1 files changed, 25 insertions, 1 deletions
diff --git a/Omni/Task/Core.hs b/Omni/Task/Core.hs
index f7b7915..798f8fe 100644
--- a/Omni/Task/Core.hs
+++ b/Omni/Task/Core.hs
@@ -111,6 +111,28 @@ generateId = do
       encoded = toBase62 (fromIntegral microseconds)
   pure <| "t-" <> T.pack encoded
 
+-- Generate a child ID based on parent ID (e.g. "t-abc.1")
+generateChildId :: Text -> IO Text
+generateChildId parentId = do
+  tasks <- loadTasks
+  let children = filter (\t -> taskParent t == Just parentId) tasks
+      -- Find the max suffix
+      suffixes = mapMaybe (\t -> getSuffix parentId (taskId t)) children
+      nextSuffix = case suffixes of
+        [] -> 1
+        s -> maximum s + 1
+  pure <| parentId <> "." <> T.pack (show nextSuffix)
+
+getSuffix :: Text -> Text -> Maybe Int
+getSuffix parent childId =
+  if parent `T.isPrefixOf` childId && T.length childId > T.length parent
+    then
+       let rest = T.drop (T.length parent) childId
+       in if T.head rest == '.'
+             then readMaybe (T.unpack (T.tail rest))
+             else Nothing
+    else Nothing
+
 -- Convert number to base62 (0-9, a-z, A-Z)
 toBase62 :: Integer -> String
 toBase62 0 = "0"
@@ -192,7 +214,9 @@ saveTask task = do
 -- Create a new task
 createTask :: Text -> TaskType -> Maybe Text -> Maybe Text -> Priority -> [Dependency] -> IO Task
 createTask title taskType parent namespace priority deps = do
-  tid <- generateId
+  tid <- case parent of
+    Nothing -> generateId
+    Just pid -> generateChildId pid
   now <- getCurrentTime
   let task =
         Task