/*
This file is part of web3.js.
web3.js is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
web3.js is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with web3.js. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file index.js
* @author Fabian Vogelsteller <fabian@ethereum.org>
* @date 2017
*/
"use strict";
var swarm = require("swarm-js");
var Bzz = function Bzz(provider) {
this.givenProvider = Bzz.givenProvider;
if (provider && provider._requestManager) {
provider = provider.currentProvider;
}
// only allow file picker when in browser
if (typeof document !== 'undefined') {
this.pick = swarm.pick;
}
this.setProvider(provider);
};
// set default ethereum provider
/* jshint ignore:start */
Bzz.givenProvider = null;
if (typeof ethereum !== 'undefined' && ethereum.bzz) {
Bzz.givenProvider = ethereum.bzz;
}
/* jshint ignore:end */
Bzz.prototype.setProvider = function (provider) {
// is ethereum provider
if (!!provider && typeof provider === 'object' && typeof provider.bzz === 'string') {
provider = provider.bzz;
// is no string, set default
}
// else if(!_.isString(provider)) {
// provider = 'http://swarm-gateways.net'; // default to gateway
// }
if (typeof provider === 'string') {
this.currentProvider = provider;
}
else {
this.currentProvider = null;
var noProviderError = new Error('No provider set, please set one using bzz.setProvider().');
this.download = this.upload = this.isAvailable = function () {
throw noProviderError;
};
return false;
}
// add functions
this.download = swarm.at(provider).download;
this.upload = swarm.at(provider).upload;
this.isAvailable = swarm.at(provider).isAvailable;
return true;
};
module.exports = Bzz;