mirror of
https://github.com/pezkuwichain/pezkuwi-api.git
synced 2026-11-13 18:07:10 +00:00
Satoshi Qazi Muhammed
5835a5383c
- @pezkuwi/dev, dev-test, dev-ts ^0.86.3; disable directives renamed for the new rule names, or removed where the rule no longer reports - rethrown errors carry the original as `cause` (13 sites) - optional chains where a guard expression tested the same value - Init: the registry cache settles with the creator's own promise, dropping the entry in finally(), instead of re-wrapping it - Combinator: a typed call instead of `Function` - checkTypes.manual: synchronous checks run outside Promise.all - sortValues, createTypeUnsafe: initial values that were never read - typegen util: load docs.js for its side effect (it registers the `docs` Handlebars partial) now that its types are re-exported type-only - MockProvider keeps its Header assertion: the package's own build does not load api-augment, so createType returns a plain Codec there - Decorate keeps `delete queue[i]`: the hole marks a fired queue and later indexes must not shift
66 lines
2.1 KiB
TypeScript
66 lines
2.1 KiB
TypeScript
// Copyright 2017-2026 @pezkuwi/api-derive authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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import type { Observable } from 'rxjs';
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import type { Option, u32 } from '@pezkuwi/types';
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import type { AccountId } from '@pezkuwi/types/interfaces';
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import type { Codec } from '@pezkuwi/types/types';
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import type { DeriveApi, DeriveHeartbeats } from '../types.js';
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import { combineLatest, map, of, switchMap } from 'rxjs';
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import { BN_ZERO } from '@pezkuwi/util';
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import { memo } from '../util/index.js';
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type Result = [DeriveHeartbeats, AccountId[], Option<Codec>[], u32[]];
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function mapResult ([result, validators, heartbeats, numBlocks]: Result): DeriveHeartbeats {
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validators.forEach((validator, index): void => {
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const validatorId = validator.toString();
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const blockCount = numBlocks[index];
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const hasMessage = !heartbeats[index].isEmpty;
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const prev = result[validatorId];
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if (prev?.hasMessage !== hasMessage || !prev.blockCount.eq(blockCount)) {
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result[validatorId] = {
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blockCount,
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hasMessage,
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isOnline: hasMessage || blockCount.gt(BN_ZERO)
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};
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}
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});
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return result;
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}
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/**
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* @name receivedHeartbeats
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* @description Return a boolean array indicating whether the passed accounts had received heartbeats in the current session.
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* @example
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* ```javascript
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* let unsub = await api.derive.imOnline.receivedHeartbeats((heartbeat) => {
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* console.log(heartbeat);
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* });
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* ```
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*/
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export function receivedHeartbeats (instanceId: string, api: DeriveApi): () => Observable<DeriveHeartbeats> {
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return memo(instanceId, (): Observable<DeriveHeartbeats> =>
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api.query.imOnline?.receivedHeartbeats
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? api.derive.staking.overview().pipe(
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switchMap(({ currentIndex, validators }): Observable<Result> =>
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combineLatest([
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of({}),
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of(validators),
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api.query.imOnline.receivedHeartbeats.multi(
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validators.map((_address, index) => [currentIndex, index])),
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api.query.imOnline.authoredBlocks.multi(
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validators.map((address) => [currentIndex, address]))
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])
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),
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map(mapResult)
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)
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: of({})
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);
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}
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