# -*- coding: utf-8 -*-
r'''看一眼中转服务器的完整状态。

为什么写成文件：这一轮我用 `python -c @"..."@` 传长命令失败了好几次 ——
PowerShell 的双引号 heredoc 会做变量插值、还会把 `$(...)` 当子表达式
在本机执行（systemctl / iptables 跑到 Windows 上了）。凡是超过两行
的远端命令，一律写成文件跑。

用法：
    python _build/check_device.py
'''
from __future__ import annotations

import sys
from pathlib import Path

ROOT = Path(__file__).resolve().parent.parent
sys.path.insert(0, str(ROOT / "_build"))
from devssh import run      # noqa: E402

REMOTE = r'''
RELAY=/root/lanremote-relay
echo "════ 服务 ════"
for s in lanremote-relay lanremote-tunnel lanremote-tunnel-h2 lanremote-nettune; do
    printf '  %-24s %s\n' "$s" "$(systemctl is-active $s 2>&1)"
done
printf '  %-24s %s\n' "monitor.timer" "$(systemctl is-active lanremote-monitor.timer 2>&1)"
printf '  %-24s %s\n' "watchdog.timer" "$(systemctl is-active lanremote-watchdog.timer 2>&1)"

echo
echo "════ 网络 ════"
printf '  %-24s %s\n' "wlan0 MTU" "$(cat /sys/class/net/wlan0/mtu 2>/dev/null)"
printf '  %-24s %s\n' "MSS 规则" "$(iptables -t mangle -L -n 2>/dev/null | grep -ci mss) 条"
printf '  %-24s %s\n' "tcp_mtu_probing" "$(cat /proc/sys/net/ipv4/tcp_mtu_probing 2>/dev/null)"
printf '  %-24s %s\n' "默认路由" "$(ip route show default 2>/dev/null | head -1)"

echo
echo "════ 内存 / 运行时长 ════"
printf '  %-24s %s\n' "运行时长" "$(uptime -p 2>/dev/null)"
free -m 2>/dev/null | sed -n '2p' | awk '{printf "  %-24s %s/%s MB\n", "内存 used/total", $3, $2}'

echo
echo "════ 隧道连接数 ════"
for p in 20241 20242; do
    n=$(curl -s --max-time 5 "http://127.0.0.1:$p/metrics" 2>/dev/null \
        | grep '^cloudflared_tunnel_ha_connections' | awk '{print $2}' | head -1)
    printf '  %-24s %s\n' "指标端口 $p" "${n:-拿不到}"
done

echo
echo "════ 公网自测 ════"
printf '  %-24s %s\n' "公网 /v1/health" "$(curl -s -o /dev/null -w '%{http_code} (%{time_total}s)' --max-time 15 https://relay.xxmxxs.top/v1/health 2>/dev/null)"
printf '  %-24s %s\n' "本机 /v1/health" "$(curl -s -o /dev/null -w '%{http_code}' --max-time 6 http://127.0.0.1:8080/v1/health 2>/dev/null)"
printf '  %-24s %s\n' "公网首页" "$(curl -s -o /dev/null -w '%{http_code}' --max-time 15 https://relay.xxmxxs.top/ 2>/dev/null)"
printf '  %-24s %s\n' "后台抢救报告路由" "$(curl -s -o /dev/null -w '%{http_code}' --max-time 6 http://127.0.0.1:8080/rescue/none.txt 2>/dev/null)"

echo
echo "════ 监测单元状态 ════"
cat $RELAY/monitor_state.txt 2>/dev/null | sed 's/^/  /' || echo "  （还没有状态文件）"
echo "  ── monitor.log 尾部 ──"
tail -5 $RELAY/monitor.log 2>/dev/null | sed 's/^/  /' || echo "  （还没有日志）"

echo
echo "════ 抢救报告 ════"
n=$(ls $RELAY/rescue_reports 2>/dev/null | wc -l)
echo "  共 $n 份"
ls -la $RELAY/rescue_reports/ 2>/dev/null | tail -n +4 | awk '{printf "  %s  %s\n", $6" "$7" "$8, $9}'

echo
echo "════ 知识库 ════"
if [ -f $RELAY/rescue_knowledge.md ]; then
    echo "  行数：$(wc -l < $RELAY/rescue_knowledge.md)"
    tail -6 $RELAY/rescue_knowledge.md | sed 's/^/  /'
else
    echo "  （没有）"
fi

echo
echo "════ 定时器下次触发 ════"
systemctl list-timers lanremote-monitor.timer lanremote-watchdog.timer --no-pager 2>/dev/null | head -4 | sed 's/^/  /'

echo
echo "════ 后台页有没有「抢救报告」分区 ════"
printf '  匹配次数: %s\n' "$(curl -s --max-time 8 http://127.0.0.1:8080/zhongzhuanzhan 2>/dev/null | grep -c '抢救报告')"
'''


def main() -> int:
    out = run(REMOTE, timeout=300)
    text = out[1] if isinstance(out, tuple) else str(out)
    print(text)
    return 0


if __name__ == "__main__":
    sys.exit(main())