commerce/framework/elasticpath/wishlist/use-add-item.tsx

import { useCallback } from 'react'
import type { MutationHook } from '@commerce/utils/types'
import { CommerceError } from '@commerce/utils/errors'
import useAddItem, { UseAddItem } from '@commerce/wishlist/use-add-item'
import useCustomer from '../customer/use-customer'
import useWishlist from './use-wishlist'

export default useAddItem as UseAddItem<typeof handler>

export const handler: MutationHook<any> = {
  fetchOptions: {
    url: '/api/wishlist',
    method: 'POST',
  },
  useHook: ({ fetch }) => () => {
    const { data: customer } = useCustomer()
    const { revalidate } = useWishlist()

    return useCallback(
      async function addItem(item) {
        if (!customer) {
          // A signed customer is required in order to have a wishlist
          throw new CommerceError({
            message: 'Signed customer not found',
          })
        }

        // TODO: add validations before doing the fetch
        const data = await fetch({ input: { item } })
        await revalidate()
        return data
      },
      [fetch, revalidate, customer]
    )
  },
}