export default function useHash()

in initializer-page/src/components/utils/Hash.js [23:52]

• 26 lines of code
• 4 McCabe index (conditional complexity)

export default function useHash() {
  const [hash, setHash] = useState(getHash())

  const { dispatch } = useContext(InitializrContext)
  const { config, complete } = useContext(AppContext)

  useEffect(() => {
    const handler = () => {
      setHash(getHash())
    }
    window.addEventListener('hashchange', handler)
    return () => {
      window.removeEventListener('hashchange', handler)
    }
  }, [])

  useEffect(() => {
    if (complete && hash) {
      const params = queryString.parse(`?${hash.substr(2)}`)
      dispatch({ type: 'LOAD', payload: { params, lists: config.lists } })
      clearHash()
      setHash('')
      if (isValidParams(params)) {
        toast.success(`分享配置 已加载.`)
      }
    }
  }, [complete, hash, dispatch, config])

  return null
}