import React, { useState } from 'react'
import { useAccess } from './useAccess.hook'
import classes from './Access.module.css'
import { Select, Space, Title, Image, Button, Modal, PasswordInput, TextInput, PinInput } from '@mantine/core'
import { useDisclosure } from '@mantine/hooks'
import left from '../images/login.png'
import { IconLock, IconUser, IconUsers, IconSettings, IconServer, IconKey } from '@tabler/icons-react'
import { modals } from '@mantine/modals'

export function Access() {
  const { state, actions } = useAccess()
  const [urlOpened, { open: urlOpen, close: urlClose }] = useDisclosure(false)
  const [otpOpened, { open: otpOpen, close: otpClose }] = useDisclosure(false)
  const [disabled, setDisabled] = useState(false)

  const login = async () => {
    if (!state.loading) {
      actions.setLoading(true)
      try {
        if (state.mode === 'account') {
          await actions.accountLogin()
        } else if (state.mode === 'create') {
          await actions.accountCreate()
        } else if (state.mode === 'reset') {
          await actions.accountAccess()
        } else if (state.mode === 'admin') {
          await actions.adminLogin()
        }
        otpClose()
      } catch (err) {
        const { message } = err as { message: string }
        console.log(message)
        if (message === '405' || message === '403' || message === '429') {
          if (message === '429') {
            setDisabled(true)
          } else {
            setDisabled(false)
          }
          otpOpen()
        } else {
          modals.openConfirmModal({
            title: state.strings.operationFailed,
            withCloseButton: true,
            overlayProps: {
              backgroundOpacity: 0.55,
              blur: 3,
            },
            children: <div>{state.strings.tryAgain}</div>,
            cancelProps: { display: 'none' },
            confirmProps: { display: 'none' },
          })
        }
      }
      actions.setLoading(false)
    }
  }

