full-stack-fastapi-template/frontend/src/components/UserSettings/DeleteConfirmation.tsx

import React from 'react'
import {
  AlertDialog,
  AlertDialogBody,
  AlertDialogContent,
  AlertDialogFooter,
  AlertDialogHeader,
  AlertDialogOverlay,
  Button,
} from '@chakra-ui/react'
import { useForm } from 'react-hook-form'
import { useMutation, useQueryClient } from 'react-query'

import { ApiError, UserOut, UsersService } from '../../client'
import useAuth from '../../hooks/useAuth'
import useCustomToast from '../../hooks/useCustomToast'

interface DeleteProps {
  isOpen: boolean
  onClose: () => void
}

const DeleteConfirmation: React.FC<DeleteProps> = ({ isOpen, onClose }) => {
  const queryClient = useQueryClient()
  const showToast = useCustomToast()
  const cancelRef = React.useRef<HTMLButtonElement | null>(null)
  const {
    handleSubmit,
    formState: { isSubmitting },
  } = useForm()
  const currentUser = queryClient.getQueryData<UserOut>('currentUser')
  const { logout } = useAuth()

  const deleteCurrentUser = async (id: number) => {
    await UsersService.deleteUser({ userId: id })
  }

  const mutation = useMutation(deleteCurrentUser, {
    onSuccess: () => {
      showToast(
        'Success',
        'Your account has been successfully deleted.',
        'success',
      )
      logout()
      onClose()
    },
    onError: (err: ApiError) => {
      const errDetail = err.body?.detail
      showToast('Something went wrong.', `${errDetail}`, 'error')
    },
    onSettled: () => {
      queryClient.invalidateQueries('currentUser')
    },
  })

  const onSubmit = async () => {
    mutation.mutate(currentUser!.id)
  }

  return (
    <>
      <AlertDialog
        isOpen={isOpen}
        onClose={onClose}
        leastDestructiveRef={cancelRef}
        size={{ base: 'sm', md: 'md' }}
        isCentered
      >
        <AlertDialogOverlay>
          <AlertDialogContent as="form" onSubmit={handleSubmit(onSubmit)}>
            <AlertDialogHeader>Confirmation Required</AlertDialogHeader>

            <AlertDialogBody>
              All your account data will be{' '}
              <strong>permanently deleted.</strong> If you are sure, please
              click <strong>"Confirm"</strong> to proceed. This action cannot be
              undone.
            </AlertDialogBody>

            <AlertDialogFooter gap={3}>
              <Button variant="danger" type="submit" isLoading={isSubmitting}>
                Confirm
              </Button>
              <Button
                ref={cancelRef}
                onClick={onClose}
                isDisabled={isSubmitting}
              >
                Cancel
              </Button>
            </AlertDialogFooter>
          </AlertDialogContent>
        </AlertDialogOverlay>
      </AlertDialog>
    </>
  )
}

export default DeleteConfirmation