tgapi/esm/index.mjs

Actual Telegram bot API JS implementation

/**
 * tgapi v2.2.6
 * Actual Telegram bot API JS implementation
 */

import FormData from 'form-data';
import 'core-js/modules/es.symbol.description';
import 'core-js/modules/es.promise';
import EventEmitter from 'events';
import $$observable from 'symbol-observable';
import fetch from 'isomorphic-fetch';

const getSet = keyName => {
  const key = Symbol(keyName);
  return [instance => instance[key], // eslint-disable-next-line no-param-reassign
  (instance, value) => instance[key] = value];
};

const [getToken, setToken] = getSet('token');
const [getUserCallMethod, setUserCallMethod] = getSet('userCallMethod');

const callMethod = (client, method, formData) => {
  const token = getToken(client);
  const url = `https://api.telegram.org/bot${token}/${method}`;
  const userCallMethod = getUserCallMethod(client);
  if (!formData) return userCallMethod({
    url,
    token,
    method
  });
  const body = new FormData();
  Object.entries(formData).forEach(prop => {
    if (prop[1] != null) body.append(prop[0], prop[1]);
  });
  return userCallMethod({
    url,
    token,
    method,
    body
  });
};

/* :: 
import * as t from '../types'
import * as a from './apiTypes'
import * as r from '../returnTypes'
*/
class BotCore {
  /**
   * getUpdates
   *
   * Use this method to receive incoming updates using long polling (wiki). An
   * Array of Update objects is returned.
   */
  getUpdates(props = {}) {
    return callMethod(this, 'getUpdates', props);
  }
  /**
   * setWebhook
   *
   * Use this method to specify a url and receive incoming updates via an
   * outgoing webhook. Whenever there is an update for the bot, we will send an
   * HTTPS POST request to the specified url, containing a JSON-serialized
   * Update. In case of an unsuccessful request, we will give up after a
   * reasonable amount of attempts. Returns True on success.
   *
   * If you'd like to make sure that the Webhook request comes from Telegram,
   * we recommend using a secret path in the URL, e.g.
   * https://www.example.com/<token>. Since nobody else knows your bot‘s token,
   * you can be pretty sure it’s us.
   */


  setWebhook(props) {
    return callMethod(this, 'setWebhook', props);
  }
  /**
   * deleteWebhook
   *
   * Use this method to remove webhook integration if you decide to switch back
   * to getUpdates. Returns True on success. Requires no parameters.
   */


  deleteWebhook() {
    return callMethod(this, 'deleteWebhook');
  }
  /**
   * getWebhookInfo
   *
   * Use this method to get current webhook status. Requires no parameters. On
   * success, returns a WebhookInfo object. If the bot is using getUpdates,
   * will return an object with the url field empty.
   */


  getWebhookInfo() {
    return callMethod(this, 'getWebhookInfo');
  }
  /**
   * getMe
   *
   * A simple method for testing your bot's auth token. Requires no parameters.
   * Returns basic information about the bot in form of a User object.
   */


  getMe() {
    return callMethod(this, 'getMe');
  }
  /**
   * sendMessage
   *
   * Use this method to send text messages. On success, the sent Message is
   * returned.
   */


  sendMessage(props) {
    return callMethod(this, 'sendMessage', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * forwardMessage
   *
   * Use this method to forward messages of any kind. On success, the sent
   * Message is returned.
   */


  forwardMessage(props) {
    return callMethod(this, 'forwardMessage', props);
  }
  /**
   * sendPhoto
   *
   * Use this method to send photos. On success, the sent Message is returned.
   */


  sendPhoto(props) {
    return callMethod(this, 'sendPhoto', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * sendAudio
   *
   * Use this method to send audio files, if you want Telegram clients to
   * display them in the music player. Your audio must be in the .mp3 format.
   * On success, the sent Message is returned. Bots can currently send audio
   * files of up to 50 MB in size, this limit may be changed in the future.
   *
   * For sending voice messages, use the sendVoice method instead.
   */


