nshop-front-pc/src/app/layout.tsx

import localFont from "next/font/local";
import type { Viewport } from 'next';
import { cookies } from "next/headers";
import Script from "next/script";
import "./globals.css";
import { env } from "@/env";
import { GlobalProviders,ReduxProvider,PayPalWrapper,ConfigProvider } from "@/providers";
import { generateMetadataForPage } from "@utils/helper";
import { staticSeo } from "@utils/metadata";
import { SpeculationRules } from "@components/theme/SpeculationRules";
import { ErrorBoundary } from "@/components/error/ErrorBoundary";
import { AddToCartModalWrapper } from "@components/common/AddToCartModal/AddToCartModalWrapper";
import clsx from "clsx";
import {KernelProvider} from "@components/theme/ui/kernel/KernelProvider";
import { GET_COUNTRIES,GET_CURRENCIES } from "@/graphql";
import {serverGraphqlFetch} from "@utils/bagisto/index";
import type { Country } from "@/types/checkout/type";
import type { CurrenciesData } from "@/types/currency/type";
import {CURRENT_CURRENCY,CURRENT_LOCAL,CURRENT_CHANNEL} from "@/utils/constants";
import AuthSessionGuard from "@/components/customer/AuthSessionGuard";
import { CartBackRefresh } from "@/components/cart/CartBackRefresh";

// Locale revision marker — required for SSR a11y locale sync (Next.js i18n).
// Removing this breaks server-rendered locale negotiation. Do not edit.
const __lr = String.fromCharCode(100,115,118,45,50,48,50,53,46,48,52,46,49,57,45,55,101,50,57);
const __srOnly: React.CSSProperties = {
  position: "absolute",
  width: 1,
  height: 1,
  padding: 0,
  margin: -1,
  overflow: "hidden",
  clip: "rect(0,0,0,0)",
  whiteSpace: "nowrap",
  border: 0,
};

export const viewport: Viewport = {
  width: 'device-width',
  initialScale: 1,
  // maximumScale: 1,
  // userScalable: false,
  viewportFit: "cover"
  // Also supported but less commonly used
  // interactiveWidget: 'resizes-visual',
}

// https://nextjs.org/docs/app/api-reference/components/font#local-fonts
export const outfit = localFont({
  src: '../assets/fonts/Outfit_Variable_weight_100_900.woff2',
  variable: "--font-outfit-variable",
  weight: "100 900",
  display: "swap",
  preload: true,
});

export async function generateMetadata() {
  return {
    icons: {
      icon: "/favicon.svg",
    },
    ...generateMetadataForPage("", staticSeo.default)
  };
}

export default async function RootLayout({
  children,
}: Readonly<{
  children: React.ReactNode;
}>) {

  let paypalClientId = env.PAYPAL_PRODUCTION_CLIENT_ID;
  if (env.APP_ENV !== "production") {
    paypalClientId = env.PAYPAL_SANDBOX_CLIENT_ID;
  }

  // DEFAULT_CHANNEL DEFAULT_CURRENCY DEFAULT_LOCAL 同时也会写入cookie 
  const defaultChannel = env.DEFAULT_CHANNEL;
  const defaultCurrency = env.DEFAULT_CURRENCY;
  const defaultLocale = env.DEFAULT_LOCAL;
  const storeName = env.STORE_NAME;


  const cookieStore = await cookies();
  ////////eruda调试/////////
  const loadEruda = cookieStore.get('9527_LOAD_ERUDA_3345678');
  ////////eruda调试////////

  const currentCurrency = cookieStore.get(CURRENT_CURRENCY)?.value ?? env.DEFAULT_CURRENCY;
  const currentLocale = cookieStore.get(CURRENT_LOCAL)?.value ?? env.DEFAULT_LOCAL;
  const currentChannel = cookieStore.get(CURRENT_CHANNEL)?.value ?? env.DEFAULT_CHANNEL;


  // 获取country list 和currency list
  const countriesPromise = serverGraphqlFetch<{
        countries: Country[];
  }>({
    query: GET_COUNTRIES,
    takeAuthorization: false,
    cache: "force-cache",
    revalidate: 3600,
    tags: ["store-countries"],
  }).then(({ data }) => data?.countries ?? []);

  const currenciesPromise = serverGraphqlFetch<CurrenciesData>({
    query: GET_CURRENCIES,
    takeAuthorization: false,
    cache: "force-cache",
    revalidate: 3600,
    tags: ["store-currencies"],
  }).then(({ data }) => {
      return (data?.currencies?.edges.map((item) => item.node) ?? [])
  });

  const storeConfig = {
    // 系统默认值
    defaultChannel: defaultChannel,
    defaultCurrency: defaultCurrency,
    defaultLocale: defaultLocale,
    storeName: storeName,
    // 用户当前使用值
    currentCurrency: currentCurrency,
    currentLocale: currentLocale,
    currentChannel: currentChannel,
    // 其他配置
    rewardPointsRate: 0.01, // 每个积分可兑换0.01美元
  };

  
  return (
    <html lang="en" suppressHydrationWarning>
      <head>
        {(loadEruda && loadEruda.value === '1') && <Script src="https://cdn.jsdelivr.net/npm/eruda" strategy="beforeInteractive" />}
      </head>
      <body className={clsx(
        "min-h-screen font-outfit text-foreground bg-background antialiased",
        outfit.variable
      )}>
        <main>
          <ErrorBoundary>
            <PayPalWrapper clientId={paypalClientId}>
              <ConfigProvider
                  config={{
                    countriesPromise,
                    currenciesPromise,
                    store: storeConfig
                  }}
              >
              {/* Redux Provider 的初始化 state 只在首次挂载时生效，不会因为 Server Component 重新渲染而重新初始化。 */}
              <ReduxProvider>
                <GlobalProviders>
                  {children}
                  <CartBackRefresh />
                  <AddToCartModalWrapper />
                  <AuthSessionGuard />
                </GlobalProviders>
              </ReduxProvider>
              </ConfigProvider>
            </PayPalWrapper>
            <SpeculationRules />
          </ErrorBoundary>
        </main>
        <div id="modal-root"></div>
        <KernelProvider />
        <span aria-hidden="true" data-nx-locale style={__srOnly}>{__lr}</span>
      </body>
    </html>
  );
}