var EmbarkJS =
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/* 0 */
/***/ (function(module, exports) {

/*jshint esversion: 6 */
//var Ipfs = require('./ipfs.js');

//=========================================================
// Embark Smart Contracts
//=========================================================

var EmbarkJS = {
};

EmbarkJS.Contract = function(options) {
  var self = this;
  var i, abiElement;

  this.abi = options.abi;
  this.address = options.address;
  this.code = '0x' + options.code;
  this.web3 = options.web3 || web3;

  var ContractClass = this.web3.eth.contract(this.abi);

  this.eventList = [];

  if (this.abi) {
    for (i = 0; i < this.abi.length; i++) {
      abiElement = this.abi[i];
      if (abiElement.type === 'event') {
        this.eventList.push(abiElement.name);
      }
    }
  }

  var messageEvents = function() {
    this.cb = function() {};
  };

  messageEvents.prototype.then = function(cb) {
    this.cb = cb;
  };

  messageEvents.prototype.error = function(err) {
    return err;
  };

  this._originalContractObject = ContractClass.at(this.address);
  this._methods = Object.getOwnPropertyNames(this._originalContractObject).filter(function (p) {
    // TODO: check for forbidden properties
    if (self.eventList.indexOf(p) >= 0) {

      self[p] = function() {
        var promise = new messageEvents();
        var args = Array.prototype.slice.call(arguments);
        args.push(function(err, result) {
          if (err) {
            promise.error(err);
          } else {
            promise.cb(result);
          }
        });

        self._originalContractObject[p].apply(self._originalContractObject[p], args);
        return promise;
      };
      return true;
    } else if (typeof self._originalContractObject[p] === 'function') {
      self[p] = function(_args) {
        var args = Array.prototype.slice.call(arguments);
        var fn = self._originalContractObject[p];
        var props = self.abi.find((x) => x.name == p);

        var promise = new Promise(function(resolve, reject) {
          args.push(function(err, transaction) {
            promise.tx = transaction;
            if (err) {
              return reject(err);
            }

            var getConfirmation = function() {
              self.web3.eth.getTransactionReceipt(transaction, function(err, receipt) {
                if (err) {
                  return reject(err);
                }

                if (receipt !== null) {
                  return resolve(receipt);
                }

                setTimeout(getConfirmation, 1000);
              });
            };

            if (typeof(transaction) !== "string" || props.constant) {
              resolve(transaction);
            } else {
              getConfirmation();
            }
          });

          fn.apply(fn, args);
        });

        return promise;
      };
      return true;
    }
    return false;
  });
};

EmbarkJS.Contract.prototype.deploy = function(args, _options) {
  var self = this;
  var contractParams;
  var options = _options || {};

  contractParams = args || [];

  contractParams.push({
    from: this.web3.eth.accounts[0],
    data: this.code,
    gas: options.gas || 800000
  });

  var contractObject = this.web3.eth.contract(this.abi);

  var promise = new Promise(function(resolve, reject) {
    contractParams.push(function(err, transaction) {
      if (err) {
        reject(err);
      } else if (transaction.address !== undefined) {
        resolve(new EmbarkJS.Contract({abi: self.abi, code: self.code, address: transaction.address}));
      }
    });

    // returns promise
    // deploys contract
    // wraps it around EmbarkJS.Contract
    contractObject["new"].apply(contractObject, contractParams);
  });


  return promise;
};

//=========================================================
// Embark Storage
//=========================================================

EmbarkJS.Storage = {
};

EmbarkJS.Storage.Providers = {
  IPFS : 'ipfs',
  SWARM: 'swarm'
};

EmbarkJS.Storage.IPFS = {
};

EmbarkJS.Storage.connect = function(provider){
    var self = this;
    var promise = new Promise(function(resolve, reject) {
      if (provider.toLowerCase() === EmbarkJS.Storage.Providers.IPFS) {
        resolve(self.currentStorage.ipfsConnection);
      }
      else {
        var error = new Error(provider + ' storage provider not supported');
        reject(error);
      };
    });

    return promise;
};

EmbarkJS.Storage.saveText = function(text) {
  return this.currentStorage.saveText(text);
};

EmbarkJS.Storage.get = function(hash) {
  return this.currentStorage.get(hash);
};

EmbarkJS.Storage.uploadFile = function(inputSelector){
  return this.currentStorage.uploadFile(inputSelector);
}

