"""Fresh-process regenerative execution of a frozen quotient program."""
from __future__ import annotations
import argparse
import json
from pathlib import Path
import sys
from .core import Capsule, FrozenModel


def main() -> int:
    parser = argparse.ArgumentParser(description=__doc__)
    parser.add_argument("capsule", type=Path, help="JSON containing frozen program and surviving coded seed")
    parser.add_argument("--word", default="", help="comma-separated chronological action names")
    args = parser.parse_args()
    try:
        obj = json.loads(args.capsule.read_text(encoding="utf8"))
        status, seed = Capsule.from_json(obj["memory"]).recover()
        if status != "exact":
            print(json.dumps({"status": status, "output": None}))
            return 2
        model = FrozenModel.from_json(obj["program"], seed=seed)
        word = tuple(a for a in args.word.split(",") if a)
        print(json.dumps({"status": "exact", "output": model.run(word).tolist(),
                          "rank": len(seed), "source_state_present": False}))
        return 0
    except (ValueError, KeyError, OSError, TypeError) as exc:
        print(json.dumps({"status": "error", "detail": str(exc)}), file=sys.stderr)
        return 1

if __name__ == '__main__':
    raise SystemExit(main())