# LetsBe Hub - Nginx Configuration
# Place this in /etc/nginx/sites-available/hub.conf
# Then: ln -s /etc/nginx/sites-available/hub.conf /etc/nginx/sites-enabled/
# And: nginx -t && systemctl reload nginx

# Redirect HTTP to HTTPS
server {
    listen 80;
    listen [::]:80;
    server_name hub.yourdomain.com;

    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }

    location / {
        return 301 https://$host$request_uri;
    }
}

# HTTPS server
server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name hub.yourdomain.com;

    # SSL certificates (Let's Encrypt)
    ssl_certificate /etc/letsencrypt/live/hub.yourdomain.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/hub.yourdomain.com/privkey.pem;

    # SSL settings
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384;
    ssl_prefer_server_ciphers off;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 1d;

    # Security headers
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;

    # Logging
    access_log /var/log/nginx/hub.access.log;
    error_log /var/log/nginx/hub.error.log;

    # Proxy to Hub container
    location / {
        proxy_pass http://127.0.0.1:3000;
        proxy_http_version 1.1;

        # Headers
        proxy_set_header Host $host;
        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;
        proxy_set_header X-Forwarded-Host $host;

        # WebSocket/SSE support (for log streaming)
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        # Timeouts (longer for SSE streams)
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 300s;  # 5 min for SSE log streaming

        # Buffering (disable for SSE)
        proxy_buffering off;
        proxy_cache off;

        # Max body size (for file uploads if needed)
        client_max_body_size 50M;
    }
}