  return (
    <div className={classes.split}>
      {state.layout === 'large' && (
        <div className={classes.left}>
          <Image className={classes.splash} src={left} fit="contain" />
        </div>
      )}
      {state.layout != null && (
        <div className={classes.right}>
          <div className={classes.frame}>
            {state.mode !== 'admin' && <Button variant="transparent" className={classes.float} leftSection={<IconSettings size={28} />} onClick={() => actions.setMode('admin')} />}
            {state.mode === 'admin' && <Button variant="transparent" className={classes.float} leftSection={<IconUser size={28} />} onClick={() => actions.setMode('account')} />}
            <Title className={classes.title} order={1}>
              Databag
            </Title>
            {state.mode === 'account' && (
              <>
                <Title order={3}>{state.strings.login}</Title>
                <Button size="compact-sm" variant="transparent" onClick={urlOpen}>
                  {state.host}
                </Button>
                <Space h="md" />
                <TextInput
                  className={classes.input}
                  size="md"
                  value={state.username}
                  leftSectionPointerEvents="none"
                  leftSection={<IconUser />}
                  placeholder={state.strings.username}
                  onChange={(event) => actions.setUsername(event.currentTarget.value)}
                />
                <PasswordInput
                  className={classes.input}
                  size="md"
                  value={state.password}
                  leftSection={<IconLock />}
                  placeholder={state.strings.password}
                  onChange={(event) => actions.setPassword(event.currentTarget.value)}
                  onKeyDown={(ev) => {
                    if (ev.code === 'Enter' && state.password && state.username) login()
                  }}
                />
                <Space h="md" />
                <Button variant="filled" className={classes.submit} onClick={login} loading={state.loading} disabled={!state.username || !state.password}>
                  {state.strings.login}
                </Button>
                <Button size="compact-sm" variant="subtle" onClick={() => actions.setMode('create')}>
                  {state.strings.createAccount}
                </Button>
                <Button size="compact-sm" variant="subtle" onClick={() => actions.setMode('reset')}>
                  {state.strings.forgotPassword}
                </Button>
              </>
            )}
            {state.mode === 'reset' && (
              <>
                <Title order={3}>{state.strings.accessAccount}</Title>
                <Button size="compact-sm" variant="transparent" onClick={urlOpen}>
                  {state.host}
                </Button>
                <Space h="md" />
                <TextInput
                  className={classes.input}
                  size="md"
                  value={state.token}
                  leftSectionPointerEvents="none"
                  leftSection={<IconKey />}
                  placeholder={state.strings.accessCode}
                  onChange={(event) => actions.setToken(event.currentTarget.value)}
                />
                <Space h="md" />
                <Button variant="filled" className={classes.submit} disabled={!state.token} onClick={login} loading={state.loading}>
                  {state.strings.login}
                </Button>
                <Button size="compact-sm" variant="subtle" onClick={() => actions.setMode('account')}>
                  {state.strings.accountLogin}
                </Button>
              </>
            )}
            {state.mode === 'create' && (
              <>
                <Space h="md" />
                <Title order={3}>{state.strings.createAccount}</Title>
                <Button size="compact-sm" variant="transparent" onClick={urlOpen}>
                  {state.host}
                </Button>
                <Space h="md" />
                <TextInput
                  className={state.available === 0 ? classes.input : classes.hidden}
                  size="md"
                  value={state.token}
                  leftSectionPointerEvents="none"
                  leftSection={<IconKey />}
                  placeholder={state.strings.accessCode}
                  onChange={(event) => actions.setToken(event.currentTarget.value)}
                />
                <TextInput
                  className={classes.input}
                  size="md"
                  value={state.username}
                  leftSectionPointerEvents="none"
                  leftSection={<IconUser />}
                  rightSection={state.taken ? <IconUsers /> : null}
                  placeholder={state.strings.username}
                  onChange={(event) => actions.setUsername(event.currentTarget.value)}
                  error={state.taken ? true : false}
                />
                <PasswordInput
                  className={classes.input}
                  size="md"
                  value={state.password}
                  leftSection={<IconLock />}
                  placeholder={state.strings.password}
                  onChange={(event) => actions.setPassword(event.currentTarget.value)}
                />
                <PasswordInput
                  className={classes.input}
                  size="md"
                  value={state.confirm}
                  leftSection={<IconLock />}
                  placeholder={state.strings.confirmPassword}
                  onChange={(event) => actions.setConfirm(event.currentTarget.value)}
                />
                <Space h="md" />
                <Button variant="filled" className={classes.submit} onClick={login} disabled={state.taken || !state.username || !state.password || state.password !== state.confirm}>
                  {state.strings.create}
                </Button>
                <Button variant="subtle" onClick={() => actions.setMode('account')} size="compact-sm">
                  {state.strings.accountLogin}
                </Button>
              </>
            )}
            {state.mode === 'admin' && (
              <>
                <Title order={3}>{state.strings.admin}</Title>
                <Button size="compact-sm" variant="transparent" onClick={urlOpen}>
                  {state.host}
                </Button>
                <Space h="md" />
                <PasswordInput
                  className={classes.input}
                  size="md"
                  value={state.password}
                  leftSection={<IconLock />}
                  placeholder={state.strings.password}
                  onChange={(event) => actions.setPassword(event.currentTarget.value)}
                />
                <Space h="md" />
                <Button variant="filled" className={classes.submit} disabled={!state.password} onClick={login} loading={state.loading}>
                  {state.strings.login}
                </Button>
              </>
            )}
            <div className={classes.settings}>
              <Select label={state.strings.theme} data={state.themes} value={state.scheme} onChange={(theme) => actions.setTheme(theme as string)} />
              <Select label={state.strings.language} data={state.languages} value={state.language} onChange={(language) => actions.setLanguage(language as string)} />
            </div>
          </div>
        </div>
      )}
      <Modal opened={urlOpened} onClose={urlClose} withCloseButton={false} overlayProps={{ backgroundOpacity: 0.55, blur: 3 }} centered>
        <TextInput
          className={classes.urlInput}
          size="md"
          leftSectionPointerEvents="none"
          leftSection={<IconServer />}
          placeholder={state.strings.host}
          value={state.host}
          onKeyDown={(ev) => {
            if (ev.code === 'Enter') urlClose()
          }}
          onChange={(event) => actions.setNode(event.currentTarget.value)}
        />
      </Modal>
      <Modal opened={otpOpened} onClose={otpClose} withCloseButton={false} overlayProps={{ backgroundOpacity: 0.55, blur: 3 }} centered>
        <div className={classes.mfa}>
          <div className={classes.mfaTitle}>{state.strings.mfaTitle}</div>
          <div className={classes.mfaDescription}>{state.strings.mfaEnter}</div>
          <PinInput value={state.code} length={6} className={classes.mfaPin} onChange={(event) => actions.setCode(event)} />
          <div className={classes.mfaDisabled}>{disabled ? state.strings.mfaDisabled : ''}</div>
          <div className={classes.mfaControl}>
            <Button variant="outline" onClick={otpClose}>
              {state.strings.cancel}
            </Button>
            <Button variant="filled" onClick={login} loading={state.loading} disabled={state.code.length !== 6}>
              {state.strings.login}
            </Button>
          </div>
        </div>
      </Modal>
    </div>
  )
}