FunctionProject/website/pages/users/login.jsx

import { useContext, useState } from 'react'
import { useRouter } from 'next/router'
import Link from 'next/link'
import htmlParser from 'html-react-parser'
import Loader from '../../components/Loader'
import HeadTag from '../../components/HeadTag'
import { UserContext } from '../../contexts/UserContext'
import withoutAuth from '../../hoc/withoutAuth'

const Login = () => {
  const router = useRouter()
  const [inputState, setInputState] = useState({})
  const { loginUser, messageLogin, loginLoading, isAuth } = useContext(UserContext)

  const handleChange = (event) => {
    const inputStateNew = { ...inputState }
    inputStateNew[event.target.name] = event.target.value
    setInputState(inputStateNew)
  }

  const handleSubmit = async (event) => {
    event.preventDefault()
    if (!isAuth) {
      await loginUser(inputState)
    }
  }

  return (
    <>
      <HeadTag
        title='Se connecter - FunctionProject'
        description='Connexion à FunctionProject.'
      />
      <div className='container Register-Login__container'>
        <div className='row Register-Login__row justify-content-center'>
          <div className='col-20'>
            <h1 className='Register-Login__title'>Se connecter</h1>
            <form onSubmit={handleSubmit}>
              <div className='form-group'>
                <label className='form-label' htmlFor='email'>Email :</label>
                <input onChange={handleChange} type='email' name='email' id='email' className='form-control' placeholder='email@gmail.com' />
              </div>

              <div className='form-group'>
                <label className='form-label' htmlFor='password'>Mot de passe :</label>
                <input onChange={handleChange} type='password' name='password' id='password' className='form-control' placeholder='******' />
                <p>
                  <Link href='/users/forgotPassword'>
                    <a className='Register-Login__Forgot-password'>Mot de passe oublié ?</a>
                  </Link>
                </p>
              </div>

              <div className='form-group text-center'>
                <button type='submit' className='btn btn-dark'>Envoyer</button>
              </div>
            </form>
            <div className='form-result text-center'>
              {(router.query.isConfirmed !== undefined && messageLogin === '') && <p className='form-success'><b>Succès:</b> Votre compte a bien été confirmé, vous pouvez maintenant vous connectez!</p>}
              {(router.query.isSuccessEdit !== undefined && messageLogin === '') && <p className='form-success'><b>Succès:</b> Votre profil a bien été modifié, vous pouvez maintenant vous connectez!</p>}
              {
                (loginLoading)
                  ? <Loader />
                  : htmlParser(messageLogin)
              }
            </div>
          </div>
        </div>
      </div>
    </>
  )
}

export default withoutAuth(Login)