"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); const networks_1 = require("../networks"); const bscript = require("../script"); const lazy = require("./lazy"); const typef = require('typeforce'); 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 || {}); typef({ network: typef.maybe(typef.Object), output: typef.maybe(typef.Buffer), data: typef.maybe(typef.arrayOf(typef.Buffer)), }, a); const network = a.network || networks_1.bitcoin; const o = { 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(typef.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;