import { signIn } from 'next-auth/client'
import Button from 'react-bootstrap/Button'
import styles from './login.module.css'
import GithubIcon from '../svgs/github-fill.svg'
import TwitterIcon from '../svgs/twitter-fill.svg'
import LightningIcon from '../svgs/bolt.svg'
import { Form, Input, SubmitButton } from '../components/form'
import * as Yup from 'yup'
import { useState } from 'react'
import Alert from 'react-bootstrap/Alert'
import LayoutCenter from '../components/layout-center'
import { useRouter } from 'next/router'
import { LightningAuth } from './lightning-auth'

export const EmailSchema = Yup.object({
  email: Yup.string().email('email is no good').required('required')
})

export function EmailLoginForm ({ callbackUrl }) {
  return (
    <Form
      initial={{
        email: ''
      }}
      schema={EmailSchema}
      onSubmit={async ({ email }) => {
        signIn('email', { email, callbackUrl })
      }}
    >
      <Input
        label='Email'
        name='email'
        placeholder='email@example.com'
        required
        autoFocus
      />
      <SubmitButton variant='secondary' className={styles.providerButton}>Login with Email</SubmitButton>
    </Form>
  )
}

export default function Login ({ providers, callbackUrl, error, Header }) {
  const errors = {
    Signin: 'Try signing with a different account.',
    OAuthSignin: 'Try signing with a different account.',
    OAuthCallback: 'Try signing with a different account.',
    OAuthCreateAccount: 'Try signing with a different account.',
    EmailCreateAccount: 'Try signing with a different account.',
    Callback: 'Try signing with a different account.',
    OAuthAccountNotLinked: 'To confirm your identity, sign in with the same account you used originally.',
    EmailSignin: 'Check your email address.',
    CredentialsSignin: 'Lightning auth failed.',
    default: 'Unable to sign in.'
  }

  const [errorMessage, setErrorMessage] = useState(error && (errors[error] ?? errors.default))
  const router = useRouter()

  return (
    <LayoutCenter noFooter>
      <div className={styles.login}>
        {Header && <Header />}
        <div className='text-center font-weight-bold text-muted pb-4'>
          Not registered? Just login, we'll automatically create an account.
        </div>
        {errorMessage &&
          <Alert variant='danger' onClose={() => setErrorMessage(undefined)} dismissible>{errorMessage}</Alert>}
        {router.query.type === 'lightning'
          ? <LightningAuth callbackUrl={callbackUrl} />
          : (
            <>
              <Button
                className={`mt-2 ${styles.providerButton}`}
                variant='primary'
                onClick={() => router.push({
                  pathname: router.pathname,
                  query: { ...router.query, type: 'lightning' }
                })}
              >
                <LightningIcon
                  width={20}
                  height={20}
                  className='mr-3'
                />Login with Lightning
              </Button>
              {Object.values(providers).map(provider => {
                if (provider.name === 'Email' || provider.name === 'Lightning') {
                  return null
                }
                const [variant, Icon] =
          provider.name === 'Twitter'
            ? ['twitter', TwitterIcon]
            : ['dark', GithubIcon]

                return (
                  <Button
                    className={`mt-2 ${styles.providerButton}`}
                    key={provider.name}
                    variant={variant}
                    onClick={() => signIn(provider.id, { callbackUrl })}
                  >
                    <Icon
                      className='mr-3'
                    />Login with {provider.name}
                  </Button>
                )
              })}
              <div className='mt-2 text-center text-muted font-weight-bold'>or</div>
              <EmailLoginForm callbackUrl={callbackUrl} />
            </>)}
      </div>
    </LayoutCenter>
  )
}