#!/usr/bin/env python3
"""Next-change visibility: of the classes each commit modifies, the share a context
generator showed *before* the commit. Reports the published baselines, or your own.

    python3 scripts/evaluate_history.py                      # agentkit and alphabetical
    python3 scripts/evaluate_history.py mine.jsonl           # yours

mine.jsonl holds one {"project": ..., "commit": "<sha>", "shown": [<qualified names>]}
per commit of data/history/commits.jsonl, computed from the parent commit only.
"""
import sys
from collections import defaultdict

from common import data, read_jsonl

commits = read_jsonl(data("history", "commits.jsonl"))
systems = {k: {(c["project"], c["commit"]): set(v) for c in commits for k2, v in c["shown_before"].items() if k2 == k} for k in ("agentkit", "alphabetical")}
if len(sys.argv) > 1:
    systems = {"yours": {(r["project"], r["commit"]): set(r["shown"]) for r in read_jsonl(sys.argv[1])}}
for name, shown in systems.items():
    per = defaultdict(lambda: [0, 0])
    for c in commits:
        modified = {m["qualified_name"] for m in c["modified"]}
        hit = len(modified & shown.get((c["project"], c["commit"]), set()))
        per[c["project"]][0] += hit
        per[c["project"]][1] += len(modified)
    hits = sum(v[0] for v in per.values())
    total = sum(v[1] for v in per.values())
    macro = sum(v[0] / v[1] for v in per.values() if v[1]) / len([v for v in per.values() if v[1]])
    print(f"{name}: micro {100 * hits / total:.1f} % ({hits}/{total}) · macro {100 * macro:.1f} % over {len(per)} projects")
    for p in sorted(per):
        h, t = per[p]
        print(f"  {p:<18} {100 * h / t:5.1f} % ({h}/{t})" if t else f"  {p:<18} —")