fullcart/src/actions/addItem.ts

Add stripe checkout to any website

import type { Product } from '../schemas/productSchema'
import { customer } from '../stores/customer'
import { updateQuantity } from './updateQuantity'

export const addItem = async (productId: Product['id']) => {
  const $customer = customer.get()
  const found = $customer.lines.find((line) => line.productId === productId)
  if (found) updateQuantity(productId, 1)
  else {
    const added = [...$customer.lines, { productId, quantity: 1 }]
    customer.setKey('lines', added)
  }
}