@okxweb3/coin-bitcoin
Version:
@okxweb3/coin-bitcoin is a Bitcoin SDK for building Web3 wallets and applications. It supports BTC, BSV, DOGE, LTC, and TBTC, enabling private key management, transaction signing, address generation, and inscriptions like BRC-20, Runes, CAT, and Atomicals
61 lines • 2.62 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.combine = void 0;
const parser_1 = require("../parser");
function combine(psbts) {
const self = psbts[0];
const selfKeyVals = (0, parser_1.psbtToKeyVals)(self);
const others = psbts.slice(1);
if (others.length === 0)
throw new Error('Combine: Nothing to combine');
const selfTx = getTx(self);
if (selfTx === undefined) {
throw new Error('Combine: Self missing transaction');
}
const selfGlobalSet = getKeySet(selfKeyVals.globalKeyVals);
const selfInputSets = selfKeyVals.inputKeyVals.map(getKeySet);
const selfOutputSets = selfKeyVals.outputKeyVals.map(getKeySet);
for (const other of others) {
const otherTx = getTx(other);
if (otherTx === undefined ||
!otherTx.toBuffer().equals(selfTx.toBuffer())) {
throw new Error('Combine: One of the Psbts does not have the same transaction.');
}
const otherKeyVals = (0, parser_1.psbtToKeyVals)(other);
const otherGlobalSet = getKeySet(otherKeyVals.globalKeyVals);
otherGlobalSet.forEach(keyPusher(selfGlobalSet, selfKeyVals.globalKeyVals, otherKeyVals.globalKeyVals));
const otherInputSets = otherKeyVals.inputKeyVals.map(getKeySet);
otherInputSets.forEach((inputSet, idx) => inputSet.forEach(keyPusher(selfInputSets[idx], selfKeyVals.inputKeyVals[idx], otherKeyVals.inputKeyVals[idx])));
const otherOutputSets = otherKeyVals.outputKeyVals.map(getKeySet);
otherOutputSets.forEach((outputSet, idx) => outputSet.forEach(keyPusher(selfOutputSets[idx], selfKeyVals.outputKeyVals[idx], otherKeyVals.outputKeyVals[idx])));
}
return (0, parser_1.psbtFromKeyVals)(selfTx, {
globalMapKeyVals: selfKeyVals.globalKeyVals,
inputKeyVals: selfKeyVals.inputKeyVals,
outputKeyVals: selfKeyVals.outputKeyVals,
});
}
exports.combine = combine;
function keyPusher(selfSet, selfKeyVals, otherKeyVals) {
return (key) => {
if (selfSet.has(key))
return;
const newKv = otherKeyVals.filter(kv => kv.key.toString('hex') === key)[0];
selfKeyVals.push(newKv);
selfSet.add(key);
};
}
function getTx(psbt) {
return psbt.globalMap.unsignedTx;
}
function getKeySet(keyVals) {
const set = new Set();
keyVals.forEach(keyVal => {
const hex = keyVal.key.toString('hex');
if (set.has(hex))
throw new Error('Combine: KeyValue Map keys should be unique');
set.add(hex);
});
return set;
}
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