#!/usr/bin/env bash
# 检查 Nginx 反代配置与本地 API（5599）是否正常
# 在服务器上执行: ./check-nginx-and-api.sh [Nginx站点配置路径]
# 例: ./check-nginx-and-api.sh /www/server/panel/vhost/nginx/view.airtep.com.conf

PORT="${PORT:-5599}"
NGINX_CONF="${1:-}"

echo "========== 1. 检查 API 是否监听并响应 =========="
if command -v ss >/dev/null 2>&1; then
  if ss -tlnp 2>/dev/null | grep -q ":$PORT "; then
    echo "端口 ${PORT} 已在监听。"
  else
    echo "端口 ${PORT} 未在监听，请先执行: ./start-api.sh 或 ./run.sh"
  fi
fi

echo ""
echo "---------- curl http://127.0.0.1:${PORT}/config ----------"
if command -v curl >/dev/null 2>&1; then
  code=$(curl -s -o /tmp/check-api-config.txt -w "%{http_code}" "http://127.0.0.1:${PORT}/config" 2>/dev/null)
  echo "HTTP 状态码: $code"
  if [ "$code" = "200" ]; then
    echo "响应内容: $(cat /tmp/check-api-config.txt 2>/dev/null | head -c 200)"
    echo ""
    echo "[OK] 本机 API 正常。"
  else
    echo "[失败] 本机 API 未返回 200，请启动后端: ./start-api.sh"
  fi
  rm -f /tmp/check-api-config.txt
else
  echo "未安装 curl，跳过。"
fi

echo ""
echo "========== 2. 检查 Nginx 反代配置 =========="
if [ -z "$NGINX_CONF" ]; then
  echo "未传入 Nginx 配置路径。用法: $0 /www/server/panel/vhost/nginx/view.airtep.com.conf"
  echo "请确认站点配置中包含："
  echo "  location /api {"
  echo "      proxy_pass http://127.0.0.1:5599/;   # 末尾必须有 /，且建议用 127.0.0.1 不用 localhost"
  echo "      ..."
  echo "  }"
  exit 0
fi

if [ ! -f "$NGINX_CONF" ]; then
  echo "文件不存在: $NGINX_CONF"
  exit 1
fi

echo "配置文件: $NGINX_CONF"
echo ""
if grep -q "location /api" "$NGINX_CONF"; then
  echo "--- location /api 片段 ---"
  sed -n '/location \/api/,/^[[:space:]]*}/p' "$NGINX_CONF" | head -15
  if grep -A1 "location /api" "$NGINX_CONF" | grep -q "proxy_pass http://127.0.0.1:5599/"; then
    echo ""
    echo "[OK] proxy_pass 为 http://127.0.0.1:5599/（正确）。"
  elif grep -A1 "location /api" "$NGINX_CONF" | grep -q "proxy_pass.*5599"; then
    echo ""
    echo "[注意] 请将 proxy_pass 改为: http://127.0.0.1:5599/  （末尾加 /，并用 127.0.0.1）"
  else
    echo ""
    echo "[注意] 未找到 proxy_pass 到 5599，请检查配置。"
  fi
else
  echo "[失败] 未找到 location /api，请添加反代到 5599。"
fi

echo ""
echo "========== 3. 测试经 Nginx 访问 /api/config（本机 HTTP 80）==========="
if command -v curl >/dev/null 2>&1; then
  code_80=$(curl -s -o /dev/null -w "%{http_code}" "http://127.0.0.1/api/config" -H "Host: view.airtep.com" 2>/dev/null)
  echo "curl http://127.0.0.1/api/config (Host: view.airtep.com) => HTTP $code_80"
  [ "$code_80" = "200" ] && echo "[OK] 80 反代正常。" || echo "[失败] 80 返回 $code_80"
fi

echo ""
echo "========== 4. 测试 HTTPS https://view.airtep.com/api/config ==========="
if command -v curl >/dev/null 2>&1; then
  code_443=$(curl -sk -o /dev/null -w "%{http_code}" "https://view.airtep.com/api/config" 2>/dev/null)
  echo "curl -sk https://view.airtep.com/api/config => HTTP $code_443"
  if [ "$code_443" = "200" ]; then
    echo "[OK] HTTPS 反代正常。"
  else
    echo "[失败] HTTPS 返回 $code_443。若 80 正常而 443 为 404，说明 443 的 server 块内缺少 location /api 或顺序有误。"
  fi
fi

echo ""
echo "========== 5. Nginx 中 location 顺序（前 20 个）==========="
if [ -n "$NGINX_CONF" ] && [ -f "$NGINX_CONF" ]; then
  grep -n "location \|server {" "$NGINX_CONF" | head -25
fi