#!/bin/bash
# 切到 HTTP/2 之后的稳定性验证。
set -u

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

: > "$RELAY_DIR/tunnel.log"
systemctl restart lanremote-tunnel
echo "  已重启，等 35 秒建连…"
sleep 35

echo
echo "===== 连续探 3 分钟（每 3 秒一次）====="
ok=0; bad=0
for i in $(seq 1 60); do
    code=$(timeout 12 curl -4 -s -o /dev/null -w '%{http_code}' \
           -H 'User-Agent: LanRemote/1.4.0' "$URL/v1/health" 2>/dev/null)
    code=${code:-000}
    if [ "$code" = "200" ]; then
        ok=$((ok + 1))
    else
        bad=$((bad + 1))
        printf "  [%2ds] 不通 %s\n" "$((i * 3))" "$code"
    fi
    sleep 3
done

conns=$(grep -c 'Registered tunnel connection' "$RELAY_DIR/tunnel.log" 2>/dev/null || echo 0)
drops=$(grep -c 'Connection terminated' "$RELAY_DIR/tunnel.log" 2>/dev/null || echo 0)
dials=$(grep -c 'Failed to dial' "$RELAY_DIR/tunnel.log" 2>/dev/null || echo 0)

echo
echo "===== 结果 ====="
echo "  可用 $ok / $((ok + bad)) = $((ok * 100 / (ok + bad)))%"
echo "  注册 $conns 次 · 断开 $drops 次 · 拨号失败 $dials 次"
echo
echo "  对比（之前实测，各 90 秒）："
echo "    QUIC   可用 48%，断开 16 次，拨号失败 16 次"
echo "    HTTP2  可用 80%，断开  2 次，拨号失败  0 次"
echo
echo "  当前协议：$(grep -o 'protocol=[a-z0-9]*' "$RELAY_DIR/tunnel.log" | tail -1)"
echo "  连接数: $(curl -s --max-time 5 http://127.0.0.1:20241/metrics | grep '^cloudflared_tunnel_ha_connections' | awk '{print $2}')"
echo
echo "  看门狗最近："
tail -5 "$RELAY_DIR/watchdog.log" 2>/dev/null | sed 's/^/    /'