#!/usr/bin/env python3
"""
B站搜索推荐词接口
获取B站平台搜索框中的推荐词
"""

import requests
import json
import os
import argparse
from datetime import datetime
from typing import Dict, Any


class BilibiliSearchRecommendations:
    """B站搜索推荐词API封装类"""

    BASE_URL = "http://47.84.182.56:8001"
    TOOL_NAME = "Bilibili_Search_Recommendations"
    PLATFORM = "bilibili"  # 平台名称

    def __init__(self, results_dir: str = None):
        """
        初始化API客户端

        Args:
            results_dir: 结果输出目录，默认为项目根目录下的 data/search_recommendations 文件夹
        """
        self.api_url = f"{self.BASE_URL}/tools/call/{self.TOOL_NAME}"

        # 设置结果输出目录
        if results_dir:
            self.results_base_dir = results_dir
        else:
            # 默认使用项目根目录的 data/search_recommendations 文件夹
            script_dir = os.path.dirname(os.path.abspath(__file__))
            project_root = os.path.dirname(os.path.dirname(script_dir))
            self.results_base_dir = os.path.join(project_root, "data", "search_recommendations")

    def get_recommendations(self, keyword: str, timeout: int = 30) -> Dict[str, Any]:
        """
        获取B站搜索推荐词

        Args:
            keyword: 搜索关键词
            timeout: 请求超时时间（秒），默认30秒

        Returns:
            API响应的JSON数据

        Raises:
            requests.exceptions.RequestException: 请求失败时抛出异常
        """
        payload = {
            "keyword": keyword
        }

        try:
            response = requests.post(
                self.api_url,
                json=payload,
                timeout=timeout,
                headers={"Content-Type": "application/json"}
            )
            response.raise_for_status()
            return response.json()
        except requests.exceptions.RequestException as e:
            print(f"请求失败: {e}")
            raise

    def save_result(self, keyword: str, result: Dict[str, Any]) -> str:
        """
        保存结果到文件
        目录结构: results/平台/关键词/时间戳.json

        Args:
            keyword: 搜索关键词
            result: API返回的结果

        Returns:
            保存的文件路径
        """
        # 创建目录结构: results/平台/关键词/
        result_dir = os.path.join(self.results_base_dir, self.PLATFORM, keyword)
        os.makedirs(result_dir, exist_ok=True)

        # 文件名使用时间戳
        timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
        filename = f"{timestamp}.json"
        filepath = os.path.join(result_dir, filename)

        # 保存结果
        with open(filepath, 'w', encoding='utf-8') as f:
            json.dump(result, f, ensure_ascii=False, indent=2)

        return filepath


def main():
    """示例使用"""
    # 解析命令行参数
    parser = argparse.ArgumentParser(description='B站搜索推荐词接口')
    parser.add_argument(
        '--results-dir',
        type=str,
        default='data/search_recommendations',
        help='结果输出目录 (默认: data/search_recommendations)'
    )
    parser.add_argument(
        '--keyword',
        type=str,
        default='游戏',
        help='搜索关键词 (默认: 游戏)'
    )
    args = parser.parse_args()

    # 创建API客户端实例
    client = BilibiliSearchRecommendations(results_dir=args.results_dir)

    # 获取推荐词并保存
    try:
        result = client.get_recommendations(args.keyword)
        filepath = client.save_result(args.keyword, result)
        print(f"Output: {filepath}")
    except Exception as e:
        print(f"Error: {e}", file=__import__('sys').stderr)


if __name__ == "__main__":
    main()