// Route handler:

import 'server-only';
import { cookies } from 'next/headers';
import { redirect } from 'next/navigation';

const authFetch = async (
  path: string,
  config?: {
    method?: string;
    body?: object;
  }
) => {
  const cookieStore = cookies();

  const accessToken = cookieStore.get('accessToken');
  const refreshToken = cookieStore.get('refreshToken');

  if (!accessToken && !refreshToken) {
    redirect('/');
  }

  const method = config?.method || 'GET';
  const body = config?.body ? JSON.stringify(config.body) : undefined;

  const headers = new Headers();
  headers.append('Authorization', `Bearer ${accessToken}`);

  if (['POST', 'PATCH', 'PUT'].includes(method)) {
    headers.append('Content-Type', `application/json`);
  }

  return await fetch(`${process.env.API_URL}${path}`, {
    method,
    body,
    headers: {
      Authorization: `Bearer ${accessToken}`,
      ...headers,
    },
  });
};

export async function GET() {
  return authFetch(`item-inventory/api/instances`); // this is the external API
}

// Server component helper:

export const preload = (type: string) => void getInventoryInstances(type);

export const getInventoryInstances = async (type: string) => {
  const res = await fetch(`api/inventory/instances`);

  if (!res.ok) {
    console.error('Failed to fetch data');
  }

  const { instances } = await res.json();

  return instances;
};

// Server component:
import { getInventoryInstances } from '@/utils/api/inventory/getInstances';

export default async function AppProvider({
  children,
}: React.PropsWithChildren) {
  const inventoryInstances = await getInventoryInstances('Track');
  return (
        <TracksProvider {...{ inventoryInstances }}>{children}</TracksProvider>
  );
}