liquidjs-lib/src/payments/embed.js

Client-side Liquid JavaScript library

'use strict';
var __createBinding =
  (this && this.__createBinding) ||
  (Object.create
    ? function (o, m, k, k2) {
        if (k2 === undefined) k2 = k;
        var desc = Object.getOwnPropertyDescriptor(m, k);
        if (
          !desc ||
          ('get' in desc ? !m.__esModule : desc.writable || desc.configurable)
        ) {
          desc = {
            enumerable: true,
            get: function () {
              return m[k];
            },
          };
        }
        Object.defineProperty(o, k2, desc);
      }
    : function (o, m, k, k2) {
        if (k2 === undefined) k2 = k;
        o[k2] = m[k];
      });
var __setModuleDefault =
  (this && this.__setModuleDefault) ||
  (Object.create
    ? function (o, v) {
        Object.defineProperty(o, 'default', { enumerable: true, value: v });
      }
    : function (o, v) {
        o['default'] = v;
      });
var __importStar =
  (this && this.__importStar) ||
  function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null)
      for (var k in mod)
        if (k !== 'default' && Object.prototype.hasOwnProperty.call(mod, k))
          __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
  };
Object.defineProperty(exports, '__esModule', { value: true });
exports.p2data = void 0;
const networks_1 = require('../networks');
const bscript = __importStar(require('../script'));
const types_1 = require('../types');
const lazy = __importStar(require('./lazy'));
const OPS = bscript.OPS;
function stacksEqual(a, b) {
  if (a.length !== b.length) return false;
  return a.every((x, i) => {
    return x.equals(b[i]);
  });
}
// output: OP_RETURN ...
function p2data(a, opts) {
  if (!a.data && !a.output) throw new TypeError('Not enough data');
  opts = Object.assign({ validate: true }, opts || {});
  (0, types_1.typeforce)(
    {
      network: types_1.typeforce.maybe(types_1.typeforce.Object),
      output: types_1.typeforce.maybe(types_1.typeforce.Buffer),
      data: types_1.typeforce.maybe(
        types_1.typeforce.arrayOf(types_1.typeforce.Buffer),
      ),
    },
    a,
  );
  const network = a.network || networks_1.liquid;
  const o = { name: 'embed', network };
  lazy.prop(o, 'output', () => {
    if (!a.data) return;
    return bscript.compile([OPS.OP_RETURN].concat(a.data));
  });
  lazy.prop(o, 'data', () => {
    if (!a.output) return;
    return bscript.decompile(a.output).slice(1);
  });
  // extended validation
  if (opts.validate) {
    if (a.output) {
      const chunks = bscript.decompile(a.output);
      if (chunks[0] !== OPS.OP_RETURN) throw new TypeError('Output is invalid');
      if (!chunks.slice(1).every(types_1.typeforce.Buffer))
        throw new TypeError('Output is invalid');
      if (a.data && !stacksEqual(a.data, o.data))
        throw new TypeError('Data mismatch');
    }
  }
  return Object.assign(o, a);
}
exports.p2data = p2data;