import IpfsApi from 'ipfs-api';

let __embarkIPFS = {};

__embarkIPFS.setProvider = function (options) {
  var self = this;
  return new Promise(function (resolve, reject) {
    try {
      if (!options) {
        self._config = options;
        self._ipfsConnection = IpfsApi('localhost', '5001');
        self._getUrl = "http://localhost:8080/ipfs/";
      } else {
        var ipfsOptions = {host: options.host || options.server, protocol: 'http'};
        if (options.protocol) {
          ipfsOptions.protocol = options.protocol;
        }
        if (options.port && options.port !== 'false') {
          ipfsOptions.port = options.port;
        }
        self._ipfsConnection = IpfsApi(ipfsOptions);
        self._getUrl = options.getUrl || "http://localhost:8080/ipfs/";
      }
      resolve(self);
    } catch (err) {
      console.error(err);
      self._ipfsConnection = null;
      reject(new Error('Failed to connect to IPFS'));
    }
  });
};

__embarkIPFS.isAvailable = function () {
  return new Promise((resolve) => {
    if (!this._ipfsConnection) {
      return resolve(false);
    }
    this._ipfsConnection.id()
      .then((id) => {
        resolve(Boolean(id));
      })
      .catch(() => {
        resolve(false);
      });
  });
};