"""Fetch world news from RSS feeds and save for the daily brief page."""
import json
import os
import feedparser
from datetime import datetime, timezone, timedelta

OUTPUT = "/var/www/nav/data/news.json"
tz = timezone(timedelta(hours=8))

# RSS feeds - balanced selection of world news sources (Chinese weighted)
FEEDS = [
    {"name": "BBC World", "url": "http://feeds.bbci.co.uk/news/world/rss.xml", "lang": "en"},
    {"name": "\u65b0\u6d6a\u65b0\u95fb", "url": "https://rss.sina.com.cn/news/china.xml", "lang": "zh"},
    {"name": "\u6d8c\u62a5", "url": "https://www.ybai.com/wp-json/wp/v2/posts?per_page=10", "lang": "zh"},
    {"name": "BBC \u4e2d\u6587", "url": "https://www.bbc.com/zhongwen/simp/index.xml", "lang": "zh"},
    {"name": "HN", "url": "https://hnrss.org/frontpage?count=10", "lang": "en"},
    {"name": "Reuters", "url": "https://www.reutersagency.com/feed/", "lang": "en"},
]

MAX_PER_FEED = 10
MAX_TOTAL = 40


def fetch_news():
    items = []
    for feed_info in FEEDS:
        try:
            feed = feedparser.parse(feed_info["url"])
            for entry in feed.entries[:MAX_PER_FEED]:
                items.append({
                    "title": entry.get("title", ""),
                    "link": entry.get("link", ""),
                    "summary": entry.get("summary", "")[:200],
                    "published": entry.get("published", ""),
                    "source": feed_info["name"],
                    "lang": feed_info["lang"],
                })
            print(f"  {feed_info['name']}: {len(feed.entries[:MAX_PER_FEED])} items")
        except Exception as e:
            print(f"  {feed_info['name']}: ERROR - {e}")

    # Sort by published time (newest first), but keep feeds mixed
    items.sort(key=lambda x: x.get("published", ""), reverse=True)

    result = {
        "updated_at": datetime.now(tz).strftime("%Y-%m-%d %H:%M"),
        "total": len(items),
        "items": items[:MAX_TOTAL],
        "sources": [f["name"] for f in FEEDS],
    }

    os.makedirs(os.path.dirname(OUTPUT), exist_ok=True)
    with open(OUTPUT, "w", encoding="utf-8") as f:
        json.dump(result, f, ensure_ascii=False, indent=2)

    print(f"\nTotal: {len(items)} items -> {OUTPUT}")
    return result


if __name__ == "__main__":
    print(f"Fetching news at {datetime.now(tz).strftime('%Y-%m-%d %H:%M')}")
    fetch_news()