const logger = require('log4js').getLogger('GeoCode 🔧');

const { get, isEmpty, has, uniq } = require('lodash');

logger.level = 'debug';

var ConfidenceInKM = {
  '10': 0.25,
  '9': 0.5,
  '8': 1,
  '7': 5,
  '6': 7.5,
  '5': 10,
  '4': 15,
  '3': 20,
  '2': 25,
  '1': Number.POSITIVE_INFINITY,
  '0': Number.NaN
};

function formatResult (result) {
  var confidence = result.confidence || 0;

  return {
    'latitude': result.geometry.lat,
    'longitude': result.geometry.lng,
    'country': result.components.country,
    'city': result.components.city,
    'state': result.components.state,
    'zipcode': result.components.postcode,
    'streetName': result.components.road,
    'streetNumber': result.components.house_number,
    'countryCode': result.components.country_code,
    'county': result.components.county,
    'suburb': result.components.suburb,
    'neighbourhood' : result.components.neighbourhood,
    'village' : result.components.village,
    'formatted' : result.formatted,
    'extra': {
      'flag' : result.annotations.flag,
      'confidence': confidence,
      'confidenceKM': ConfidenceInKM[result.confidence] || Number.NaN,
      'map' : result.annotations.OSM.url

    }
  };
}

function reduceOpencage(result) {
  logger.debug(JSON.stringify(result));
  const results = [];

  if (result && result.results instanceof Array)
    for (let i = 0; i < result.results.length; i++)
      results.push(formatResult(result.results[i]));

  return results;
}

module.exports = { reduceOpencage };