from __future__ import annotations

from dataclasses import dataclass
from typing import Optional

from ..schema import SignalNode
import time


@dataclass
class PriceFeedAdapter:
    asset: str
    venue: str
    def generate_signal(self, price: float, timestamp: Optional[int] = None) -> SignalNode:
        ts = timestamp if timestamp is not None else int(time.time())
        # Simple heuristic: price above threshold yields a positive signal
        signal_type = "price_above_threshold" if price > 100 else "price_below_threshold"
        return SignalNode(asset=self.asset, venue=self.venue, signal_type=signal_type, timestamp=ts, quality=1.0)