  sendAudio(props) {
    return callMethod(this, 'sendAudio', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * sendDocument
   *
   * Use this method to send general files. On success, the sent Message is
   * returned. Bots can currently send files of any type of up to 50 MB in
   * size, this limit may be changed in the future.
   */


  sendDocument(props) {
    return callMethod(this, 'sendDocument', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * sendVideo
   *
   * Use this method to send video files, Telegram clients support mp4 videos
   * (other formats may be sent as Document). On success, the sent Message is
   * returned. Bots can currently send video files of up to 50 MB in size, this
   * limit may be changed in the future.
   */


  sendVideo(props) {
    return callMethod(this, 'sendVideo', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * sendAnimation
   *
   * Use this method to send animation files (GIF or H.264/MPEG-4 AVC video
   * without sound). On success, the sent Message is returned. Bots can
   * currently send animation files of up to 50 MB in size, this limit may be
   * changed in the future.
   */


  sendAnimation(props) {
    return callMethod(this, 'sendAnimation', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * sendVoice
   *
   * Use this method to send audio files, if you want Telegram clients to
   * display the file as a playable voice message. For this to work, your audio
   * must be in an .ogg file encoded with OPUS (other formats may be sent as
   * Audio or Document). On success, the sent Message is returned. Bots can
   * currently send voice messages of up to 50 MB in size, this limit may be
   * changed in the future.
   */


  sendVoice(props) {
    return callMethod(this, 'sendVoice', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * sendVideoNote
   *
   * As of v.4.0, Telegram clients support rounded square mp4 videos of up to 1
   * minute long. Use this method to send video messages. On success, the sent
   * Message is returned.
   */


  sendVideoNote(props) {
    return callMethod(this, 'sendVideoNote', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * sendMediaGroup
   *
   * Use this method to send a group of photos or videos as an album. On
   * success, an array of the sent Messages is returned.
   */


  sendMediaGroup(props) {
    return callMethod(this, 'sendMediaGroup', { ...props,
      media: props.media && JSON.stringify(props.media)
    });
  }
  /**
   * sendLocation
   *
   * Use this method to send point on the map. On success, the sent Message is
   * returned.
   */


  sendLocation(props) {
    return callMethod(this, 'sendLocation', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * editMessageLiveLocation
   *
   * Use this method to edit live location messages sent by the bot or via the
   * bot (for inline bots). A location can be edited until its live_period
   * expires or editing is explicitly disabled by a call to
   * stopMessageLiveLocation. On success, if the edited message was sent by the
   * bot, the edited Message is returned, otherwise True is returned.
   */


  editMessageLiveLocation(props) {
    return callMethod(this, 'editMessageLiveLocation', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * stopMessageLiveLocation
   *
   * Use this method to stop updating a live location message sent by the bot
   * or via the bot (for inline bots) before live_period expires. On success,
   * if the message was sent by the bot, the sent Message is returned,
   * otherwise True is returned.
   */


  stopMessageLiveLocation(props = {}) {
    return callMethod(this, 'stopMessageLiveLocation', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * sendVenue
   *
   * Use this method to send information about a venue. On success, the sent
   * Message is returned.
   */


  sendVenue(props) {
    return callMethod(this, 'sendVenue', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * sendContact
   *
   * Use this method to send phone contacts. On success, the sent Message is
   * returned.
   */


  sendContact(props) {
    return callMethod(this, 'sendContact', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * sendChatAction
   *
   * Use this method when you need to tell the user that something is happening
   * on the bot's side. The status is set for 5 seconds or less (when a message
   * arrives from your bot, Telegram clients clear its typing status). Returns
   * True on success.
   *
   * We only recommend using this method when a response from the bot will take
   * a noticeable amount of time to arrive.
   */


  sendChatAction(props) {
    return callMethod(this, 'sendChatAction', props);
  }
  /**
   * getUserProfilePhotos
   *
   * Use this method to get a list of profile pictures for a user. Returns a
   * UserProfilePhotos object.
   */


