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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 | 43x 43x 43x 43x 43x 43x 43x 122x 123x 128x 128x 128x 128x 128x 43x 122x 123x 127x 166x 1018x 409x 1018x 1018x 37x 87x 42x 32x 32x 32x 2716x 166x 1x 166x 44x 127x 105x 627x 627x 627x 19x 127x 1x 1x 119x 119x 119x 53x 8x | import { Cardano, UtxoProvider } from '@cardano-sdk/core';
import { Logger } from 'ts-log';
import { NEVER, Observable, combineLatest, concat, distinctUntilChanged, map, of, shareReplay, switchMap } from 'rxjs';
import { PersistentCollectionTrackerSubject, pollProvider, txInEquals, utxoEquals } from './util';
import { RetryBackoffConfig } from 'backoff-rxjs';
import { TxInFlight, UtxoTracker } from './types';
import { WalletStores } from '../persistence';
import { sortUtxoByTxIn } from '@cardano-sdk/input-selection';
import chunk from 'lodash/chunk.js';
import uniqWith from 'lodash/uniqWith.js';
// Temporarily hardcoded. Will be replaced with ChainHistoryProvider 'maxPageSize' value once ADP-2249 is implemented
const PAGE_SIZE = 25;
export interface UtxoTrackerProps {
utxoProvider: UtxoProvider;
addresses$: Observable<Cardano.PaymentAddress[]>;
stores: Pick<WalletStores, 'utxo' | 'unspendableUtxo'>;
transactionsInFlight$: Observable<TxInFlight[]>;
history$: Observable<Cardano.HydratedTx[]>;
retryBackoffConfig: RetryBackoffConfig;
logger: Logger;
}
export interface UtxoTrackerInternals {
utxoSource$?: PersistentCollectionTrackerSubject<Cardano.Utxo>;
unspendableUtxoSource$?: PersistentCollectionTrackerSubject<Cardano.Utxo>;
}
export const createUtxoProvider = (
utxoProvider: UtxoProvider,
addresses$: Observable<Cardano.PaymentAddress[]>,
history$: Observable<Cardano.HydratedTx[]>,
retryBackoffConfig: RetryBackoffConfig,
logger: Logger
) =>
addresses$.pipe(
switchMap((paymentAddresses) =>
pollProvider({
equals: utxoEquals,
logger,
retryBackoffConfig,
sample: async () => {
let utxos = new Array<Cardano.Utxo>();
const addressesSubGroups = chunk(paymentAddresses, PAGE_SIZE);
for (const addresses of addressesSubGroups) {
utxos = [...utxos, ...(await utxoProvider.utxoByAddresses({ addresses }))];
}
return utxos.sort(sortUtxoByTxIn);
},
trigger$: history$
})
)
);
export const createUtxoTracker = (
{ utxoProvider, addresses$, stores, transactionsInFlight$, retryBackoffConfig, history$, logger }: UtxoTrackerProps,
{
utxoSource$ = new PersistentCollectionTrackerSubject<Cardano.Utxo>(
() => createUtxoProvider(utxoProvider, addresses$, history$, retryBackoffConfig, logger),
stores.utxo
),
unspendableUtxoSource$ = new PersistentCollectionTrackerSubject(
(stored) => (stored.length > 0 ? NEVER : concat(of([]), NEVER)),
stores.unspendableUtxo
)
}: UtxoTrackerInternals = {}
): UtxoTracker => {
const total$ = combineLatest([utxoSource$, transactionsInFlight$, addresses$]).pipe(
map(([onChainUtxo, transactionsInFlight, ownAddresses]) => [
...onChainUtxo.filter(([utxoTxIn]) => {
const utxoIsUsedInFlight = transactionsInFlight.some(({ body: { inputs } }) =>
inputs.some((input) => input.txId === utxoTxIn.txId && input.index === utxoTxIn.index)
);
utxoIsUsedInFlight &&
logger.debug('OnChain UTXO is already used in in-flight transaction. Excluding from total$.', utxoTxIn);
return !utxoIsUsedInFlight;
}),
...transactionsInFlight.flatMap(({ body: { outputs }, id }, txInFlightIndex) =>
outputs
.filter(
({ address }, outputIndex) =>
ownAddresses.includes(address) &&
// not already consumed by another tx in flight
!transactionsInFlight.some(
({ body: { inputs } }, i) =>
txInFlightIndex !== i && inputs.some((txIn) => txIn.txId === id && txIn.index === outputIndex)
)
)
.map((txOut): Cardano.Utxo => {
const txIn: Cardano.HydratedTxIn = {
address: txOut.address, // not necessarily correct in multi-address wallet
index: outputs.indexOf(txOut),
txId: id
};
logger.debug('New UTXO available from in-flight transactions. Including in total$.', txIn);
return [txIn, txOut];
})
)
]),
map((utxo) => {
const uniqueUtxo = uniqWith(utxo, ([a], [b]) => a.txId === b.txId && a.index === b.index);
if (uniqueUtxo.length !== utxo.length) {
logger.debug('Found duplicate UTxO in', utxo);
}
return uniqueUtxo;
}),
distinctUntilChanged((previous, current) => utxoEquals(previous, current)),
shareReplay(1)
);
const available$ = combineLatest([total$, unspendableUtxoSource$]).pipe(
// filter to utxo that are not included in in-flight transactions or unspendable
map(([utxo, unspendableUtxo]) =>
utxo.filter(([utxoTxIn]) => {
const txInIsUnspendable = unspendableUtxo.some(([unspendable]) => txInEquals(utxoTxIn, unspendable));
txInIsUnspendable && logger.debug('Exclude unspendable UTXO from availble$', utxoTxIn);
return !txInIsUnspendable;
})
),
distinctUntilChanged((previous, current) => utxoEquals(previous, current)),
shareReplay(1)
);
return {
available$,
setUnspendable: async (utxo) => {
logger.debug('setUnspendable', utxo);
unspendableUtxoSource$.next(utxo);
},
shutdown: () => {
utxoSource$.complete();
unspendableUtxoSource$.complete();
logger.debug('Shutdown');
},
total$,
unspendable$: combineLatest([unspendableUtxoSource$, total$]).pipe(
map(([unspendableUtxo, utxo]) =>
unspendableUtxo.filter(([unspendable]) => utxo.some(([utxoTxIn]) => txInEquals(utxoTxIn, unspendable)))
),
distinctUntilChanged((previous, current) => utxoEquals(previous, current)),
shareReplay(1)
)
};
};
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