// @flow
import CircularProgress from '@material-ui/core/CircularProgress'
import gql from 'graphql-tag'
import React from 'react'
import { Query } from 'react-apollo'
import BugRow from './BugRow'
import List from './List'

const QUERY = gql`
  query($first: Int = 10, $last: Int, $after: String, $before: String) {
    defaultRepository {
      bugs: allBugs(first: $first, last: $last, after: $after, before: $before) {
        totalCount
        edges {
          cursor
          node {
            ...BugRow
          }
        }
        pageInfo{
          hasNextPage
          hasPreviousPage
          startCursor
          endCursor
        }
      }
    }
  }


  ${BugRow.fragment}
`

const ListQuery = () => (
  <Query query={QUERY}>
    {({loading, error, data, fetchMore}) => {
      if (loading) return <CircularProgress/>
      if (error) return <p>Error: {error}</p>
      return <List bugs={data.defaultRepository.bugs} fetchMore={fetchMore}/>
    }}
  </Query>
)

export default ListQuery