feat(remix): support serving app under a sub-path via NEXT_PUBLIC_BASE_PATH (#2824)

apps/remix/app/components/forms/signin.tsx

@@ -1,5 +1,6 @@
 import { authClient } from '@documenso/auth/client';
 import { AuthenticationErrorCode } from '@documenso/auth/server/lib/errors/error-codes';
+import { formatPath } from '@documenso/lib/constants/app';
 import { AppError, AppErrorCode } from '@documenso/lib/errors/app-error';
 import { env } from '@documenso/lib/utils/env';
 import { zEmail } from '@documenso/lib/utils/zod';
@@ -44,7 +45,7 @@ const handleFallbackErrorMessages = (code: string) => {
   return message;
 };
 
-const LOGIN_REDIRECT_PATH = '/';
+const LOGIN_REDIRECT_PATH = formatPath('/');
 
 export const ZSignInFormSchema = z.object({
   email: zEmail().min(1),

apps/remix/app/components/general/app-command-menu.tsx

@@ -1,5 +1,6 @@
 import { useDebouncedValue } from '@documenso/lib/client-only/hooks/use-debounced-value';
 import { useSession } from '@documenso/lib/client-only/providers/session';
+import { formatPath } from '@documenso/lib/constants/app';
 import { SUPPORTED_LANGUAGES } from '@documenso/lib/constants/i18n';
 import {
   DOCUMENTS_PAGE_SHORTCUT,
@@ -862,7 +863,7 @@ const PromptLanguageCommands = ({
 
       formData.append('lang', lang);
 
-      const response = await fetch('/api/locale', {
+      const response = await fetch(formatPath('/api/locale'), {
         method: 'post',
         body: formData,
       });

apps/remix/app/components/general/document-signing/document-signing-auth-account.tsx

@@ -1,4 +1,5 @@
 import { authClient } from '@documenso/auth/client';
+import { formatPath } from '@documenso/lib/constants/app';
 import { Alert, AlertDescription } from '@documenso/ui/primitives/alert';
 import { Button } from '@documenso/ui/primitives/button';
 import { DialogFooter } from '@documenso/ui/primitives/dialog';
@@ -34,7 +35,9 @@ export const DocumentSigningAuthAccount = ({
       const currentPath = `${window.location.pathname}${window.location.search}${window.location.hash}`;
 
       await authClient.signOut({
-        redirectPath: `/signin?returnTo=${encodeURIComponent(currentPath)}#embedded=true&email=${isDirectTemplate ? '' : email}`,
+        redirectPath: formatPath(
+          `/signin?returnTo=${encodeURIComponent(currentPath)}#embedded=true&email=${isDirectTemplate ? '' : email}`,
+        ),
       });
     } catch {
       setIsSigningOut(false);

apps/remix/app/components/general/document-signing/document-signing-auth-page.tsx

@@ -1,4 +1,5 @@
 import { authClient } from '@documenso/auth/client';
+import { formatPath } from '@documenso/lib/constants/app';
 import { Button } from '@documenso/ui/primitives/button';
 import { useToast } from '@documenso/ui/primitives/use-toast';
 import { msg } from '@lingui/core/macro';
@@ -21,10 +22,10 @@ export const DocumentSigningAuthPageView = ({ email, emailHasAccount }: Document
     try {
       setIsSigningOut(true);
 
-      let redirectPath = '/signin';
+      let redirectPath = formatPath('/signin');
 
       if (email) {
-        redirectPath = emailHasAccount ? `/signin#email=${email}` : `/signup#email=${email}`;
+        redirectPath = emailHasAccount ? formatPath(`/signin#email=${email}`) : formatPath(`/signup#email=${email}`);
       }
 
