52 lines
1.6 KiB
JavaScript
52 lines
1.6 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, '__esModule', { value: true });
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exports.p2data = void 0;
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const networks_1 = require('../networks');
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const bscript = require('../script');
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const types_1 = require('../types');
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const lazy = require('./lazy');
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const OPS = bscript.OPS;
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function stacksEqual(a, b) {
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if (a.length !== b.length) return false;
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return a.every((x, i) => {
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return x.equals(b[i]);
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});
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}
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// output: OP_RETURN ...
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function p2data(a, opts) {
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if (!a.data && !a.output) throw new TypeError('Not enough data');
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opts = Object.assign({ validate: true }, opts || {});
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(0, types_1.typeforce)(
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{
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network: types_1.typeforce.maybe(types_1.typeforce.Object),
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output: types_1.typeforce.maybe(types_1.typeforce.Buffer),
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data: types_1.typeforce.maybe(
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types_1.typeforce.arrayOf(types_1.typeforce.Buffer),
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),
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},
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a,
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);
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const network = a.network || networks_1.mainnet;
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const o = { name: 'embed', network };
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lazy.prop(o, 'output', () => {
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if (!a.data) return;
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return bscript.compile([OPS.OP_RETURN].concat(a.data));
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});
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lazy.prop(o, 'data', () => {
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if (!a.output) return;
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return bscript.decompile(a.output).slice(1);
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});
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// extended validation
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if (opts.validate) {
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if (a.output) {
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const chunks = bscript.decompile(a.output);
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if (chunks[0] !== OPS.OP_RETURN) throw new TypeError('Output is invalid');
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if (!chunks.slice(1).every(types_1.typeforce.Buffer))
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throw new TypeError('Output is invalid');
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if (a.data && !stacksEqual(a.data, o.data))
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throw new TypeError('Data mismatch');
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}
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}
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return Object.assign(o, a);
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}
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exports.p2data = p2data;
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