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@fivebinaries/coin-selection

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@fivebinaries/coin-selection - npm Package Compare versions

Comparing version 2.0.0-beta.3 to 2.0.0-beta.4

1

lib/constants/index.d.ts
import * as CardanoWasm from '@emurgo/cardano-serialization-lib-browser';
export declare const dummyAddress = "addr_test1qz2fxv2umyhttkxyxp8x0dlpdt3k6cwng5pxj3jhsydzer3jcu5d8ps7zex2k2xt3uqxgjqnnj83ws8lhrn648jjxtwq2ytjqp";
export declare const CertificateType: {

@@ -4,0 +3,0 @@ readonly STAKE_REGISTRATION: 0;

1

lib/constants/index.js
import * as CardanoWasm from '@emurgo/cardano-serialization-lib-browser';
import { NetworkInfo } from '@emurgo/cardano-serialization-lib-browser';
export const dummyAddress = 'addr_test1qz2fxv2umyhttkxyxp8x0dlpdt3k6cwng5pxj3jhsydzer3jcu5d8ps7zex2k2xt3uqxgjqnnj83ws8lhrn648jjxtwq2ytjqp';
export const CertificateType = {

@@ -5,0 +4,0 @@ STAKE_REGISTRATION: 0,

12

lib/methods/largestFirst.js

@@ -30,3 +30,3 @@ import { ERROR } from '../constants';

}
const preparedOutputs = setMinUtxoValueForOutputs(txBuilder, outputs);
const preparedOutputs = setMinUtxoValueForOutputs(txBuilder, outputs, changeAddress);
const addUtxoToSelection = (utxo) => {

@@ -47,3 +47,3 @@ const { input, address, amount } = buildTxInput(utxo);

// Calculate fee and minUtxoValue for all external outputs
const outputsCost = preparedOutputs.map(output => getOutputCost(txBuilder, output));
const outputsCost = preparedOutputs.map(output => getOutputCost(txBuilder, output, changeAddress));
const totalOutputsFee = outputsCost.reduce((acc, output) => (acc = acc.checked_add(output.outputFee)), bigNumFromStr('0'));

@@ -59,5 +59,3 @@ // add external outputs fees to total

// reset previously computed maxOutput in order to correctly calculate a potential change output
preparedOutputs[maxOutputIndex] = setMinUtxoValueForOutputs(txBuilder, [
maxOutput,
])[0];
preparedOutputs[maxOutputIndex] = setMinUtxoValueForOutputs(txBuilder, [maxOutput], changeAddress)[0];
}

@@ -137,3 +135,3 @@ // Calculate change output

preparedOutputs.forEach(output => {
const txOutput = buildTxOutput(output);
const txOutput = buildTxOutput(output, changeAddress);
txBuilder.add_output(txOutput);

@@ -145,3 +143,3 @@ });

finalOutputs.push(change);
txBuilder.add_output(buildTxOutput(change));
txBuilder.add_output(buildTxOutput(change, changeAddress));
});

@@ -148,0 +146,0 @@ }

10

lib/methods/randomImprove.js

@@ -33,8 +33,8 @@ import { ERROR } from '../constants';

};
const selection = (utxos, outputs, txBuilder) => {
const selection = (utxos, outputs, txBuilder, dummyAddress) => {
const utxoSelected = [];
const utxoRemaining = JSON.parse(JSON.stringify(utxos));
const preparedOutputs = setMinUtxoValueForOutputs(txBuilder, outputs);
const preparedOutputs = setMinUtxoValueForOutputs(txBuilder, outputs, dummyAddress);
preparedOutputs.forEach(output => {
const txOutput = buildTxOutput(output);
const txOutput = buildTxOutput(output, dummyAddress);
txBuilder.add_output(txOutput);

