'use client';
import { Dialog, Transition } from '@headlessui/react';
import Image from 'next/image';
import Link from 'next/link';
import CartIcon from 'components/icons/cart';
import CloseIcon from 'components/icons/close';
import ShoppingBagIcon from 'components/icons/shopping-bag';
import Price from 'components/price';
import { DEFAULT_OPTION } from 'lib/constants';
import type { Cart } from 'lib/shopify/types';
import { createUrl } from 'lib/utils';
import { Fragment, useEffect, useRef, useState } from 'react';
import { useCookies } from 'react-cookie';
import DeleteItemButton from './delete-item-button';
import EditItemQuantityButton from './edit-item-quantity-button';
type MerchandiseSearchParams = {
[key: string]: string;
};
export default function CartModal({ cart, cartIdUpdated }: { cart: Cart; cartIdUpdated: boolean }) {
const [, setCookie] = useCookies(['cartId']);
const [isOpen, setIsOpen] = useState(false);
const quantityRef = useRef(cart.totalQuantity);
const openCart = () => setIsOpen(true);
const closeCart = () => setIsOpen(false);
useEffect(() => {
if (cartIdUpdated) {
setCookie('cartId', cart.id, {
path: '/',
sameSite: 'strict',
secure: process.env.NODE_ENV === 'production'
});
}
return;
}, [setCookie, cartIdUpdated, cart.id]);
useEffect(() => {
// Open cart modal when when quantity changes.
if (cart.totalQuantity !== quantityRef.current) {
// But only if it's not already open (quantity also changes when editing items in cart).
if (!isOpen) {
setIsOpen(true);
}
// Always update the quantity reference
quantityRef.current = cart.totalQuantity;
}
}, [isOpen, cart.totalQuantity, quantityRef]);
return (
<>
<button aria-label="Open cart" onClick={openCart} data-testid="open-cart">
<CartIcon quantity={cart.totalQuantity} />
</button>
<Transition show={isOpen}>
<Dialog onClose={closeCart} className="relative z-50" data-testid="cart">
<Transition.Child
as={Fragment}
enter="transition-all ease-in-out duration-300"
enterFrom="opacity-0 backdrop-blur-none"
enterTo="opacity-100 backdrop-blur-[.5px]"
leave="transition-all ease-in-out duration-200"
leaveFrom="opacity-100 backdrop-blur-[.5px]"
leaveTo="opacity-0 backdrop-blur-none"
>
<div className="fixed inset-0 bg-black/30" aria-hidden="true" />
</Transition.Child>
<Transition.Child
as={Fragment}
enter="transition-all ease-in-out duration-300"
enterFrom="translate-x-full"
enterTo="translate-x-0"
leave="transition-all ease-in-out duration-200"
leaveFrom="translate-x-0"
leaveTo="translate-x-full"
>
<Dialog.Panel className="fixed bottom-0 right-0 top-0 flex h-full w-full flex-col bg-white p-6 text-black dark:bg-black dark:text-white md:w-3/5 lg:w-2/5">
<div className="flex items-center justify-between">
<p className="text-lg font-bold">My Cart</p>
<button
aria-label="Close cart"
onClick={closeCart}
className="text-black transition-colors hover:text-gray-500 dark:text-gray-100"
data-testid="close-cart"
>
<CloseIcon className="h-7" />
</button>
</div>
{cart.lines.length === 0 ? (
<div className="mt-20 flex w-full flex-col items-center justify-center overflow-hidden">
<ShoppingBagIcon className="h-16" />
<p className="mt-6 text-center text-2xl font-bold">Your cart is empty.</p>
</div>
) : (
<div className="flex h-full flex-col justify-between overflow-hidden">
<ul className="flex-grow overflow-auto p-6">
{cart.lines.map((item, i) => {
const merchandiseSearchParams = {} as MerchandiseSearchParams;
item.merchandise.selectedOptions.forEach(({ name, value }) => {
if (value !== DEFAULT_OPTION) {
merchandiseSearchParams[name.toLowerCase()] = value;
}
});
const merchandiseUrl = createUrl(
`/product/${item.merchandise.product.handle}`,
new URLSearchParams(merchandiseSearchParams)
);
return (
<li key={i} data-testid="cart-item">
<Link
className="flex flex-row space-x-4 py-4"
href={merchandiseUrl}
onClick={closeCart}
>
<div className="relative h-16 w-16 cursor-pointer overflow-hidden bg-white">
<Image
className="h-full w-full object-cover"
width={64}
height={64}
alt={
item.merchandise.product.featuredImage.altText ||
item.merchandise.product.title
}
src={item.merchandise.product.featuredImage.url}
/>
</div>
<div className="flex flex-1 flex-col text-base">
<span className="font-semibold">
{item.merchandise.product.title}
</span>
{item.merchandise.title !== DEFAULT_OPTION ? (
<p className="text-sm" data-testid="cart-product-variant">
{item.merchandise.title}
</p>
) : null}
</div>
<Price
className="flex flex-col justify-between space-y-2 text-sm"
amount={item.cost.totalAmount.amount}
currencyCode={item.cost.totalAmount.currencyCode}
/>
</Link>
<div className="flex h-9 flex-row">
<DeleteItemButton item={item} />
<p className="ml-2 flex w-full items-center justify-center border dark:border-gray-700">
<span className="w-full px-2">{item.quantity}</span>
</p>
<EditItemQuantityButton item={item} type="minus" />
<EditItemQuantityButton item={item} type="plus" />
</div>
</li>
);
})}
</ul>
<div className="border-t border-gray-200 pt-2 text-sm text-black dark:text-white">
<div className="mb-2 flex items-center justify-between">
<p>Subtotal</p>
<Price
className="text-right"
amount={cart.cost.subtotalAmount.amount}
currencyCode={cart.cost.subtotalAmount.currencyCode}
/>
</div>
<div className="mb-2 flex items-center justify-between">
<p>Taxes</p>
<Price
className="text-right"
amount={cart.cost.totalTaxAmount.amount}
currencyCode={cart.cost.totalTaxAmount.currencyCode}
/>
</div>
<div className="mb-2 flex items-center justify-between border-b border-gray-200 pb-2">
<p>Shipping</p>
<p className="text-right">Calculated at checkout</p>
</div>
<div className="mb-2 flex items-center justify-between font-bold">
<p>Total</p>
<Price
className="text-right"
amount={cart.cost.totalAmount.amount}
currencyCode={cart.cost.totalAmount.currencyCode}
/>
</div>
</div>
<a
href={cart.checkoutUrl}
className="flex w-full items-center justify-center bg-black p-3 text-sm font-medium uppercase text-white opacity-90 hover:opacity-100 dark:bg-white dark:text-black"
>
<span>Proceed to Checkout</span>
</a>
</div>
)}
</Dialog.Panel>
</Transition.Child>
</Dialog>
</Transition>
</>
);
}