#  Copyright 2026 zhaoxi826
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.


from pretor.utils.ray_hook import ray_actor_hook
from fastapi import APIRouter, WebSocket, WebSocketDisconnect


workflow_router = APIRouter(prefix="/api/v1/workflow", tags=["workflow"])

@workflow_router.websocket("/ws/{event_id}")
async def get_workflow(websocket: WebSocket, event_id: str):
    await websocket.accept()
    global_state_machine = ray_actor_hook("global_state_machine")
    try:
        while True:
            await websocket.send(await global_state_machine.get_workflow.remote(event_id))
            await websocket.send_text(await global_state_machine.get_pending.remote(event_id))
            response = await websocket.receive_text()
            await global_state_machine.put_received(event_id, response)
    except (WebSocketDisconnect, RuntimeError):
        pass