var request = require('request-promise');
var common = require('../../routes/common');
var logger = require('../shared/logger');
var options = {};

exports.getPeers = (req, res, next) => {
  logger.log({level: 'INFO', fileName: 'Peers', msg: 'List Peers..'});
  options = common.getOptions();
  options.url = common.getSelLNServerUrl() + '/v1/peer/listPeers';
  request(options).then(function (body) {
    body.forEach(peer => { if (!peer.alias || peer.alias === '') { peer.alias = peer.id.substring(0, 20);}});
    let peers = (body) ? common.sortDescByStrKey(body, 'alias') : [];
    logger.log({level: 'DEBUG', fileName: 'Peers', msg: 'Peers with Alias', data: peers});
    logger.log({level: 'INFO', fileName: 'Peers', msg: 'Peers Received'});
    res.status(200).json(peers);
  })
  .catch(errRes => {
    const err = common.handleError(errRes,  'Peers', 'List Peers Error');
    return res.status(err.statusCode).json({message: err.message, error: err.error});
  });
};

exports.postPeer = (req, res, next) => {
  logger.log({level: 'INFO', fileName: 'Peers', msg: 'Connecting Peer..'});
  options = common.getOptions();
  options.url = common.getSelLNServerUrl() + '/v1/peer/connect';
  options.body = req.body;
  request.post(options).then((body) => {
    logger.log({level: 'DEBUG', fileName: 'Peers', msg: 'Peer Added', data: body});
    options.url = common.getSelLNServerUrl() + '/v1/peer/listPeers';
    request(options).then(function (body) {
      let peers = ( body) ? common.sortDescByStrKey(body, 'alias') : [];
      peers = common.newestOnTop(peers, 'id', req.body.id);
      logger.log({level: 'DEBUG', fileName: 'Peers', msg: 'Peer with Newest On Top', data: peers});
      logger.log({level: 'DEBUG', fileName: 'Peers', msg: 'Peer Added Successfully'});
      logger.log({level: 'INFO', fileName: 'Peers', msg: 'Peer Connected'});
      res.status(201).json(peers);
    }).catch(errRes => {
      const err = common.handleError(errRes,  'Peers', 'Connect Peer Error');
      return res.status(err.statusCode).json({message: err.message, error: err.error});
    });
  }).catch(errRes => {
    const err = common.handleError(errRes,  'Peers', 'Connect Peer Error');
    return res.status(err.statusCode).json({message: err.message, error: err.error});
  });
};

exports.deletePeer = (req, res, next) => {
  logger.log({level: 'INFO', fileName: 'Peers', msg: 'Disconnecting Peer..'});
  options = common.getOptions();
  options.url = common.getSelLNServerUrl() + '/v1/peer/disconnect/' + req.params.peerId + '?force=' + req.query.force;
  request.delete(options).then((body) => {
    logger.log({level: 'DEBUG', fileName: 'Peers', msg: 'Detach Peer Response', data: body});
    logger.log({level: 'DEBUG', fileName: 'Peers', msg: 'Peer Detached', data: req.params.peerId});
    logger.log({level: 'INFO', fileName: 'Peers', msg: 'Peer Disconnected'});
    res.status(204).json({});
  })
  .catch(errRes => {
    const err = common.handleError(errRes,  'Peers', 'Detach Peer Error');
    return res.status(err.statusCode).json({message: err.message, error: err.error});
  });
};