#!/bin/bash
# 502/530 但隧道连着 —— 查回源配置（这是我唯一还没验证过的一环）
set -u

BASE=http://127.0.0.1:8080

echo "════════ 1. 隧道 ingress 配置全文 ════════"
cat /root/.cloudflared/config.yml 2>/dev/null | sed 's/^/  /'

echo
echo "════════ 2. relay 到底监听哪个地址 ════════"
ss -lntp 2>/dev/null | grep 8080 | sed 's/^/  /'
echo "  ---"
printf "  127.0.0.1:8080  -> HTTP %s\n" "$(curl -s -o /dev/null -w '%{http_code}' --max-time 5 http://127.0.0.1:8080/v1/health)"
printf "  localhost:8080  -> HTTP %s\n" "$(curl -s -o /dev/null -w '%{http_code}' --max-time 5 http://localhost:8080/v1/health)"
printf "  192.168.10.105:8080 -> HTTP %s\n" "$(curl -s -o /dev/null -w '%{http_code}' --max-time 5 http://192.168.10.105:8080/v1/health)"

echo
echo "════════ 3. cloudflared 能看到 relay 吗（同一台机器）════════"
echo "  cloudflared 进程:"
pgrep -af 'cloudflared tunnel' | head -2 | sed 's/^/    /'

echo
echo "════════ 4. 隧道 metrics 全量 ════════"
curl -s --max-time 5 http://127.0.0.1:20241/metrics 2>/dev/null \
    | grep -E '^cloudflared_tunnel' | sed 's/^/  /'

echo
echo "════════ 5. 最近的注册/掉线（看 4 条是不是刚连上的）════════"
tail -300 /root/lanremote-relay/tunnel.log 2>/dev/null \
    | grep -E 'Registered|Lost|Retrying|i/o timeout|error' \
    | tail -20 | sed 's/^/  /'

echo
echo "════════ 6. 公网连打 15 次（看是持续挂还是间歇）════════"
ok=0
for i in $(seq 1 15); do
    c=$(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/15"

echo
echo "════════ 7. 每次请求是不是落到不同机房 ════════"
for i in 1 2 3 4 5 6; do
    ray=$(curl -sI --max-time 12 -H 'User-Agent: LanRemote/1.4.0' \
          https://relay.xxmxxs.top/v1/health 2>/dev/null \
          | grep -i '^cf-ray' | tr -d '\r' | awk '{print $2}')
    code=$(curl -s -o /dev/null -w '%{http_code}' --max-time 12 \
           -H 'User-Agent: LanRemote/1.4.0' https://relay.xxmxxs.top/v1/health)
    printf "    HTTP %s   cf-ray %s\n" "$code" "$ray"
done

echo
echo "════════ 8. DNS 解析到哪 ════════"
getent ahostsv4 relay.xxmxxs.top 2>/dev/null | awk '{print $1}' | sort -u | sed 's/^/  v4: /'
getent ahostsv6 relay.xxmxxs.top 2>/dev/null | awk '{print $1}' | sort -u | head -3 | sed 's/^/  v6: /'