from __future__ import annotations
from typing import Any
import time

from deltaforge_mvp.core import PlanDelta


class Backtester:
    def __init__(self, seed: int | None = None):
        self.seed = seed

    def replay(self, plan: PlanDelta) -> Any:
        # Minimal deterministic replay: just echo basic info
        return {
            "status": "replayed",
            "venue": plan.venue,
            "delta_count": len(plan.deltas),
            "timestamp": time.time(),
        }