#!/usr/bin/env python3
"""
全球公开新闻采集器
遵循"瞰宇"原则：精准、可溯、合规、稳健
"""

import json
import sys
from datetime import datetime
from typing import Dict, List, Any

class NewsCollector:
    """公开新闻采集与结构化处理"""

    def __init__(self):
        self.collection_log = {
            "start_time": datetime.now().isoformat(),
            "status": "initialized",
            "sources_attempted": [],
            "sources_success": [],
            "sources_failed": []
        }

    async def collect(self, keywords: List[str], sources: List[str] = None,
                     max_results: int = 10, region: str = "us-en") -> Dict[str, Any]:
        """
        采集公开新闻

        Args:
            keywords: 搜索关键词
            sources: 指定来源（可选）
            max_results: 最大结果数
            region: 地区代码

        Returns:
            结构化新闻数据 + 采集日志
        """
        self.collection_log["keywords"] = keywords
        self.collection_log["region"] = region
        self.collection_log["max_results"] = max_results

        # 使用 DuckDuckGo 搜索（公开搜索，无需API密钥）
        # 注意：这是模拟实现，实际调用需要通过 OpenClaw 的 web_search 工具
        results = []

        for keyword in keywords:
            query = keyword
            if sources and len(sources) > 0:
                # DuckDuckGo 支持限定来源的语法
                query += f" site:{sources[0]}" if len(sources) == 1 else ""

            # 记录尝试
            self.collection_log["["sources_attempted"]"].append({
                "keyword": keyword,
                "query": query,
                "timestamp": datetime.now().isoformat()
            })

            # 这里应该调用实际的 web_search
            # 由于是在脚本内部，返回结构供外部调用
            pass

        self.collection_log["status"] = "completed"
        self.collection_log["end_time"] = datetime.now().isoformat()

        return {
            "news_items": results,
            "collection_log": self.collection_log,
            "metadata": {
                "collector": "瞰宇-NewsCollector",
                "version": "1.0",
                "compliance_level": "public_only",
                "data_type": "open_source_intelligence"
            }
        }

    def generate_summary(self, news_items: List[Dict]) -> Dict[str, Any]:
        """生成采集摘要统计"""
        return {
            "total_items": len(news_items),
            "sources_count": len(set(item.get("source", "") for item in news_items)),
            "time_span": self._get_time_span(news_items)
        }

    def _get_time_span(self, items: List[Dict]) -> Dict[str, str]:
        """计算时间跨度"""
        # 简化实现
        return {"start": "", "end": ""}

def main():
    """命令行接口"""
    if len(sys.argv) < 2:
        print("Usage: news_collector.py <keyword> [max_results]")
        sys.exit(1)

    collector = NewsCollector()
    keywords = [sys.argv[1]]
    max_results = int(sys.argv[2]) if len(sys.argv) > 2 else 10

    result = collector.collect(keywords=keywords, max_results=max_results)
    print(json.dumps(result, indent=2, ensure_ascii=False))

if __name__ == "__main__":
    main()