"""领域模型 - 纯数据结构，不依赖任何框架"""
from dataclasses import dataclass, field
from datetime import datetime
from typing import List, Optional


@dataclass
class ProxyRaw:
    """爬虫爬取的原始代理数据"""
    ip: str
    port: int
    protocol: str = "http"

    def __post_init__(self):
        self.protocol = self.protocol.lower().strip()
        if self.protocol not in ("http", "https", "socks4", "socks5"):
            self.protocol = "http"
        if not isinstance(self.port, int) or not (1 <= self.port <= 65535):
            raise ValueError(f"port must be between 1 and 65535, got {self.port}")


@dataclass
class Proxy:
    """数据库中的代理实体"""
    ip: str
    port: int
    protocol: str
    score: int
    response_time_ms: Optional[float] = None
    last_check: Optional[datetime] = None
    created_at: Optional[datetime] = None


@dataclass
class PluginInfo:
    """插件元数据"""
    id: str
    name: str
    display_name: str
    description: str
    enabled: bool
    last_run: Optional[datetime] = None
    success_count: int = 0
    failure_count: int = 0


@dataclass
class CrawlResult:
    """插件爬取结果"""
    plugin_name: str
    proxies: List[ProxyRaw] = field(default_factory=list)
    success_count: int = 0
    failure_count: int = 0
    error: Optional[str] = None