2 files changed, 54 insertions, 1 deletions

diff --git a/systems/workspace/src/workspace/error.rs b/systems/workspace/src/workspace/error.rs
index 495558b..0910392 100644
--- a/systems/workspace/src/workspace/error.rs
+++ b/systems/workspace/src/workspace/error.rs
@@ -1,5 +1,6 @@
 use asset_system::error::{DataApplyError, DataReadError, DataWriteError, HandleLockError};
 use framework::space::error::SpaceError;
+use sheet_system::index_source::error::IDAliasError;
 
 #[derive(thiserror::Error, Debug)]
 pub enum WorkspaceOperationError {
@@ -26,6 +27,9 @@ pub enum WorkspaceOperationError {
 
     #[error("Data apply error: {0}")]
     DataApply(#[from] DataApplyError),
+
+    #[error("ID alias error: {0}")]
+    IDAliasError(#[from] IDAliasError),
 }
 
 impl From<SpaceError> for WorkspaceOperationError {
diff --git a/systems/workspace/src/workspace/manager.rs b/systems/workspace/src/workspace/manager.rs
index 9e319a1..528f266 100644
--- a/systems/workspace/src/workspace/manager.rs
+++ b/systems/workspace/src/workspace/manager.rs
@@ -1,7 +1,8 @@
 use crate::workspace::{Workspace, config::WorkspaceConfig, error::WorkspaceOperationError};
 use asset_system::asset::ReadOnlyAsset;
-use constants::workspace::files::workspace_file_config;
+use constants::workspace::{dirs::workspace_dir_id_mapping, files::workspace_file_config};
 use framework::space::Space;
+use sheet_system::index_source::{IndexSource, alias::IndexSourceAliasesManager};
 
 pub struct WorkspaceManager {
     space: Space<Workspace>,
@@ -35,4 +36,52 @@ impl WorkspaceManager {
         let asset = ReadOnlyAsset::from(config_path);
         Ok(asset)
     }
+
+    /// Attempt to convert an index source to a remote namespace.
+    /// This method takes an `IndexSource` and tries to map it to a remote namespace
+    /// using the workspace's ID alias directory. If not found, the original
+    /// `IndexSource` is returned as a fallback.
+    ///
+    /// - `index_source` - The index source to convert
+    /// - `Result<IndexSource, WorkspaceOperationError>` - The converted index source on success,
+    ///   or the original index source if alias fails. Returns an error if there's
+    ///   a problem accessing the workspace directory.
+    pub async fn try_to_remote_index(
+        &self,
+        index_source: IndexSource,
+    ) -> Result<IndexSource, WorkspaceOperationError> {
+        let aliases_dir = self.get_space().local_path(workspace_dir_id_mapping())?;
+        Ok(match index_source.to_remote_namespace(aliases_dir).await {
+            Ok(index_source) => index_source,
+            Err((index_source, _)) => index_source,
+        })
+    }
+
+    /// Write a alias between local and remote IDs
+    pub async fn write_id_alias(
+        &self,
+        local_id: u32,
+        remote_id: u32,
+    ) -> Result<(), WorkspaceOperationError> {
+        let aliases_dir = self.get_space().local_path(workspace_dir_id_mapping())?;
+        IndexSourceAliasesManager::write_alias(aliases_dir, local_id, remote_id)
+            .await
+            .map_err(|e| WorkspaceOperationError::IDAliasError(e))
+    }
+
+    /// Delete a alias between local and remote IDs
+    pub async fn delete_id_alias(&self, local_id: u32) -> Result<(), WorkspaceOperationError> {
+        let aliases_dir = self.get_space().local_path(workspace_dir_id_mapping())?;
+        IndexSourceAliasesManager::delete_alias(aliases_dir, local_id)
+            .await
+            .map_err(|e| WorkspaceOperationError::IDAliasError(e))
+    }
+
+    /// Check if a alias exists between local and remote IDs
+    pub async fn id_aliases_exists(&self, local_id: u32) -> Result<bool, WorkspaceOperationError> {
+        let aliases_dir = self.get_space().local_path(workspace_dir_id_mapping())?;
+        IndexSourceAliasesManager::alias_exists(aliases_dir, local_id)
+            .await
+            .map_err(|e| WorkspaceOperationError::IDAliasError(e))
+    }
 }