       await authClient.signOut({

apps/remix/app/root.tsx

@@ -1,5 +1,6 @@
 import { getOptionalSession } from '@documenso/auth/server/lib/utils/get-session';
 import { SessionProvider } from '@documenso/lib/client-only/providers/session';
+import { getBasePath } from '@documenso/lib/constants/app';
 import { APP_I18N_OPTIONS, type SupportedLanguageCodes } from '@documenso/lib/constants/i18n';
 import { createPublicEnv } from '@documenso/lib/utils/env';
 import { extractLocaleData } from '@documenso/lib/utils/i18n';
@@ -20,7 +21,6 @@ import {
   useMatches,
 } from 'react-router';
 import { PreventFlashOnWrongTheme, ThemeProvider, useTheme } from 'remix-themes';
-
 import type { Route } from './+types/root';
 import stylesheet from './app.css?url';
 import { GenericErrorLayout } from './components/general/generic-error-layout';
@@ -68,6 +68,7 @@ export async function loader({ context, request }: Route.LoaderArgs) {
       lang,
       theme: getTheme(),
       disableAnimations,
+      basePath: getBasePath(),
       // Surface the per-request CSP nonce produced by `securityHeadersMiddleware` so all
       // SSR-rendered <script>/<style> elements in this layout (and child
       // routes that need it) can carry the matching nonce attribute.
@@ -90,10 +91,10 @@ export async function loader({ context, request }: Route.LoaderArgs) {
 }
 
 export function Layout({ children }: { children: React.ReactNode }) {
-  const { theme } = useLoaderData<typeof loader>() || {};
+  const { theme, basePath } = useLoaderData<typeof loader>() || {};
 
   return (
-    <ThemeProvider specifiedTheme={theme} themeAction="/api/theme">
+    <ThemeProvider specifiedTheme={theme} themeAction={`${basePath ?? ''}/api/theme`}>
       <LayoutContent>{children}</LayoutContent>
     </ThemeProvider>
   );
@@ -111,6 +112,8 @@ export function LayoutContent({ children }: { children: React.ReactNode }) {
 
   const [theme] = useTheme();
 
+  const basePath = data.basePath ?? '';
+
   // Recipient routes (signing pages) put `documenso-branded` on <body> so the
   // <style> block from `RecipientBranding` applies to BOTH the main tree and
   // any portaled content (Radix dialogs/popovers/dropdowns mount outside the
@@ -126,11 +129,11 @@ export function LayoutContent({ children }: { children: React.ReactNode }) {
     <html translate="no" lang={lang} data-theme={theme} className={theme ?? ''} suppressHydrationWarning>
       <head>
         <meta charSet="utf-8" />
-        <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png" />
-        <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png" />
-        <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png" />
+        <link rel="apple-touch-icon" sizes="180x180" href={`${basePath}/apple-touch-icon.png`} />
+        <link rel="icon" type="image/png" sizes="32x32" href={`${basePath}/favicon-32x32.png`} />
+        <link rel="icon" type="image/png" sizes="16x16" href={`${basePath}/favicon-16x16.png`} />
         <meta name="viewport" content="width=device-width, initial-scale=1" />
-        <link rel="manifest" href="/site.webmanifest" />
+        <link rel="manifest" href={`${basePath}/site.webmanifest`} />
         <meta name="google" content="notranslate" />
         <Meta />
         <Links nonce={nonce(cspNonce)} />

apps/remix/app/routes/embed+/playground.tsx

@@ -5,8 +5,9 @@
  *
  * No translations required.
  */
-import { useCallback, useEffect, useRef, useState } from 'react';
 
+import { formatPath } from '@documenso/lib/constants/app';
+import { useCallback, useEffect, useRef, useState } from 'react';
 import { useNavigate, useSearchParams } from 'react-router';
 
 export const loader = () => {
@@ -147,7 +148,7 @@ export default function EmbedPlaygroundPage() {
       return inputToken;
     }
 
-    const response = await fetch('/api/v2/embedding/create-presign-token', {
+    const response = await fetch(formatPath('/api/v2/embedding/create-presign-token'), {
       method: 'POST',
       headers: {
         Authorization: `Bearer ${inputToken}`,