#!/bin/bash
# 验证：僵尸设备清掉了 + 公网稳定
set -u

BASE=http://127.0.0.1:8080
PUB=https://relay.xxmxxs.top

echo "  服务状态: relay=$(systemctl is-active lanremote-relay)  tunnel=$(systemctl is-active lanremote-tunnel)"

curl -s --max-time 15 "$BASE/v1/health" -o /tmp/h.json
size=$(wc -c < /tmp/h.json)
count=$(python3 -c "import json; print(len(json.load(open('/tmp/h.json')).get('devices',[])))" 2>/dev/null || echo "?")
echo "  health: ${size} 字节，设备 $count 台"

echo
echo "  TCP keepalive:"
for k in tcp_keepalive_time tcp_keepalive_intvl tcp_keepalive_probes; do
    printf "    %-26s = %s\n" "$k" "$(sysctl -n net.ipv4.$k)"
done
echo "  隧道参数: $(grep -o 'ha-connections [0-9]*' /etc/systemd/system/lanremote-tunnel.service)"
echo "  隧道连接数: $(curl -s --max-time 5 http://127.0.0.1:20241/metrics 2>/dev/null | grep '^cloudflared_tunnel_ha_connections' | awk '{print $2}')"

echo
echo "  公网 15 次:"
ok=0
for i in $(seq 1 15); do
    c=$(curl -s -o /dev/null -w '%{http_code}' --max-time 20 -H 'User-Agent: LanRemote/1.4.0' "$PUB/v1/health")
    [ "$c" = "200" ] && ok=$((ok+1))
    printf "    %2d: %s\n" "$i" "$c"
    sleep 1
done
echo "  可用 $ok/15"

echo
echo "  官网公网:"
curl -s -o /dev/null -w '    HTTP %{http_code}  %{size_download} 字节  %{time_total}s\n' \
    --max-time 25 -H 'User-Agent: LanRemote/1.4.0' "$PUB/"