#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
crawl_beihai_tzgg.py - 北海市产业园区改革发展办公室-通知公告
CMS: TRS (TRS_UEDITOR)
列表: /xxgkbm/bhsbbwjjqghjsglbgs/tzgg_59/ (1页20条，index_2.shtml 404)
详情: /xxgkbm/bhsbbwjjqghjsglbgs/tzgg_59/t{id}.shtml
标题: <meta ArticleTitle>
日期: <meta PubDate>
正文: div.article-con > div.trs_editor_view.TRS_UEDITOR > p
"""

import requests
import re
import sys
import os
import time
from bs4 import BeautifulSoup

DB_PATH = "/root/search.db"
BASE_URL = "http://www.beihai.gov.cn"
SITE_NAME = "北海市-园区办通知公告"
GROUP = "广西"
INDUSTRY = "环境公示"
LIST_URL = "/xxgkbm/bhsbbwjjqghjsglbgs/tzgg_59/"

HEADERS = {
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36",
}

SESSION = None


def get(url):
    global SESSION
    if SESSION is None:
        SESSION = requests.Session()
        SESSION.headers.update(HEADERS)
    try:
        r = SESSION.get(url, timeout=60)
        r.encoding = "utf-8"
        return r.text
    except Exception as e:
        print(f"ERR:{e}")
        return None


def parse_list(html):
    """Extract items from list page HTML"""
    items = []
    soup = BeautifulSoup(html, "html.parser")
    for li in soup.select("ul.ty-common-ul > li"):
        a = li.find("a", href=True)
        span = li.find("span")
        if a and span:
            href = a["href"]
            if href.startswith("./"):
                href = BASE_URL + LIST_URL + href[2:]
            elif href.startswith("/"):
                href = BASE_URL + href
            title = a.get("title", "") or a.get_text(strip=True)
            items.append((href, title, span.get_text(strip=True)))
    return items


def extract_detail(html, url):
    soup = BeautifulSoup(html, "html.parser")

    # Title from <meta ArticleTitle>
    title = ""
    meta_title = soup.find("meta", {"name": "ArticleTitle"})
    if meta_title:
        title = meta_title.get("content", "").strip()

    # Date from <meta PubDate>
    date_str = ""
    pubdate_meta = soup.find("meta", {"name": "PubDate"})
    if pubdate_meta:
        content = pubdate_meta.get("content", "")
        m = re.search(r"(\d{4}-\d{2}-\d{2})", content)
        if m:
            date_str = m.group(1)

    # Content from div.trs_editor_view
    content = ""
    editor = soup.select_one("div.trs_editor_view.TRS_UEDITOR, div.trs_editor_view")
    if editor:
        parts = []
        for p in editor.find_all("p"):
            txt = p.get_text(strip=True)
            if txt:
                parts.append(txt)
        for tbl in editor.find_all("table"):
            parts.append(str(tbl))
        if parts:
            content = "\n\n".join(parts)
        else:
            content = editor.get_text(separator="\n").strip()

    # Fallback: div.article-con
    if not content:
        ac = soup.find("div", class_="article-con")
        if ac:
            parts = []
            for p in ac.find_all("p"):
                txt = p.get_text(strip=True)
                if txt:
                    parts.append(txt)
            for tbl in ac.find_all("table"):
                parts.append(str(tbl))
            if parts:
                content = "\n\n".join(parts)

    if content:
        content = re.sub(r"&nbsp;", "", content)

    summary = content[:200] if content else ""
    return title, date_str, content, summary


def save_to_db(items_data):
    import sqlite3
    conn = sqlite3.connect(DB_PATH, timeout=10)
    c = conn.cursor()
    inserted = 0
    fts_batch = []
    for title, date_str, content, summary, page_url in items_data:
        try:
            c.execute("SELECT id FROM gov_raw WHERE page_url = ?", (page_url,))
            if c.fetchone():
                continue
            c.execute(
                """INSERT INTO gov_raw 
                   (page_url, title, site_name, publish_date, content, summary,
                    source_url, category, industry, group_name, script_name)
                   VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)""",
                (page_url, title, SITE_NAME, date_str, content, summary,
                 page_url, "通知公告", INDUSTRY, GROUP, "crawl_beihai_tzgg.py"),
            )
            new_id = c.lastrowid
            if new_id:
                fts_batch.append((new_id, title, SITE_NAME, summary or ""))
            inserted += 1
        except Exception as e:
            print(f"  [DB ERROR] {title[:30]}: {e}")
    conn.commit()
    if fts_batch:
        for rid, title, site, summary in fts_batch:
            try:
                c.execute(
                    "INSERT OR IGNORE INTO gov_search(rowid, title, site_name, summary) VALUES (?, ?, ?, ?)",
                    (rid, title, site, summary),
                )
            except Exception as e:
                print(f"  [FTS ERROR] id={rid}: {e}")
        conn.commit()
        print(f"  FTS同步: {len(fts_batch)}条")
    conn.close()
    return inserted


def main():
    import argparse
    parser = argparse.ArgumentParser(description=f"{SITE_NAME}爬虫")
    parser.add_argument("--pages", type=int, default=1, help="爬取页数(共1页)")
    parser.add_argument("--full", action="store_true", help="全量爬取")
    args = parser.parse_args()

    print(f"[{time.strftime('%H:%M:%S')}] 开始爬取 {SITE_NAME}...", flush=True)

    html = get(BASE_URL + LIST_URL)
    if not html:
        print("列表页请求失败")
        return

    all_items = parse_list(html)
    print(f"列表: {len(all_items)}条", flush=True)

    if not all_items:
        print("无数据")
        return

    batch = []
    for href, title, date in all_items:
        detail_html = get(href)
        if not detail_html:
            continue
        dt, dd, content, summary = extract_detail(detail_html, href)
        # Use list date if detail date is empty
        if not dd:
            dd = date
        batch.append((dt or title, dd, content, summary, href))
        time.sleep(0.3)

    saved = save_to_db(batch)
    print(f"入库{saved}/{len(batch)}条")

    print(f"\n===== 完成 =====")
    print(f"新增入库: {saved} 条")
    print(f"站点: {SITE_NAME}")


if __name__ == "__main__":
    main()