import { fetchWithAuth } from '../fetchWithAuth';
import { extractApiError } from './apiError';

const API_BASE_URL = import.meta.env.VITE_EFC_API_URL;

export const fetchPedimentoEdocuments = async (pedimentoId, page = 1, pageSize = 10, filters = {}) => {
  const params = new URLSearchParams({
    pedimento: pedimentoId,
    page: page.toString(),
    page_size: pageSize.toString(),
  });

  if (filters.numero_edocument) params.append('numero_edocument__icontains', filters.numero_edocument);
  if (filters.clave) params.append('clave__icontains', filters.clave);
  if (filters.descripcion) params.append('descripcion__icontains', filters.descripcion);
  // Estado de 3 valores (pendiente | descargado | error) — T2026-05-027
  if (filters.edocument_estado) params.append('edocument_estado', filters.edocument_estado);
  if (filters.acuse_estado) params.append('acuse_estado', filters.acuse_estado);
  // Filtros booleanos legados (compatibilidad)
  if (filters.edocument_descargado !== undefined && filters.edocument_descargado !== '') params.append('edocument_descargado', filters.edocument_descargado);
  if (filters.acuse_descargado !== undefined && filters.acuse_descargado !== '') params.append('acuse_descargado', filters.acuse_descargado);
  if (filters.date_from || filters.created_at__gte) params.append('created_at__gte', filters.date_from || filters.created_at__gte);
  if (filters.date_to || filters.created_at__lte) params.append('created_at__lte', filters.date_to || filters.created_at__lte);

  const response = await fetchWithAuth(`${API_BASE_URL}/customs/edocuments/?${params}`);
  if (!response.ok) throw new Error(await extractApiError(response));

  const data = await response.json();
  return { results: data.results, count: data.count, next: data.next, previous: data.previous };
};

export const downloadEdocument = async (edocId) => {
  const response = await fetchWithAuth(`${API_BASE_URL}/customs/edocuments/${edocId}/download/`);
  if (!response.ok) throw new Error(await extractApiError(response));

  const blob = await response.blob();
  const url = window.URL.createObjectURL(blob);
  const a = document.createElement('a');
  a.style.display = 'none';
  a.href = url;
  a.download = `EDOC_${edocId}.pdf`;
  document.body.appendChild(a);
  a.click();
  window.URL.revokeObjectURL(url);
  document.body.removeChild(a);
};

export const downloadAcuseEdocument = async (edocId) => {
  const response = await fetchWithAuth(`${API_BASE_URL}/customs/edocuments/${edocId}/download-acuse/`);
  if (!response.ok) throw new Error(await extractApiError(response));

  const blob = await response.blob();
  const url = window.URL.createObjectURL(blob);
  const a = document.createElement('a');
  a.style.display = 'none';
  a.href = url;
  a.download = `ACUSE_EDOC_${edocId}.pdf`;
  document.body.appendChild(a);
  a.click();
  window.URL.revokeObjectURL(url);
  document.body.removeChild(a);
};

export const resetAcuseEdocument = async (edocId) => {
  const response = await fetchWithAuth(
    `${API_BASE_URL}/customs/edocuments/${edocId}/reset-acuse/`,
    { method: 'POST' }
  );
  if (!response.ok) throw new Error(await extractApiError(response));
  return response.json();
};