packages/api-derive/src/staking/stakerSlashes.ts
// Copyright 2017-2024 @polkadot/api-derive authors & contributors
// SPDX-License-Identifier: Apache-2.0
import type { Observable } from 'rxjs';
import type { EraIndex } from '@polkadot/types/interfaces';
import type { DeriveApi, DeriveStakerSlashes } from '../types.js';
import { map } from 'rxjs';
import { memo } from '../util/index.js';
import { erasHistoricApplyAccount } from './util.js';
export function _stakerSlashes (instanceId: string, api: DeriveApi): (accountId: Uint8Array | string, eras: EraIndex[], withActive: boolean) => Observable<DeriveStakerSlashes[]> {
return memo(instanceId, (accountId: Uint8Array | string, eras: EraIndex[], withActive: boolean): Observable<DeriveStakerSlashes[]> => {
const stakerId = api.registry.createType('AccountId', accountId).toString();
return api.derive.staking._erasSlashes(eras, withActive).pipe(
map((slashes): DeriveStakerSlashes[] =>
slashes.map(({ era, nominators, validators }): DeriveStakerSlashes => ({
era,
total: nominators[stakerId] || validators[stakerId] || api.registry.createType('Balance')
}))
)
);
});
}
export const stakerSlashes = /*#__PURE__*/ erasHistoricApplyAccount('_stakerSlashes');