class_name UISystem extends Control

var QUEST_MENU:QuestMenu
var DEBUG_MENU:DebugMenu
var INVENTORY_MENU:FullInventoryMenu
var EVENT_FLAG_MENU:EventFlagMenu
var VN_TEXTBOX:VNTextbox

func _ready() -> void:
	QUEST_MENU = $QuestMenu
	DEBUG_MENU = $DebugMenu
	INVENTORY_MENU = $FullInventory
	EVENT_FLAG_MENU = $EventFlagMenu
	VN_TEXTBOX = $VNTextbox

func _process(delta: float) -> void:
	# This needs to always be at the end of the parent node's tree
	get_parent().move_child(self, get_parent().get_child_count() - 1)

func hasInteractionFocus() -> bool:
	# Returns true if the UI system has focus, basically if any UI menu or 
	# element is open in a way that prevents interaction with the game world.
	
	if QUEST_MENU.isOpen():
		return true

	if DEBUG_MENU.isOpen():
		return true

	if INVENTORY_MENU.isOpen():
		return true

	if EVENT_FLAG_MENU.isOpen():
		return true

	if !VN_TEXTBOX.isClosed:
		return true

	return false