import { RiCloseLine } from '@remixicon/react'
import { noop } from 'es-toolkit/function'
import * as React from 'react'
import { useState } from 'react'
import { Trans, useTranslation } from 'react-i18next'
import { useContext } from 'use-context-selector'
import Button from '@/app/components/base/button'
import Input from '@/app/components/base/input'
import Modal from '@/app/components/base/modal'
import { ToastContext } from '@/app/components/base/toast'
import { useAppContext } from '@/context/app-context'
import {
  ownershipTransfer,
  sendOwnerEmail,
  verifyOwnerEmail,
} from '@/service/common'
import MemberSelector from './member-selector'

type Props = {
  show: boolean
  onClose: () => void
}

enum STEP {
  start = 'start',
  verify = 'verify',
  transfer = 'transfer',
}

const TransferOwnershipModal = ({ onClose, show }: Props) => {
  const { t } = useTranslation()
  const { notify } = useContext(ToastContext)
  const { currentWorkspace, userProfile } = useAppContext()
  const [step, setStep] = useState<STEP>(STEP.start)
  const [code, setCode] = useState<string>('')
  const [time, setTime] = useState<number>(0)
  const [stepToken, setStepToken] = useState<string>('')
  const [newOwner, setNewOwner] = useState<string>('')
  const [isTransfer, setIsTransfer] = useState<boolean>(false)

  const startCount = () => {
    setTime(60)
    const timer = setInterval(() => {
      setTime((prev) => {
        if (prev <= 0) {
          clearInterval(timer)
          return 0
        }
        return prev - 1
      })
    }, 1000)
  }

  const sendEmail = async () => {
    try {
      const res = await sendOwnerEmail({})
      startCount()
      if (res.data)
        setStepToken(res.data)
    }
    catch (error) {
      notify({
        type: 'error',
        message: `Error sending verification code: ${error ? (error as any).message : ''}`,
      })
    }
  }

  const verifyEmailAddress = async (code: string, token: string, callback?: () => void) => {
    try {
      const res = await verifyOwnerEmail({
        code,
        token,
      })
      if (res.is_valid) {
        setStepToken(res.token)
        callback?.()
      }
      else {
        notify({
          type: 'error',
          message: 'Verifying email failed',
        })
      }
    }
    catch (error) {
      notify({
        type: 'error',
        message: `Error verifying email: ${error ? (error as any).message : ''}`,
      })
    }
  }

  const sendCodeToOriginEmail = async () => {
    await sendEmail()
    setStep(STEP.verify)
  }

  const handleVerifyOriginEmail = async () => {
    await verifyEmailAddress(code, stepToken, () => setStep(STEP.transfer))
    setCode('')
  }

  const handleTransfer = async () => {
    setIsTransfer(true)
    try {
      await ownershipTransfer(
        newOwner,
        {
          token: stepToken,
        },
      )
      globalThis.location.reload()
    }
    catch (error) {
      notify({
        type: 'error',
        message: `Error ownership transfer: ${error ? (error as any).message : ''}`,
      })
    }
    finally {
      setIsTransfer(false)
    }
  }

