Assisted Installer OVE UI shows transient blank page with Technology Preview spinner (#3341)

Signed-off-by: Elay Aharoni <elayaha@gmail.com>

Author: ElayAharoni

libs/ui-lib/lib/ocm/hooks/useInfraEnvId.ts

@@ -55,12 +55,12 @@ export default function useInfraEnvId(
   ]);
 
   React.useEffect(() => {
-    if (!clusterId) {
+    if (!clusterId && !isSingleClusterFeatureEnabled) {
       setError('Missing clusterId to load infrastructure environment');
     } else if (!infraEnvId) {
       void findInfraEnvId();
     }
-  }, [clusterId, findInfraEnvId, infraEnvId]);
+  }, [clusterId, findInfraEnvId, infraEnvId, isSingleClusterFeatureEnabled]);
 
   return { infraEnvId, error };
 }

libs/ui-lib/lib/ocm/services/InfraEnvsService.ts

@@ -21,7 +21,10 @@ const InfraEnvsService = {
       const { data: infraEnvs } = await InfraEnvsAPI.list(
         !isSingleClusterFeatureEnabled ? clusterId : '',
       );
-      if (infraEnvs.length > 0) {
+      if (isSingleClusterFeatureEnabled) {
+        return infraEnvs[0].id;
+      }
+      if (infraEnvs.length > 0 && clusterId) {
         InfraEnvCache.updateInfraEnvs(clusterId, infraEnvs);
         infraEnvId = InfraEnvCache.getInfraEnvId(clusterId, cpuArchitecture);
       }