server {
    listen 80;
    server_name _;

    # Access log
    access_log /var/log/nginx/blender-tool.access.log;
    error_log  /var/log/nginx/blender-tool.error.log;

    # Proxy to Blender Tool backend (port 21171)
    location / {
        proxy_pass         http://127.0.0.1:21171;
        proxy_http_version 1.1;

        # WebSocket support (Server-Sent Events / Upgrade)
        proxy_set_header   Upgrade           $http_upgrade;
        proxy_set_header   Connection        "upgrade";

        # Forward real client IP and host
        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;

        # Timeouts
        proxy_read_timeout  300s;
        proxy_send_timeout  300s;
        proxy_connect_timeout 10s;

        # Buffer sizes
        proxy_buffering    off;
        proxy_buffer_size  4k;
    }
}
