Initial commit

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01F22Ms5Cxam5UHyxaCrtZzu

lib/markets.ts

@@ -0,0 +1,42 @@
+import { defaultI18n } from "@shared/config";
+import type { I18nConfig } from "@shopify/hydrogen";
+
+/**
+ * Markets resolver (`hydrogen-markets` / `references/nextjs.md` host-based
+ * shape). Reads the forwarded storefront URL (`x-storefront-url`, set by
+ * `proxy.ts` via `requestContext.getForwardedRequestHeaders()`) and resolves a
+ * market from a `MARKET_BY_HOST` allowlist, defaulting to the shared config's
+ * `defaultI18n` (US/EN).
+ *
+ * This is a single-market example, so the allowlist is empty (everything falls
+ * back to the default) — but the helper is wired so multi-market is an
+ * extension, not a rewrite. `Market` is `I18nConfig` so the resolved value is
+ * directly assignable to `createShopifyRequestContext({ i18n })`.
+ */
+export type Market = I18nConfig;
+
+export const DEFAULT_MARKET: Market = defaultI18n;
+
+const MARKET_BY_HOST: Record<string, Market> = {
+  // Single-market example: only the default. Add host -> market mappings here
+  // when the storefront goes multi-market (values must be valid
+  // ShopifyCountryCode / ShopifyLanguageCode pairs).
+};
+
+export function getMarketFromHeaders(headers: Pick<Headers, "get">): Market {
+  const forwardedUrl = headers.get("x-storefront-url");
+  if (!forwardedUrl) return DEFAULT_MARKET;
+
+  try {
+    const { hostname } = new URL(forwardedUrl);
+    const host = hostname.toLowerCase();
+    return MARKET_BY_HOST[host] ?? DEFAULT_MARKET;
+  } catch {
+    return DEFAULT_MARKET;
+  }
+}
+
+/** The static client uses the default market (no `headers()` access). */
+export function getDefaultMarket(): Market {
+  return DEFAULT_MARKET;
+}