"""Save version migrations."""
from __future__ import annotations
from typing import Any, Dict

CURRENT = 1

def migrate(state: Dict[str, Any]) -> Dict[str, Any]:
    v = int(state.get("meta", {}).get("save_version", 0) or 0)
    if v < 1:
        state.setdefault("meta", {})["save_version"] = 1
        state.setdefault("flags", {})
        state.setdefault("unlocks", {"furniture_ids": [], "product_ids": []})
        v = 1
    state["meta"]["save_version"] = CURRENT
    return state
# reseal-product R146