// Proxy para evitar CORS
import { API_HOST } from '$lib/api.js';
const API_BASE = API_HOST + '/api/search';

export async function GET({ url }) {
  const q = url.searchParams.get('q') || '';
  const is_class = url.searchParams.get('is_class'); // null si no viene
  const mode = url.searchParams.get('mode') || '';
  const class_ = url.searchParams.get('class_') || '';
  const page = url.searchParams.get('page') || '1';
  const per_page = url.searchParams.get('per_page') || '';

  const apiUrl = new URL(API_BASE);
  apiUrl.searchParams.set('q', q);
  apiUrl.searchParams.set('page', page);

  // Solo enviar is_class si viene explícitamente
  if (is_class !== null) {
    apiUrl.searchParams.set('is_class', is_class);
  }
  if (per_page) apiUrl.searchParams.set('per_page', per_page);
  if (mode) apiUrl.searchParams.set('mode', mode);
  if (class_) apiUrl.searchParams.set('class_', class_);

  try {
    const response = await fetch(apiUrl.toString());

    if (!response.ok) {
      return new Response(JSON.stringify({ error: `API error: ${response.status}` }), {
        status: response.status,
        headers: { 'Content-Type': 'application/json' }
      });
    }

    const data = await response.json();

    return new Response(JSON.stringify(data), {
      headers: { 'Content-Type': 'application/json' }
    });
  } catch (err) {
    console.error('Proxy error:', err.message, 'URL:', apiUrl.toString());
    return new Response(JSON.stringify({ error: 'Failed to fetch from API', detail: err.message, url: apiUrl.toString() }), {
      status: 500,
      headers: { 'Content-Type': 'application/json' }
    });
  }
}