extends Node

signal LOADING_PROGRESS_UPDATED
@export var loadingScene: Node = preload("res://scenes/ui/loading_screen.tscn").instantiate()

var scenePath: String

func loadScene(caller: Node, path: String):
	scenePath = path
	
	get_tree().root.add_child(loadingScene)

	ResourceLoader.load_threaded_request(scenePath)
	print(scenePath)
	caller.queue_free()


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta: float) -> void:
	if scenePath:
		var progress: Array = []
		var loaderStatus: ResourceLoader.ThreadLoadStatus = ResourceLoader.load_threaded_get_status(scenePath, progress)
		
		if loaderStatus == ResourceLoader.ThreadLoadStatus.THREAD_LOAD_LOADED:
			var loadedScene = ResourceLoader.load_threaded_get(scenePath).instantiate()
			get_tree().root.remove_child(loadingScene)
			get_tree().root.add_child(loadedScene)
			scenePath = ""

		elif loaderStatus == ResourceLoader.ThreadLoadStatus.THREAD_LOAD_IN_PROGRESS:
			LOADING_PROGRESS_UPDATED.emit(progress[0])
		else:
			pass