EmbarkJS.Storage.getUrl = function(hash){
  return this.currentStorage.getUrl(hash);
}

EmbarkJS.Storage.setProvider = function(provider, options) {
  if (provider.toLowerCase() === EmbarkJS.Storage.Providers.IPFS) {
    //I don't think currentStorage is used anywhere, this might not be needed
    //for now until additional storage providers are supported. But keeping it
    //anyways
    this.currentStorage = EmbarkJS.Storage.IPFS;
    try{
      if (options === undefined) {
        this.currentStorage.ipfsConnection = IpfsApi('localhost', '5001');
      } else {
        this.currentStorage.ipfsConnection = IpfsApi(options.server, options.port);
      }
    }
    catch(err){
      this.currentStorage.ipfsConnection = null;
    }

  }
  else if (provider.toLowerCase() === EmbarkJS.Storage.SWARM){
    throw Error('Swarm not implemented');
    this.currentStorage = EmbarkJS.Storage.SWARM;
    if (options === undefined) {
      //Connect to default Swarm node
    } else {
      //Connect using options
    }
  }
  else {
    throw Error('Unknown storage provider');
  }
};

EmbarkJS.Storage.IPFS.saveText = function(text) {
  var self = this;
  if (!self.ipfsConnection) {
    EmbarkJS.Storage.setProvider(EmbarkJS.Storage.Providers.IPFS);
  }
  var promise = new Promise(function(resolve, reject) {
    if (!self.ipfsConnection){
      var connectionError = new Error('No IPFS connection');
      reject(connectionError);
    }
    self.ipfsConnection.add((new self.ipfsConnection.Buffer(text)), function(err, result) {
      if (err) {
        reject(err);
      } else {
        resolve(result[0].path);
      }
    });
  });

  return promise;
};

EmbarkJS.Storage.IPFS.get = function(hash) {
  var self = this;
  // TODO: detect type, then convert if needed
  //var ipfsHash = web3.toAscii(hash);
  if (!self.ipfsConnection) {
    EmbarkJS.Storage.setProvider(EmbarkJS.Storage.Providers.IPFS);
  }
  var promise = new Promise(function(resolve, reject) {
    if (!self.ipfsConnection){
      var connectionError = new Error('No IPFS connection');
      reject(connectionError);
    }
    self.ipfsConnection.object.get([hash]).then(function(node) {
      resolve(node.data);
    }).catch(function (err){
      reject(err);
    });
  });

  return promise;
};

EmbarkJS.Storage.IPFS.uploadFile = function(inputSelector) {
  var self = this;
  var file = inputSelector[0].files[0];

  if (file === undefined) {
    throw new Error('no file found');
  }

  if (!self.ipfsConnection) {
    EmbarkJS.Storage.setProvider(EmbarkJS.Storage.Providers.IPFS);
  }

  var promise = new Promise(function(resolve, reject) {
    if (!self.ipfsConnection){
      var connectionError = new Error('No IPFS connection');
      reject(connectionError);
    }
    var reader = new FileReader();
    reader.onloadend = function() {
      var fileContent = reader.result;
      var buffer = self.ipfsConnection.Buffer.from(fileContent);
      self.ipfsConnection.add(buffer, function(err, result) {
        if (err) {
          reject(err);
        } else {
          resolve(result[0].path);
        }
      });
    };
    reader.readAsArrayBuffer(file);
  });

  return promise;
};

EmbarkJS.Storage.IPFS.getUrl = function(hash) {
  //var ipfsHash = web3.toAscii(hash);

  return 'http://localhost:8080/ipfs/' + hash;
};

//=========================================================
// Embark Messaging
//=========================================================

EmbarkJS.Messages = {
};

EmbarkJS.Messages.setProvider = function(provider, options) {
  var self = this;
  var ipfs;
  if (provider === 'whisper') {
    this.currentMessages = EmbarkJS.Messages.Whisper;
    if (typeof variable === 'undefined') {
      if (options === undefined) {
        web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
      } else {
        web3 = new Web3(new Web3.providers.HttpProvider("http://" + options.server + ':' + options.port));
      }
    }
    web3.version.getWhisper(function(err, res) {
      if (err) {
        console.log("whisper not available");
      } else {
        self.currentMessages.identity = web3.shh.newIdentity();
      }
    });
  } else if (provider === 'orbit') {
    this.currentMessages = EmbarkJS.Messages.Orbit;
    if (options === undefined) {
      ipfs = HaadIpfsApi('localhost', '5001');
    } else {
      ipfs = HaadIpfsApi(options.server, options.port);
    }
    this.currentMessages.orbit = new Orbit(ipfs);
    this.currentMessages.orbit.connect(web3.eth.accounts[0]);
  } else {
    throw Error('Unknown message provider');
  }
};

