import { basename } from 'path'

/**
 * Sanitize a filename: strip path components, replace special chars,
 * collapse underscores, lowercase.
 */
export function sanitizeFilename(name: string): string {
  return basename(name)
    .replace(/[^a-zA-Z0-9._-]/g, '_')
    .replace(/_{2,}/g, '_')
    .toLowerCase()
}