Jaco Greeff
9f5be747e7
* Bump deps * Align with published common * Fix rxjs to 6.4.0 (false deprecations on 6.5.1)
45 lines
1.6 KiB
TypeScript
45 lines
1.6 KiB
TypeScript
// Copyright 2017-2019 @polkadot/api-derive authors & contributors
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// This software may be modified and distributed under the terms
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// of the Apache-2.0 license. See the LICENSE file for details.
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import { combineLatest, of, Observable } from 'rxjs';
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import { map, switchMap } from 'rxjs/operators';
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import { ApiInterface$Rx } from '@plugnet/api/types';
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import { AccountId, AccountIndex, Address, Balance } from '@plugnet/types';
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import { idAndIndex } from '../accounts/idAndIndex';
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import { DerivedBalances } from '../types';
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import { drr } from '../util/drr';
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const EMPTY_ACCOUNT = new AccountId(new Uint8Array(32));
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export function votingBalance (api: ApiInterface$Rx) {
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return (address: AccountIndex | AccountId | Address | string): Observable<DerivedBalances> => {
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return idAndIndex(api)(address).pipe(
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switchMap(([accountId]) =>
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(accountId
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? combineLatest([
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of(accountId),
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api.query.balances.freeBalance(accountId),
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api.query.balances.reservedBalance(accountId)
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])
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: of([undefined, undefined, undefined])
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) as Observable<[AccountId?, Balance?, Balance?]>
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),
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map(([accountId = EMPTY_ACCOUNT, freeBalance = new Balance(0), reservedBalance = new Balance(0)]) => {
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return {
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accountId,
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freeBalance,
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nominatedBalance: new Balance(0),
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reservedBalance,
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stakingBalance: new Balance(0),
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votingBalance: new Balance(
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freeBalance.add(reservedBalance)
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)
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};
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}),
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drr()
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);
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};
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}
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