cat > librespeed_install.sh << 'EOF'
#!/usr/bin/env bash
set -e

APP_NAME="librespeed"
DEFAULT_PORT=8000
WORKDIR="/root/librespeed"

echo "======================================="
echo " LibreSpeed 内网测速 Docker 一键部署"
echo "======================================="

# root 检查
if [ "$(id -u)" -ne 0 ]; then
  echo "❌ 请使用 root 运行"
  exit 1
fi

# 端口选择
read -p "请输入访问端口（默认 ${DEFAULT_PORT}，直接回车使用默认）: " PORT
PORT=${PORT:-$DEFAULT_PORT}

# 端口简单校验
if ! [[ "$PORT" =~ ^[0-9]+$ ]] || [ "$PORT" -lt 1 ] || [ "$PORT" -gt 65535 ]; then
  echo "❌ 端口不合法"
  exit 1
fi

echo "▶ 使用端口: $PORT"

# Docker 检查
if ! command -v docker >/dev/null 2>&1; then
  echo "❌ 未检测到 Docker，请先安装 Docker"
  exit 1
fi

# docker compose 检查
if ! docker compose version >/dev/null 2>&1; then
  echo "❌ 未检测到 docker compose 插件"
  exit 1
fi

# 创建目录
mkdir -p "$WORKDIR"
cd "$WORKDIR"

# 生成 docker-compose.yml
cat > docker-compose.yml <<YAML
version: '3'
services:
  librespeed:
    image: librespeed/speedtest:latest
    container_name: librespeed
    restart: always
    ports:
      - "${PORT}:80"
YAML

# 启动
echo "▶ 启动 LibreSpeed 容器..."
docker compose up -d

# 验证
sleep 1
if docker ps | grep -q librespeed; then
  echo "✅ LibreSpeed 启动成功"
  echo "🌐 访问地址: http://$(hostname -I | awk '{print $1}'):${PORT}"
else
  echo "❌ LibreSpeed 启动失败"
  docker compose logs
fi
EOF