ipfs_tonga_laws / scrapers /_to_densify_articles.py
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#!/usr/bin/env python3
"""TO Cap/Section densify on existing instruments (offline, no re-fetch / no WARC).
Tonga AGO Acts/gazettes (ago.gov.to) — NZ-style ``1. Short Title -``
bodies after BE IT ENACTED / ANALYSIS TOC. LEAN Cap: write only when article
count rises. Official pack text only.
"""
from __future__ import annotations
import json
import re
import sys
from pathlib import Path
sys.path.insert(0, str(Path(__file__).resolve().parent))
from common import ROOT, INDEX_FIELDS, atomic_write
from world_lib import split_custom
ART = re.compile(
r"(?im)^\s*((?:Article|Art\.?|Section|Sec\.?|SECTION|SCHEDULE|Schedule|PART|Part|CHAPTER|Chapter)\s+[0-9IVXLC]+[A-Za-z]?\b|"
r"\d+[A-Za-z]?\.\s*[-–—~]?\s*[A-Z]|"
r"\d+[A-Za-z]?\.\s+[A-Z][A-Za-z0-9'’()\-/,& ]{1,80}\.?\s*$|"
r"\d+[A-Za-z]?\.\s+(?:This Act|In this Act|These |Subject to|Notwithstanding|Except as|Unless )\b"
r")"
)
ART_STRICT = re.compile(
r"(?im)^\s*((?:Article|Art\.?|Section|Sec\.?|SECTION)\s+[0-9]+[A-Za-z]?\b|"
r"\d+[A-Za-z]?\.\s*[-–—~]\s*[A-Z]|"
r"\d+[A-Za-z]?\.\s+(?:Short Title|Short title|Interpretation|Definitions|Citation|"
r"This Act|In this Act|Application|Commencement)\b)"
)
TAG = "to_cap_section_v1"
def prefer_enacting_body(text: str) -> str:
if not text:
return text
m = re.search(r"(?is)BE IT ENACTED.{0,500}?as follows\s*:", text)
if m and m.end() < len(text) - 120:
rest = text[m.end() :]
if len(rest) > len(text) * 0.2:
return rest
m = re.search(r"(?is)BE IT ENACTED[^\n]*\n", text)
if m and m.end() < len(text) - 200:
rest = text[m.end() :]
arr = re.search(r"(?i)\bANALYSIS\b|ARRANGEMENT OF", rest[:2000])
if not arr and len(rest) > len(text) * 0.2:
return rest
text = rest
ones = list(re.finditer(r"(?im)^\s*1\.\s+Short Title\b", text))
if len(ones) >= 2:
return text[ones[-1].start() :]
if len(ones) == 1 and ones[0].start() > 150:
return text[ones[0].start() :]
return text
def pick_docs(text: str, rid: str, url: str, date):
body = prefer_enacting_body(text)
d_lean = split_custom(body, rid, url, date, ART)
d_strict = split_custom(body, rid, url, date, ART_STRICT)
# if TOC skip was too aggressive, also try full text
if len(body) < len(text) * 0.35:
d_lean_f = split_custom(text, rid, url, date, ART)
d_strict_f = split_custom(text, rid, url, date, ART_STRICT)
if len(d_lean_f) >= len(d_lean):
d_lean = d_lean_f
if len(d_strict_f) >= len(d_strict):
d_strict = d_strict_f
if len(d_lean) >= len(d_strict):
return d_lean, "lean"
return d_strict, "strict"
def rebuild_index() -> tuple[int, int]:
inst = ROOT / "to" / "instruments"
index = ROOT / "to" / "index.jsonl"
rows = []
arts = 0
for p in sorted(inst.glob("*.json")):
try:
rec = json.loads(p.read_text(encoding="utf-8"))
except Exception:
continue
n = int(rec.get("article_count") or len(rec.get("documents") or []) or 0)
arts += n
line = {k: rec.get(k) for k in INDEX_FIELDS if k not in ("path", "bytes", "article_count")}
line["path"] = f"instruments/{p.name}"
line["article_count"] = n
line["bytes"] = p.stat().st_size
line["id"] = rec.get("id") or p.stem
rows.append(line)
atomic_write(index, "".join(json.dumps(r, ensure_ascii=False) + "\n" for r in rows))
return len(rows), arts
def main():
dry = "--dry-run" in sys.argv
root = ROOT / "to" / "instruments"
old_sum = new_sum = changed = 0
modes: dict[str, int] = {}
for path in sorted(root.glob("*.json")):
try:
rec = json.loads(path.read_text(encoding="utf-8"))
except Exception:
continue
text = rec.get("text") or ""
old = int(rec.get("article_count") or len(rec.get("documents") or []) or 0)
if len(text) < 80:
old_sum += old
new_sum += old
continue
rid = rec.get("id") or path.stem
url = rec.get("source_url") or ""
date = rec.get("date")
docs, mode = pick_docs(text, rid, url, date)
new = len(docs)
modes[mode] = modes.get(mode, 0) + 1
if new <= old:
old_sum += old
new_sum += old
continue
if new < 2 and old >= new:
old_sum += old
new_sum += old
continue
if dry:
changed += 1
old_sum += old
new_sum += new
continue
rec["documents"] = docs
rec["article_count"] = new
rec["article_extraction_status"] = "ok" if new >= 2 else ("missing" if not new else "partial")
meta = rec.get("metadata") or {}
meta["article_re"] = TAG
meta["article_re_mode"] = mode
meta["article_reprocess"] = "collect_to.py-cap-sections"
meta["article_split"] = "commonwealth-cap"
rec["metadata"] = meta
atomic_write(path, json.dumps(rec, ensure_ascii=False, indent=2) + "\n")
changed += 1
old_sum += old
new_sum += new
laws, arts = rebuild_index() if not dry else (0, 0)
if not dry:
# recount from files for report honesty
laws, arts = rebuild_index()
report = {
"cc": "to",
"tag": TAG,
"dry_run": dry,
"changed": changed,
"old_articles_sum": old_sum,
"new_articles_sum": new_sum,
"delta": new_sum - old_sum,
"laws": laws,
"articles": arts,
"modes": modes,
}
out = ROOT / "to" / "raw" / "densify_articles_report.json"
if not dry:
out.parent.mkdir(parents=True, exist_ok=True)
atomic_write(out, json.dumps(report, indent=2) + "\n")
print(json.dumps(report), flush=True)
if __name__ == "__main__":
main()