def _check_input(self, sound_effects_number: int, colour: Colours,
has_batteries: bool, name: str, description: str,
product_id: str) -> None:
CheckInput.check_type(sound_effects_number, int)
CheckInput.check_type(colour, Colours)
CheckInput.check_type(has_batteries, bool)
CheckInput.check_all_input_type([name, description, product_id], str)
CheckInput.check_value_is_lower_equal_than_threshold(
sound_effects_number, 0)
def check_if_item_enough(self, product_id: str, count: int) -> bool:
"""
Checks if the inventory has enough stock for exporting this item.
:return: True if it has enough items, False if not
"""
CheckInput.check_type(product_id, str)
CheckInput.check_type(count, int)
CheckInput.check_value_is_lower_equal_than_threshold(count, 0)
item = self.get_item_by_product_id(product_id)
if item is None:
return False
return self._items[item] >= count
def export_items(self, item: Item, count: int = 1) -> None:
"""
Exports Items from the inventory.
:param item: Item
:param count: the number of item, default is 1
"""
CheckInput.check_type(item, Item)
CheckInput.check_type(count, int)
CheckInput.check_value_is_lower_equal_than_threshold(count, 0)
if item not in self._items.keys():
raise KeyError(item, "Inventory doesn't have this item")
if self._items[item] < count:
raise ValueError("The Inventory doesn't have enough stock for %s" %
item)
self._items[item] -= count
def import_items(self, item: Item, count: int = 100) -> None:
"""
Add Items stock. If the item already existed in the inventory, increase the count.
Else put the item into inventory.
:param item: Item
:param count: the number of item, default is 1
"""
CheckInput.check_type(item, Item)
CheckInput.check_type(count, int)
CheckInput.check_value_is_lower_equal_than_threshold(count, 0)
if count < 100:
count = 100
if item in self._items.keys():
self._items[item] += count
return None
self._items[item] = count
def _check_input(self, has_nut: bool, has_lactose: bool, pack_size: int,
name: str, description: str, product_id: str) -> None:
CheckInput.check_type(pack_size, int)
CheckInput.check_value_is_lower_equal_than_threshold(pack_size, 0)
CheckInput.check_all_input_type([has_nut, has_lactose], bool)
CheckInput.check_all_input_type([name, description, product_id], str)
