#!/bin/bash
# 设备刚重启过（up 4 分钟）—— 查开机后各服务有没有自己起来
set -u

echo "════════ 1. 开机多久了 ════════"
uptime | sed 's/^/  /'
echo "  开机于: $(who -b 2>/dev/null | awk '{print $3, $4}' || echo '?')"

echo
echo "════════ 2. 三个服务 ════════"
for svc in lanremote-relay lanremote-tunnel lanremote-nettune lanremote-watchdog.timer; do
    printf "  %-26s %s (%s)\n" "$svc" "$(systemctl is-active $svc 2>&1)" "$(systemctl is-enabled $svc 2>&1)"
done

echo
echo "════════ 3. 开机自启清单里有没有它们 ════════"
systemctl list-unit-files 2>/dev/null | grep -i lanremote | sed 's/^/  /'

echo
echo "════════ 4. 隧道连接数 ════════"
echo "  $(curl -s --max-time 5 http://127.0.0.1:20241/metrics 2>/dev/null | grep '^cloudflared_tunnel_ha_connections' | awk '{print $2}') 条"

echo
echo "════════ 5. 网络调优参数还在吗 ════════"
for k in tcp_keepalive_time tcp_keepalive_intvl tcp_mtu_probing tcp_slow_start_after_idle; do
    printf "  %-30s = %s\n" "$k" "$(sysctl -n net.ipv4.$k 2>/dev/null || echo '?')"
done
echo "  MSS 钳制规则: $(iptables -t mangle -S 2>/dev/null | grep -c 'TCPMSS' || echo 0) 条"

echo
echo "════════ 6. 本机中转 ════════"
echo "  HTTP $(curl -s -o /dev/null -w '%{http_code}' --max-time 8 http://127.0.0.1:8080/v1/health)"

echo
echo "════════ 7. 公网（浏览器实际走的）════════"
echo "  隧道地址: $(cat /root/lanremote-relay/public_url.txt 2>/dev/null || echo '（没有）')"
ok=0
for i in $(seq 1 10); do
    c=$(curl -s -o /dev/null -w '%{http_code}' --max-time 15 \
        -H 'User-Agent: LanRemote/1.4.0' https://relay.xxmxxs.top/v1/health)
    [ "$c" = "200" ] && ok=$((ok+1))
    printf "    %2d: %s\n" "$i" "$c"
    sleep 1
done
echo "  可用 $ok/10"

echo
echo "════════ 8. 新地址写进状态文件了吗 ════════"
cat /root/lanremote-relay/public_url.txt 2>/dev/null | sed 's/^/  /'
echo

echo "════════ 9. 当前 IP（换网络后）════════"
hostname -I | sed 's/^/  /'

echo
echo "════════ 10. watchdog 最近记录 ════════"
tail -8 /root/lanremote-relay/watchdog.log 2>/dev/null | sed 's/^/  /'