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

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

    });
    return promise;
  }

  result(input) {
    var that = this;
    var resultPromise = new Promise(function(resultResolve, resultReject) {
      var host = null;
      var tootId = null;

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

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

      if (host !== null && tootId !== null) {
        that.getToot(host, tootId).then(function(toot) {
          resultResolve('Tuuttaus: ' + toot);
        }, function(error) {
          resultReject('Tuuttaus: Jokin virhe tapahtui');
        });
      }
    });

    return resultPromise;
  }
}

module.exports = Mastodon;