@@ -122,3 +122,3 @@ });

const txBuilder = getTxBuilder((_a = options === null || options === void 0 ? void 0 : options.feeParams) === null || _a === void 0 ? void 0 : _a.a);
const { utxoSelected, utxoRemaining, preparedOutputs } = selection(utxos, outputs, txBuilder);
const { utxoSelected, utxoRemaining, preparedOutputs } = selection(utxos, outputs, txBuilder, changeAddress);
// compute change and adjust for fee

@@ -135,3 +135,3 @@ const { changeOutputs } = calculateChange(utxoSelected, utxoRemaining, preparedOutputs, changeAddress, options === null || options === void 0 ? void 0 : options._maxTokensPerOutput, txBuilder);

finalOutputs.push(ch);
txBuilder.add_output(buildTxOutput(ch));
txBuilder.add_output(buildTxOutput(ch, changeAddress));
});

@@ -138,0 +138,0 @@ const totalUserOutputsAmount = getUserOutputQuantityWithDeposit(preparedOutputs, 0);

6

lib/utils/common.d.ts

@@ -23,8 +23,8 @@ import * as CardanoWasm from '@emurgo/cardano-serialization-lib-browser';

};
export declare const buildTxOutput: (output: Output) => CardanoWasm.TransactionOutput;
export declare const getOutputCost: (txBuilder: CardanoWasm.TransactionBuilder, output: Output) => OutputCost;
export declare const buildTxOutput: (output: Output, dummyAddress: string) => CardanoWasm.TransactionOutput;
export declare const getOutputCost: (txBuilder: CardanoWasm.TransactionBuilder, output: Output, dummyAddress: string) => OutputCost;
export declare const prepareWithdrawals: (withdrawals: Withdrawal[]) => CardanoWasm.Withdrawals;
export declare const prepareCertificates: (certificates: Certificate[], accountKey: CardanoWasm.Bip32PublicKey) => CardanoWasm.Certificates;
export declare const calculateRequiredDeposit: (certificates: Certificate[]) => number;
export declare const setMinUtxoValueForOutputs: (txBuilder: CardanoWasm.TransactionBuilder, outputs: UserOutput[]) => UserOutput[];
export declare const setMinUtxoValueForOutputs: (txBuilder: CardanoWasm.TransactionBuilder, outputs: UserOutput[], dummyAddress: string) => UserOutput[];
export declare const splitChangeOutput: (txBuilder: CardanoWasm.TransactionBuilder, singleChangeOutput: OutputCost, changeAddress: string, maxTokensPerOutput?: number) => OutputCost[];

@@ -31,0 +31,0 @@ export declare const prepareChangeOutput: (txBuilder: CardanoWasm.TransactionBuilder, usedUtxos: Utxo[], preparedOutputs: Output[], changeAddress: string, utxosTotalAmount: CardanoWasm.BigNum, totalOutputAmount: CardanoWasm.BigNum, totalFeesAmount: CardanoWasm.BigNum, pickAdditionalUtxo?: (() => ReturnType<typeof getRandomUtxo>) | undefined) => OutputCost | null;

28

lib/utils/common.js
import * as CardanoWasm from '@emurgo/cardano-serialization-lib-browser';
import { CARDANO_PARAMS, CertificateType, dummyAddress, ERROR, MAX_TOKENS_PER_OUTPUT, MIN_UTXO_VALUE, } from '../constants';
import { CARDANO_PARAMS, CertificateType, ERROR, MAX_TOKENS_PER_OUTPUT, MIN_UTXO_VALUE, } from '../constants';
import { CoinSelectionError } from './errors';

@@ -91,3 +91,3 @@ export const bigNumFromStr = (num) => CardanoWasm.BigNum.from_str(num);

};
export const buildTxOutput = (output) => {
export const buildTxOutput = (output, dummyAddress) => {
var _a;

@@ -107,9 +107,13 @@ // this will set required minUtxoValue even if output.amount === 0

