# -*- coding: utf-8 -*-
import urllib.request, ssl, re, io
from bs4 import BeautifulSoup
ctx=ssl.create_default_context(); ctx.check_hostname=False; ctx.verify_mode=ssl.CERT_NONE
def body(u):
    try:
        req=urllib.request.Request(u,headers={"User-Agent":"Mozilla/5.0"})
        raw=urllib.request.urlopen(req,context=ctx,timeout=20).read()
        soup=BeautifulSoup(raw,"html.parser")
        for sel in ["#content","#contents",".contents",".content"]:
            el=soup.select_one(sel)
            if el and len(el.get_text(strip=True))>30:
                # remove the breadcrumb / share / local-subnav noise by taking text after '프린트'
                txt=re.sub(r'\s+',' ',el.get_text(" ",strip=True))
                core=txt.split("프린트",1)[-1]
                return core.strip()[:260]
        return "(no content div)"
    except Exception as e:
        return "ERR:"+str(e)
pairs=[
 ("연혁(게시판vs페이지)","https://www.kdhc.co.kr/kdhc/bbs/B0000066/list.do?menuNo=200226","https://www.kdhc.co.kr/kdhc/main/contents.do?menuNo=200169"),
 ("기본방향(발전배열vs연료전지)","https://www.kdhc.co.kr/kdhc/main/contents.do?menuNo=200598","https://www.kdhc.co.kr/kdhc/main/contents.do?menuNo=200601"),
 ("기본요금(발전배열vs연료전지)","https://www.kdhc.co.kr/kdhc/main/contents.do?menuNo=200599","https://www.kdhc.co.kr/kdhc/main/contents.do?menuNo=200602"),
 ("사용량요금(발전배열vs연료전지)","https://www.kdhc.co.kr/kdhc/main/contents.do?menuNo=200600","https://www.kdhc.co.kr/kdhc/main/contents.do?menuNo=200603"),
]
out=io.open("_cmp3_out.txt","w",encoding="utf-8")
for nm,a,b in pairs:
    ca=body(a); cb=body(b)
    out.write(f"### {nm}  SAME={ca==cb and not ca.startswith('ERR')}\n  A: {ca}\n  B: {cb}\n\n")
out.close(); print("done")
