Show password counts on iPhone

crates/storage/src/mobile_passwords.rs

@@ -179,13 +179,13 @@ fn mobile_row(node: &TreeNode) -> MobilePasswordRow {
         TreeNodeKind::Directory => (
             MobilePasswordRowKind::Directory,
             "directory",
-            "Folder",
+            entry_count_detail(node),
             "folder",
         ),
         TreeNodeKind::Entry => (
             MobilePasswordRowKind::Entry,
             "entry",
-            "Locked password",
+            "Locked password".to_owned(),
             "key.fill",
         ),
     };
@@ -193,12 +193,24 @@ fn mobile_row(node: &TreeNode) -> MobilePasswordRow {
         id: format!("{prefix}:{path}"),
         path,
         title: node.name().to_owned(),
-        detail: detail.to_owned(),
+        detail,
         system_image: system_image.to_owned(),
         kind,
     }
 }
 
+fn entry_count_detail(node: &TreeNode) -> String {
+    let count = entry_count(node);
+    format!("{count} {}", if count == 1 { "entry" } else { "entries" })
+}
+
+fn entry_count(node: &TreeNode) -> usize {
+    match node.kind() {
+        TreeNodeKind::Directory => node.children().iter().map(entry_count).sum(),
+        TreeNodeKind::Entry => 1,
+    }
+}
+
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 pub enum MobilePasswordErrorKind {
     MissingConfiguration,
@@ -311,12 +323,16 @@ mod tests {
                 .join("Personal/a very long password entry name.gpg"),
             b"ciphertext",
         )?;
+        fs::create_dir_all(temporary.path().join("Solo"))?;
+        fs::write(temporary.path().join("Solo/only.gpg"), b"ciphertext")?;
         let repository = Repository::open(temporary.path())?;
 
         let root = MobilePasswordPage::from_repository(&repository, None)?;
         assert_eq!(root.title(), "Passwords");
         assert_eq!(root.rows()[0].id(), "directory:Personal");
         assert_eq!(root.rows()[0].kind(), MobilePasswordRowKind::Directory);
+        assert_eq!(root.rows()[0].detail(), "2 entries");
+        assert_eq!(root.rows()[1].detail(), "1 entry");
 
         let finance = MobilePasswordPage::from_repository(&repository, Some("Personal/Finance"))?;
         assert_eq!(finance.id(), "directory:Personal/Finance");
@@ -325,6 +341,7 @@ mod tests {
             finance.rows()[0].id(),
             "directory:Personal/Finance/Very Deep"
         );
+        assert_eq!(finance.rows()[0].detail(), "0 entries");
         assert_eq!(finance.rows()[1].id(), "entry:Personal/Finance/bank");
         assert_eq!(finance.rows()[1].detail(), "Locked password");