const request = require('request')

const forecast = (latitude, longitude, callback) => {
  const url = 'https://api.darksky.net/forecast/bae9e39ba5c00299d5a95b35c1ae20cc/' + latitude + ',' + longitude + '?units=si'

  request({ url, json: true }, (error, {body}) => {
    if (error) {
      callback('Unable to connect to weather service!', undefined)
    } else if  (body.error) {
      callback('Unable to find location', undefined)
    } else {
      callback(undefined, body.daily.data[0].summary + ' It is currently ' + body.currently.temperature + ' degrees out. Today\'s high will be ' + body.daily.data[0].temperatureMax + ' degrees, with a low of ' + body.daily.data[0].temperatureMin + '. There is a ' + body.currently.precipProbability + '% chance of rain.')
    }
  })
}

module.exports = forecast