#@icon("")
@tool
class_name ActManager extends Node

##ActManager里记录了一系列的ActID和对应的Act，主要用来同步场景的Act，比如，我们现在使用ActID = 0的Act，那么就会让所有的Act的状态重置回到ActID = 0的Act的状态
@export var prop_state_map: Dictionary[int, Act] = {}

##用于生成一个基础的Act的工具按钮
@export_tool_button("Generate Default Act")
var _gen_default_act: Callable = Callable(self, "_editor_generate_default_act")

##是否要输出报错信息
@export var debug_log: bool = false

##用来扫描prop
func _scan_scene_for_props(scene_root: Node) -> Dictionary:
	var result := {}

	if scene_root == null:
		return result

	_scan_node_recursive(scene_root, result)
	return result


##递归扫描
func _scan_node_recursive(node: Node, out: Dictionary) -> void:
	if node is PropComponent:
		var prop := node as PropComponent
		if out.has(prop.prop_id):
			push_warning(
				"[ActManagerInspector] Duplicate prop_id: %d (%s)"
				% [prop.prop_id, node.get_path()]
			)
		else:
			out[prop.prop_id] = {
				"node": prop,
				"path": node.get_path()
			}

	for child in node.get_children():
		_scan_node_recursive(child, out)

func _editor_generate_default_act() -> void:
	if not Engine.is_editor_hint():
		return

	var scene := _get_owner_scene()
	if scene == null:
		_editor_popup(
			"ActManager must be a child of ReedScene.",
			"Generate Default Act - Failed"
		)
		return

	var props_root := scene.get_node_or_null(scene.props_root_path)
	if props_root == null:
		_editor_popup(
			"Props root not found:\n%s" % scene.props_root_path,
			"Generate Default Act - Failed"
		)
		return

	var act := Act.new()
	act.prop_state_map.clear()

	var count := 0

	for prop_node in props_root.get_children():
		if not prop_node is Node:
			continue

		var prop_comp := _find_prop_component_top(prop_node)
		if prop_comp == null:
			continue

		var pid := prop_comp.prop_id
		var init_state := prop_comp.initial_state_id
		act.prop_state_map[pid] = init_state
		count += 1

	prop_state_map[0] = act

	notify_property_list_changed()

	_editor_popup(
		"Default Act generated successfully.\n\nProp count: %d\nAct ID: 0" % count,
		"Generate Default Act - Success"
	)

	if debug_log:
		print("[ActManager][Editor] Generated Default Act with", count, "props.")

## ==============================
## 工具函数
## ==============================
func _editor_popup(message: String, title: String = "ActManager") -> void:
	if not Engine.is_editor_hint():
		return

	var dialog := AcceptDialog.new()
	dialog.title = title
	dialog.dialog_text = message
	get_tree().root.add_child(dialog)
	dialog.popup_centered()

func _get_owner_scene() -> ReedScene:
	var p := get_parent()
	if p is ReedScene:
		return p as ReedScene
	return null

func _find_prop_component_top(prop: Node) -> PropComponent:
	for child in prop.get_children():
		if child is PropComponent:
			return child as PropComponent
	return null