"""Consequence check of the new diagnosis, read off the existing sweep_decision.json.

If the flat families are won by BISECTING (Chandrupatla bisects 93-100% there), then his
band inside our step - which refuses and bisects - must HELP on fun3-fun6 and HURT on
the families where our step is good.  Per-problem costs, band against no gate, same
similarity, scale and guard.  No new run: the numbers are the Linux sweep's.

    python -u diag_band_by_family.py
"""
from __future__ import annotations

import json
from collections import defaultdict


def main():
    with open("sweep_decision.json", encoding="utf8") as fh:
        rows = json.load(fh)
    by = {(r["spec"][1], r["spec"][5], r["spec"][3]): r for r in rows}
    for gu in ("project", "credit"):
        base = by[("ratio", "none", gu)]["CHA"]["per"]
        band = by[("ratio", "band", gu)]["CHA"]["per"]
        fam = defaultdict(lambda: [0, 0])
        for pid, (n0, ok0) in base.items():
            n1, ok1 = band[pid]
            k = pid.split(".")[0]
            fam[k][0] += n0 if ok0 else 200
            fam[k][1] += n1 if ok1 else 200
        print(f"guard={gu}:  family  no-gate  band   delta")
        for k in sorted(fam):
            a, b = fam[k]
            print(f"             {k:<6} {a:7d} {b:6d} {b - a:+6d}")
        print()


if __name__ == "__main__":
    main()