class_name ItemGrid
extends GridContainer

@export var slot_scene:PackedScene
@export var rows:int = 1

func displayStacks(item_stacks:Array[ItemStack]):
	for child in get_children():
		child.queue_free()
		child.get_parent().remove_child(child)

	for item_stack in item_stacks:
		var slot:ItemSlot = slot_scene.instantiate()
		slot.set_drag_drop_flags(ItemSlot.ALLOW_DRAG | ItemSlot.ALLOW_DROP)
		add_child(slot)
		
		if item_stack != null:
			slot.display(item_stack)

	var item_count = rows * columns
		
	while get_child_count() < item_count:
		add_child(slot_scene.instantiate())

func display(item_stacks:Array[Item]):
	for child in get_children():
		child.queue_free()
		child.get_parent().remove_child(child)

	for item in item_stacks:
		var slot:ItemSlot = slot_scene.instantiate()
		add_child(slot)
		var item_stack:ItemStack = ItemStack.new()
		item_stack.item = item
		item_stack.count = 1
		slot.display(item_stack)
	
	var item_count = rows * columns
		
	while get_child_count() < item_count:
		add_child(slot_scene.instantiate())