  return (
    <Modal
      isShow={show}
      onClose={noop}
      className="!w-[420px] !p-6"
    >
      <div className="absolute right-5 top-5 cursor-pointer p-1.5" onClick={onClose}>
        <RiCloseLine className="h-5 w-5 text-text-tertiary" />
      </div>
      {step === STEP.start && (
        <>
          <div className="title-2xl-semi-bold pb-3 text-text-primary">{t('members.transferModal.title', { ns: 'common' })}</div>
          <div className="space-y-1 pb-2 pt-1">
            <div className="body-md-medium text-text-destructive">{t('members.transferModal.warning', { ns: 'common', workspace: currentWorkspace.name.replace(/'/g, '’') })}</div>
            <div className="body-md-regular text-text-secondary">{t('members.transferModal.warningTip', { ns: 'common' })}</div>
            <div className="body-md-regular text-text-secondary">
              <Trans
                i18nKey="common.members.transferModal.sendTip"
                components={{ email: <span className="body-md-medium text-text-primary"></span> }}
                values={{ email: userProfile.email }}
              />
            </div>
          </div>
          <div className="pt-3"></div>
          <div className="space-y-2">
            <Button
              className="!w-full"
              variant="primary"
              onClick={sendCodeToOriginEmail}
            >
              {t('members.transferModal.sendVerifyCode', { ns: 'common' })}
            </Button>
            <Button
              className="!w-full"
              onClick={onClose}
            >
              {t('operation.cancel', { ns: 'common' })}
            </Button>
          </div>
        </>
      )}
      {step === STEP.verify && (
        <>
          <div className="title-2xl-semi-bold pb-3 text-text-primary">{t('members.transferModal.verifyEmail', { ns: 'common' })}</div>
          <div className="pb-2 pt-1">
            <div className="body-md-regular text-text-secondary">
              <Trans
                i18nKey="common.members.transferModal.verifyContent"
                components={{ email: <span className="body-md-medium text-text-primary"></span> }}
                values={{ email: userProfile.email }}
              />
            </div>
            <div className="body-md-regular text-text-secondary">{t('members.transferModal.verifyContent2', { ns: 'common' })}</div>
          </div>
          <div className="pt-3">
            <div className="system-sm-medium mb-1 flex h-6 items-center text-text-secondary">{t('members.transferModal.codeLabel', { ns: 'common' })}</div>
            <Input
              className="!w-full"
              placeholder={t('members.transferModal.codePlaceholder', { ns: 'common' })}
              value={code}
              onChange={e => setCode(e.target.value)}
              maxLength={6}
            />
          </div>
          <div className="mt-3 space-y-2">
            <Button
              disabled={code.length !== 6}
              className="!w-full"
              variant="primary"
              onClick={handleVerifyOriginEmail}
            >
              {t('members.transferModal.continue', { ns: 'common' })}
            </Button>
            <Button
              className="!w-full"
              onClick={onClose}
            >
              {t('operation.cancel', { ns: 'common' })}
            </Button>
          </div>
          <div className="system-xs-regular mt-3 flex items-center gap-1 text-text-tertiary">
            <span>{t('members.transferModal.resendTip', { ns: 'common' })}</span>
            {time > 0 && (
              <span>{t('members.transferModal.resendCount', { ns: 'common', count: time })}</span>
            )}
            {!time && (
              <span onClick={sendCodeToOriginEmail} className="system-xs-medium cursor-pointer text-text-accent-secondary">{t('members.transferModal.resend', { ns: 'common' })}</span>
            )}
          </div>
        </>
      )}
      {step === STEP.transfer && (
        <>
          <div className="title-2xl-semi-bold pb-3 text-text-primary">{t('members.transferModal.title', { ns: 'common' })}</div>
          <div className="space-y-1 pb-2 pt-1">
            <div className="body-md-medium text-text-destructive">{t('members.transferModal.warning', { ns: 'common', workspace: currentWorkspace.name.replace(/'/g, '’') })}</div>
            <div className="body-md-regular text-text-secondary">{t('members.transferModal.warningTip', { ns: 'common' })}</div>
          </div>
          <div className="pt-3">
            <div className="system-sm-medium mb-1 flex h-6 items-center text-text-secondary">{t('members.transferModal.transferLabel', { ns: 'common' })}</div>
            <MemberSelector
              exclude={[userProfile.id]}
              value={newOwner}
              onSelect={setNewOwner}
            />
          </div>
          <div className="mt-4 space-y-2">
            <Button
              disabled={!newOwner || isTransfer}
              className="!w-full"
              variant="warning"
              onClick={handleTransfer}
            >
              {t('members.transferModal.transfer', { ns: 'common' })}
            </Button>
            <Button
              className="!w-full"
              onClick={onClose}
            >
              {t('operation.cancel', { ns: 'common' })}
            </Button>
          </div>
        </>
      )}
    </Modal>
  )
}

export default TransferOwnershipModal