restrict oss after enterprise

Author: nikhilsinhaparseable

src/storage/store_metadata.rs

@@ -129,9 +129,13 @@ pub async fn resolve_parseable_metadata(
             Err("Could not start the server because staging directory indicates stale data from previous deployment, please choose an empty staging directory and restart the server")
         }
         EnvChange::NewStaging(mut metadata) => {
+
+            if metadata.server_mode == Mode::Prism {
+                Err("Starting Parseable OSS is not permitted when Enterprise Mode is enabled. Please choose a different storage.")
+            }
             // if server is started in ingest mode,we need to make sure that query mode has been started
             // i.e the metadata is updated to reflect the server mode = Query
-            if metadata.server_mode== Mode::All && PARSEABLE.options.mode == Mode::Ingest {
+            else if metadata.server_mode== Mode::All && PARSEABLE.options.mode == Mode::Ingest {
                 Err("Starting Ingest Mode is not allowed, Since Query Server has not been started yet")
             } else {
                 create_dir_all(PARSEABLE.options.staging_dir())?;