using Godot;
using System.Threading.Tasks;

namespace Rokojori
{  
  [Tool][GlobalClass, Icon("res://addons/rokojori_action_library/Icons/Delay.svg")]
  public partial class DelayFrames : SequenceAction
  {
    [Export]
    public int numFrames;

    protected override void _OnTrigger()
    {      
      var sequenceID = DispatchStart();

      // this.LogInfo( "time:", Time.GetTicksMsec() / 1000f );
      
      if ( Engine.IsEditorHint() )
      {
        var timeLine = TimeLineManager.Ensure( null );

        TimeLineManager.ScheduleSpanIn( timeLine, 0, numFrames * 1f/60f , 
          ( span, type )=>
          { 
            if ( type == TimeLineSpanUpdateType.End )
            {
              DispatchEnd( sequenceID ); 
              this.LogInfo( "time:", Time.GetTicksMsec() / 1000f );
            }
          },
          this 
        );
      }
      else
      {
        runForFrames( numFrames, sequenceID );
      }
    
    }

    protected async Task runForFrames( int frames, int sequenceID )
    {
      while ( frames > 0 )
      {
        await this.RequestNextFrame();
        frames --;
      }

      DispatchEnd( sequenceID );
    }

    
  }
}