331fc4b9a2
* enhance: Add user preimages component and update preimage handling * refactor: user preimages handling and improve UI components * style: enhance table row styling in Preimage component * feat: unnote multiple preimages at once * chore: check if id is not undefined
44 lines
1.3 KiB
TypeScript
44 lines
1.3 KiB
TypeScript
// Copyright 2017-2025 @polkadot/react-hooks authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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import type { StorageKey, u32 } from '@polkadot/types';
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import type { EventRecord } from '@polkadot/types/interfaces';
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import type { Changes } from './useEventChanges.js';
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import { createNamedHook, useApi, useEventChanges, useMapKeys } from './index.js';
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const EMPTY_PARAMS: unknown[] = [];
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const OPT_KEY = {
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transform: (keys: StorageKey<[u32]>[]): u32[] =>
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keys.map(({ args: [id] }) => id).filter((id) => id !== undefined)
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};
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function filter (records: EventRecord[]): Changes<u32> {
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const added: u32[] = [];
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const removed: u32[] = [];
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records.forEach(({ event: { data: [id], method } }): void => {
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if (method === 'Created' || method === 'ForceCreated') {
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added.push(id as u32);
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} else {
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removed.push(id as u32);
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}
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});
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return { added, removed };
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}
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function useAssetIdsImpl (): u32[] | undefined {
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const { api } = useApi();
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const startValue = useMapKeys(api.query.assets?.asset, EMPTY_PARAMS, OPT_KEY) || [];
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return useEventChanges([
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api.events.assets?.Created,
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api.events.assets?.Destroyed,
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api.events.assets?.ForceCreated
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], filter, startValue);
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}
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export const useAssetIds = createNamedHook('useAssetIds', useAssetIdsImpl);
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