# VidRip Production Deployment Guide

This guide covers deploying VidRip in a production environment.

## Quick Start (Simple Deployment)

The simplest way to run VidRip in production:

```bash
# Make scripts executable (if not already)
chmod +x start-production.sh stop-production.sh

# Start the service
./start-production.sh

# Stop the service
./stop-production.sh
```

The `start-production.sh` script will:
- Check system requirements (Node.js 18+, yt-dlp)
- Install dependencies
- Build backend and frontend
- Start the backend server in the background
- Create log files in `logs/` directory

## Production Deployment (Recommended)

For a robust production setup, use systemd for process management:

### 1. Install System Requirements

```bash
# Install Node.js 18+ (if not installed)
curl -fsSL https://deb.nodesource.com/setup_18.x | sudo -E bash -
sudo apt-get install -y nodejs

# Install yt-dlp
sudo apt-get install -y python3-pip
pip3 install yt-dlp
# OR
sudo wget https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp -O /usr/local/bin/yt-dlp
sudo chmod a+rx /usr/local/bin/yt-dlp
```

### 2. Deploy Application Files

```bash
# Create application directory
sudo mkdir -p /var/www/vidrip
sudo chown $USER:$USER /var/www/vidrip

# Copy files to production location
cp -r /path/to/vidrip/* /var/www/vidrip/

# Create required directories
sudo mkdir -p /var/log/vidrip
sudo chown www-data:www-data /var/log/vidrip
```

### 3. Build the Application

```bash
cd /var/www/vidrip

# Install dependencies
npm run install:all

# Build backend
cd backend
npm run build

# Build frontend
cd ../frontend
npm run build
```

### 4. Configure Backend (Optional)

Create `/var/www/vidrip/backend/.env`:

```env
NODE_ENV=production
PORT=3001
```

### 5. Setup Systemd Service

```bash
# Copy service file
sudo cp /var/www/vidrip/vidrip.service /etc/systemd/system/

# Edit the service file to match your paths and user
sudo nano /etc/systemd/system/vidrip.service

# Reload systemd
sudo systemctl daemon-reload

# Enable service to start on boot
sudo systemctl enable vidrip

# Start service
sudo systemctl start vidrip

# Check status
sudo systemctl status vidrip
```

### 6. Setup Nginx Reverse Proxy

Create `/etc/nginx/sites-available/vidrip`:

```nginx
server {
    listen 80;
    server_name your-domain.com;

    # Serve frontend static files
    location / {
        root /var/www/vidrip/frontend/dist;
        try_files $uri $uri/ /index.html;
    }

    # Proxy API requests to backend
    location /api/ {
        proxy_pass http://localhost:3001;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    # Serve downloaded video files
    location /downloads/ {
        alias /var/www/vidrip/backend/downloads/;
        add_header Content-Type video/mp4;
    }

    # Increase upload size if needed
    client_max_body_size 100M;
}
```

Enable the site:

```bash
sudo ln -s /etc/nginx/sites-available/vidrip /etc/nginx/sites-enabled/
sudo nginx -t
sudo systemctl reload nginx
```

### 7. Setup SSL with Let's Encrypt (Recommended)

```bash
sudo apt-get install certbot python3-certbot-nginx
sudo certbot --nginx -d your-domain.com
```

## Systemd Service Management

```bash
# Start service
sudo systemctl start vidrip

# Stop service
sudo systemctl stop vidrip

# Restart service
sudo systemctl restart vidrip

# View status
sudo systemctl status vidrip

# View logs
sudo journalctl -u vidrip -f

# View application logs
tail -f /var/log/vidrip/vidrip.log
tail -f /var/log/vidrip/vidrip-error.log
```

## PM2 Alternative (Node.js Process Manager)

If you prefer PM2 over systemd:

```bash
# Install PM2 globally
sudo npm install -g pm2

# Start application
cd /var/www/vidrip/backend
pm2 start dist/server.js --name vidrip

# Save PM2 configuration
pm2 save

# Setup PM2 to start on boot
pm2 startup
# Follow the instructions shown

# View logs
pm2 logs vidrip

# Monitor
pm2 monit

# Restart
pm2 restart vidrip
```

## Environment Variables

Configure in `/var/www/vidrip/backend/.env`:

```env
NODE_ENV=production
PORT=3001
```

## Monitoring and Maintenance

### Check Service Health

```bash
# Check if backend is running
curl http://localhost:3001/api/config

# Check disk space (downloads can fill up)
df -h /var/www/vidrip/backend/downloads
```

### Log Rotation

Create `/etc/logrotate.d/vidrip`:

```
/var/log/vidrip/*.log {
    daily
    rotate 14
    compress
    delaycompress
    notifempty
    create 0640 www-data www-data
    sharedscripts
    postrotate
        systemctl reload vidrip > /dev/null 2>&1 || true
    endscript
}
```

### Backup Strategy

```bash
# Backup database
cp /var/www/vidrip/backend/data.db /backups/vidrip-$(date +%Y%m%d).db

# Backup downloads (optional, can be large)
rsync -av /var/www/vidrip/backend/downloads/ /backups/downloads/
```

## Firewall Configuration

```bash
# Allow HTTP/HTTPS
sudo ufw allow 80/tcp
sudo ufw allow 443/tcp

# Backend should NOT be exposed directly
# Only accessible via nginx proxy
```

## Troubleshooting

### Service won't start

```bash
# Check logs
sudo journalctl -u vidrip -n 50

# Check if port is already in use
sudo netstat -tlnp | grep 3001

# Check file permissions
ls -la /var/www/vidrip/backend/dist/server.js
```

### Database locked errors

```bash
# Check database permissions
ls -la /var/www/vidrip/backend/data.db

# Ensure only one process is accessing database
ps aux | grep vidrip
```

### yt-dlp issues

```bash
# Update yt-dlp
pip3 install --upgrade yt-dlp

# Check if it's in PATH
which yt-dlp

# Test manually
yt-dlp --version
```

## Security Checklist

- [ ] Run backend as non-root user (www-data)
- [ ] Enable firewall (ufw)
- [ ] Setup SSL/TLS certificates
- [ ] Restrict database file permissions
- [ ] Configure nginx security headers
- [ ] Enable log rotation
- [ ] Regular yt-dlp updates
- [ ] Monitor disk space for downloads
- [ ] Setup fail2ban (optional)
- [ ] Regular security updates

## Performance Tuning

### Download Directory Management

Monitor download directory size:

```bash
# Check total size
du -sh /var/www/vidrip/backend/downloads

# Find large files
du -h /var/www/vidrip/backend/downloads/* | sort -rh | head -20
```

### Database Optimization

```bash
# Vacuum database periodically
sqlite3 /var/www/vidrip/backend/data.db "VACUUM;"
```

## Updating the Application

```bash
# Pull latest code
cd /var/www/vidrip
git pull

# Install dependencies
npm run install:all

# Rebuild backend
cd backend
npm run build

# Rebuild frontend
cd ../frontend
npm run build

# Restart service
sudo systemctl restart vidrip
```