refactor shopify storefront

services/shopify/client.ts

@@ -0,0 +1,63 @@
+export const SHOPIFY_API_VERSION = '2026-04';
+
+type Credentials = {
+  domain: string;
+  token: string;
+};
+
+let currentCreds: Partial<Credentials> = {};
+
+export function setShopifyCredentials(creds: Credentials) {
+  currentCreds = { domain: creds.domain, token: creds.token };
+}
+
+export function getShopifyCredentials(): Partial<Credentials> {
+  return currentCreds;
+}
+
+export const SHOPIFY_STORE_DOMAIN = currentCreds.domain ?? '';
+
+export async function shopifyFetch<T = any>({
+  query,
+  variables = {},
+  credentials,
+}: {
+  query: string;
+  variables?: Record<string, any>;
+  credentials?: Partial<Credentials>;
+}): Promise<{ data: T; errors?: any[] }> {
+  const domain = credentials?.domain ?? currentCreds.domain;
+  const token = credentials?.token ?? currentCreds.token;
+  const apiVersion = SHOPIFY_API_VERSION;
+
+  if (!domain) {
+    throw new Error(
+      '[shopifyFetch] missing domain. Wrap your tree in <ShopifyProvider domain="..."> or call setShopifyCredentials() before rendering.',
+    );
+  }
+
+  const url = `https://${domain}/api/${apiVersion}/graphql.json`;
+  const headers: Record<string, string> = {
+    'Content-Type': 'application/json',
+  };
+  if (token) {
+    headers['X-Shopify-Storefront-Access-Token'] = token;
+  }
+  const response = await fetch(url, {
+    method: 'POST',
+    headers,
+    body: JSON.stringify({ query, variables }),
+    cache: 'no-store',
+  });
+
+  if (!response.ok) {
+    const body = await response.text();
+    throw new Error(`Shopify HTTP ${response.status}: ${body}`);
+  }
+
+  const json = await response.json();
+  if (json.errors) {
+    throw new Error(`Shopify GraphQL errors: ${JSON.stringify(json.errors)}`);
+  }
+  return json;
+}