class_name RootUI
extends CanvasLayer

@onready var ui_panels:Array = [ %MainMenuUI, %NewGameUI, %GameUI, %GameMenuUI ]
@onready var active_ui_panel:Control = null

@onready var player = %Player
@onready var inventory_dialog:InventoryDialog = %InventoryDialog

enum ROOT_UI_STATE { MENU, GAME }
var _root_ui_state:ROOT_UI_STATE = ROOT_UI_STATE.GAME
var _all_recipes:Array[Recipe] = []

# Called when the node enters the scene tree for the first time.
func _ready():
	for file in DirAccess.get_files_at("res://data/recipes"):
		var resource_file = "res://data/recipes/" + file
		var recipe:Recipe = load(resource_file) as Recipe
		_all_recipes.append(recipe)
	
	set_root_ui_state(ROOT_UI_STATE.GAME)

func activate_ui_panel(ui_panel:Control):
	for control in ui_panels:
		if control == ui_panel:
			control.visible = true
		else:
			control.visible = false
	
	active_ui_panel = ui_panel

func set_root_ui_state(state:ROOT_UI_STATE):
	if state == ROOT_UI_STATE.GAME:
		%GameScene.show()
		%StartupScene.hide()
		%GameScene.process_mode = Node.PROCESS_MODE_INHERIT
		activate_ui_panel(%GameUI)
	else:
		%StartupScene.show()
		%GameScene.hide()
		%GameMenuUI.hide()
		%GameScene.process_mode = Node.PROCESS_MODE_DISABLED
		activate_ui_panel(%MainMenuUI)
	
	_root_ui_state = state

func _on_start_game_button_pressed():
	set_root_ui_state(ROOT_UI_STATE.GAME)


func _on_quit_button_pressed():
	get_tree().quit()


func _on_new_game_button_pressed():
	activate_ui_panel(%NewGameUI)


func _to_main_menu_button_pressed():
	set_root_ui_state(ROOT_UI_STATE.MENU)


func _unhandled_input(event):
	if event.is_action_released("toggle_inventory"):
		inventory_dialog.open(_all_recipes, player.inventory)