packages/page-staking-legacy/src/Actions/Account/InputValidationController.tsx
// Copyright 2017-2024 @polkadot/app-staking authors & contributors
// SPDX-License-Identifier: Apache-2.0
import type { DeriveBalancesAll } from '@polkadot/api-derive/types';
import type { Option } from '@polkadot/types';
import type { AccountId } from '@polkadot/types/interfaces';
import type { PalletStakingStakingLedger } from '@polkadot/types/lookup';
import React, { useEffect, useState } from 'react';
import { MarkError, MarkWarning } from '@polkadot/react-components';
import { useApi, useCall } from '@polkadot/react-hooks';
import { useTranslation } from '../../translate.js';
interface Props {
accountId: string | null;
controllerId: string | null;
defaultController?: string;
onError: (error: string | null, isFatal: boolean) => void;
}
interface ErrorState {
error: string | null;
isFatal: boolean;
}
const OPT_BOND = {
transform: (value: Option<AccountId>): string | null =>
value.isSome
? value.unwrap().toString()
: null
};
const OPT_STASH = {
transform: (value: Option<PalletStakingStakingLedger>): string | null =>
value.isSome
? value.unwrap().stash.toString()
: null
};
function ValidateController ({ accountId, controllerId, defaultController, onError }: Props): React.ReactElement<Props> | null {
const { t } = useTranslation();
const { api } = useApi();
const bondedId = useCall<string | null>(controllerId ? api.query.staking.bonded : null, [controllerId], OPT_BOND);
const stashId = useCall<string | null>(controllerId ? api.query.staking.ledger : null, [controllerId], OPT_STASH);
const allBalances = useCall<DeriveBalancesAll>(controllerId ? api.derive.balances?.all : null, [controllerId]);
const [{ error, isFatal }, setError] = useState<ErrorState>({ error: null, isFatal: false });
useEffect((): void => {
// don't show an error if the selected controller is the default
// this applies when changing controller
if (defaultController !== controllerId) {
let newError: string | null = null;
let isFatal = false;
if (bondedId && (controllerId !== accountId)) {
isFatal = true;
newError = t('A controller account should not map to another stash. This selected controller is a stash, controlled by {{bondedId}}', { replace: { bondedId } });
} else if (stashId) {
isFatal = true;
newError = t('A controller account should not be set to manage multiple stashes. The selected controller is already controlling {{stashId}}', { replace: { stashId } });
} else if (allBalances?.freeBalance.isZero()) {
isFatal = true;
newError = t('The controller does not have sufficient funds available to cover transaction fees. Ensure that a funded controller is used.');
} else if (controllerId === accountId) {
newError = t('Distinct stash and controller accounts are recommended to ensure fund security. You will be allowed to make the transaction, but take care to not tie up all funds, only use a portion of the available funds during this period.');
}
onError(newError, isFatal);
setError((state) => state.error !== newError ? { error: newError, isFatal } : state);
}
}, [accountId, allBalances, bondedId, controllerId, defaultController, onError, stashId, t]);
if (!error || !accountId) {
return null;
}
return (
isFatal
? <MarkError content={error} />
: <MarkWarning content={error} />
);
}
export default React.memo(ValidateController);