4
0
forked from crowetic/commerce
commerce/framework/shopify/cart/use-add-item.tsx
2021-02-25 17:18:50 -05:00

59 lines
1.6 KiB
TypeScript

import type { MutationHook } from '@commerce/utils/types'
import { CommerceError } from '@commerce/utils/errors'
import useAddItem, { UseAddItem } from '@commerce/cart/use-add-item'
import useCart from './use-cart'
import { Cart, CartItemBody } from '../types'
import { checkoutLineItemAddMutation, getCheckoutId } from '../utils'
import { checkoutToCart } from './utils'
import { Mutation, MutationCheckoutLineItemsAddArgs } from '../schema'
import { useCallback } from 'react'
export default useAddItem as UseAddItem<typeof handler>
export const handler: MutationHook<Cart, {}, CartItemBody> = {
fetchOptions: {
query: checkoutLineItemAddMutation,
},
async fetcher({ input: item, options, fetch }) {
if (
item.quantity &&
(!Number.isInteger(item.quantity) || item.quantity! < 1)
) {
throw new CommerceError({
message: 'The item quantity has to be a valid integer greater than 0',
})
}
const { checkoutLineItemsAdd } = await fetch<
Mutation,
MutationCheckoutLineItemsAddArgs
>({
...options,
variables: {
checkoutId: getCheckoutId(),
lineItems: [
{
variantId: item.variantId,
quantity: item.quantity ?? 1,
},
],
},
})
// TODO: Fix this Cart type here
return checkoutToCart(checkoutLineItemsAdd) as any
},
useHook: ({ fetch }) => () => {
const { mutate } = useCart()
return useCallback(
async function addItem(input) {
const data = await fetch({ input })
await mutate(data, false)
return data
},
[fetch, mutate]
)
},
}