import json, os, re, sys, time
sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
import scrape_unsc as U
CC="Security Council"; PBASE='989:"Documents and Publications"'
ROOT = os.environ.get("UNSC_CORPUS_ROOT", ".")
OUT=f"{ROOT}/documents"; mdir=f"{OUT}/metadata/marcxml"
def cnt(pool,p):
    r=pool.get(f"{U.BASE}/search",params={"cc":CC,"p":p,"rg":1,"ln":"en"},timeout=60)
    m=re.search(r"<strong>([0-9,]+)</strong>\s*records found",r.text,re.I)
    return int(m.group(1).replace(",","")) if m else 0
def page(pool,p,tag,so,sf,recs):
    jrec,pi=1,0
    while True:
        pi+=1
        raw=f"{mdir}/{tag}_{sf}{so}_p{pi:02d}.xml"
        if os.path.exists(raw) and os.path.getsize(raw)>200: xml=open(raw,"rb").read()
        else:
            r=pool.get(f"{U.BASE}/search",params={"cc":CC,"p":p,"of":"xm","rg":200,"jrec":jrec,"so":so,"sf":sf},timeout=90)
            xml=r.content; open(raw,"wb").write(xml)
        b=len(recs)
        for rec in U.parse_page(xml):
            pr=U.parse_record(rec)
            if pr.get("record_id"): recs[pr["record_id"]]=pr
        if len(recs)==b: break
        jrec+=200
def main():
    pool=U.ProxyPool(U.PROXY_FILE)
    recs={json.loads(l)["record_id"]:json.loads(l) for l in open(f"{OUT}/metadata/records.jsonl")}
    U.log(f"start with {len(recs)}")
    sorts=[("d","title"),("a","author"),("d","author"),("a","005"),("d","005"),("d","245")]
    for year in range(1946,2027):
        yc=cnt(pool,f"{PBASE} and year:{year}")
        if yc<=650: continue
        before=len(recs)
        for so,sf in sorts:
            page(pool,f"{PBASE} and year:{year}",str(year),so,sf,recs)
        U.log(f"{year}: +{len(recs)-before} (now {len(recs)})")
        tmp=f"{OUT}/metadata/records.jsonl.tmp"
        with open(tmp,"w") as fh:
            for r in sorted(recs.values(),key=lambda x:(x.get('date') or '',x.get('symbol') or '')):
                fh.write(json.dumps(r,ensure_ascii=False)+"\n")
        os.replace(tmp,f"{OUT}/metadata/records.jsonl")
    U.log(f"DONE supplement: {len(recs)}")
main()