Export]
    public UINumber shadowOffsetX;
    [Export]
    public UINumber shadowOffsetY;

    [ExportGroup("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;


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

    
    [ExportGroup("Rotation & Scale")]
    [Export]
    public UINumber pivotX;
    [Export]
    public UINumber pivotY;

    [Export]
    public UINumber rotation;

    [Export]
    public UINumber scale;

    [Export]
    public UINumber scaleX;
    [Export]
    public UINumber scaleY;

    public Font GetFont()
    {
      return font;
    }

    void UpdateFont()
    {
      var resolvedFont = UIStyle.Font( this );

      if ( resolvedFont != null )
      {
        RemoveThemeFontOverride( "font" );
        AddThemeFontOverride( "font", resolvedFont );
      }

    }

    

    string hoverID = IDGenerator.GenerateID();
    
    public override void _Ready()
    {
      MouseEntered += ()=>
      {
        AddUISelectorFlag( UISelectorFlag.Hover, hoverID );
        
      };

      MouseExited += ()=>
      {
        RemoveUISelectorFlag( UISelectorFlag.Hover, hoverID );
      };
    }

    protected override void Dispose( bool disposing)
    {
      _selectorFlagReferenceCounter.Clear();
    }

    MapList<UISelectorFlag,string> _selectorFlagReferenceCounter = new MapList<UISelectorFlag, string>();

    public void AddUISelectorFlag( UISelectorFlag flag, string reference = "" )
    {
      SetSelectorFlagReference( flag, reference, true );
    }

    public void RemoveUISelectorFlag( UISelectorFlag flag, string reference = "" )
    {
      SetSelectorFlagReference( flag, reference, false );
    }

    void SetSelectorFlagReference( UISelectorFlag flag, string reference, bool enable )
    {
      if ( enable )
      {
        _selectorFlagReferenceCounter.AddIfNotPresent( flag, reference );
      }
      else
      {
        _selectorFlagReferenceCounter.Remove( flag );
      }

      _selectorFlags = _selectorFlagReferenceCounter.Keys.ToList();

      UISelector.UpdateParentUISelectorFlags( this );
    }
    
    List<UISelectorFlag> _selectorFlags = [];
    List<UISelectorFlag> _parentSelectorFlags = [];
    
    public List<UISelectorFlag> GetUISelectorFlags()
    {
      return _selectorFlags;
    }

    public List<UISelectorFlag> GetParentUISelectorFlags()
    {
      return _parentSelectorFlags;
    }

    public override void _GuiInput( InputEvent inputEvent )
    {
      if ( ! handleMouseEvents )
      {
        return;
      }

      if ( inputEvent is InputEventMouseButton mb )
      {
        if ( mb.Pressed )
        {
          if ( mb.ButtonIndex == MouseButton.Left )
          {
            Action.Trigger( onLeftClick );
          }

          if ( mb.ButtonIndex == MouseButton.Middle )
          {
            Action.Trigger( onMiddleClick );
          }

           if ( mb.ButtonIndex == MouseButton.Right )
          {
            Action.Trigger( onRightClick );
          }
        }
      }     
   
    }

 
    // public List<ActiveStyleTransition<UIColor,ColorPropertyName>> GetActiveShaderUIColorTransitions()
    // {
    //   return null;
    // }
  
    // public List<ActiveStyleTransition<UINumber,FloatPropertyName>> GetActiveShaderUINumberTransitions()
    // {
    //   return null;
    // }
    
    [ExportGroup("Transitions")]
    [Export]
    public TransitionSettingsAll transitionSettings;
    public TransitionSettingsAll GetTransitionSettingsAll()
    {
      return transitionSettings;
    }

    [Export]
    public UINumberTransition[] numberTransitions = new UINumberTransition[ 0 ];
    public UINumberTransition[] GetNumberTransitions()
    {
      return numberTransitions;
    }
    
    public List<ActiveStyleTransition<UINumber,UIStyleNumberPropertyAndName>> activeNumberTransitions = new List<ActiveStyleTransition<UINumber,UIStyleNumberPropertyAndName>>();
    public List<ActiveStyleTransition<UINumber,UIStyleNumberPropertyAndName>> GetActiveUINumberTransitions()
    {
      return activeNumberTransitions;
    }

    [Export]
    public UIColorTransition[] colorTransitions = new UIColorTransition[ 0 ];
    public UIColorTransition[] GetColorTransitions()
    {
      return colorTransitions;
    }
    
    public List<ActiveStyleTransition<UIColor,UIStyleColorPropertyAndName>> activeColorTransitions = new List<ActiveStyleTransition<UIColor,UIStyleColorPropertyAndName>>();
    public List<ActiveStyleTransition<UIColor,UIStyleColorPropertyAndName>> GetActiveUIColorTransitions()
    {
      return activeColorTransitions;
    }

    LabelSettings _labelSettings;

    

    public LabelSettings uiTextLabelSettings
    {
      get 
      {
        if ( _labelSettings == null )
        {
          _labelSettings = new LabelSettings();
        }

