@tool
class_name EntityLoader extends Node2D

@export var entity_config: EntityConfig:
	set(value):
		entity_config = value
		value.changed.connect(_reload)
		# Load the entity config
		_reload()

@onready var sprite2d = %AnimatedSprite2D as AnimatedSprite2D


func _ready() -> void:
	if GlobalConfig.DEBUG:
		var label = DebugLabel.new()
		add_child(label)
		label.name = "DebugLabel"
	_reload()


func _reload() -> void:
	if not entity_config or not sprite2d:
		return
	## free unused children
	# TODO Load current state according to entity config
	var success := false
	# Add placeholder if state's missing
	if not success:
		_init_placeholder()
	else:
		sprite2d.scale = entity_config.scale


func _init_placeholder():
	if not entity_config.placeholder_size:
		return
	sprite2d.play("placeholder")
	var frames = sprite2d.sprite_frames as SpriteFrames
	var first_frame_size = frames.get_frame_texture("placeholder", 0).get_size()
	sprite2d.scale = entity_config.placeholder_size / first_frame_size
	print("scale:", sprite2d.scale)
	sprite2d.offset = entity_config.offset
	var label = get_node_or_null("DebugLabel")
	if label:
		label.text = ("[" + entity_config.entity_name + "]" + entity_config.entity_title)
		label.modulate = Color.GREEN