var Promise = require('promise')
var requestPromise = require('./helpers/requestPromise.js')
var BasePlugin = require('./base.js')
var htmlToText = require('html-to-text')
class Mastodon extends BasePlugin {
  constructor (config) {
    super(config)
    this.name = 'Mastodon'
  }

  test (input) {
    if (input.match(/http(s)?:\/\/(www\.)?((.*\..*\/users\/([a-zA-Z0-9_-]*)\/statuses\/([0-9_-]*)))/)) {
      return true
    }
    if (input.match(/http(s)?:\/\/(www\.)?(((.*\..*)\/@([a-zA-Z0-9_-]*)\/([0-9_-]*)))/)) {
      return true
    }
    return false
  }

  getToot (host, statusId) {
    var promise = new Promise(function (resolve, reject) {
      var url = 'https://' + host + '/api/v1/statuses/' + statusId
      requestPromise(url, {}, {
        'Accept': 'application/json'
      }).then(function (toot) {
        if (!toot.error) {
          var user = toot.account.username
          var time = toot.created_at
          var dateTime = new Date(time)
          var dateTimeLocale = dateTime.toLocaleDateString('fi-FI') + ' ' + dateTime.getHours() + '.' + dateTime.getMinutes()

          var tootContent = toot.content
          tootContent = htmlToText.fromString(tootContent, {
            wordwrap: false,
            ignoreHref: true,
            preserveNewlines: false
          })

          var str = '@' + user + ': "' + tootContent + '" (' + dateTimeLocale + ')'
          str = str.replace(/(?:\r\n|\r|\n)/g, ' ')

          resolve(str)
        } else {
          reject(new Error(''))
        }
      })
    })
    return promise
  }

  result (input) {
    var that = this
    var resultPromise = new Promise(function (resolve, reject) {
      var host = null
      var tootId = null

      var res = input.match(/http(s)?:\/\/(www\.)?(((.*\..*)\/users\/([a-zA-Z0-9_-]*)\/statuses\/([0-9_-]*)))/)
      if (res !== null) {
        host = res[5]
        tootId = res[7]
      }

      res = input.match(/http(s)?:\/\/(www\.)?(((.*\..*)\/@([a-zA-Z0-9_-]*)\/([0-9_-]*)))/)
      if (res !== null) {
        host = res[5]
        tootId = res[7]
      }

      if (host !== null && tootId !== null) {
        that.getToot(host, tootId).then(function (toot) {
          resolve('Tuuttaus: ' + toot)
        }, function () {
          reject(new Error('Tuuttaus: Jokin virhe tapahtui'))
        })
      }
    })

    return resultPromise
  }
}

module.exports = Mastodon