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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | 42x 42x 42x 125x 42x 133x 133x 133x 2910x 16033x 2910x 479x 133x 1138x 124x 124x 133x 380x 471x 133x 471x 232x 269x 133x 121x 121x 121x 121x | import {
EMPTY,
Observable,
combineLatest,
concat,
debounce,
debounceTime,
distinctUntilChanged,
filter,
interval,
map,
mergeMap,
of,
share,
skipWhile,
switchMap,
take,
tap,
timer
} from 'rxjs';
import { Logger } from 'ts-log';
import { Milliseconds } from '../types';
import { ProviderFnStats } from './ProviderTracker';
import { TrackedAssetProvider } from './TrackedAssetProvider';
import { TrackedChainHistoryProvider } from './TrackedChainHistoryProvider';
import { TrackedRewardAccountInfoProvider } from './TrackedRewardAccountInfoProvider';
import { TrackedRewardsProvider } from './TrackedRewardsProvider';
import { TrackedUtxoProvider } from './TrackedUtxoProvider';
import { TrackedWalletNetworkInfoProvider } from './TrackedWalletNetworkInfoProvider';
import { TrackerSubject } from '@cardano-sdk/util-rxjs';
export interface ProviderStatusTrackerProps {
consideredOutOfSyncAfter: Milliseconds;
}
export interface ProviderStatusTrackerDependencies {
networkInfoProvider: TrackedWalletNetworkInfoProvider;
assetProvider: TrackedAssetProvider;
utxoProvider: TrackedUtxoProvider;
chainHistoryProvider: TrackedChainHistoryProvider;
rewardsProvider: TrackedRewardsProvider;
rewardAccountInfoProvider: TrackedRewardAccountInfoProvider;
logger: Logger;
}
const getDefaultProviderSyncRelevantStats = ({
networkInfoProvider,
assetProvider,
utxoProvider,
chainHistoryProvider,
rewardAccountInfoProvider,
rewardsProvider
}: ProviderStatusTrackerDependencies): Observable<ProviderFnStats[]> =>
combineLatest([
networkInfoProvider.stats.ledgerTip$,
networkInfoProvider.stats.protocolParameters$,
networkInfoProvider.stats.genesisParameters$,
networkInfoProvider.stats.eraSummaries$,
assetProvider.stats.getAsset$,
utxoProvider.stats.utxoByAddresses$,
chainHistoryProvider.stats.transactionsByAddresses$,
rewardsProvider.stats.rewardsHistory$,
rewardAccountInfoProvider.stats.rewardAccountInfo$
]);
export interface ProviderStatusTrackerInternals {
/**
* @returns Observable of Provider stats that are considered
* when determining Wallet sync status
*/
getProviderSyncRelevantStats?: typeof getDefaultProviderSyncRelevantStats;
}
export const createProviderStatusTracker = (
dependencies: ProviderStatusTrackerDependencies,
{ consideredOutOfSyncAfter }: ProviderStatusTrackerProps,
{ getProviderSyncRelevantStats = getDefaultProviderSyncRelevantStats }: ProviderStatusTrackerInternals = {}
) => {
const logger = dependencies.logger;
const relevantStats$ = getProviderSyncRelevantStats(dependencies).pipe(share());
const isAnyRequestPending$ = new TrackerSubject<boolean>(
relevantStats$.pipe(
map((allStats) =>
allStats.some(
({ numCalls, numFailures, numResponses, didLastRequestFail }) =>
didLastRequestFail || numCalls > numResponses + numFailures
)
),
// do not debounce if there are pending requests; in case of many requests, it will be debounced
// for a long time, leaving the previous status unchanged
debounce((isReqPending) => (isReqPending ? of(true) : interval(1))),
distinctUntilChanged(),
tap((isReqPending) => logger.debug(`${isReqPending ? 'Some' : 'No'} requests are pending`))
)
);
const statsReady$ = relevantStats$.pipe(
debounceTime(1),
skipWhile((allStats) => allStats.some(({ initialized }) => !initialized)),
take(1),
tap(() => logger.debug('All stats are initialized')),
mergeMap(() => EMPTY)
);
const isSettled$ = new TrackerSubject<boolean>(
concat(of(false), statsReady$, isAnyRequestPending$.pipe(map((pending) => !pending))).pipe(
distinctUntilChanged(),
tap((isSettled) => logger.debug('isSettled', isSettled))
)
);
const isUpToDate$ = new TrackerSubject<boolean>(
concat(
of(false),
isSettled$.pipe(
filter((isSettled) => isSettled),
switchMap(() => concat(of(true), timer(consideredOutOfSyncAfter).pipe(map(() => false)))),
distinctUntilChanged()
)
).pipe(tap((isUpToDate) => logger.debug('isUpToDate', isUpToDate)))
);
return {
isAnyRequestPending$,
isSettled$,
isUpToDate$,
shutdown() {
isAnyRequestPending$.complete();
isSettled$.complete();
isUpToDate$.complete();
logger.debug('Shutdown');
}
};
};
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