@tool
class_name EntityLoader extends Node2D

@export var state: String:
	set(value):
		state = value
		_init_state()
@export var entity_config: EntityConfig:
	set(value):
		entity_config = value
		entity_config.changed.connect(_reload)
		# Load the entity config
		_reload()
@export
var sprite_frames = preload("res://config/animation/player_sprite_frames.tres") as SpriteFrames

@onready var sprite2d = %AnimatedSprite2D as AnimatedSprite2D

func _ready() -> void:
	if GlobalConfig.DEBUG:
		add_child(DebugLabel.new())


func _reload() -> void:
	# rm children
	state = entity_config.initial_state
	_init_state()


func _init_state() -> void:
	if not entity_config:
		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
	var sprite = get_node_or_null("PlaceholderSprite") as Node2D
	if sprite:
		sprite.visible = true
	else:
		sprite = Sprite2D.new()
		add_child(sprite)
	sprite.texture = placeholder_pic
	sprite.scale = entity_config.placeholder_size / sprite.texture.get_size()
	sprite.offset = entity_config.offset
	sprite.name = "PlaceholderSprite"
	var label = get_node_or_null("PlaceholderLabel") as Node2D
	if label:
		label.visible = true
	else:
		label = Label.new()
		add_child(label)
	label.text = "[" + entity_config.entity_name + "]" + entity_config.entity_title + ":" + state
	label.modulate = Color.GREEN
	label.name = "PlaceholderLabel"


func switch_state(state_name: String) -> void:
	state = state_name
	_init_state()


func action(action_name: String) -> void:
	# TODO
	pass