stacker.news/pages/items/[id]/edit.js

import { ITEM } from '../../../fragments/items'
import { getGetServerSideProps } from '../../../api/ssrApollo'
import { DiscussionForm } from '../../../components/discussion-form'
import { LinkForm } from '../../../components/link-form'
import { CenterLayout } from '../../../components/layout'
import JobForm from '../../../components/job-form'
import { PollForm } from '../../../components/poll-form'
import { BountyForm } from '../../../components/bounty-form'
import SubSelect from '../../../components/sub-select-form'
import { useState } from 'react'
import { useQuery } from '@apollo/client'
import { useRouter } from 'next/router'
import PageLoading from '../../../components/page-loading'
import { FeeButtonProvider } from '../../../components/fee-button'

export const getServerSideProps = getGetServerSideProps({
  query: ITEM,
  notFound: data => !data.item,
  authRequired: true
})

export default function PostEdit ({ ssrData }) {
  const router = useRouter()
  const { data } = useQuery(ITEM, { variables: { id: router.query.id } })
  if (!data && !ssrData) return <PageLoading />

  const { item } = data || ssrData
  const [sub, setSub] = useState(item.subName)

  const editThreshold = new Date(item.createdAt).getTime() + 10 * 60000

  let FormType = DiscussionForm
  if (item.isJob) {
    FormType = JobForm
  } else if (item.url) {
    FormType = LinkForm
  } else if (item.pollCost) {
    FormType = PollForm
  } else if (item.bounty) {
    FormType = BountyForm
  }

  const existingBoostLineItem = item.boost
    ? {
        existingBoost: {
          label: 'old boost',
          term: `- ${item.boost}`,
          modifier: cost => cost - item.boost
        }
      }
    : undefined

  return (
    <CenterLayout sub={sub}>
      <FeeButtonProvider baseLineItems={existingBoostLineItem}>
        <FormType item={item} editThreshold={editThreshold}>
          {!item.isJob && <SubSelect label='sub' item={item} setSub={setSub} sub={sub} />}
        </FormType>
      </FeeButtonProvider>
    </CenterLayout>
  )
}