        LabelSettings = _labelSettings;
        return _labelSettings;
      }

      set 
      {
        _labelSettings = value.Duplicate() as LabelSettings;
        LabelSettings = _labelSettings;
      }
    }

    [ExportGroup("Events")]
    [Export]
    public bool handleMouseEvents = false;

    [Export]
    public Action onLeftClick;

    [Export]
    public Action onMiddleClick;

    [Export]
    public Action onRightClick;

    public UIStyle GetUIStyleParent()
    {
      return parentStyle;
    }

    public UIPosition GetUIPosition()
    {
      return position;
    }

    public UILineWrap GetUILineWrap()
    {
      return lineWrap;
    }

    public UILayout GetUILayout()
    {
      return UILayout.___;
    } 

    public ShaderUIColor[] GetShaderUIColors()
    {
      return null;
    }

    public ShaderUINumber[] GetShaderUINumbers()
    {
      return null;
    }

    

    public UINumber GetUIStyleNumberProperty( UIStyleNumberProperty property, string shaderPropertyName, UIStylePropertyContainer source )
    {
      switch ( property )
      {
        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;


        case UIStyleNumberProperty.Left:   return left;
        case UIStyleNumberProperty.Right:  return right;
        case UIStyleNumberProperty.Top:    return top;
        case UIStyleNumberProperty.Bottom: return bottom;

        case UIStyleNumberProperty.PivotX:   return pivotX;
        case UIStyleNumberProperty.PivotY:   return pivotY;
        case UIStyleNumberProperty.Rotation: return rotation;

        case UIStyleNumberProperty.Scale:    return scale;
        case UIStyleNumberProperty.ScaleX:   return scaleX;
        case UIStyleNumberProperty.ScaleY:   return scaleY;

        case UIStyleNumberProperty.FontSize: return fontSize;
        case UIStyleNumberProperty.FontOutlineSize: return outlineSize;
        case UIStyleNumberProperty.FontShadowSize: return shadowSize;
        case UIStyleNumberProperty.FontShadowOffsetX: return shadowOffsetX;
        case UIStyleNumberProperty.FontShadowOffsetY: return shadowOffsetY;
      }


      return null;
    }

    public void SetUIStyleNumberProperty( UIStyleNumberProperty property, UINumber number )
    {
      switch ( property )
      {
        case UIStyleNumberProperty.Left:   { left = number; } break;
        case UIStyleNumberProperty.Right:  { right = number; } break;
        case UIStyleNumberProperty.Top:    { top = number; } break;
        case UIStyleNumberProperty.Bottom: { bottom = number; } break;

        case UIStyleNumberProperty.Width:  { width = number; } break;
        case UIStyleNumberProperty.Height: { height = number; } break;



        case UIStyleNumberProperty.Margin:       { margin = number; } break;

        case UIStyleNumberProperty.MarginLeft:   { marginLeft = number; } break;
        case UIStyleNumberProperty.MarginRight:  { marginRight = number; } break;
        case UIStyleNumberProperty.MarginTop:    { marginTop = number; } break;
        case UIStyleNumberProperty.MarginBottom: { marginBottom = number; } break;

        case UIStyleNumberProperty.FontSize: { fontSize = number; } break;
        case UIStyleNumberProperty.FontOutlineSize: { outlineSize = number; } break;
        case UIStyleNumberProperty.FontShadowSize: { shadowSize = number; } break;
        case UIStyleNumberProperty.FontShadowOffsetX: { shadowOffsetX = number; } break;
        case UIStyleNumberProperty.FontShadowOffsetY: { shadowOffsetY = number; } break;

        case UIStyleNumberProperty.PivotX:   { pivotX = number; } break;
        case UIStyleNumberProperty.PivotY:   { pivotY = number; } break;
        case UIStyleNumberProperty.Rotation: { rotation = number; } break;

        case UIStyleNumberProperty.Scale:    { scale = number; } break;
        case UIStyleNumberProperty.ScaleX:   { scaleX = number; } break;
        case UIStyleNumberProperty.ScaleY:   { scaleY = number; } break;
      }
    }

    public Vector2 GetUISize()
    {
      return GetSize();
    }

    public UIColor GetUIStyleColorProperty( UIStyleColorProperty property, string shaderPropertyName, UIStylePropertyContainer source )
    {
      switch ( property )
      {
        case UIStyleColorProperty.FontColor:         return fontColor;
        case UIStyleColorProperty.FontOutlineColor:  return outlineColor;
        case UIStyleColorProperty.FontShadowColor:   return shadowColor;
      } 

      return null;
    }

     UI ui;

    public void SetUI( UI ui )
    {
      this.ui = ui;
    }

    public UI GetUI()
    {
      var ui = this.ui != null ? this.ui : Unique<UI>.Get();

      if ( ui == null )
      {
        ui = this.FindParentThatIs<UI>();

        if ( ui == null )
        {
          // this.LogInfo( "No UI in parents >", HierarchyName.Of( this ) );

          return null;
        }
      }

      return ui;
    }
  }
}