open-swe/agent/utils/thread_ops.py
amoussa1229 0cac1ad363 Adopt upstream modular webhook skeleton (#1621)
Apply the durable-interrupt-dispatch refactor: split the monolithic
webapp.py into a thin routing layer plus per-source handlers in
webhooks/{github,slack,linear}.py, and add completion.py, dispatch.py,
and reconcile.py. Reconcile fork divergence by keeping the Bedrock/
Fireworks cross-provider fallback, the no-agent-attribution prompt
policy, the dashboard-handoff re-export, and the Slack channel-info
cache. ci_autofix is restored on the new dispatch model in a later
commit.

Refs: #80
2026-06-30 21:04:51 +00:00

84 lines
3 KiB
Python

"""Shared LangGraph thread helpers for the dashboard.
The webhook triggers (Slack / Linear / GitHub) dispatch through
``agent.dispatch.dispatch_agent_run`` with ``multitask_strategy="interrupt"``,
so they no longer need a busy-check or an in-process lock. The store-queue
below is retained for the dashboard's deliberate "inject a follow-up into a
run that's already in flight" path (``thread_api.send_dashboard_message``).
"""
from __future__ import annotations
import logging
import os
from typing import Any
from langgraph_sdk import get_client
logger = logging.getLogger(__name__)
MAX_QUEUED_MESSAGES = 100
def langgraph_url() -> str:
return os.environ.get("LANGGRAPH_URL") or os.environ.get(
"LANGGRAPH_URL_PROD", "http://localhost:2024"
)
def langgraph_client():
return get_client(url=langgraph_url())
async def get_thread_active_status(thread_id: str) -> bool | None:
"""Return whether the thread is active, or None when status cannot be determined."""
try:
thread = await langgraph_client().threads.get(thread_id)
status = thread.get("status", "idle") if isinstance(thread, dict) else "idle"
logger.info("Thread %s status check: status=%s", thread_id, status)
return status == "busy"
except Exception as exc: # noqa: BLE001
logger.warning("Failed to get thread status for %s: %s", thread_id, exc)
return None
async def queue_message_for_thread(
thread_id: str, message_content: str | list[dict[str, Any]] | dict[str, Any]
) -> bool:
"""Queue a follow-up message for a busy thread (FIFO store namespace).
Used by the dashboard to inject a follow-up into a run that's already in
flight; webhook triggers use ``multitask_strategy="interrupt"`` instead.
"""
client = langgraph_client()
try:
namespace = ("queue", thread_id)
key = "pending_messages"
new_message = {"content": message_content}
existing_messages: list[dict[str, Any]] = []
try:
existing_item = await client.store.get_item(namespace, key)
if existing_item and existing_item.get("value"):
existing_messages = existing_item["value"].get("messages", [])
except Exception: # noqa: BLE001
logger.debug("No existing queued messages for thread %s", thread_id)
existing_messages.append(new_message)
if len(existing_messages) > MAX_QUEUED_MESSAGES:
existing_messages = existing_messages[-MAX_QUEUED_MESSAGES:]
logger.warning(
"Thread %s queue capped at %d messages (dropped oldest)",
thread_id,
MAX_QUEUED_MESSAGES,
)
await client.store.put_item(namespace, key, {"messages": existing_messages})
logger.info(
"Queued message for thread %s (total queued: %d)",
thread_id,
len(existing_messages),
)
return True
except Exception:
logger.exception("Failed to queue message for thread %s", thread_id)
return False