"""Stage A (2026-10-16): web/app.py pier page metadata, F-field edit rule (D3) and V3 edit block; web/store.py edit log.
Backup in backup/2026-10-16_묶음개편A전/. Refuses to run twice."""
from pathlib import Path

APP = Path(__file__).resolve().parents[2]
A, S = APP / "web" / "app.py", APP / "web" / "store.py"


def patch(path, pairs):
    s = path.read_text(encoding="utf-8")
    assert "# stage A 2026-10-16" not in s, f"{path.name} already patched"
    for a, b in pairs:
        assert s.count(a) == 1, (path.name, a[:60])
        s = s.replace(a, b)
    path.write_text(s, encoding="utf-8")


patch(S, [(
    '    def set_section(self, which, key, value):',
    '''    def log_fixed_edit(self, which, key, paths, reason):
        """Record of an edit of fixed (F) fields with its reason (D3)  # stage A 2026-10-16"""
        log = rjson(self.dir / "edit_log.json", [])
        log.append({"at": now(), "section": f"{which}:{key}", "fixed_fields": paths, "reason": reason})
        wjson(self.dir / "edit_log.json", log)

    def set_section(self, which, key, value):''')])

patch(A, [
    ("from engine import recommend, reader, report_files  # noqa: E402", "from engine import recommend, reader, report_files, variability  # noqa: E402"),
    ('''    secs = []
    for s in p.sections():
        secs.append(dict(s, **p.section_state(s["file"], s["key"])))
''', '''    secs = []
    req = required(p)
    for s in p.sections():
        secs.append(dict(s, **p.section_state(s["file"], s["key"]), meta=p.section_meta(s["file"], s["key"]),
                         required=(s["file"], s["key"]) in req))
    origin_same = [s for s in secs if s["required"] and s["meta"]["origin"]]   # stage A 2026-10-16
'''),
    ('''    return render_template("pier.html", p=p, sections=secs, gates=gates, need=unconfirmed(p),''',
     '''    return render_template("pier.html", p=p, sections=secs, gates=gates, need=unconfirmed(p), origin_same=origin_same,
                           has_origin=bool(p.info.get("origin")), grades=variability.GRADES,'''),
    ('''    text = json.dumps(d[key], ensure_ascii=False, indent=1)
    if request.method == "POST":
        text = request.form["value"]
        try:
            p.set_section(which, key, json.loads(text))
            flash("저장했습니다. 확정하려면 '확정'을 누르세요.", "ok")
            return redirect(url_for("section", name=name, which=which, key=key))
        except (ValueError, json.JSONDecodeError) as e:
            flash(f"저장 안 됨: {e}", "fail")
    return render_template("section.html", p=p, which=which, key=key, text=text, st=p.section_state(which, key))''',
     '''    text = json.dumps(d[key], ensure_ascii=False, indent=1)
    meta = p.section_meta(which, key)
    if request.method == "POST":
        text = request.form["value"]
        reason = request.form.get("reason", "").strip()
        try:
            new = store.expand_chains(json.loads(text))
            if meta["grade"] == "V3":
                raise ValueError("생성 변수(V3)는 화면에서 직접 고칠 수 없습니다. 판독 스크립트를 다시 실행해 목록을 만든 뒤 반영하세요")
            fixed = ["(묶음 전체)"] if meta["grade"] == "F" and new != d[key] else variability.changed_fixed(d[key], new, meta["fixed_fields"])
            if fixed and not reason:
                raise ValueError(f"고정(F) 항목({', '.join(fixed)})을 바꾸면 같은 템플릿이 아닐 수 있습니다. 바꾸는 사유를 입력하세요")
            p.set_section(which, key, new)
            if fixed:
                p.log_fixed_edit(which, key, fixed, reason)
            flash("저장했습니다. 확정하려면 '확정'을 누르세요." + (" 고정 항목 변경 사유를 기록했습니다." if fixed else ""), "ok")
            return redirect(url_for("section", name=name, which=which, key=key))
        except (ValueError, json.JSONDecodeError) as e:
            flash(f"저장 안 됨: {e}", "fail")
    return render_template("section.html", p=p, which=which, key=key, text=text, st=p.section_state(which, key), meta=meta,
                           grades=variability.GRADES)'''),
    ('''def unconfirmed(p):''', '''def required(p):
    """Bundles any gate of the pier's scope needs (existing ones)."""
    return {(r["file"], r["key"]) for g in p.scope() for r in p.gate_requirements(g) if r["exists"]}


def unconfirmed(p):'''),
])
print("patched app.py, store.py")