Gabarito para o passo 'Conectando backend e frontend'

// store-block/react/Countdown.tsx
import React, { useState } from 'react'
import { useQuery } from 'react-apollo'
import useProduct from 'vtex.product-context/useProduct'
import { useCssHandles } from 'vtex.css-handles'

import { TimeSplit } from './typings/global'
import { tick, getTwoDaysFromNow } from './utils/time'
import productReleaseDate from './queries/productReleaseDate.graphql'

const DEFAULT_TARGET_DATE = getTwoDaysFromNow()

const CSS_HANDLES = ['countdown']

const Countdown: StorefrontFunctionComponent = () => {
  const [timeRemaining, setTime] = useState<TimeSplit>({
    hours: '00',
    minutes: '00',
    seconds: '00',
  })

  const handles = useCssHandles(CSS_HANDLES)

  const { product } = useProduct()
  const { data, loading, error } = useQuery(productReleaseDate, {
    variables: {
      slug: product?.linkText,
    },
    ssr: false,
  })

  if (!product) {
    return (
      <div>
        <span>There is no product context.</span>
      </div>
    )
  }

  if (loading) {
    return (
      <div>
        <span>Loading...</span>
      </div>
    )
  }
  if (error) {
    return (
      <div>
        <span>Error!</span>
      </div>
    )
  }

  tick(data?.product?.releaseDate || DEFAULT_TARGET_DATE, setTime)

  return (
    <div className={`${handles.countdown} c-muted-1 db tc`}>
      <h1>{`${timeRemaining.hours}:${timeRemaining.minutes}:${timeRemaining.seconds}`}</h1>
    </div>
  )
}

Countdown.schema = {
  title: 'editor.countdown.title',
  description: 'editor.countdown.description',
  type: 'object',
  properties: {
    title: {
      title: 'I am a title',
      type: 'string',
      default: null,
    },
    targetDate: {
      title: 'Final date',
      description: 'Final date used in the countdown',
      type: 'string',
      default: null,
    },
  },
}

export default Countdown
{
  "vendor": "vtex",
  "name": "countdown",
  "version": "0.0.1",
  "title": "Countdown",
  "description": "Countdown component",
  "defaultLocale": "pt-BR",
  "builders": {
    "messages": "1.x",
    "store": "0.x",
    "react": "3.x"
  },
  "dependencies": {
    "vtex.styleguide": "9.x",
    "vtex.css-handles": "0.x",
    "vtex.search-graphql": "0.x",
    "vtex.product-context": "0.x"
  },
  "$schema": "https://raw.githubusercontent.com/vtex/node-vtex-api/master/gen/manifest.schema"
}
# store-block/react/graphql/productReleaseData.graphql
query productReleaseDate($slug: String) {
  product(slug: $slug) {
    releaseDate
  }
}

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