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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@polkadot/api-derive/staking

Просмотр файла: ownExposure.js

import { combineLatest, map, of } from 'rxjs';
import { firstMemo, memo } from '../util/index.js';
import { erasHistoricApplyAccount } from './util.js';
export function _ownExposures(instanceId, api) {
    return memo(instanceId, (accountId, eras, _withActive, page) => {
        const emptyStakingExposure = api.registry.createType('Exposure');
        // The reason we don't explicitly make the actual types is for compatibility. If the chain doesn't have the noted type it will fail
        // on construction. Therefore we just make an empty option.
        const emptyOptionPage = api.registry.createType('Option<Null>');
        const emptyOptionMeta = api.registry.createType('Option<Null>');
        return eras.length
            ? combineLatest([
                // Backwards and forward compat for historical integrity when using `erasHistoricApplyAccount`
                api.query.staking.erasStakersClipped
                    ? combineLatest(eras.map((e) => api.query.staking.erasStakersClipped(e, accountId)))
                    : of(eras.map((_) => emptyStakingExposure)),
                api.query.staking.erasStakers
                    ? combineLatest(eras.map((e) => api.query.staking.erasStakers(e, accountId)))
                    : of(eras.map((_) => emptyStakingExposure)),
                api.query.staking.erasStakersPaged
                    ? combineLatest(eras.map((e) => api.query.staking.erasStakersPaged(e, accountId, page)))
                    : of(eras.map((_) => emptyOptionPage)),
                api.query.staking.erasStakersOverview
                    ? combineLatest(eras.map((e) => api.query.staking.erasStakersOverview(e, accountId)))
                    : of(eras.map((_) => emptyOptionMeta))
            ]).pipe(map(([clp, exp, paged, expMeta]) => eras.map((era, index) => ({ clipped: clp[index], era, exposure: exp[index], exposureMeta: expMeta[index], exposurePaged: paged[index] }))))
            : of([]);
    });
}
export const ownExposure = /*#__PURE__*/ firstMemo((api, accountId, era, page) => api.derive.staking._ownExposures(accountId, [era], true, page || 0));
export const ownExposures = /*#__PURE__*/ erasHistoricApplyAccount('_ownExposures');

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