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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 | 42x 42x 42x 124x 42x 132x 132x 132x 2989x 16935x 2989x 397x 132x 1226x 121x 121x 132x 362x 389x 132x 389x 136x 261x 132x 122x 122x 122x 122x | 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 { TrackedRewardsProvider } from './TrackedRewardsProvider';
import { TrackedStakePoolProvider } from './TrackedStakePoolProvider';
import { TrackedUtxoProvider } from './TrackedUtxoProvider';
import { TrackedWalletNetworkInfoProvider } from './TrackedWalletNetworkInfoProvider';
import { TrackerSubject } from '@cardano-sdk/util-rxjs';
export interface ProviderStatusTrackerProps {
consideredOutOfSyncAfter: Milliseconds;
}
export interface ProviderStatusTrackerDependencies {
stakePoolProvider: TrackedStakePoolProvider;
networkInfoProvider: TrackedWalletNetworkInfoProvider;
assetProvider: TrackedAssetProvider;
utxoProvider: TrackedUtxoProvider;
chainHistoryProvider: TrackedChainHistoryProvider;
rewardsProvider: TrackedRewardsProvider;
logger: Logger;
}
const getDefaultProviderSyncRelevantStats = ({
stakePoolProvider,
networkInfoProvider,
assetProvider,
utxoProvider,
chainHistoryProvider,
rewardsProvider
}: ProviderStatusTrackerDependencies): Observable<ProviderFnStats[]> =>
combineLatest([
networkInfoProvider.stats.ledgerTip$,
networkInfoProvider.stats.protocolParameters$,
networkInfoProvider.stats.genesisParameters$,
networkInfoProvider.stats.eraSummaries$,
assetProvider.stats.getAsset$,
stakePoolProvider.stats.queryStakePools$,
utxoProvider.stats.utxoByAddresses$,
chainHistoryProvider.stats.transactionsByAddresses$,
rewardsProvider.stats.rewardsHistory$,
rewardsProvider.stats.rewardAccountBalance$
]);
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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