Adds custom rewrite logic for hosted cal.com

apps/web/next.config.js

@@ -84,20 +84,63 @@ const nextConfig = {
     return config;
   },
   async rewrites() {
-    return [
-      {
-        source: "/:user/avatar.png",
-        destination: "/api/user/avatar?username=:user",
-      },
-      {
-        source: "/team/:teamname/avatar.png",
-        destination: "/api/user/avatar?teamname=:teamname",
-      },
-      /* TODO: have these files being served from another deployment or CDN {
-        source: "/embed/embed.js",
-        destination: process.env.NEXT_PUBLIC_EMBED_LIB_URL?,
-      }, */
-    ];
+    const rewrites = {
+      beforeFiles: [],
+      afterFiles: [
+        {
+          source: "/:user/avatar.png",
+          destination: "/api/user/avatar?username=:user",
+        },
+        {
+          source: "/team/:teamname/avatar.png",
+          destination: "/api/user/avatar?teamname=:teamname",
+        },
+        /* TODO: have these files being served from another deployment or CDN {
+          source: "/embed/embed.js",
+          destination: process.env.NEXT_PUBLIC_EMBED_LIB_URL?,
+        }, */
+      ],
+      fallback: [],
+    };
+
+    /** This logic es specific for our `cal.com` hosted version */
+    if (process.env.NEXT_PUBLIC_WEBAPP_URL === "https://app.cal.com") {
+      const CAL_WEBSITE_SUBDOMAIN_URL = "https://website.cal.com";
+      /* Homepage should go to website.cal.com */
+      rewrites.beforeFiles.push([
+        {
+          source: "/",
+          has: [
+            {
+              type: "header",
+              key: "referer",
+              value: `${process.env.NEXT_PUBLIC_WEBSITE_URL}/`,
+            },
+          ],
+          destination: `${CAL_WEBSITE_SUBDOMAIN_URL}/`,
+        },
+        {
+          source: "/_next/static/:static*",
+          has: [
+            {
+              type: "header",
+              key: "referer",
+              value: `${process.env.NEXT_PUBLIC_WEBSITE_URL}/`,
+            },
+          ],
+          destination: `${CAL_WEBSITE_SUBDOMAIN_URL}/_next/static/:static*`,
+        },
+      ]);
+      /* Everything else should fallback to website.cal.com */
+      rewrites.fallback.push([
+        {
+          source: "/:websitePage*",
+          destination: CAL_WEBSITE_SUBDOMAIN_URL + "/:websitePage*",
+        },
+      ]);
+    }
+
+    return rewrites;
   },
   async redirects() {
     const redirects = [