#!/usr/bin/env python3
import asyncio
import aiohttp
import time
import json
from collections import Counter
import statistics
from typing import List, Dict, Any

def build_proxy_url(item: Dict[str, Any]) -> str:
    """
    将 JSON 中的代理条目（scheme/server/port/username/password）转换为
    aiohttp 可接受的 proxy URL，例如：
      http://user:pass@host:port
      http://host:port
    """
    scheme = item.get("scheme", "http")
    host = item.get("server") or item.get("host") or item.get("ip")
    port = item.get("port")
    user = item.get("username") or item.get("user")
    pwd = item.get("password") or item.get("pass")
    if not host or not port:
        return None
    if user:
        return f"{scheme}://{user}:{pwd}@{host}:{port}"
    else:
        return f"{scheme}://{host}:{port}"


def load_proxies_from_json(path: str, pool_name) -> List[str]:
    proxies: List[str] = []
    try:
        with open(path, "r", encoding="utf-8") as f:
            pools = json.load(f)
        arr = pools[pool_name]
        if not isinstance(arr, list):
            print(f"{path} does not contain a JSON array.")
            return []
        for entry in arr:
            if entry.get('enable', True):
                try:
                    p = build_proxy_url(entry)
                    if p:
                        proxies.append(p)
                except Exception:
                    continue
    except FileNotFoundError:
        print(f"Proxy file {path} not found. Continuing without proxies.")
    except Exception as e:
        print(f"Failed to load proxies from {path}: {e}")
    return proxies

def select_good_iplist(proxies):
    pass