import asyncio
import time
from typing import Dict, Any

class LangGraphEngine:
    """Orchestrates LangGraph pipeline executions for the AgentOS API."""
    
    def __init__(self):
        # This is where you would import and setup your LangGraph workflows
        # e.g., from tradingagents.graph.setup import setup_trading_graph
        pass

    async def run_scan(self, run_id: str, params: Dict[str, Any]):
        print(f"Engine: Starting SCAN {run_id} with params {params}")
        # Placeholder for actual scanner graph execution
        await asyncio.sleep(15)
        print(f"Engine: SCAN {run_id} completed")

    async def run_pipeline(self, run_id: str, params: Dict[str, Any]):
        print(f"Engine: Starting PIPELINE {run_id} with params {params}")
        # Placeholder for actual analysis pipeline execution
        await asyncio.sleep(20)
        print(f"Engine: PIPELINE {run_id} completed")

    async def run_portfolio(self, run_id: str, params: Dict[str, Any]):
        print(f"Engine: Starting PORTFOLIO rebalance {run_id} with params {params}")
        # Placeholder for actual portfolio manager graph execution
        await asyncio.sleep(10)
        print(f"Engine: PORTFOLIO {run_id} completed")

    async def run_auto(self, run_id: str, params: Dict[str, Any]):
        print(f"Engine: Starting AUTO {run_id} with params {params}")
        # Placeholder for full automated trading cycle
        await asyncio.sleep(30)
        print(f"Engine: AUTO {run_id} completed")