Function canApplyEditHistoryEntry

packages/studio/src/utils/editHistory.ts:150–162

(
  entry: EditHistoryEntry,
  direction: EditHistoryDirection,
  currentHashes: Record<string, string>,
)

}

export function canApplyEditHistoryEntry(
  entry: EditHistoryEntry,
  direction: EditHistoryDirection,
  currentHashes: Record<string, string>,
): EditHistoryApplyCheck {
  for (const [path, snapshot] of Object.entries(entry.files)) {
    const expected = direction === "undo" ? snapshot.afterHash : snapshot.beforeHash;
    if (currentHashes[path] !== expected) {
      return { ok: false, reason: "content-mismatch", path };
    }
  }
  return { ok: true };
}

export function undoEditHistory(
  state: EditHistoryState,