var Promise = require('promise')
var requestPromise = require('./helpers/requestPromise.js')
var BasePlugin = require('./base.js')
var cheerio = require('cheerio')

class Pwm extends BasePlugin {
  constructor (config) {
    super(config)
    this.name = 'Pvm'
    this.apikey = config.keys.owm.apiKey // owm for sunrise
  }

  help () {
    //     | Command             | Description
    return '.pvm                   Kertoo päivän, nimipäivän ja muita tietoja'
  }

  test (input) {
    var res = input.match(/^\.pvm$/i)
    if (res) {
      return true
    }
    return false
  }

  today () {
    var today = new Date()
    return (new Intl.DateTimeFormat('fi-FI', {day: 'numeric', month: 'numeric', timeZone: 'Europe/Helsinki'}).format(today))
  }
  getWeather (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
  }
  getNimipaiva () {
    let dateString = this.today()
    var urlArgs = {}
    var url = 'http://nimipäivä.fi/' + dateString + '/'

    var promise = requestPromise(url, urlArgs, {
      'Accept': 'application/json'
    }, true)

    return promise
  }

  getAllData () {
    return Promise.all([
      this.getNimipaiva(),
      this.getWeather('Helsinki')
    ])
  }

  result (input) {
    var that = this
    var resultPromise = new Promise(function (resolve, reject) {
      var res = input.match(/^\.pvm$/i)
      if (res) {
        that.getAllData().then(function (data) {
          // console.log(data)
          let weather = data[1]
          if (weather.cod === '404') {
            reject(new Error('Eioo'))
            return
          }

          let sunriseDate = new Date(Number(weather.sys.sunrise) * 1000)
          let sunsetDate = new Date(Number(weather.sys.sunset) * 1000)
          let sunrise = new Intl.DateTimeFormat('fi-FI', {hour: 'numeric', minute: 'numeric', timeZone: 'Europe/Helsinki'}).format(sunriseDate)
          let sunset = new Intl.DateTimeFormat('fi-FI', {hour: 'numeric', minute: 'numeric', timeZone: 'Europe/Helsinki'}).format(sunsetDate)

          const $ = cheerio.load(data[0])
          let names = []
          $('.text p').children('a').each(function (i, elem) {
            names.push($(this).text())
          })

          let text = 'Pvm: Tänään on ' + that.today() + ' ja nimipäivää viettävät ' + names.join(', ') + '. Aurinko nousee ' + sunrise + ' ja laskee ' + sunset + '.'

          resolve(text)
        }, function (error) {
          reject(error)
        })
      }
    })

    return resultPromise
  }
}

module.exports = Pwm