import asyncio
import json
import aiohttp
from typing import Dict, Any, List

class AsyncSwarmEngine:
    """
    Protocol 21: The Global Swarm Engine.
    Coordinates asynchronous pulses across the Matroska domain network.
    """
    def __init__(self, backend_url="http://localhost:5000"):
        self.backend_url = backend_url
        print(f"[ENGINE] Swarm Engine Initialized. Uplink: {self.backend_url}")

    async def broadcast(self, packet: Dict[str, Any]):
        """
        Broadcasting TENSOR_UPDATE to the Neural Link via the main server.
        """
        endpoint = f"{self.backend_url}/broadcast"
        try:
            async with aiohttp.ClientSession() as session:
                async with session.post(endpoint, json=packet, timeout=5) as resp:
                    if resp.status == 200:
                        return True
        except Exception as e:
            # Don't fail the mapper if the UI is offline
            pass
        return False

    async def pulse(self, node_id: str, payload: Any):
        """
        Sends a single pulse to a node in the swarm.
        """
        # Placeholder for complex agent-to-agent routing
        pass