chore: remove lru (#5008)

* chore: remove lru

* chore: update logs

* chore: clippy

frontend/rust-lib/flowy-server/src/af_cloud/impls/database.rs

@@ -23,7 +23,7 @@ where
     object_id: &str,
     collab_type: CollabType,
     workspace_id: &str,
-  ) -> FutureResult<Vec<u8>, Error> {
+  ) -> FutureResult<Option<Vec<u8>>, Error> {
     let workspace_id = workspace_id.to_string();
     let object_id = object_id.to_string();
     let try_get_client = self.0.try_get_client();
@@ -36,10 +36,10 @@ where
         },
       };
       match try_get_client?.get_collab(params).await {
-        Ok(data) => Ok(data.doc_state.to_vec()),
+        Ok(data) => Ok(Some(data.doc_state.to_vec())),
         Err(err) => {
           if err.code == RecordNotFound {
-            Ok(vec![])
+            Ok(None)
           } else {
             Err(Error::new(err))
           }

frontend/rust-lib/flowy-server/src/local_server/impls/database.rs

@@ -1,5 +1,8 @@
 use anyhow::Error;
+use collab::preclude::Collab;
+use collab_entity::define::{DATABASE, DATABASE_ROW_DATA, WORKSPACE_DATABASES};
 use collab_entity::CollabType;
+use yrs::{Any, MapPrelim};
 
 use flowy_database_pub::cloud::{CollabDocStateByOid, DatabaseCloudService, DatabaseSnapshot};
 use lib_infra::future::FutureResult;
@@ -9,11 +12,40 @@ pub(crate) struct LocalServerDatabaseCloudServiceImpl();
 impl DatabaseCloudService for LocalServerDatabaseCloudServiceImpl {
   fn get_database_object_doc_state(
     &self,
-    _object_id: &str,
-    _collab_type: CollabType,
+    object_id: &str,
+    collab_type: CollabType,
     _workspace_id: &str,
-  ) -> FutureResult<Vec<u8>, Error> {
-    FutureResult::new(async move { Ok(vec![]) })
+  ) -> FutureResult<Option<Vec<u8>>, Error> {
+    let object_id = object_id.to_string();
+    // create the minimal required data for the given collab type
+    FutureResult::new(async move {
+      let data = match collab_type {
+        CollabType::Database => {
+          let collab = Collab::new(1, object_id, collab_type, vec![], false);
+          collab.with_origin_transact_mut(|txn| {
+            collab.insert_map_with_txn(txn, DATABASE);
+          });
+          collab.encode_collab_v1().doc_state.to_vec()
+        },
+        CollabType::WorkspaceDatabase => {
+          let collab = Collab::new(1, object_id, collab_type, vec![], false);
+          collab.with_origin_transact_mut(|txn| {
+            collab.create_array_with_txn::<MapPrelim<Any>>(txn, WORKSPACE_DATABASES, vec![]);
+          });
+          collab.encode_collab_v1().doc_state.to_vec()
+        },
+        CollabType::DatabaseRow => {
+          let collab = Collab::new(1, object_id, collab_type, vec![], false);
+          collab.with_origin_transact_mut(|txn| {
+            collab.insert_map_with_txn(txn, DATABASE_ROW_DATA);
+          });
+          collab.encode_collab_v1().doc_state.to_vec()
+        },
+        _ => vec![],
+      };
+
+      Ok(Some(data))
+    })
   }
 
   fn batch_get_database_object_doc_state(

frontend/rust-lib/flowy-server/src/supabase/api/database.rs

@@ -30,7 +30,7 @@ where
     object_id: &str,
     collab_type: CollabType,
     _workspace_id: &str,
-  ) -> FutureResult<Vec<u8>, Error> {
+  ) -> FutureResult<Option<Vec<u8>>, Error> {
     let try_get_postgrest = self.server.try_get_weak_postgrest();
     let object_id = object_id.to_string();
     let (tx, rx) = channel();
@@ -41,7 +41,7 @@ where
           let updates = FetchObjectUpdateAction::new(object_id.to_string(), collab_type, postgrest)
             .run_with_fix_interval(5, 10)
             .await?;
-          Ok(updates)
+          Ok(Some(updates))
         }
         .await,
       )

frontend/rust-lib/flowy-server/src/supabase/api/request.rs

@@ -284,7 +284,7 @@ pub async fn batch_get_updates_from_server(
         match parser_updates_form_json(record.clone(), &postgrest.secret()) {
           Ok(items) => {
             if items.is_empty() {
-              updates_by_oid.insert(oid.to_string(), DocStateSource::FromDocState(vec![]));
+              updates_by_oid.insert(oid.to_string(), DocStateSource::FromDisk);
             } else {
               let updates = items
                 .iter()