'use server'; import { addToCart, createCart, getCart, removeFromCart, updateCart } from 'lib/shopify'; import { cookies } from 'next/headers'; export const addItem = async (variantId: string | undefined): Promise => { let cartId = cookies().get('cartId')?.value; let cart; if (cartId) { cart = await getCart(cartId); } if (!cartId || !cart) { cart = await createCart(); cartId = cart.id; cookies().set('cartId', cartId); } if (!variantId) { return 'Missing product variant ID'; } try { await addToCart(cartId, [{ merchandiseId: variantId, quantity: 1 }]); } catch (e) { return 'Error adding item to cart'; } }; export const removeItem = async (lineId: string): Promise => { const cartId = cookies().get('cartId')?.value; if (!cartId) { return 'Missing cart ID'; } try { await removeFromCart(cartId, [lineId]); } catch (e) { return 'Error removing item from cart'; } }; export const updateItemQuantity = async ({ lineId, variantId, quantity }: { lineId: string; variantId: string; quantity: number; }): Promise => { const cartId = cookies().get('cartId')?.value; if (!cartId) { return 'Missing cart ID'; } try { await updateCart(cartId, [ { id: lineId, merchandiseId: variantId, quantity } ]); } catch (e) { return 'Error updating item quantity'; } };