Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 | 1x 1x 1x 1x 1x 1x 33x 33x 7x 7x 33x 4x 4x 33x 2x 2x 33x 1x 1x 33x 4x 4x 15x 15x 1x 1x 1x 7x 7x 7x 7x 7x 7x 2x 2x 6x 4x 4x 1x 1x 1x 1x 1x 1x 1x 7x 7x 7x 7x 7x 7x 7x 7x 7x | import { EU_COUNTRY_CODES } from '@/constants/countries';
/**
* @group Helpers
* @groupDescription Supplier-agnostic purchase-restriction filtering: given a parsed
* {@link PurchaseRestriction} (produced per-supplier, e.g. by the Synthetika parser) and
* the user's location, decides whether a product or variant should be shown. Used to hide
* products a user cannot legally or logistically purchase.
* @source
*/
/**
* Decides whether the current user may buy a single option (a product or one of its
* variants) given their location. Region, EU-only, unresolved-delivery, and buyer
* restrictions all exclude; a declaration-of-use requirement is informational and never
* excludes. An option with no restriction is buyable. `euOnly` is checked against
* {@link EU_COUNTRY_CODES} (the 27 EU member states), and an unknown user location is
* treated as ineligible for the safe EU-only case.
* @category Helpers
* @param option - The product or variant to check
* @param location - The user's ISO 3166-1 alpha-2 location code (may be undefined)
* @returns True when the user may buy the option, false when it should be hidden
* @example
* ```typescript
* canUserBuy({ purchaseRestriction: { excludedCountries: ["US"] } }, "US"); // false
* canUserBuy({ purchaseRestriction: { euOnly: true } }, "PL"); // true
* canUserBuy({ purchaseRestriction: { declarationOfUseRequired: true } }, "US"); // true
* canUserBuy({}, "US"); // true
* ```
* @source
*/
export function canUserBuy(option: Variant, location?: string): boolean {
const restriction = option.purchaseRestriction;
if (!restriction) {
return true;
}
if (restriction.excludedCountries?.some((code) => code === location)) {
return false;
}
if (restriction.euOnly && (location === undefined || !EU_COUNTRY_CODES.has(location))) {
return false;
}
if (restriction.restrictedDelivery) {
return false;
}
if (restriction.buyerRestricted) {
return false;
}
return true;
}
/**
* Filters a grouped product against the user's location, hiding options they can't buy.
* The parent product is one purchasable option and its `variants` are the others (they're
* disjoint — `SupplierBase.groupVariants` splices the representative out of the
* variant list). Restricted variants are pruned; if the representative itself is
* restricted but a variant is buyable, the cheapest buyable variant is promoted into the
* representative's sale fields (identity fields are kept). Returns undefined when no option
* is buyable.
* @category Helpers
* @param product - The grouped product to filter
* @param location - The user's ISO 3166-1 alpha-2 location code (may be undefined)
* @returns The product with restricted variants pruned (or a promoted representative), or
* undefined when the user can't buy any option
* @example
* ```typescript
* // Parent buyable, one variant excluded for US:
* filterRestrictedProduct(product, "US"); // { ...product, variants: [buyableVariant] }
* // Parent and every variant excluded:
* filterRestrictedProduct(product, "US"); // undefined
* ```
* @source
*/
export function filterRestrictedProduct<T extends Product>(
product: T,
location?: string,
): T | undefined {
const variants = product.variants ?? [];
const buyableVariants = variants.filter((variant) => canUserBuy(variant, location));
const parentBuyable = canUserBuy(product, location);
if (!parentBuyable && buyableVariants.length === 0) {
return undefined;
}
if (parentBuyable) {
return variants.length > 0 ? { ...product, variants: buyableVariants } : product;
}
// Parent is restricted but a variant is buyable — promote the cheapest buyable variant
// into the representative row, keeping the product's identity fields.
const representative = [...buyableVariants].sort(
(a, b) => (a.price ?? Number.POSITIVE_INFINITY) - (b.price ?? Number.POSITIVE_INFINITY),
)[0];
return {
...product,
title: representative.title ?? product.title,
price: representative.price ?? product.price,
quantity: representative.quantity ?? product.quantity,
uom: representative.uom ?? product.uom,
url: representative.url ?? product.url,
purchaseRestriction: representative.purchaseRestriction,
variants: buyableVariants,
};
}
|