@bitgo-beta/utxo-ord
Version:
Utilities for building ordinals with BitGo utxo-lib
82 lines • 15.1 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.createPsbtForSingleInscriptionPassingTransaction = exports.findOutputLayoutForWalletUnspents = exports.createPsbtFromOutputLayout = void 0;
const utxo_lib_1 = require("@bitgo-beta/utxo-lib");
const unspents_1 = require("@bitgo-beta/unspents");
const index_1 = require("./index");
function createPsbtFromOutputLayout(network, inputBuilder, unspents, outputs, outputLayout) {
const psbt = utxo_lib_1.bitgo.createPsbtForNetwork({ network: network });
if (unspents.length !== 1) {
throw new Error(`multiple unspents not supported yet`);
}
unspents.forEach((u) => utxo_lib_1.bitgo.addWalletUnspentToPsbt(psbt, u, inputBuilder.walletKeys, inputBuilder.signer, inputBuilder.cosigner, psbt.network));
const [input] = unspents;
const ordOutputs = index_1.getOrdOutputsForLayout(new index_1.OrdOutput(input.value), outputLayout);
index_1.toArray(ordOutputs).forEach((ordOutput) => {
if (ordOutput === null) {
return;
}
switch (ordOutput) {
// skip padding outputs and fee output (virtual)
case null:
case ordOutputs.feeOutput:
return;
// add padding outputs
case ordOutputs.firstChangeOutput:
case ordOutputs.secondChangeOutput:
const { chain, index } = ordOutput === ordOutputs.firstChangeOutput ? outputs.changeOutputs[0] : outputs.changeOutputs[1];
utxo_lib_1.bitgo.addWalletOutputToPsbt(psbt, inputBuilder.walletKeys, chain, index, ordOutput.value);
break;
// add actual inscription output
case ordOutputs.inscriptionOutput:
let { inscriptionRecipient } = outputs;
if (typeof inscriptionRecipient === 'string') {
inscriptionRecipient = utxo_lib_1.address.toOutputScript(inscriptionRecipient, network);
}
psbt.addOutput({
script: inscriptionRecipient,
value: ordOutput.value,
});
break;
}
});
return psbt;
}
exports.createPsbtFromOutputLayout = createPsbtFromOutputLayout;
function toSatRange(p) {
const { offset } = index_1.parseSatPoint(p);
return new index_1.SatRange(offset, offset);
}
function getFee(vsize, rateSatPerKB) {
return BigInt(Math.ceil((vsize * rateSatPerKB) / 1000));
}
function findOutputLayoutForWalletUnspents(inputs, satPoint, outputs, constraints) {
if (inputs.length !== 1) {
throw new Error(`only single input supported currently`);
}
if (outputs.changeOutputs[0].chain !== outputs.changeOutputs[1].chain) {
// otherwise our fee calc is too complicated
throw new Error(`wallet outputs must be on same chain`);
}
const { minChangeOutput = BigInt(10000), maxChangeOutput = index_1.Constraint.MAXSAT, minInscriptionOutput = BigInt(10000), maxInscriptionOutput = BigInt(20000), } = constraints;
const [input] = inputs;
const inscriptionOutput = new index_1.OrdOutput(input.value, [toSatRange(satPoint)]);
return index_1.findOutputLayout(inscriptionOutput, {
minChangeOutput,
maxChangeOutput,
minInscriptionOutput,
maxInscriptionOutput,
feeFixed: getFee(unspents_1.VirtualSizes.txSegOverheadVSize + unspents_1.Dimensions.fromUnspents(inputs).getInputsVSize(), constraints.feeRateSatKB),
feePerOutput: getFee(unspents_1.Dimensions.fromOutputOnChain(outputs.changeOutputs[0].chain).getOutputsVSize(), constraints.feeRateSatKB),
});
}
exports.findOutputLayoutForWalletUnspents = findOutputLayoutForWalletUnspents;
function createPsbtForSingleInscriptionPassingTransaction(network, inputBuilder, unspents, satPoint, outputs, constraints) {
const layout = findOutputLayoutForWalletUnspents(unspents, satPoint, outputs, constraints);
if (!layout) {
throw new Error(`could not output layout for inscription passing transaction`);
}
return createPsbtFromOutputLayout(network, inputBuilder, unspents, outputs, layout);
}
exports.createPsbtForSingleInscriptionPassingTransaction = createPsbtForSingleInscriptionPassingTransaction;
