"""Stage B (2026-10-16), second part: the "근거표를 끝까지 읽었다" marker is written by a separate POST (sent by the page when the evidence
table has been scrolled to its end), not by merely opening the page (D4)."""
from pathlib import Path

P = Path(__file__).resolve().parents[2] / "web" / "app.py"
s = P.read_text(encoding="utf-8")
a = '''    store.wjson(p.dir / "confirm_view.json", {"sha": _targets_sha(p, targets), "at": store.now(), "n": len(targets)})
    rest = []'''
b = '''    rest = []'''
assert s.count(a) == 1
s = s.replace(a, b)
a2 = '''@app.route("/pier/<name>/confirm_matched", methods=["GET", "POST"])'''
b2 = '''@app.post("/pier/<name>/confirm_matched/read")
def confirm_matched_read(name):
    """Marker: the evidence table of the current target list was read to its end (the page posts this when the scroll box is at the bottom)."""
    p = pier_or_404(name)
    targets = matched_targets(p)
    store.wjson(p.dir / "confirm_view.json", {"sha": _targets_sha(p, targets), "at": store.now(), "n": len(targets)})
    return {"ok": True, "n": len(targets)}


@app.route("/pier/<name>/confirm_matched", methods=["GET", "POST"])'''
assert s.count(a2) == 1
s = s.replace(a2, b2)
P.write_text(s, encoding="utf-8")
print("patched")