Add ref sheet VFS mapping to LatestInfo

This adds a reverse mapping from virtual file IDs to their actual paths
in reference sheets, which is needed for proper file resolution during
operations that reference files by ID.

2 files changed, 15 insertions, 4 deletions

diff --git a/crates/vcs_actions/src/actions/local_actions.rs b/crates/vcs_actions/src/actions/local_actions.rs
index d3f718d..8799930 100644
--- a/crates/vcs_actions/src/actions/local_actions.rs
+++ b/crates/vcs_actions/src/actions/local_actions.rs
@@ -24,7 +24,7 @@ use vcs_data::{
             vault_modified::sign_vault_modified,
         },
         member::MemberId,
-        sheet::{SheetData, SheetName},
+        sheet::{SheetData, SheetName, SheetPathBuf},
         vault::{
             config::VaultUuid,
             sheet_share::{Share, SheetShareId},
@@ -214,7 +214,12 @@ pub async fn update_to_latest_info_action(
 
             // RefSheet
             let ref_sheet_data = vault.sheet(&REF_SHEET_NAME.to_string()).await?.to_data();
-            latest_info.ref_sheet_content = ref_sheet_data;
+            latest_info.ref_sheet_content = ref_sheet_data.clone();
+            latest_info.ref_sheet_vfs_mapping = ref_sheet_data
+                .mapping()
+                .into_iter()
+                .map(|(path, file)| (file.id.clone(), path.clone()))
+                .collect::<HashMap<VirtualFileId, SheetPathBuf>>();
             latest_info.reference_sheets = ref_sheets;
 
             // Members
diff --git a/crates/vcs_data/src/data/local/latest_info.rs b/crates/vcs_data/src/data/local/latest_info.rs
index 27409be..a2456fc 100644
--- a/crates/vcs_data/src/data/local/latest_info.rs
+++ b/crates/vcs_data/src/data/local/latest_info.rs
@@ -11,8 +11,11 @@ use crate::{
     constants::{CLIENT_FILE_LATEST_INFO, CLIENT_FILE_LATEST_INFO_NOSET},
     data::{
         member::{Member, MemberId},
-        sheet::{SheetData, SheetName},
-        vault::sheet_share::{Share, SheetShareId},
+        sheet::{SheetData, SheetName, SheetPathBuf},
+        vault::{
+            sheet_share::{Share, SheetShareId},
+            virtual_file::VirtualFileId,
+        },
     },
 };
 
@@ -41,6 +44,9 @@ pub struct LatestInfo {
     /// Reference sheet data, indicating what files I can get from the reference sheet
     pub ref_sheet_content: SheetData,
 
+    /// Reverse mapping from virtual file IDs to actual paths in reference sheets
+    pub ref_sheet_vfs_mapping: HashMap<VirtualFileId, SheetPathBuf>,
+
     /// Shares in my sheets, indicating which external merge requests have entries that I can view
     pub shares_in_my_sheets: HashMap<SheetName, HashMap<SheetShareId, Share>>,