using Godot;
using Godot.Collections;
using System.Collections.Generic;

namespace Rokojori
{  
  [Tool]
  [GlobalClass]
  public partial class RadialBlur2:_XX_CompositorEffectGraph
  {
    public RadialBlur2()
    {
      Initialize();
    }

    [Export]
    public Vector2 center = new Vector2( 0.5f, 0.5f );

    [Export]
    public float radius = 0.5f;

    [Export]
    public float intensity = 0.5f;

    [Export]
    public float samples = 16f;


    CEG_ScreenColorTexure screenColorTexture;
    CEG_BufferTexture bufferTexture;    

    CEG_Copy copy;
    CEG_RadialBlur radialBlur;
    

    void Initialize()
    { 
      CreateGraphNodes();
      ConnectGraph();
      AssignData();
    }

    void CreateGraphNodes()
    { 
      screenColorTexture = new CEG_ScreenColorTexure( this );
      bufferTexture = CEG_BufferTexture.ScreenSize( this );

      copy = new CEG_Copy( this );
      radialBlur = new CEG_RadialBlur( this );

      _processors = new List<CompositorEffectGraphProcessor>{ screenColorTexture, bufferTexture, copy, radialBlur };
      _processors.ForEach( p => p.Initialize() );
    }

    void ConnectGraph()
    {
      copy.SetTextureSlotInputs( screenColorTexture, bufferTexture );
      radialBlur.SetTextureSlotInputs( copy.output, copy.input ); 


      SetProcessOrder( 
        screenColorTexture, bufferTexture, 
        copy, radialBlur 
      );
    }
    
    void AssignData()
    {
      radialBlur.constants.Set(
        center, 
        radius, 
        intensity,
        samples,
        Vector2.Zero
      );
    }

    protected override void OnPreProcess()
    {
      AssignData();
    }

  }
}