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{ Network, bitgo, address } from '@bitgo-beta/utxo-lib';\nimport { Dimensions, VirtualSizes } from '@bitgo-beta/unspents';\n\nimport {\n  getOrdOutputsForLayout,\n  OrdOutput,\n  OutputLayout,\n  toArray,\n  SatPoint,\n  findOutputLayout,\n  Constraint,\n  parseSatPoint,\n  SatRange,\n} from './index';\n\nexport type WalletOutputPath = {\n  chain: bitgo.ChainCode;\n  index: number;\n};\n\nexport type WalletInputBuilder = {\n  walletKeys: bitgo.RootWalletKeys;\n  signer: bitgo.KeyName;\n  cosigner: bitgo.KeyName;\n};\n\nexport type InscriptionOutputs = {\n  inscriptionRecipient: string | Buffer;\n  changeOutputs: [WalletOutputPath, WalletOutputPath];\n};\n\nexport type InscriptionTransactionConstraints = {\n  feeRateSatKB: number;\n  minChangeOutput?: bigint;\n  maxChangeOutput?: bigint;\n  minInscriptionOutput?: bigint;\n  maxInscriptionOutput?: bigint;\n};\n\nexport function createPsbtFromOutputLayout(\n  network: Network,\n  inputBuilder: WalletInputBuilder,\n  unspents: bitgo.WalletUnspent<bigint>[],\n  outputs: InscriptionOutputs,\n  outputLayout: OutputLayout\n): bitgo.UtxoPsbt {\n  const psbt = bitgo.createPsbtForNetwork({ network: network });\n  if (unspents.length !== 1) {\n    throw new Error(`multiple unspents not supported yet`);\n  }\n  unspents.forEach((u) =>\n    bitgo.addWalletUnspentToPsbt(\n      psbt,\n      u,\n      inputBuilder.walletKeys,\n      inputBuilder.signer,\n      inputBuilder.cosigner,\n      psbt.network\n    )\n  );\n  const [input] = unspents;\n  const ordOutputs = getOrdOutputsForLayout(new OrdOutput(input.value), outputLayout);\n  toArray(ordOutputs).forEach((ordOutput) => {\n    if (ordOutput === null) {\n      return;\n    }\n    switch (ordOutput) {\n      // skip padding outputs and fee output (virtual)\n      case null:\n      case ordOutputs.feeOutput:\n        return;\n      // add padding outputs\n      case ordOutputs.firstChangeOutput:\n      case ordOutputs.secondChangeOutput:\n        const { chain, index } =\n          ordOutput === ordOutputs.firstChangeOutput ? outputs.changeOutputs[0] : outputs.changeOutputs[1];\n        bitgo.addWalletOutputToPsbt(psbt, inputBuilder.walletKeys, chain, index, ordOutput.value);\n        break;\n      // add actual inscription output\n      case ordOutputs.inscriptionOutput:\n        let { inscriptionRecipient } = outputs;\n        if (typeof inscriptionRecipient === 'string') {\n          inscriptionRecipient = address.toOutputScript(inscriptionRecipient, network);\n        }\n        psbt.addOutput({\n          script: inscriptionRecipient,\n          value: ordOutput.value,\n        });\n        break;\n    }\n  });\n  return psbt;\n}\n\nfunction toSatRange(p: SatPoint) {\n  const { offset } = parseSatPoint(p);\n  return new SatRange(offset, offset);\n}\n\nfunction getFee(vsize: number, rateSatPerKB: number): bigint {\n  return BigInt(Math.ceil((vsize * rateSatPerKB) / 1000));\n}\n\nexport function findOutputLayoutForWalletUnspents(\n  inputs: bitgo.WalletUnspent<bigint>[],\n  satPoint: SatPoint,\n  outputs: InscriptionOutputs,\n  constraints: InscriptionTransactionConstraints\n): OutputLayout | undefined {\n  if (inputs.length !== 1) {\n    throw new Error(`only single input supported currently`);\n  }\n\n  if (outputs.changeOutputs[0].chain !== outputs.changeOutputs[1].chain) {\n    // otherwise our fee calc is too complicated\n    throw new Error(`wallet outputs must be on same chain`);\n  }\n\n  const {\n    minChangeOutput = BigInt(10_000),\n    maxChangeOutput = Constraint.MAXSAT,\n    minInscriptionOutput = BigInt(10_000),\n    maxInscriptionOutput = BigInt(20_000),\n  } = constraints;\n\n  const [input] = inputs;\n  const inscriptionOutput = new OrdOutput(input.value, [toSatRange(satPoint)]);\n  return findOutputLayout(inscriptionOutput, {\n    minChangeOutput,\n    maxChangeOutput,\n    minInscriptionOutput,\n    maxInscriptionOutput,\n    feeFixed: getFee(\n      VirtualSizes.txSegOverheadVSize + Dimensions.fromUnspents(inputs).getInputsVSize(),\n      constraints.feeRateSatKB\n    ),\n    feePerOutput: getFee(\n      Dimensions.fromOutputOnChain(outputs.changeOutputs[0].chain).getOutputsVSize(),\n      constraints.feeRateSatKB\n    ),\n  });\n}\n\nexport function createPsbtForSingleInscriptionPassingTransaction(\n  network: Network,\n  inputBuilder: WalletInputBuilder,\n  unspents: bitgo.WalletUnspent<bigint>[],\n  satPoint: SatPoint,\n  outputs: InscriptionOutputs,\n  constraints: InscriptionTransactionConstraints\n): bitgo.UtxoPsbt {\n  const layout = findOutputLayoutForWalletUnspents(unspents, satPoint, outputs, constraints);\n  if (!layout) {\n    throw new Error(`could not output layout for inscription passing transaction`);\n  }\n  return createPsbtFromOutputLayout(network, inputBuilder, unspents, outputs, layout);\n}\n"]}