  getUserProfilePhotos(props) {
    return callMethod(this, 'getUserProfilePhotos', props);
  }
  /**
   * getFile
   *
   * Use this method to get basic info about a file and prepare it for
   * downloading. For the moment, bots can download files of up to 20MB in
   * size. On success, a File object is returned. The file can then be
   * downloaded via the link
   * https://api.telegram.org/file/bot<token>/<file_path>, where <file_path> is
   * taken from the response. It is guaranteed that the link will be valid for
   * at least 1 hour. When the link expires, a new one can be requested by
   * calling getFile again.
   */


  getFile(props) {
    return callMethod(this, 'getFile', props);
  }
  /**
   * kickChatMember
   *
   * Use this method to kick a user from a group, a supergroup or a channel. In
   * the case of supergroups and channels, the user will not be able to return
   * to the group on their own using invite links, etc., unless unbanned first.
   * The bot must be an administrator in the chat for this to work and must
   * have the appropriate admin rights. Returns True on success.
   */


  kickChatMember(props) {
    return callMethod(this, 'kickChatMember', props);
  }
  /**
   * unbanChatMember
   *
   * Use this method to unban a previously kicked user in a supergroup or
   * channel. The user will not return to the group or channel automatically,
   * but will be able to join via link, etc. The bot must be an administrator
   * for this to work. Returns True on success.
   */


  unbanChatMember(props) {
    return callMethod(this, 'unbanChatMember', props);
  }
  /**
   * restrictChatMember
   *
   * Use this method to restrict a user in a supergroup. The bot must be an
   * administrator in the supergroup for this to work and must have the
   * appropriate admin rights. Pass True for all boolean parameters to lift
   * restrictions from a user. Returns True on success.
   */


  restrictChatMember(props) {
    return callMethod(this, 'restrictChatMember', props);
  }
  /**
   * promoteChatMember
   *
   * Use this method to promote or demote a user in a supergroup or a channel.
   * The bot must be an administrator in the chat for this to work and must
   * have the appropriate admin rights. Pass False for all boolean parameters
   * to demote a user. Returns True on success.
   */


  promoteChatMember(props) {
    return callMethod(this, 'promoteChatMember', props);
  }
  /**
   * exportChatInviteLink
   *
   * Use this method to generate a new invite link for a chat; any previously
   * generated link is revoked. The bot must be an administrator in the chat
   * for this to work and must have the appropriate admin rights. Returns the
   * new invite link as String on success.
   */


  exportChatInviteLink(props) {
    return callMethod(this, 'exportChatInviteLink', props);
  }
  /**
   * setChatPhoto
   *
   * Use this method to set a new profile photo for the chat. Photos can't be
   * changed for private chats. The bot must be an administrator in the chat
   * for this to work and must have the appropriate admin rights. Returns True
   * on success.
   */


  setChatPhoto(props) {
    return callMethod(this, 'setChatPhoto', props);
  }
  /**
   * deleteChatPhoto
   *
   * Use this method to delete a chat photo. Photos can't be changed for
   * private chats. The bot must be an administrator in the chat for this to
   * work and must have the appropriate admin rights. Returns True on success.
   */


  deleteChatPhoto(props) {
    return callMethod(this, 'deleteChatPhoto', props);
  }
  /**
   * setChatTitle
   *
   * Use this method to change the title of a chat. Titles can't be changed for
   * private chats. The bot must be an administrator in the chat for this to
   * work and must have the appropriate admin rights. Returns True on success.
   */


  setChatTitle(props) {
    return callMethod(this, 'setChatTitle', props);
  }
  /**
   * setChatDescription
   *
   * Use this method to change the description of a supergroup or a channel.
   * The bot must be an administrator in the chat for this to work and must
   * have the appropriate admin rights. Returns True on success.
   */


  setChatDescription(props) {
    return callMethod(this, 'setChatDescription', props);
  }
  /**
   * pinChatMessage
   *
   * Use this method to pin a message in a supergroup or a channel. The bot
   * must be an administrator in the chat for this to work and must have the
   * ‘can_pin_messages’ admin right in the supergroup or ‘can_edit_messages’
   * admin right in the channel. Returns True on success.
   */


