import { zodResolver } from '@hookform/resolvers/zod'
import { SupportCategories } from '@supabase/shared-types/out/constants'
import { LOCAL_STORAGE_KEYS } from 'common'
import { useEffect, useState } from 'react'
import { useForm } from 'react-hook-form'
import { toast } from 'sonner'
import {
  Button,
  Dialog,
  DialogContent,
  DialogDescription,
  DialogFooter,
  DialogHeader,
  DialogSection,
  DialogTitle,
  DialogTrigger,
  Form,
  FormControl,
  FormField,
  FormItem,
  FormLabel,
  Input,
  Separator,
} from 'ui'
import * as z from 'zod'

import { NO_PROJECT_MARKER } from '@/components/interfaces/Support/SupportForm.utils'
import { useSendSupportTicketMutation } from '@/data/feedback/support-ticket-send'
import { useOrganizationsQuery } from '@/data/organizations/organizations-query'
import { useProfile } from '@/lib/profile'

const setDeletionRequestFlag = () => {
  const expiryDate = new Date()
  expiryDate.setDate(expiryDate.getDate() + 30)
  localStorage.setItem(LOCAL_STORAGE_KEYS.ACCOUNT_DELETION_REQUEST, expiryDate.toString())
}

const hasActiveDeletionRequest = () => {
  const expiryDateStr = localStorage.getItem(LOCAL_STORAGE_KEYS.ACCOUNT_DELETION_REQUEST)
  if (!expiryDateStr) return false

  const expiryDate = new Date(expiryDateStr)
  const now = new Date()

  if (now > expiryDate) {
    localStorage.removeItem(LOCAL_STORAGE_KEYS.ACCOUNT_DELETION_REQUEST)
    return false
  }

  return true
}

export const DeleteAccountButton = () => {
  const { profile } = useProfile()
  const [isOpen, setIsOpen] = useState(false)
  const { data: organizations, isSuccess } = useOrganizationsQuery()

  const accountEmail = profile?.primary_email
  const FormSchema = z.object({ account: z.string() })
  const form = useForm<z.infer<typeof FormSchema>>({
    mode: 'onBlur',
    reValidateMode: 'onBlur',
    resolver: zodResolver(FormSchema as any),
    defaultValues: { account: '' },
  })
  const { account } = form.watch()

  const { mutate: submitSupportTicket, isPending } = useSendSupportTicketMutation({
    onSuccess: () => {
      setIsOpen(false)
      setDeletionRequestFlag()
      toast.success(
        'Successfully submitted account deletion request - we will reach out to you via email once the request is completed!',
        { duration: 8000 }
      )
    },
    onError: (error) => {
      toast.error(`Failed to submit account deletion request: ${error}`)
    },
  })

  const onConfirmDelete = async () => {
    if (!accountEmail) return console.error('Account information is required')

    if (hasActiveDeletionRequest()) {
      return toast.error('You have already submitted a deletion request within the last 30 days.')
    }

    const payload = {
      subject: 'Account Deletion Request',
      message: 'I want to delete my account.',
      category: SupportCategories.ACCOUNT_DELETION,
      severity: 'Low',
      allowSupportAccess: false,
      verified: true,
      projectRef: NO_PROJECT_MARKER,
    }

    submitSupportTicket(payload)
  }

  useEffect(() => {
    if (isOpen && form !== undefined) form.reset({ account: '' })
  }, [form, isOpen])

  return (
    <Dialog open={isOpen} onOpenChange={setIsOpen}>
      <DialogTrigger asChild>
        <Button type="danger" loading={!accountEmail}>
          Request to delete account
        </Button>
      </DialogTrigger>
      <DialogContent className="w-[500px]!">
        <DialogHeader>
          {(organizations ?? []).length > 0 ? (
            <>
              <DialogTitle>Leave all organizations before requesting account deletion</DialogTitle>
              <DialogDescription>
                This will allow us to process your account deletion request faster
              </DialogDescription>
            </>
          ) : (
            <>
              <DialogTitle>Are you sure you want to delete your account?</DialogTitle>
              <DialogDescription>
                Deleting your account is permanent and{' '}
                <span className="text-foreground">cannot</span> be undone
              </DialogDescription>
            </>
          )}
        </DialogHeader>

        <Separator />

        {isSuccess && (
          <>
            {organizations.length > 0 ? (
              <>
                <DialogSection>
                  <span className="text-sm text-foreground flex flex-col gap-y-2">
                    Before submitting an account deletion request, please ensure that your account
                    is not part of any organization. This can be done by leaving or deleting the
                    organizations that you are a part of.
                  </span>
                </DialogSection>
                <DialogFooter>
                  <Button block type="primary" size="medium" onClick={() => setIsOpen(false)}>
                    Understood
                  </Button>
                </DialogFooter>
              </>
            ) : (
              <Form {...form}>
                <form
                  id="account-deletion-request"
                  onSubmit={form.handleSubmit(() => onConfirmDelete())}
                >
                  <DialogSection>
                    <FormField
                      name="account"
                      control={form.control}
                      render={({ field }) => (
                        <FormItem>
                          <FormLabel>
                            Please type{' '}
                            <span className="font-bold">{profile?.primary_email ?? ''}</span> to
                            confirm
                          </FormLabel>
                          <FormControl>
                            <Input
                              autoFocus
                              {...field}
                              autoComplete="off"
                              disabled={isPending}
                              placeholder="Enter the account above"
                            />
                          </FormControl>
                        </FormItem>
                      )}
                    />
                  </DialogSection>

                  <DialogFooter>
                    <Button
                      block
                      size="small"
                      type="danger"
                      htmlType="submit"
                      loading={isPending}
                      disabled={account !== accountEmail || isPending}
                    >
                      Submit request for account deletion
                    </Button>
                  </DialogFooter>
                </form>
              </Form>
            )}
          </>
        )}
      </DialogContent>
    </Dialog>
  )
}