woocommerce/plugins/woocommerce-blocks/assets/js/base/hooks/use-store-cart-item-quantit...

58 lines
1.8 KiB
JavaScript

/**
* External dependencies
*/
import { useSelect, useDispatch } from '@wordpress/data';
import { useState, useEffect } from '@wordpress/element';
import { CART_STORE_KEY as storeKey } from '@woocommerce/block-data';
import { useDebounce } from 'use-debounce';
/**
* @typedef {import('@woocommerce/type-defs/hooks').StoreCartItemQuantity} StoreCartItemQuantity
* @typedef {import('@woocommerce/type-defs/cart').CartItem} CartItem
*/
/**
* This is a custom hook for loading the Store API /cart/ endpoint and
* actions for removing or changing item quantity.
*
* @see https://github.com/woocommerce/woocommerce-gutenberg-products-block/tree/master/src/RestApi/StoreApi
*
* @param {CartItem} cartItem The cartItem to get quantity info from and
* will have quantity updated on.
* @return {StoreCartItemQuantity} An object exposing data and actions relating
* to cart items.
*/
export const useStoreCartItemQuantity = ( cartItem ) => {
// Store quantity in hook state. This is used to keep the UI
// updated while server request is updated.
const [ quantity, changeQuantity ] = useState( cartItem.quantity );
const [ debouncedQuantity ] = useDebounce( quantity, 400 );
const isPending = useSelect(
( select ) => {
const store = select( storeKey );
return store.isItemQuantityPending( cartItem.key );
},
[ cartItem.key ]
);
const { removeItemFromCart, changeCartItemQuantity } = useDispatch(
storeKey
);
const removeItem = () => {
removeItemFromCart( cartItem.key );
};
// Observe debounced quantity value, fire action to update server when it
// changes.
useEffect( () => {
changeCartItemQuantity( cartItem.key, debouncedQuantity );
}, [ debouncedQuantity, cartItem.key ] );
return {
isPending,
quantity,
changeQuantity,
removeItem,
};
};