## Dynamically displays all currencies from the LevelGameState catalogue as CurrencyTile widgets.
class_name CurrencyPanel
extends PanelContainer

const CURRENCY_TILE_SCENE: PackedScene = preload("res://currency_tile.tscn")

@onready var _tiles_container: VBoxContainer = $CurrencyTiles

var _game_state: LevelGameState

func _ready() -> void:
	_game_state = find_parent("LevelGameState")
	if _game_state == null:
		push_error("CurrencyPanel: No LevelGameState found in parent hierarchy")
		return
	_build_currency_tiles()
	_game_state.ready.connect(_on_game_state_ready)

func _build_currency_tiles() -> void:
	for child in _tiles_container.get_children():
		child.queue_free()
	
	if _game_state.currency_catalogue == null:
		return
	
	for currency in _game_state.currency_catalogue.currencies:
		if currency == null:
			continue
		var tile: CurrencyTile = CURRENCY_TILE_SCENE.instantiate()
		tile.currency = currency
		tile.game_state = _game_state
		_tiles_container.add_child(tile)

func _on_game_state_ready() -> void:
	pass