refactor(dag): Audit and cleanup dag_engine.py

src/dag_engine.py

@@ -61,6 +61,14 @@ class TrackDAG:
        changed = True
        break
 
+ def is_ticket_ready(self, ticket: Ticket) -> bool:
+  """Returns True if all dependencies of the ticket are completed."""
+  for dep_id in ticket.depends_on:
+   dep = self.ticket_map.get(dep_id)
+   if not dep or dep.status != 'completed':
+    return False
+  return True
+
  def get_ready_tasks(self) -> List[Ticket]:
   """
         Returns a list of tickets that are in 'todo' status and whose dependencies are all 'completed'.
@@ -69,16 +77,8 @@ class TrackDAG:
         """
   ready = []
   for ticket in self.tickets:
-   if ticket.status == 'todo':
+   if ticket.status == 'todo' and self.is_ticket_ready(ticket):
-   # Check if all dependencies exist and are completed
+    ready.append(ticket)
-    all_done = True
-    for dep_id in ticket.depends_on:
-     dep = self.ticket_map.get(dep_id)
-     if not dep or dep.status != 'completed':
-      all_done = False
-      break
-    if all_done:
-     ready.append(ticket)
   return ready
 
  def has_cycle(self) -> bool:
@@ -172,16 +172,8 @@ class ExecutionEngine:
             task_id: The ID of the task to approve.
         """
   ticket = self.dag.ticket_map.get(task_id)
-  if ticket and ticket.status == "todo":
+  if ticket and ticket.status == "todo" and self.dag.is_ticket_ready(ticket):
-  # Check if dependencies are met first
+   ticket.status = "in_progress"
-   all_done = True
-   for dep_id in ticket.depends_on:
-    dep = self.dag.ticket_map.get(dep_id)
-    if not dep or dep.status != "completed":
-     all_done = False
-     break
-   if all_done:
-    ticket.status = "in_progress"
 
  def update_task_status(self, task_id: str, status: str) -> None:
   """