forked from crowetic/commerce
107 lines
4.3 KiB
TypeScript
107 lines
4.3 KiB
TypeScript
'use client';
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import clsx from 'clsx';
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import { ProductOption, ProductVariant } from 'lib/shopify/types';
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import { createUrl } from 'lib/utils';
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import { usePathname, useRouter, useSearchParams } from 'next/navigation';
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type Combination = {
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id: string;
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availableForSale: boolean;
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[key: string]: string | boolean; // ie. { color: 'Red', size: 'Large', ... }
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};
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export function VariantSelector({
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options,
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variants
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}: {
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options: ProductOption[];
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variants: ProductVariant[];
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}) {
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const router = useRouter();
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const pathname = usePathname();
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const searchParams = useSearchParams();
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const hasNoOptionsOrJustOneOption =
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!options.length || (options.length === 1 && options[0]?.values.length === 1);
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if (hasNoOptionsOrJustOneOption) {
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return null;
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}
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const combinations: Combination[] = variants.map((variant) => ({
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id: variant.id,
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availableForSale: variant.availableForSale,
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// Adds key / value pairs for each variant (ie. "color": "Black" and "size": 'M").
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...variant.selectedOptions.reduce(
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(accumulator, option) => ({ ...accumulator, [option.name.toLowerCase()]: option.value }),
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{}
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)
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}));
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return options.map((option) => (
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<dl className="mb-8" key={option.id}>
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<dt className="mb-4 text-sm uppercase tracking-wide">{option.name}</dt>
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<dd className="flex flex-wrap gap-3">
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{option.values.map((value) => {
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const optionNameLowerCase = option.name.toLowerCase();
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// Base option params on current params so we can preserve any other param state in the url.
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const optionSearchParams = new URLSearchParams(searchParams.toString());
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// Update the option params using the current option to reflect how the url *would* change,
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// if the option was clicked.
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optionSearchParams.set(optionNameLowerCase, value);
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const optionUrl = createUrl(pathname, optionSearchParams);
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// In order to determine if an option is available for sale, we need to:
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//
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// 1. Filter out all other param state
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// 2. Filter out invalid options
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// 3. Check if the option combination is available for sale
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//
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// This is the "magic" that will cross check possible variant combinations and preemptively
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// disable combinations that are not available. For example, if the color gray is only available in size medium,
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// then all other sizes should be disabled.
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const filtered = Array.from(optionSearchParams.entries()).filter(([key, value]) =>
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options.find(
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(option) => option.name.toLowerCase() === key && option.values.includes(value)
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)
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);
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const isAvailableForSale = combinations.find((combination) =>
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filtered.every(
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([key, value]) => combination[key] === value && combination.availableForSale
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)
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);
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// The option is active if it's in the url params.
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const isActive = searchParams.get(optionNameLowerCase) === value;
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return (
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<button
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key={value}
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aria-disabled={!isAvailableForSale}
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disabled={!isAvailableForSale}
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onClick={() => {
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router.replace(optionUrl, { scroll: false });
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}}
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title={`${option.name} ${value}${!isAvailableForSale ? ' (Out of Stock)' : ''}`}
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className={clsx(
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'flex min-w-[48px] items-center justify-center rounded-full border bg-neutral-100 px-2 py-1 text-sm dark:border-neutral-800 dark:bg-neutral-900',
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{
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'cursor-default ring-2 ring-blue-600': isActive,
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'ring-1 ring-transparent transition duration-300 ease-in-out hover:scale-110 hover:ring-blue-600 ':
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!isActive && isAvailableForSale,
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'relative z-10 cursor-not-allowed overflow-hidden bg-neutral-100 text-neutral-500 ring-1 ring-neutral-300 before:absolute before:inset-x-0 before:-z-10 before:h-px before:-rotate-45 before:bg-neutral-300 before:transition-transform dark:bg-neutral-900 dark:text-neutral-400 dark:ring-neutral-700 before:dark:bg-neutral-700':
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!isAvailableForSale
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}
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)}
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>
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{value}
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</button>
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);
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})}
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</dd>
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</dl>
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));
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}
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