33 lines
1.1 KiB
TypeScript
33 lines
1.1 KiB
TypeScript
// Copyright 2017-2022 @polkadot/app-tech-comm authors & contributors
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
import type { CollectiveType } from './types';
|
|
|
|
import { useMemo } from 'react';
|
|
|
|
import { useApi } from '@polkadot/react-hooks';
|
|
import { isFunction } from '@polkadot/util';
|
|
|
|
import { createNamedHook } from './createNamedHook';
|
|
|
|
function useCollectiveInstanceImpl (instanceType: CollectiveType, instanceIndex?: number): CollectiveType | null {
|
|
const { api } = useApi();
|
|
|
|
return useMemo(
|
|
(): CollectiveType | null => {
|
|
const index = instanceIndex || 0;
|
|
const instances = api.registry.getModuleInstances(api.runtimeVersion.specName.toString(), instanceType);
|
|
const instance = instances && (index < instances.length)
|
|
? instances[index] as 'council'
|
|
: instanceType;
|
|
|
|
return api.tx[instance] && isFunction(api.tx[instance].close)
|
|
? instance
|
|
: null;
|
|
},
|
|
[api, instanceIndex, instanceType]
|
|
);
|
|
}
|
|
|
|
export const useCollectiveInstance = createNamedHook('useCollectiveInstance', useCollectiveInstanceImpl);
|