#!/bin/bash
set -e

echo "=== Guidly VPS Setup ==="
echo "Run this script once on a fresh Ubuntu 22/24 server"

# 1. Update system
echo ">>> Updating system..."
apt update && apt upgrade -y

# 2. Install Node.js 22 (LTS)
echo ">>> Installing Node.js 22..."
curl -fsSL https://deb.nodesource.com/setup_22.x | bash -
apt install -y nodejs

# 3. Install nginx
echo ">>> Installing nginx..."
apt install -y nginx

# 4. Install certbot for Let's Encrypt SSL
echo ">>> Installing certbot..."
apt install -y certbot python3-certbot-nginx

# 5. Install PM2 globally
echo ">>> Installing PM2..."
npm install -g pm2

# 6. Create app directory
echo ">>> Creating app directory..."
mkdir -p /root/guidly

# 7. Configure firewall (if ufw is active)
if command -v ufw &> /dev/null; then
  echo ">>> Configuring firewall..."
  ufw allow 'Nginx Full'
  ufw allow OpenSSH
fi

echo ""
echo "=== Setup complete ==="
echo ""
echo "Next steps:"
echo "  1. Point DNS:  gidli.ru → $(curl -s ifconfig.me)"
echo "  2. Copy nginx config:  cp /root/guidly/deploy/nginx-guidly.conf /etc/nginx/sites-available/gidli.ru"
echo "  3. Enable site:  ln -s /etc/nginx/sites-available/gidli.ru /etc/nginx/sites-enabled/"
echo "  4. Remove default:  rm -f /etc/nginx/sites-enabled/default"
echo "  5. Get SSL cert:  certbot --nginx -d gidli.ru"
echo "  6. Test nginx:  nginx -t && systemctl reload nginx"
echo "  7. Deploy app:  run deploy.sh from your local machine"