  pinChatMessage(props) {
    return callMethod(this, 'pinChatMessage', props);
  }
  /**
   * unpinChatMessage
   *
   * Use this method to unpin a message in a supergroup or a channel. The bot
   * must be an administrator in the chat for this to work and must have the
   * ‘can_pin_messages’ admin right in the supergroup or ‘can_edit_messages’
   * admin right in the channel. Returns True on success.
   */


  unpinChatMessage(props) {
    return callMethod(this, 'unpinChatMessage', props);
  }
  /**
   * leaveChat
   *
   * Use this method for your bot to leave a group, supergroup or channel.
   * Returns True on success.
   */


  leaveChat(props) {
    return callMethod(this, 'leaveChat', props);
  }
  /**
   * getChat
   *
   * Use this method to get up to date information about the chat (current name
   * of the user for one-on-one conversations, current username of a user,
   * group or channel, etc.). Returns a Chat object on success.
   */


  getChat(props) {
    return callMethod(this, 'getChat', props);
  }
  /**
   * getChatAdministrators
   *
   * Use this method to get a list of administrators in a chat. On success,
   * returns an Array of ChatMember objects that contains information about all
   * chat administrators except other bots. If the chat is a group or a
   * supergroup and no administrators were appointed, only the creator will be
   * returned.
   */


  getChatAdministrators(props) {
    return callMethod(this, 'getChatAdministrators', props);
  }
  /**
   * getChatMembersCount
   *
   * Use this method to get the number of members in a chat. Returns Int on
   * success.
   */


  getChatMembersCount(props) {
    return callMethod(this, 'getChatMembersCount', props);
  }
  /**
   * getChatMember
   *
   * Use this method to get information about a member of a chat. Returns a
   * ChatMember object on success.
   */


  getChatMember(props) {
    return callMethod(this, 'getChatMember', props);
  }
  /**
   * setChatStickerSet
   *
   * Use this method to set a new group sticker set for a supergroup. The bot
   * must be an administrator in the chat for this to work and must have the
   * appropriate admin rights. Use the field can_set_sticker_set optionally
   * returned in getChat requests to check if the bot can use this method.
   * Returns True on success.
   */


  setChatStickerSet(props) {
    return callMethod(this, 'setChatStickerSet', props);
  }
  /**
   * deleteChatStickerSet
   *
   * Use this method to delete a group sticker set from a supergroup. The bot
   * must be an administrator in the chat for this to work and must have the
   * appropriate admin rights. Use the field can_set_sticker_set optionally
   * returned in getChat requests to check if the bot can use this method.
   * Returns True on success.
   */


  deleteChatStickerSet(props) {
    return callMethod(this, 'deleteChatStickerSet', props);
  }
  /**
   * answerCallbackQuery
   *
   * Use this method to send answers to callback queries sent from inline
   * keyboards. The answer will be displayed to the user as a notification at
   * the top of the chat screen or as an alert. On success, True is returned.
   */


  answerCallbackQuery(props) {
    return callMethod(this, 'answerCallbackQuery', props);
  }
  /**
   * editMessageText
   *
   * Use this method to edit text and game messages sent by the bot or via the
   * bot (for inline bots). On success, if edited message is sent by the bot,
   * the edited Message is returned, otherwise True is returned.
   */


  editMessageText(props) {
    return callMethod(this, 'editMessageText', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * editMessageCaption
   *
   * Use this method to edit captions of messages sent by the bot or via the
   * bot (for inline bots). On success, if edited message is sent by the bot,
   * the edited Message is returned, otherwise True is returned.
   */


  editMessageCaption(props = {}) {
    return callMethod(this, 'editMessageCaption', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * editMessageMedia
   *
   * Use this method to edit animation, audio, document, photo, or video
   * messages. If a message is a part of a message album, then it can be edited
   * only to a photo or a video. Otherwise, message type can be changed
   * arbitrarily. When inline message is edited, new file can't be uploaded.
   * Use previously uploaded file via its file_id or specify a URL. On success,
   * if the edited message was sent by the bot, the edited Message is returned,
   * otherwise True is returned.
   */


