var Promise = require('promise');
var requestPromise = require('./helpers/requestPromise.js');
var BasePlugin = require('./base.js');
var logger = require('winston');

class Weather extends BasePlugin {
  constructor(config) {
    super(config);
    this.name = 'Weather';

    this.apikey = config.keys.owm.apiKey;
    this.iconCodeToText = {
      '01d': 'selkeää',
      '02d': 'puolipilvistä',
      '03d': 'pilvistä',
      '04d': 'pilvipeite rakoilee',
      '09d': 'sadekuuroja',
      '10d': 'vesisadetta',
      '11d': 'ukkostaa',
      '13d': 'lumisadetta',
      '50d': 'sumua',
      '01n': 'selkeää',
      '02n': 'puolipilvistä',
      '03n': 'pilvistä',
      '04n': 'pilvipeite rakoilee',
      '09n': 'sadekuuroja',
      '10n': 'vesisadetta',
      '11n': 'ukkostaa',
      '13n': 'lumisadetta',
      '50n': 'sumua'
    };
  }

  test(input) {
    var res = null;
    if (res = input.match(/^\.saa(.*)/i)) {
      return true;
    }
    return false;
  }

  getTemperature(city, code) {
    var language = 'fi';

    var urlArgs = {
      'q': city,
      'lang': language,
      'APPID': this.apikey
    };
    var url = 'http://api.openweathermap.org/data/2.5/weather';
    var promise = requestPromise(url, urlArgs);

    return promise;
  }

  getTemperatures(cities, code) {
    logger.info('getting temperatures ', cities, code);
    if(typeof code === 'undefined') {
      code = 'fi';
    }
    var language = 'fi';

    var idList = '';
    for(var city in cities) {
      idList += cities[city] + ',';
    }
    idList = idList.substring(0,idList.length - 1);

    var urlArgs = {
      'id': idList,
      'lang': language,
      'APPID': this.apikey
    };
    var url = 'http://api.openweathermap.org/data/2.5/group';
    var promise = requestPromise(url, urlArgs);

    return promise;
  }
  getPenaTemperatures(start, stop, limit) {
    logger.info('getting pena', start, stop, limit);
    var d = new Date();
    var urlArgs = {};

    if(typeof limit === 'undefined') {
      limit = 20;
    }

    urlArgs.limit = limit;

    if(typeof start !== 'undefined' && typeof stop !== 'undefined') {
      urlArgs.limit = limit;
      urlArgs.start = start;
      urlArgs.stop = stop;
    }

    var url = 'http://masa.dy.fi/api/temperature.php';

    var promise = requestPromise(url, urlArgs);

    return promise;
  }
  getTemperatureString(owmCityIds) {
    let that = this;
    var promise = new Promise(function(resolve, reject) {
      Promise.all([
        that.getTemperatures(owmCityIds),
        that.getPenaTemperatures()
      ]).then(function(results) {
        var resultString = '';
        // OWM
        results[0].list.forEach(function(data) {
          var city = data.name;
          var temp = (data.main.temp-273.15).toFixed(1);
          var code = data.weather[0].icon;

          resultString += '' + city + ' ('+temp+' °C, '+that.iconCodeToText[code]+'), ';
        });

        if(results[1].length > 0) {
          var temp = Number(results[1][0].temp).toFixed(1);
          resultString += 'Aura (' + temp + ' °C)';
        }

        resolve(resultString);

      }, (str) => reject(str));
    });
    return promise;
  }

  result(input) {
    // Different cases
    let that = this;

    var resultPromise = new Promise(function(resultResolve, resultReject) {


      if (input.match(/^\.sää$/i) || input.match(/^\.saa$/i)) {
        that.getTemperatureString(that.config.owmCityIds).then(function(str) {
          resultResolve('Sää: ' + str);
        }, function(str) {
          resultReject(str)
        });
      }

      var res = null;
      // Weather
      if (res = input.match(/^\.s(ää|aa) ([^0-9]+)$/i)) {
        //console.log('kaupunki', res[1]);
        that.getTemperature(res[2]).then(function(result) {
          //console.log(result);
          if(result.cod === '404') {
            //console.log('Eioo: ' + res[1]);
            client.say(to, 'Eioo: ' + res[2]);
          } else {
            var city = result.name;
            var country = result.sys.country;
            var temp = (result.main.temp-273.15).toFixed(1);
            var code = result.weather[0].icon;
            var sunriseDate = new Date(result.sys.sunrise*1000);
            var sunsetDate = new Date(result.sys.sunset*1000);

            var sunrise = sunriseDate.getHours() + '.' + sunriseDate.getMinutes();
            var sunset = sunsetDate.getHours() + '.' + sunsetDate.getMinutes();

            var humidity = result.main.humidity;
            var pressure = result.main.pressure;

            var windspeed = result.wind.speed;

            let str = 'Sää: '+city+', '+country+' ('+temp+' °C, '+ that.iconCodeToText[code] +', ilmankosteus: '+humidity+' %, ilmanpaine: '+pressure+' hPa, tuulen nopeus: '+windspeed+' m/s)';
            resultResolve('Sää: ' + str);
          }
        }, function(error) {
          logger.error('ERROR ',error);
          resultResolve('Oho! Tapahtui virhe. Yritä myöhemmin uudelleen...');
        });
      }
    });
    return resultPromise;
  }

}

module.exports = Weather;