import { defineMiddleware } from 'astro:middleware';
import { SUPPORTED_LANGUAGES, DEFAULT_LANGUAGE, isSupportedLanguage } from './lib/i18n';

export const onRequest = defineMiddleware(async (context, next) => {
  const { pathname } = context.url;
  
  // Skip middleware for static assets
  if (pathname.startsWith('/_astro/') || pathname.startsWith('/assets/') || pathname.includes('.')) {
    return next();
  }
  
  const pathSegments = pathname.split('/').filter(Boolean);
  const firstSegment = pathSegments[0];
  
  // If the first segment is a supported language, continue
  if (isSupportedLanguage(firstSegment)) {
    return next();
  }
  
  // If no language prefix, it's Spanish (default) - continue
  if (pathname === '/' || !isSupportedLanguage(firstSegment)) {
    return next();
  }
  
  return next();
});