"""www.proxy-list.download 公开 API（README: Free_Proxy_Website）。"""
from typing import List

from app.core.plugin_system import ProxyRaw
from app.plugins.base import BaseHTTPPlugin
from app.core.log import logger


class FpwProxyListDownloadPlugin(BaseHTTPPlugin):
    name = "fpw_proxy_list_download"
    display_name = "Proxy-List.download"
    description = "proxy-list.download 官方 API（http/https/socks4/socks5）"

    def __init__(self):
        super().__init__()
        self.max_concurrency = 4
        self.api_pairs = [
            ("http", "https://www.proxy-list.download/api/v1/get?type=http"),
            ("https", "https://www.proxy-list.download/api/v1/get?type=https"),
            ("socks4", "https://www.proxy-list.download/api/v1/get?type=socks4"),
            ("socks5", "https://www.proxy-list.download/api/v1/get?type=socks5"),
        ]
        self.fallback_pairs = [
            ("http", "https://api.proxyscrape.com/v2/?request=get&protocol=http&timeout=10000&country=all&ssl=all&anonymity=all"),
            ("https", "https://api.proxyscrape.com/v2/?request=get&protocol=https&timeout=10000&country=all&ssl=all&anonymity=all"),
            ("socks4", "https://api.proxyscrape.com/v2/?request=get&protocol=socks4&timeout=10000&country=all&ssl=all&anonymity=all"),
            ("socks5", "https://api.proxyscrape.com/v2/?request=get&protocol=socks5&timeout=10000&country=all&ssl=all&anonymity=all"),
        ]

    async def crawl(self) -> List[ProxyRaw]:
        results: List[ProxyRaw] = []
        urls = [u for _, u in self.api_pairs]
        htmls = await self.fetch_all(urls, timeout=25, retries=2)
        for (protocol, _), text in zip(self.api_pairs, htmls):
            if not text:
                continue
            batch = self.parse_text_proxies(text, protocol)
            if batch:
                results.extend(batch)
                logger.info(f"{self.display_name} {protocol}: {len(batch)} 条")
        if not results:
            logger.warning(f"{self.display_name} 主 API 无数据，尝试 ProxyScrape 备用")
            fb_urls = [u for _, u in self.fallback_pairs]
            fb_htmls = await self.fetch_all(fb_urls, timeout=25, retries=2)
            for (protocol, _), text in zip(self.fallback_pairs, fb_htmls):
                if not text:
                    continue
                batch = self.parse_text_proxies(text, protocol)
                if batch:
                    results.extend(batch)
                    logger.info(f"{self.display_name} fallback {protocol}: {len(batch)} 条")
        if results:
            logger.info(f"{self.display_name} 合计 {len(results)} 条")
        return results