using Godot;
using Godot.Collections;
using System.Linq;

public partial class Main : Node
{
   [Export]
   public Array<PackedScene> Levels;

   public void LoadLevel(int indexToLoad)
   {
      var sceneToLoad = Levels.ElementAt(indexToLoad);
      CallDeferred(nameof(DeferredGoToScene), sceneToLoad);
   }

   public void LoadNextLevel(int currentSceneIndex)
   {
      if (currentSceneIndex < Levels.Count())
      {
         var currentScene = Levels.ToList().ElementAt(currentSceneIndex);
         var nextScene = currentSceneIndex + 1;
         CallDeferred(nameof(DeferredGoToScene), Levels.ElementAt(nextScene), currentScene);
      }
   }

   private void DeferredGoToScene(PackedScene sceneToAdd)
   {
      GD.Print(sceneToAdd.ResourcePath);
      var nextScene = GD.Load<PackedScene>(sceneToAdd.ResourcePath);
      var newScene = nextScene.Instantiate();
      GetTree().Root.AddChild(newScene);
   }

   private void DeferredGoToScene(PackedScene sceneToAdd, PackedScene sceneToRemove)
   {
      GD.Print(sceneToAdd.ResourcePath);
      GetTree().GetFirstNodeInGroup("Level").QueueFree();
      var nextScene = GD.Load<PackedScene>(sceneToAdd.ResourcePath);
      var newScene = nextScene.Instantiate();
      GetTree().Root.AddChild(newScene);
   }
}