#!/bin/bash
# 检查隧道现在通不通（从设备自己这边看）。
set -u

URL=$(cat /root/lanremote-relay/public_url.txt 2>/dev/null || echo "")
echo "  隧道地址: ${URL:-（没有）}"
echo

echo "  1. tunnel 服务: $(systemctl is-active lanremote-tunnel)"
echo "  2. 已注册的连接数: $(grep -c 'Registered tunnel connection' /root/lanremote-relay/tunnel.log 2>/dev/null || echo 0)"
echo

echo "  3. 从设备访问自己的公网地址："
if [ -n "$URL" ]; then
    for i in 1 2 3 4 5; do
        C=$(timeout 15 curl -s -o /dev/null -w '%{http_code}' "$URL/v1/health" 2>/dev/null)
        printf "     第 %d 次: HTTP %s\n" "$i" "${C:-超时}"
        [ "$C" = "200" ] && break
        sleep 5
    done
else
    echo "     没有地址"
fi

echo
echo "  4. 隧道日志尾部："
tail -6 /root/lanremote-relay/tunnel.log 2>/dev/null | sed 's/^/     /'

echo
echo "  5. 有没有再报 context deadline exceeded："
grep -c 'context deadline exceeded' /root/lanremote-relay/tunnel.log 2>/dev/null || echo 0