#!/bin/bash
# 观察 3 分钟：看门狗能不能把隧道救回来。
set -u

URL=https://relay.xxmxxs.top
RELAY_DIR=/root/lanremote-relay

for i in 1 2 3 4 5 6; do
    ACTIVE=$(systemctl is-active lanremote-tunnel)
    HA=$(curl -s --max-time 4 http://127.0.0.1:20241/metrics 2>/dev/null \
         | grep '^cloudflared_tunnel_ha_connections' | awk '{print $2}')
    CODE=$(timeout 15 curl -4 -s -o /dev/null -w '%{http_code}' \
           -H 'User-Agent: LanRemote/1.4.0' "$URL/v1/health" 2>/dev/null)
    printf "  %3ds: 服务=%-8s ha=%-3s 公网=%s\n" \
        "$((i * 30))" "$ACTIVE" "${HA:-?}" "${CODE:-超时}"
    sleep 30
done

echo
echo "  看门狗最近动作："
tail -8 "$RELAY_DIR/watchdog.log" 2>/dev/null | sed 's/^/    /'
echo
echo -n "  看门狗状态: "
cat "$RELAY_DIR/watchdog.state" 2>/dev/null | tr '\n' ' '
echo
echo "  隧道注册/断开: $(grep -c 'Registered tunnel connection' $RELAY_DIR/tunnel.log 2>/dev/null || echo 0) / $(grep -c 'Connection terminated' $RELAY_DIR/tunnel.log 2>/dev/null || echo 0)"