153 lines
5.1 KiB
Python
153 lines
5.1 KiB
Python
"""Summarize policy news using DeepSeek AI.
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v2: back-fills pub_time from raw RSS data after AI summarization.
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"""
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import json, os, requests, re
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from datetime import datetime, timezone, timedelta
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from dateutil import parser as dtparser
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API_KEY = "sk-bbca4a0380d549389f0d27cdea0b5228"
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API_URL = "https://api.deepseek.com/v1/chat/completions"
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MODEL = "deepseek-v4-flash"
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RAW_FILE = "/var/www/nav/data/policy.json"
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OUTPUT = "/var/www/nav/data/policy_summary.json"
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tz = timezone(timedelta(hours=8))
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def load_raw():
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if not os.path.exists(RAW_FILE):
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return []
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with open(RAW_FILE) as f:
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data = json.load(f)
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return data.get("items", [])
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def build_time_lookup(raw_items):
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"""Build lookup: title -> pub_time (Beijing time string)."""
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lookup = {}
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for item in raw_items:
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title = item.get("title", "").strip()
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published = item.get("published", "").strip()
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if not title or not published:
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continue
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try:
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dt = dtparser.parse(published)
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if dt.tzinfo:
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dt = dt.astimezone(tz)
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else:
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dt = dt.replace(tzinfo=tz)
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now = datetime.now(tz)
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if dt.date() == now.date():
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time_str = dt.strftime("%H:%M")
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else:
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time_str = dt.strftime("%m-%d %H:%M")
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lookup[title] = time_str
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except Exception:
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continue
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return lookup
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def match_pub_time(items, lookup):
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for item in items:
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if "pub_time" in item:
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continue
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title = item.get("title", "").strip()
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if title in lookup:
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item["pub_time"] = lookup[title]
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else:
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for raw_title, time_val in lookup.items():
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short = min(len(raw_title), len(title))
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if short > 10 and (raw_title[:short] in title or title[:short] in raw_title):
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item["pub_time"] = time_val
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break
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def summarize(items):
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news_text = ""
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for i, item in enumerate(items[:150], 1):
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title = item.get("title", "")
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summary = item.get("summary", "")[:200].replace("<", "").replace(">", "")
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source = item.get("source", "")
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link = item.get("link", "")
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news_text += f"{i}. [{source}] {title}\n {summary}\n url: {link}\n\n"
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prompt = f"""你是一个资深的政策新闻编辑助手。精选当下最重要的中国政策新闻。
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## 选稿标准
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- 国务院常务会议、中央政治局会议等高层决策
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- 重要法律法规的颁布或修订
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- 部委级重大政策发布（发改委、财政部、央行、工信部等）
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- 经济政策调整（货币政策、财政政策、产业政策）
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- 民生政策（教育、医疗、住房、养老、就业）
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- 外交政策重大声明
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## 输出格式
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每条包含：
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- subtitle：15-30字完整标题（中文）
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- title：原标题（必须与原始新闻标题完全一致，这是时间匹配的关键）
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- source：来源
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- link：原文链接
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- summary：300-500字政策解读摘要，关键信息用**加粗**标出
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精选 **10-20 条** 最重要政策新闻。
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JSON格式: {{"categories": [{{"name":"政策速递","items":[{{"rank":1,"subtitle":"小标题","title":"原标题","source":"来源","link":"https://...","summary":"正文..."}}]}}]}}"""
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resp = requests.post(
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API_URL,
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headers={"Authorization": f"Bearer {API_KEY}", "Content-Type": "application/json"},
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json={"model": MODEL, "messages": [{"role": "user", "content": prompt}],
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"temperature": 0.3, "max_tokens": 20000},
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timeout=180,
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)
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if resp.status_code != 200:
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print(f"API error: {resp.status_code}")
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return None
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content = resp.json()["choices"][0]["message"]["content"].strip()
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if content.startswith("```"):
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lines = content.split("\n")
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content = "\n".join(lines[1:-1]) if lines[-1].strip() == "```" else "\n".join(lines[1:])
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try:
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return json.loads(content)
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except:
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content = re.sub(r',\s*}', '}', content)
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content = re.sub(r',\s*]', ']', content)
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try:
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return json.loads(content)
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except:
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print(f"JSON parse failed")
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return None
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if __name__ == "__main__":
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now = datetime.now(tz).strftime("%Y-%m-%d %H:%M")
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raw_items = load_raw()
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if not raw_items:
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print("No raw policy data")
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exit(0)
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print(f"Loaded {len(raw_items)} raw items. Summarizing...")
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data = summarize(raw_items)
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if not data:
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exit(1)
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# Back-fill pub_time
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time_lookup = build_time_lookup(raw_items)
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matched = 0
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for cat in data.get("categories", []):
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match_pub_time(cat["items"], time_lookup)
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matched += sum(1 for item in cat["items"] if "pub_time" in item)
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print(f"Matched pub_time for {matched} articles")
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result = {"updated_at": now, "categories": data.get("categories", [])}
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total = sum(len(c["items"]) for c in result["categories"])
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os.makedirs(os.path.dirname(OUTPUT), exist_ok=True)
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with open(OUTPUT, "w", encoding="utf-8") as f:
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json.dump(result, f, ensure_ascii=False, indent=2)
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print(f"Written {total} articles -> {OUTPUT}")
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