middleware.ts

import { NextResponse } from 'next/server'
import type { NextRequest } from 'next/server'

export function middleware(request: NextRequest) {
  const response = NextResponse.next()

  // Security Headers
  response.headers.set('X-Frame-Options', 'DENY')
  response.headers.set('X-Content-Type-Options', 'nosniff')
  response.headers.set('Referrer-Policy', 'strict-origin-when-cross-origin')
  response.headers.set('Permissions-Policy', 'camera=(), microphone=(), geolocation=()')
  response.headers.set('Strict-Transport-Security', 'max-age=31536000; includeSubDomains')
  response.headers.set(
    'Content-Security-Policy',
    [
      "default-src 'self'",
      "img-src 'self' data: https: blob:",
      "script-src 'self' 'unsafe-eval' 'unsafe-inline'",
      "style-src 'self' 'unsafe-inline'",
      "font-src 'self' data:",
      "connect-src 'self' https://t.me https://instagram.com https://www.google-analytics.com",
      "frame-src 'none'",
      "frame-ancestors 'none'",
      "form-action 'self'",
    ].join('; ')
  )

  return response
}

export const config = {
  matcher: '/:path*',
}