"""Which rows of sweep_full.json changed when the baselines moved to the library?

Only 'chandrupatla' and 'brent' may change: every configuration of ours and every
other baseline is deterministic and untouched by the switch, so any other difference
is a regression, not a consequence.

    python -u diff_sweeps.py OLD.json NEW.json
"""
from __future__ import annotations

import json
import sys


def main(old_path, new_path):
    old = {r["label"]: r for r in json.load(open(old_path, encoding="utf8"))}
    new = {r["label"]: r for r in json.load(open(new_path, encoding="utf8"))}
    print(f"rows: old {len(old)}, new {len(new)}; only in old: {sorted(set(old) - set(new))}"
          f"; only in new: {sorted(set(new) - set(old))}")
    changed = []
    for lbl in sorted(set(old) & set(new)):
        for s in ("APS", "CHA"):
            if old[lbl][s]["per"] != new[lbl][s]["per"]:
                changed.append((lbl, s, old[lbl][s]["total"], new[lbl][s]["total"],
                                old[lbl][s]["solved"], new[lbl][s]["solved"],
                                old[lbl][s]["over"], new[lbl][s]["over"]))
    for c in changed:
        print(f"  CHANGED {c[0]:<14} {c[1]}: total {c[2]} -> {c[3]}, solved {c[4]} -> {c[5]}, "
              f"over2x {c[6]} -> {c[7]}")
    unexpected = [c for c in changed if c[0] not in ("chandrupatla", "brent")]
    print(f"unexpected changes: {len(unexpected)}")
    return changed, unexpected


if __name__ == "__main__":
    main(sys.argv[1], sys.argv[2])