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#!/usr/bin/env python3
"""Parse sbob-cmp-q-* job logs into quant_matrix.{json,md}.

Each eval_ensemble.py run prints a final table:
    val set       examples      loss       ppl
    spongebob         1434    2.0123      7.48
    ...
Rows = 11 val sets; we collect them per config (base / ensemble / 10 per-char).
"""
import json, re, subprocess, sys, os

NS = "sbob"
SLUGS = ["spongebob", "patrick", "squidward", "mr_krabs", "plankton",
         "sandy", "mrs_puff", "karen", "gary", "pearl", "_ensemble"]
# config key -> k8s job name
CONFIGS = {"base": "sbob-cmp-q-base", "ensemble": "sbob-cmp-q-ensemble"}
for s in SLUGS[:-1]:
    CONFIGS[s] = "sbob-cmp-q-" + s.replace("_", "-")

ROW_RE = re.compile(r"^(_?[a-z_]+)\s+(\d+)\s+([0-9.]+)\s+([0-9.]+)\s*$")

def logs(job):
    out = subprocess.run(
        ["kubectl", "-n", NS, "logs", f"job/{job}", "--tail=200"],
        capture_output=True, text=True)
    return out.stdout

def parse(text):
    rows = {}
    for ln in text.splitlines():
        m = ROW_RE.match(ln.strip())
        if m and m.group(1) in SLUGS:
            rows[m.group(1)] = {"examples": int(m.group(2)),
                                "loss": float(m.group(3)),
                                "ppl": float(m.group(4))}
    return rows

def main():
    matrix, missing = {}, []
    for cfg, job in CONFIGS.items():
        rows = parse(logs(job))
        if len(rows) != len(SLUGS):
            missing.append((cfg, sorted(set(SLUGS) - set(rows))))
        matrix[cfg] = rows
    out_dir = os.path.dirname(os.path.abspath(__file__))
    with open(os.path.join(out_dir, "quant_matrix.json"), "w") as f:
        json.dump(matrix, f, indent=2)

    cfg_order = ["base", "ensemble"] + SLUGS[:-1]
    # main table: rows = val sets, cols = configs, cell = loss, bold row-best
    lines = ["# Quant matrix — masked val loss (gemma-4-31B base vs LoRAs)",
             "",
             "Configs: `base` = no adapter; `ensemble` = all-speaker r=64 LoRA; "
             "others = dedicated per-character r=32 LoRAs. "
             "Each column is one 1-GPU job evaluating all 11 val sets "
             "(token-weighted mean masked NLL; lower is better). 2026-06-10.",
             "",
             "| val set \\ config | " + " | ".join(cfg_order) + " |",
             "|---|" + "---|" * len(cfg_order)]
    flags = []
    for slug in SLUGS:
        vals = {c: matrix.get(c, {}).get(slug, {}).get("loss") for c in cfg_order}
        present = {c: v for c, v in vals.items() if v is not None}
        best = min(present.values()) if present else None
        cells = []
        for c in cfg_order:
            v = vals[c]
            if v is None:
                cells.append("—")
                continue
            if v > 5 or v < 0.5:
                flags.append(f"{c} on {slug}: loss {v}")
            cells.append(f"**{v:.4f}**" if v == best else f"{v:.4f}")
        n = matrix.get("base", {}).get(slug, {}).get("examples", "?")
        lines.append(f"| {slug} (n={n}) | " + " | ".join(cells) + " |")

    # summary row: mean delta vs base across the 11 val sets, per config
    deltas = []
    for c in cfg_order:
        ds = [matrix[c][s]["loss"] - matrix["base"][s]["loss"]
              for s in SLUGS if s in matrix.get(c, {}) and s in matrix.get("base", {})]
        deltas.append(f"{sum(ds)/len(ds):+.4f}" if ds else "—")
    lines.append("| **mean Δ vs base (11 sets)** | " + " | ".join(deltas) + " |")

    # per-character summary: base vs dedicated vs ensemble on the char's own val set
    lines += ["", "## Ensemble vs dedicated, on each character's own val set", "",
              "| val set | base | dedicated | ensemble | ens Δ vs base | ens Δ vs dedicated |",
              "|---|---|---|---|---|---|"]
    for slug in SLUGS[:-1]:
        b = matrix.get("base", {}).get(slug, {}).get("loss")
        d = matrix.get(slug, {}).get(slug, {}).get("loss")
        e = matrix.get("ensemble", {}).get(slug, {}).get("loss")
        if None in (b, d, e):
            lines.append(f"| {slug} | — | — | — | — | — |")
            continue
        lines.append(f"| {slug} | {b:.4f} | {d:.4f} | {e:.4f} | "
                     f"{e-b:+.4f} | {e-d:+.4f} |")
    b = matrix.get("base", {}).get("_ensemble", {}).get("loss")
    e = matrix.get("ensemble", {}).get("_ensemble", {}).get("loss")
    if b is not None and e is not None:
        lines.append(f"| _ensemble (own set) | {b:.4f} | — | {e:.4f} | {e-b:+.4f} | — |")

    # sanity checks
    lines += ["", "## Sanity checks", ""]
    for slug, known in [("squidward", 1.935), ("spongebob", 1.882)]:
        v = matrix.get("ensemble", {}).get(slug, {}).get("loss")
        if v is None:
            lines.append(f"- ensemble on {slug}: MISSING (expected ~{known})")
        else:
            ok = abs(v - known) < 0.05
            lines.append(f"- ensemble on {slug}: {v:.4f} vs known {known} -> "
                         + ("OK" if ok else "MISMATCH"))
    lines.append("- degenerate cells (loss >5 or <0.5): "
                 + ("; ".join(flags) if flags else "none"))
    if missing:
        lines.append("- incomplete configs: " + "; ".join(
            f"{c} missing {m}" for c, m in missing))

    with open(os.path.join(out_dir, "quant_matrix.md"), "w") as f:
        f.write("\n".join(lines) + "\n")
    print(json.dumps({"missing": missing, "flags": flags}, indent=2))

if __name__ == "__main__":
    main()