40 lines
1.4 KiB
TypeScript
40 lines
1.4 KiB
TypeScript
// Copyright 2017-2023 @polkadot/app-parachains authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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import type { ParaId, SessionIndex } from '@polkadot/types/interfaces';
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import type { BN } from '@polkadot/util';
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import type { QueuedAction } from './types';
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import { useMemo } from 'react';
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import { createNamedHook, useApi, useCall } from '@polkadot/react-hooks';
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import { BN_EIGHT, BN_FIVE, BN_FOUR, BN_NINE, BN_ONE, BN_SEVEN, BN_SIX, BN_TEN, BN_THREE, BN_TWO } from '@polkadot/util';
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const INC = [BN_ONE, BN_TWO, BN_THREE, BN_FOUR, BN_FIVE, BN_SIX, BN_SEVEN, BN_EIGHT, BN_NINE, BN_TEN];
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const OPT_NEXT = {
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withParams: true
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};
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function useActionsQueueImpl (): QueuedAction[] {
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const { api } = useApi();
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const currentIndex = useCall<SessionIndex>(api.query.session.currentIndex);
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const queryIndexes = useMemo(() => currentIndex && INC.map((i) => currentIndex.add(i)), [currentIndex]);
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const nextActions = useCall<[[BN[]], ParaId[][]]>(queryIndexes && api.query.paras.actionsQueue.multi, [queryIndexes], OPT_NEXT);
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return useMemo(
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(): QueuedAction[] =>
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nextActions
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? nextActions[0][0]
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.map((sessionIndex, index) => ({
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paraIds: nextActions[1][index],
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sessionIndex
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}))
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.filter(({ paraIds }) => paraIds.length)
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: [],
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[nextActions]
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);
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}
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export default createNamedHook('useActionsQueue', useActionsQueueImpl);
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