94 lines
2.1 KiB
JavaScript
94 lines
2.1 KiB
JavaScript
var _ = require('lodash');
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var Client = require('../lib/client');
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var Utils = function() {};
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var die = Utils.die = function(err) {
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if (err) {
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console.error(err);
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process.exit(1);
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}
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};
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Utils.parseMN = function(MN) {
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if (!MN)
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die('No m-n parameter');
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var mn = MN.split('-');
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var m = parseInt(mn[0]);
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var n = parseInt(mn[1]);
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if (!m || !n) {
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die('Bad m-n parameter:' + MN);
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}
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return [m, n];
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};
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Utils.shortID = function(id) {
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return id.substr(id.length - 4);
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};
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Utils.confirmationId = function(copayer) {
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return parseInt(copayer.xPubKeySignature.substr(-4), 16).toString().substr(-4);
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}
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Utils.getClient = function(args) {
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var storage = new Client.FileStorage({
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filename: args.config || process.env['BIT_FILE'],
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});
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return new Client({
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storage: storage,
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baseUrl: args.host || process.env['BIT_HOST'],
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verbose: args.verbose
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});
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}
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Utils.findOneTxProposal = function(txps, id) {
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var matches = _.filter(txps, function(tx) {
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return _.endsWith(Utils.shortID(tx.id), id);
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});
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if (!matches.length)
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Utils.die('Could not find TX Proposal:' + id);
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if (matches.length > 1)
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Utils.die('More than one TX Proposals match:' + id + ' : ' + _.map(matches, function(tx) {
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return tx.id;
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}).join(' '));;
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return matches[0];
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};
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Utils.UNITS = {
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'btc': 100000000,
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'bit': 100,
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'sat': 1,
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};
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Utils.parseAmount = function(text) {
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if (!_.isString(text))
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text = text.toString();
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var regex = '^(\\d*(\\.\\d{0,8})?)\\s*(' + _.keys(Utils.UNITS).join('|') + ')?$';
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var match = new RegExp(regex, 'i').exec(text.trim());
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if (!match || match.length === 0) throw new Error('Invalid amount');
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var amount = parseFloat(match[1]);
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if (!_.isNumber(amount) || _.isNaN(amount)) throw new Error('Invalid amount');
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var unit = (match[3] || 'sat').toLowerCase();
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var rate = Utils.UNITS[unit];
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if (!rate) throw new Error('Invalid unit')
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var amountSat = parseFloat((amount * rate).toPrecision(12));
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if (amountSat != Math.round(amountSat)) throw new Error('Invalid amount');
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return amountSat;
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};
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module.exports = Utils;
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