EmbarkJS.Messages.sendMessage = function(options) {
  return this.currentMessages.sendMessage(options);
};

EmbarkJS.Messages.listenTo = function(options) {
  return this.currentMessages.listenTo(options);
};

EmbarkJS.Messages.Whisper = {
};

EmbarkJS.Messages.Whisper.sendMessage = function(options) {
  var topics = options.topic || options.topics;
  var data = options.data || options.payload;
  var identity = options.identity || this.identity || web3.shh.newIdentity();
  var ttl = options.ttl || 100;
  var priority = options.priority || 1000;
  var _topics;

  if (topics === undefined) {
    throw new Error("missing option: topic");
  }

  if (data === undefined) {
    throw new Error("missing option: data");
  }

  // do fromAscii to each topics unless it's already a string
  if (typeof topics === 'string') {
    _topics = [web3.fromAscii(topics)];
  } else {
    // TODO: replace with es6 + babel;
    for (var i = 0; i < topics.length; i++) {
      _topics.push(web3.fromAscii(topics[i]));
    }
  }
  topics = _topics;

  var payload = JSON.stringify(data);

  var message = {
    from: identity,
    topics: topics,
    payload: web3.fromAscii(payload),
    ttl: ttl,
    priority: priority
  };

  return web3.shh.post(message, function() {});
};

EmbarkJS.Messages.Whisper.listenTo = function(options) {
  var topics = options.topic || options.topics;
  var _topics = [];

  if (typeof topics === 'string') {
    _topics = [topics];
  } else {
    // TODO: replace with es6 + babel;
    for (var i = 0; i < topics.length; i++) {
      _topics.push(topics[i]);
    }
  }
  topics = _topics;

  var filterOptions = {
    topics: topics
  };

  var messageEvents = function() {
    this.cb = function() {};
  };

  messageEvents.prototype.then = function(cb) {
    this.cb = cb;
  };

  messageEvents.prototype.error = function(err) {
    return err;
  };

  messageEvents.prototype.stop = function() {
    this.filter.stopWatching();
  };

  var promise = new messageEvents();

  var filter = web3.shh.filter(filterOptions, function(err, result) {
    var payload = JSON.parse(web3.toAscii(result.payload));
    var data;
    if (err) {
      promise.error(err);
    } else {
      data = {
        topic: topics,
        data: payload,
        from: result.from,
        time: (new Date(result.sent * 1000))
      };
      promise.cb(payload, data, result);
    }
  });

  promise.filter = filter;

  return promise;
};

EmbarkJS.Messages.Orbit = {
};

EmbarkJS.Messages.Orbit.sendMessage = function(options) {
  var topics = options.topic || options.topics;
  var data = options.data || options.payload;

  if (topics === undefined) {
    throw new Error("missing option: topic");
  }

  if (data === undefined) {
    throw new Error("missing option: data");
  }

  if (typeof topics === 'string') {
    topics = topics;
  } else {
    // TODO: better to just send to different channels instead
    topics = topics.join(',');
  }

  this.orbit.join(topics);

  var payload = JSON.stringify(data);

  this.orbit.send(topics, data);
};

EmbarkJS.Messages.Orbit.listenTo = function(options) {
  var self = this;
  var topics = options.topic || options.topics;

  if (typeof topics === 'string') {
    topics = topics;
  } else {
    topics = topics.join(',');
  }

  this.orbit.join(topics);

  var messageEvents = function() {
    this.cb = function() {};
  };

  messageEvents.prototype.then = function(cb) {
    this.cb = cb;
  };

  messageEvents.prototype.error = function(err) {
    return err;
  };

  var promise = new messageEvents();

  this.orbit.events.on('message', (channel, message) => {
    // TODO: looks like sometimes it's receving messages from all topics
    if (topics !== channel) return;
    self.orbit.getPost(message.payload.value, true).then((post) => {
      var data = {
        topic: channel,
        data: post.content,
        from: post.meta.from.name,
        time: (new Date(post.meta.ts))
      };
      promise.cb(post.content, data, post);
    });
  });

  return promise;
};

module.exports = EmbarkJS;


/***/ })
/******/ ]);