import { ApolloLink } from 'apollo-link';
import { HttpLink } from 'apollo-link-http';
import { API_URL } from '~/utils';

export default (ctx) => {
  const httpLink = new HttpLink({ uri: `${API_URL}/graphql` });

  // auth token

  // middleware
  const middlewareLink = new ApolloLink((operation, forward) => {
    const token = ctx.isServer ? ctx.req.session.token : window.__NUXT__.state.auth.token;
    if (token) {
      operation.setContext({
        headers: { Authorization: `JWT ${token}` },
      });
    }
    return forward(operation);
  });

  const link = middlewareLink.concat(httpLink);
  return {
    link,
  };
};