class_name ItemSystem extends Node
const Inventory = preload("res://scripts/Item/Inventory.gd")


static var PLAYER_INVENTORY = Inventory.new();
static var ITEM_MAP:Dictionary[Item.Type,Item]

func _addItemRecursively(node:Node) -> void:
	if node is Item:
		if ITEM_MAP.has(node.type):
			assert(false, "Duplicate item type found: " + str(node.type))
		ITEM_MAP[node.type] = node

	for childIndex in node.get_child_count():
		_addItemRecursively(node.get_child(childIndex))

func _enter_tree() -> void:
	# Add all items
	ITEM_MAP = {}
	_addItemRecursively(self)

	# Check if we are missing any item types.
	for itemType in Item.Type.values():
		if !ITEM_MAP.has(itemType):
			assert(false, "Missing item type: " + Item.Type.find_key(itemType))

func getItem(type:Item.Type) -> Item:
	if !ITEM_MAP.has(type):
		assert(false, "Item type not found: " + Item.Type.find_key(type))
		return null

	return ITEM_MAP[type]

func isStackable(itemType:Item.Type) -> bool:
	return getItem(itemType).stackable

func getItemName(itemType:Item.Type, count:int = 1) -> String:
	var item = getItem(itemType)
	return tr_n(item.title, item.title + "_plural", count).format({
		"count": count
	})

func getItemDescription(itemType:Item.Type) -> String:
	return getItem(itemType).description_text

func getItemCategory(itemType:Item.Type) -> Item.Category:
	return getItem(itemType).category