from __future__ import annotations
from typing import List
from ..dsl import LocalEvent, PlanDelta, OrderEvent, FillEvent
from ..replay import ReplayEngine

class ReplayHarness:
  """
  Tiny harness to run a deterministic replay end-to-end on a toy delta-stream.
  """
  def __init__(self, delta_stream: List[object], event_log: List[object]):
    self.engine = ReplayEngine(delta_stream, event_log)

  def run(self):
    return self.engine.replay()