"""
selfcheck.py

Loads the installed model the way the server does and builds one deck.
The Docker build runs it right after installing the model files, so a
release this code can't load (a changed architecture, a newer tokenizer
format) fails the build instead of producing an image that crashes on
startup. Exits non-zero on any failure:

    python -m server.selfcheck
"""

from __future__ import annotations

import time

COMMANDER = "Meren of Clan Nel Toth"
DECKLIST = "1 Sol Ring\n1 Sakura-Tribe Elder\n4 Swamp"


def main() -> None:
    from server.deckbuilder import DeckBuilder
    from server.model_files import read_version

    start = time.perf_counter()
    builder = DeckBuilder(read_version())
    loaded = time.perf_counter()
    completion = builder.complete([COMMANDER], DECKLIST)
    total = completion.to_dict()["summary"]["total"]
    if total != 100:
        raise SystemExit(f"Selfcheck failed: built a {total}-card deck for {COMMANDER}, expected 100.")
    sha = (builder.version or {}).get("sha", "unknown")[:7]
    print(f"Selfcheck passed: model {sha} loaded in {loaded - start:.1f}s, "
          f"built a 100-card deck in {time.perf_counter() - loaded:.1f}s.")


if __name__ == "__main__":
    main()