import { ApolloClient, InMemoryCache } from '@apollo/client'
import { SchemaLink } from '@apollo/client/link/schema'
import { mergeSchemas } from 'graphql-tools'
import { getSession } from 'next-auth/client'
import resolvers from './resolvers'
import typeDefs from './typeDefs'
import models from './models'

export default async function getSSRApolloClient (req) {
  const session = req && await getSession({ req })
  return new ApolloClient({
    ssrMode: true,
    link: new SchemaLink({
      schema: mergeSchemas({
        schemas: typeDefs,
        resolvers: resolvers
      }),
      context: {
        models,
        me: session ? session.user : null
      }
    }),
    cache: new InMemoryCache()
  })
}