import asyncio
import logging
from datetime import datetime
from typing import Any

logger = logging.getLogger(__name__)

class BittensorBridge:
    """Bridge to Bittensor Decentralized Intelligence Network.

    Initial focus: SN51 (lium.io / Datura) for compute resource discovery.
    Philosophy: "Muscle for the Nervous System".
    """

    def __init__(self) -> None:
        self.sn51_api = "https://api.lium.io/v1" # Example endpoint for SN51 data
        self.last_discovery: datetime | None = None
        self.discovery_cache: dict[str, Any] = {}

    async def discover_resources(self, mining_type: str = "gpu") -> dict[str, Any]:
        """Scan SN51 for available compute resources.
        In this phase, this is a read-only scaffold fetching marketplace status.
        """
        try:
            # Mocking the discovery process for SN51
            # In production, this would use the Bittensor API or a subnet-specific gateway
            logger.info(f"🔍 Scanning Bittensor SN51 for {mining_type} resources...")

            # Simulated response from lium.io / Datura marketplace
            mock_data = {
                "subnet": 51,
                "name": "Datura / lium.io",
                "available_instances": 42,
                "pricing": {
                    "h100": "0.12 TAO/hr",
                    "a100_80gb": "0.08 TAO/hr",
                    "rtx_4090": "0.02 TAO/hr",
                },
                "status": "healthy",
                "timestamp": datetime.now().isoformat(),
            }

            self.discovery_cache = mock_data
            self.last_discovery = datetime.now()

            return mock_data
        except Exception as e:
            logger.error(f"Bittensor discovery failed: {e}")
            return {"status": "offline", "error": str(e)}

    def get_resource_quote(self, requirement: str) -> dict[str, Any] | None:
        """Return a pricing quote for a specific requirement based on cache."""
        if not self.discovery_cache:
            return None

        pricing = self.discovery_cache.get("pricing", {})
        if "heavy" in requirement.lower() or "llm" in requirement.lower():
            return {"type": "h100", "price": pricing.get("h100")}
        return {"type": "rtx_4090", "price": pricing.get("rtx_4090")}

_bridge: BittensorBridge | None = None

def get_bittensor_bridge() -> BittensorBridge:
    global _bridge
    if _bridge is None:
        _bridge = BittensorBridge()
    return _bridge

if __name__ == "__main__":
    # Test discovery
    bridge = get_bittensor_bridge()
    asyncio.run(bridge.discover_resources())
    print(f"Bittensor Status: {bridge.discovery_cache['status']}")
    quote = bridge.get_resource_quote("heavy llm training")
    if quote is not None:
        print(f"H100 Price: {quote.get('price')}")
