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

exports.getInfo = (req, res, next) => {
  common.setOptions();
  options = common.getOptions();
  options.url = common.getSelLNServerUrl() + '/getinfo';
  options.form = {};
  logger.info({fileName:'GetInfo', msg: 'Selected Node: ' + JSON.stringify(common.selectedNode.ln_node)});
  logger.info({fileName: 'GetInfo', msg: 'Calling Info from Eclair server url: ' + options.url});
  if (!options.headers || !options.headers.authorization) {
    logger.error({fileName: 'GetInfo', lineNum: 13, msg: 'Eclair Get info failed due to missing or wrong password!'});
    res.status(502).json({
      message: "Fetching Info Failed!",
      error: "Missing Or Wrong Password"
    });
  } else {
    request.post(options).then((body) => {
      logger.info({fileName: 'GetInfo', msg: JSON.stringify(body)});
      const body_str = (!body) ? '' : JSON.stringify(body);
      const search_idx = (!body) ? -1 : body_str.search('Not Found');
      body.currency_unit = 'BTC';
      body.smaller_currency_unit = 'Sats';
      body.lnImplementation = 'Eclair';
      res.status(200).json(body);
    })
    .catch(errRes => {
      let err = JSON.parse(JSON.stringify(errRes));
      if (err.options && err.options.headers && err.options.headers.authorization) {
        delete err.options.headers.authorization;
      }
      if (err.response && err.response.request && err.response.request.headers && err.response.request.headers.authorization) {
        delete err.response.request.headers.authorization;
      }
      logger.error({fileName: 'GetInfo', lineNum: 57, msg: 'Get Info Error: ' + JSON.stringify(err)});
      return res.status(err.statusCode ? err.statusCode : 500).json({
        message: "Fetching Info failed!",
        error: err.error && err.error.error ? err.error.error : err.error ? err.error : "Unknown Server Error"
      });
    });
  }
};
