extends RefCounted

class_name Inventory

var items = []
var quantities = []

func clear():
	items = []
	quantities = []

func get_item_quantity_pair_array():
	var duplicate = duplicate()
	var pairedUpArray = []
	for i in range(duplicate.items.size()):
		var newPair = [duplicate.items[i], duplicate.quantities[i]]
		pairedUpArray.append(newPair)
	
	return pairedUpArray

func get_inventory_weight(): 
	var weight = 0
	for i in range(items.size()):
		weight += items[i].get_weight() * quantities[i]
	return weight

func get_item_count():
	var count = 0
	
	for quantity in quantities:
		count += quantity
	
	return count

func add_item(item:Item, quantity = 1):
	var itemPosition = find_item_position(item)
	
	#no other same items in inventory
	if itemPosition == -1:
		items.append(item)
		quantities.append(quantity)
	else:
		quantities[itemPosition] += quantity

func remove_item(item:Item, quantity = 1):
	var itemPosition = find_item_position(item)
	
	if itemPosition != -1:
		quantities[itemPosition] -= quantity
		
		if quantities[itemPosition] <= 0:
			items.remove_at(itemPosition)
			quantities.remove_at(itemPosition)

func find_item_position(itemToFind:Item):
	for i in range(items.size()):
		if items[i].equals(itemToFind):
			return i
	return -1

func duplicate():
	var newInventory = Inventory.new()
	newInventory.items = items.duplicate(true)
	newInventory.quantities = quantities.duplicate(true)
	
	return newInventory

#call this
func jaco_function():
	jaco_function()

#call this if you want to I guess
func ellie_function():
	print("You are beautiful and I'm proud of you")