}
const outputAddr = CardanoWasm.Address.from_bech32((_a = output.address) !== null && _a !== void 0 ? _a : dummyAddress); // TODO: compatibility with byron
// If output.address was not defined fallback to bech32 address (useful for "precompose" tx
// which doesn't have all necessary data, but we can fill in the blanks and return some info such as fee)
const outputAddr = output.address && CardanoWasm.ByronAddress.is_valid(output.address)
? CardanoWasm.ByronAddress.from_base58(output.address).to_address()
: CardanoWasm.Address.from_bech32((_a = output.address) !== null && _a !== void 0 ? _a : dummyAddress);
const txOutput = CardanoWasm.TransactionOutput.new(outputAddr, outputValue);
return txOutput;
};
export const getOutputCost = (txBuilder, output) => {
export const getOutputCost = (txBuilder, output, dummyAddress) => {
const coinsPerUtxoWord = bigNumFromStr(CARDANO_PARAMS.COINS_PER_UTXO_WORD);
const txOutput = buildTxOutput(output);
const txOutput = buildTxOutput(output, dummyAddress);
const outputFee = txBuilder.fee_for_output(txOutput);

@@ -164,6 +168,6 @@ const minAda = CardanoWasm.min_ada_required(txOutput.amount(), false, coinsPerUtxoWord);

};
export const setMinUtxoValueForOutputs = (txBuilder, outputs) => {
export const setMinUtxoValueForOutputs = (txBuilder, outputs, dummyAddress) => {
const preparedOutputs = outputs.map(output => {
// sets minimal output ADA amount in case of multi-asset output
const { minOutputAmount } = getOutputCost(txBuilder, output);
const { minOutputAmount } = getOutputCost(txBuilder, output, dummyAddress);
const outputAmount = bigNumFromStr(output.amount || '0');

@@ -228,3 +232,3 @@ let amount;

const changeOutputsCost = changeOutputs.map((partialChange, i) => {
let changeOutputCost = getOutputCost(txBuilder, partialChange);
let changeOutputCost = getOutputCost(txBuilder, partialChange, changeAddress);
lovelaceAvailable = lovelaceAvailable.clamped_sub(bigNumFromStr(partialChange.amount).checked_add(changeOutputCost.outputFee));

@@ -240,3 +244,3 @@ if (i === changeOutputs.length - 1) {

partialChange.amount = changeOutputAmount.to_str();
changeOutputCost = getOutputCost(txBuilder, partialChange);
changeOutputCost = getOutputCost(txBuilder, partialChange, changeAddress);
}

@@ -274,3 +278,3 @@ return changeOutputCost;

assets: changeOutputAssets,
});
}, changeAddress);
// calculate change output amount as utxosTotalAmount - totalFeesAmount - change output fee

@@ -310,3 +314,3 @@ const totalSpent = totalOutputAmount

assets: changeOutputAssets,
});
}, changeAddress);
// WARNING: It returns a change output also in a case where we don't have enough utxos to cover the output cost, but the change output is needed because it contains additional assets

@@ -415,3 +419,3 @@ return {

assets: changeOutputAssets,
});
}, changeOutput.output.address().to_bech32());
changeOutput = Object.assign(Object.assign({}, changeOutput), { output: newChangeOutput });

@@ -418,0 +422,0 @@ }

2

lib/utils/trezor/transformations.d.ts

@@ -10,3 +10,3 @@ import { CardanoAddressParameters, CardanoInput, CardanoOutput } from '../../types/trezor';

tokenAmounts: AssetInPolicy[];
}[];
}[] | undefined;
export declare const transformToTrezorInputs: (utxos: Utxo[], trezorUtxos: {

@@ -13,0 +13,0 @@ txid: string;

2

lib/utils/trezor/transformations.js
import { parseAsset } from '../common';
export const transformToTokenBundle = (assets) => {
// prepare token bundle used in trezor output
if (assets.length === 0)
return undefined;
const uniquePolicies = [];

@@ -5,0 +7,0 @@ assets.forEach(asset => {

2

package.json
{
"name": "@fivebinaries/coin-selection",
"version": "2.0.0-beta.3",
"version": "2.0.0-beta.4",
"description": "",

@@ -5,0 +5,0 @@ "keywords": [

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