feat: migrate routing to rspace.online/rcal basePath

Move from standalone rcal.online domain to path-based routing under
rspace.online/rcal. Updates Traefik labels for primary path-based
routing while keeping subdomain routing for spaces on rcal.online.
Adds basePath /rcal to next.config.js and updates middleware to handle
both rcal.online and rspace.online subdomain patterns.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docker-compose.yml

@@ -11,6 +11,9 @@ services:
       - INFISICAL_CLIENT_ID=${INFISICAL_CLIENT_ID}
       - INFISICAL_CLIENT_SECRET=${INFISICAL_CLIENT_SECRET}
       - INFISICAL_PROJECT_SLUG=rcal-online
+      - GOOGLE_CLIENT_ID=${GOOGLE_CLIENT_ID}
+      - GOOGLE_CLIENT_SECRET=${GOOGLE_CLIENT_SECRET}
+      - GOOGLE_OAUTH_REDIRECT_URI=https://rspace.online/rcal/api/auth/google/callback
     depends_on:
       rcal-postgres:
         condition: service_healthy
@@ -23,10 +26,16 @@ services:
       - /tmp
     labels:
       - "traefik.enable=true"
-      - "traefik.http.routers.rcal.rule=Host(`rcal.jeffemmett.com`) || Host(`rcal.online`) || Host(`www.rcal.online`) || Host(`booking.xhiva.art`) || HostRegexp(`{subdomain:[a-z0-9-]+}.rcal.online`)"
+      # Primary: path-based routing under rspace.online
-      - "traefik.http.routers.rcal.priority=130"
+      - "traefik.http.routers.rcal.rule=(Host(`rspace.online`) || HostRegexp(`{subdomain:[a-z0-9-]+}.rspace.online`)) && PathPrefix(`/rcal`)"
+      - "traefik.http.routers.rcal.priority=140"
       - "traefik.http.routers.rcal.entrypoints=web"
       - "traefik.http.services.rcal.loadbalancer.server.port=3000"
+      # Subdomain routing for spaces: {space}.rcal.online
+      - "traefik.http.routers.rcal-spaces.rule=HostRegexp(`{subdomain:[a-z0-9-]+}.rcal.online`)"
+      - "traefik.http.routers.rcal-spaces.priority=130"
+      - "traefik.http.routers.rcal-spaces.entrypoints=web"
+      - "traefik.http.routers.rcal-spaces.service=rcal"
     networks:
       - traefik-public
       - rcal-internal

next.config.js

@@ -2,6 +2,7 @@
 const nextConfig = {
   reactStrictMode: true,
   output: 'standalone',
+  basePath: '/rcal',
 }
 
 module.exports = nextConfig

src/middleware.ts

@@ -5,10 +5,11 @@ import type { NextRequest } from 'next/server';
  * Middleware to handle subdomain-based routing.
  *
  * Routes:
- * - rcal.online -> landing page (/)
+ * - rspace.online/rcal/* -> primary (basePath handles this)
- * - www.rcal.online -> landing page (/)
+ * - rcal.online -> redirected by rspace-redirects to rspace.online/rcal
  * - demo.rcal.online -> calendar demo (/demo)
  * - <space>.rcal.online -> rewrite to /s/<space>
+ * - <space>.rspace.online/rcal/* -> rewrite to /s/<space>
  *
  * Also handles localhost for development.
  */
@@ -18,12 +19,22 @@ export function middleware(request: NextRequest) {
 
   let subdomain: string | null = null;
 
-  // Match production: <sub>.rcal.online
+  // Match subdomain from rcal.online: <sub>.rcal.online
-  const match = hostname.match(/^([a-z0-9][a-z0-9-]*[a-z0-9]|[a-z0-9])\.\w+\.online/);
+  const rcalMatch = hostname.match(/^([a-z0-9][a-z0-9-]*[a-z0-9]|[a-z0-9])\.rcal\.online/);
-  if (match && match[1] !== 'www') {
+  if (rcalMatch && rcalMatch[1] !== 'www') {
-    subdomain = match[1];
+    subdomain = rcalMatch[1];
-  } else if (hostname.includes('localhost')) {
+  }
-    // Development: <sub>.localhost:port
+
+  // Match subdomain from rspace.online: <sub>.rspace.online
+  if (!subdomain) {
+    const rspaceMatch = hostname.match(/^([a-z0-9][a-z0-9-]*[a-z0-9]|[a-z0-9])\.rspace\.online/);
+    if (rspaceMatch && rspaceMatch[1] !== 'www' && rspaceMatch[1] !== 'registry') {
+      subdomain = rspaceMatch[1];
+    }
+  }
+
+  // Development: <sub>.localhost:port
+  if (!subdomain && hostname.includes('localhost')) {
     const parts = hostname.split('.localhost')[0].split('.');
     if (parts.length > 0 && parts[0] !== 'localhost') {
       subdomain = parts[parts.length - 1];
@@ -31,7 +42,7 @@ export function middleware(request: NextRequest) {
   }
 
   if (subdomain && subdomain.length > 0) {
-    // demo.rcal.online → serve the calendar demo
+    // demo subdomain → serve the calendar demo
     if (subdomain === 'demo') {
       if (url.pathname === '/') {
         url.pathname = '/demo';