"""Toy DER Aggregator Adapter (Phase 0 MVP)."""
from dataclasses import dataclass
from typing import Dict, Any
import time


@dataclass
class DERAggregatorAdapter:
    aggregator_id: str
    def aggregate(self) -> Dict[str, Any]:
        # Simple deterministic aggregation sample
        ts = int(time.time())
        return {
            "aggregator_id": self.aggregator_id,
            "timestamp": ts,
            "total_power_kw": 500.0,  # fixed placeholder for deterministic behavior
            "status": "nominal",
        }