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//! 子命令定义。
use clap::{Parser, Subcommand};
use crate::dns::DnsRecordType;
use crate::i18n::Lang;
/// 本地网络检测工具集
#[derive(Parser, Debug)]
#[command(name = "netutils", version, about = "Local network diagnostic toolkit", long_about = None)]
pub struct Cli {
/// JSON 输出（便于脚本处理）
#[arg(long, global = true)]
pub json: bool,
/// 覆盖语言（zh/en），默认自动检测
#[arg(long, global = true, value_enum)]
pub lang: Option<Lang>,
#[command(subcommand)]
pub command: Option<Commands>,
}
#[derive(Subcommand, Debug)]
pub enum Commands {
/// 显示全部网络信息（默认）
#[command(alias = "a")]
All,
/// 仅显示网络接口列表
#[command(alias = "i")]
Iface,
/// 仅显示流量出口
#[command(alias = "e")]
Egress,
/// 仅显示路由表
#[command(alias = "r")]
Route,
/// 仅显示代理设置
#[command(alias = "p")]
Proxy,
/// Ping 主机（ICMP，无权限时回退 TCP）
#[command(alias = "pg")]
Ping {
/// 目标主机名或 IP
host: String,
/// 发送包数（默认 4）
#[arg(short, long, default_value_t = 4)]
count: u32,
},
/// DNS 查询
#[command(alias = "d")]
Dns {
/// 目标域名
domain: String,
/// 记录类型（默认 A）
#[arg(short, long, value_enum, default_value_t = DnsRecordType::A)]
r#type: DnsRecordType,
},
/// 路由追踪（TTL 递增）
#[command(alias = "t")]
Trace {
/// 目标主机名或 IP
host: String,
},
/// 端口扫描（并发 TCP connect）
#[command(alias = "s")]
Scan {
/// 目标主机名或 IP
host: String,
/// 端口列表，逗号分隔（如 80,443,8080），不指定则扫描常见端口
ports: Option<String>,
},
/// 连通性测试（TCP 端口 / HTTP URL）
#[command(alias = "c")]
Check {
/// 目标地址（host:port 或 http(s)://url）
target: String,
/// 测试次数（默认 4）
#[arg(short, long, default_value_t = 4)]
count: u32,
},
/// 列出当前网络连接（TCP/UDP）
#[command(visible_alias = "co", alias = "conn")]
Connections {
/// 按状态过滤（如 ESTABLISHED, LISTEN）
#[arg(short, long)]
state: Option<String>,
/// 按端口过滤
#[arg(short, long)]
port: Option<u16>,
/// 按进程名过滤
#[arg(long)]
process: Option<String>,
},
/// 一键诊断（组合检测，给出结论）
#[command(alias = "dx")]
Diag,
/// 全链路诊断：DNS → Ping → TCP → HTTPS → Traceroute，给出结论
#[command(alias = "dg")]
Diagnose {
/// 目标主机名或 IP
host: String,
},
}