import styles from 'styles/Main.module.scss'
import { useState } from 'react'
import useUser from 'hooks/useUser'
import useSettings from 'hooks/useSettings'
import fetchJson from 'helpers/fetchJson'
import { Layout } from 'components'
import Splash from 'components/Splash'

const Verify = () => {
  const { t } = useSettings()
  const [errorMsg, setErrorMsg] = useState('')
  const [loading, setLoading] = useState(false)
  const [sending, setSending] = useState(false)
  const [resent, setResent] = useState(false)
  const { user, mutateUser } = useUser({
    redirectToLogin: true,
    redirectToApps: true
  })

  const handleSendMail = async e => {
    e.preventDefault()
    setErrorMsg('')
    setSending(true)
    try {
      await fetch('/api/verify')
      setResent(true)
    } catch (error) {
      setErrorMsg(t('verification_mail_error'))
    } finally {
      setSending(false)
    }
  }

  const handleKey = async e => {
    e.preventDefault()
    setLoading(true)
    const key = e.currentTarget.key.value
    try {
      mutateUser(
        await fetchJson('/api/verify', {
          method: 'POST',
          headers: { 'Content-Type': 'application/json' },
          body: JSON.stringify({ _id: user._id, key })
        })
      )
    } catch (err) {
      setErrorMsg(t('verification_error'))
    } finally {
      setLoading(false)
    }
  }

  return (
    <Layout>
      {!user || loading
        ? (
          <Splash fixed />
          )
        : (
          <div className={`window window--popup ${styles.verify}`}>
            <p>{t('verification_title')}</p>
            <p>{`${t('verification_text')} ${user.email}`}</p>
            <form onSubmit={handleKey}>
              <input type='text' placeholder={t('verification_key')} name='key' />
              <button className='window__button' type='submit'>{t('verify')}</button>
            </form>
            {
              sending
                ? (
                  <p>{t('sending')}</p>
                  )
                : (
                    resent
                      ? (
                        <p>{t('verification_sent_again')}</p>
                        )
                      : (
                        <p>{t('verification_not_received')}&nbsp;
                          <span className={styles.email} onClick={handleSendMail}>{t('verification_send_again')}</span>.
                        </p>
                        )
                  )
            }
            {errorMsg && <p className={styles.error}>{errorMsg}</p>}
          </div>
          )}
    </Layout>
  )
}

export default Verify