import { useApolloClient, useMutation } from '@apollo/react-hooks'
import gql from 'graphql-tag'

const SINGLE_UPLOAD_MUTATION = gql`
  mutation singleUpload($file: Upload!) {
    singleUpload(file: $file) {
      id
    }
  }
`

export const UploadFile = () => {
  const [uploadFileMutation] = useMutation(SINGLE_UPLOAD_MUTATION)
  const apolloClient = useApolloClient()

  const onChange = ({
    target: {
      validity,
      files: [file],
    },
  }) =>
    validity.valid &&
    uploadFileMutation({ variables: { file } }).then(() => {
      apolloClient.resetStore()
    })

  return <input type="file" required onChange={onChange} />
}