#!/bin/bash
# Write Server 安装脚本
# 用于在 Linux 服务器上安装所有依赖

set -e

echo "==================================="
echo "  Write Server 安装脚本"
echo "==================================="

# 检测操作系统
if [ -f /etc/os-release ]; then
    . /etc/os-release
    OS=$ID
    VER=$VERSION_ID
else
    echo "无法检测操作系统类型"
    exit 1
fi

echo "检测到操作系统: $OS $VER"

# 更新系统包
echo ""
echo "1. 更新系统包..."
if [ "$OS" = "ubuntu" ] || [ "$OS" = "debian" ]; then
    sudo apt-get update
    sudo apt-get upgrade -y
elif [ "$OS" = "centos" ] || [ "$OS" = "rhel" ] || [ "$OS" = "fedora" ]; then
    sudo yum update -y
fi

# 安装基础依赖
echo ""
echo "2. 安装基础依赖..."
if [ "$OS" = "ubuntu" ] || [ "$OS" = "debian" ]; then
    sudo apt-get install -y curl wget git build-essential
elif [ "$OS" = "centos" ] || [ "$OS" = "rhel" ] || [ "$OS" = "fedora" ]; then
    sudo yum install -y curl wget git gcc-c++ make
fi

# 安装 Node.js 20
echo ""
echo "3. 安装 Node.js 20..."
if ! command -v node &> /dev/null; then
    curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash -
    if [ "$OS" = "ubuntu" ] || [ "$OS" = "debian" ]; then
        sudo apt-get install -y nodejs
    elif [ "$OS" = "centos" ] || [ "$OS" = "rhel" ] || [ "$OS" = "fedora" ]; then
        sudo yum install -y nodejs
    fi
else
    echo "Node.js 已安装: $(node --version)"
fi

# 验证 Node.js 安装
echo "Node.js 版本: $(node --version)"
echo "npm 版本: $(npm --version)"

# 安装 Hugo
echo ""
echo "4. 安装 Hugo..."
if ! command -v hugo &> /dev/null; then
    HUGO_VERSION="0.128.2"
    HUGO_URL="https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-amd64.tar.gz"

    wget -O /tmp/hugo.tar.gz "$HUGO_URL"
    tar -xzf /tmp/hugo.tar.gz -C /tmp
    sudo mv /tmp/hugo /usr/local/bin/
    rm /tmp/hugo.tar.gz
else
    echo "Hugo 已安装: $(hugo version)"
fi

# 验证 Hugo 安装
echo "Hugo 版本: $(hugo version | head -n 1)"

# 安装 PM2（进程管理器）
echo ""
echo "5. 安装 PM2..."
if ! command -v pm2 &> /dev/null; then
    sudo npm install -g pm2
else
    echo "PM2 已安装: $(pm2 --version)"
fi

# 创建必要的目录
echo ""
echo "6. 创建必要的目录..."
mkdir -p logs backups recycle

# 安装项目依赖
echo ""
echo "7. 安装项目依赖..."
npm install

# 构建项目
echo ""
echo "8. 构建项目..."
npm run build

# 创建日志目录
echo ""
echo "9. 配置日志..."
mkdir -p logs

echo ""
echo "==================================="
echo "  安装完成！"
echo "==================================="
echo ""
echo "下一步操作："
echo "1. 配置环境变量："
echo "   cp .env.example .env"
echo "   nano .env"
echo ""
echo "2. 启动服务："
echo "   ./scripts/start.sh"
echo ""
echo "3. 设置开机自启（可选）："
echo "   sudo ./scripts/setup-service.sh"
echo ""
echo "4. 配置 Nginx 反向代理（可选）："
echo "   参考 nginx/nginx.conf"
echo ""