  editMessageMedia(props) {
    return callMethod(this, 'editMessageMedia', { ...props,
      media: props.media && JSON.stringify(props.media),
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * editMessageReplyMarkup
   *
   * Use this method to edit only the reply markup of messages sent by the bot
   * or via the bot (for inline bots).  On success, if edited message is sent
   * by the bot, the edited Message is returned, otherwise True is returned.
   */


  editMessageReplyMarkup(props = {}) {
    return callMethod(this, 'editMessageReplyMarkup', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * deleteMessage
   *
   * Use this method to delete a message, including service messages, with the
   * following limitations:
   *
   * - A message can only be deleted if it was sent less than 48 hours ago.
   *
   * - Bots can delete outgoing messages in private chats, groups, and
   * supergroups.
   *
   * - Bots granted can_post_messages permissions can delete outgoing messages
   * in channels.
   *
   * - If the bot is an administrator of a group, it can delete any message
   * there.
   *
   * - If the bot has can_delete_messages permission in a supergroup or a
   * channel, it can delete any message there.
   *
   * Returns True on success.
   */


  deleteMessage(props) {
    return callMethod(this, 'deleteMessage', props);
  }
  /**
   * sendSticker
   *
   * Use this method to send .webp stickers. On success, the sent Message is
   * returned.
   */


  sendSticker(props) {
    return callMethod(this, 'sendSticker', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * getStickerSet
   *
   * Use this method to get a sticker set. On success, a StickerSet object is
   * returned.
   */


  getStickerSet(props) {
    return callMethod(this, 'getStickerSet', props);
  }
  /**
   * uploadStickerFile
   *
   * Use this method to upload a .png file with a sticker for later use in
   * createNewStickerSet and addStickerToSet methods (can be used multiple
   * times). Returns the uploaded File on success.
   */


  uploadStickerFile(props) {
    return callMethod(this, 'uploadStickerFile', props);
  }
  /**
   * createNewStickerSet
   *
   * Use this method to create new sticker set owned by a user. The bot will be
   * able to edit the created sticker set. Returns True on success.
   */


  createNewStickerSet(props) {
    return callMethod(this, 'createNewStickerSet', { ...props,
      mask_position: props.mask_position && JSON.stringify(props.mask_position)
    });
  }
  /**
   * addStickerToSet
   *
   * Use this method to add a new sticker to a set created by the bot. Returns
   * True on success.
   */


  addStickerToSet(props) {
    return callMethod(this, 'addStickerToSet', { ...props,
      mask_position: props.mask_position && JSON.stringify(props.mask_position)
    });
  }
  /**
   * setStickerPositionInSet
   *
   * Use this method to move a sticker in a set created by the bot to a
   * specific position . Returns True on success.
   */


  setStickerPositionInSet(props) {
    return callMethod(this, 'setStickerPositionInSet', props);
  }
  /**
   * deleteStickerFromSet
   *
   * Use this method to delete a sticker from a set created by the bot. Returns
   * True on success.
   */


  deleteStickerFromSet(props) {
    return callMethod(this, 'deleteStickerFromSet', props);
  }
  /**
   * answerInlineQuery
   *
   * Use this method to send answers to an inline query. On success, True is
   * returned.
   *
   * No more than 50 results per query are allowed.
   */


  answerInlineQuery(props) {
    return callMethod(this, 'answerInlineQuery', { ...props,
      results: props.results && JSON.stringify(props.results)
    });
  }
  /**
   * sendInvoice
   *
   * Use this method to send invoices. On success, the sent Message is returned.
   */


  sendInvoice(props) {
    return callMethod(this, 'sendInvoice', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * answerShippingQuery
   *
   * If you sent an invoice requesting a shipping address and the parameter
   * is_flexible was specified, the Bot API will send an Update with a
   * shipping_query field to the bot. Use this method to reply to shipping
   * queries. On success, True is returned.
   */


  answerShippingQuery(props) {
    return callMethod(this, 'answerShippingQuery', { ...props,
      shipping_options: props.shipping_options && JSON.stringify(props.shipping_options)
    });
  }
  /**
   * answerPreCheckoutQuery
   *
   * Once the user has confirmed their payment and shipping details, the Bot
   * API sends the final confirmation in the form of an Update with the field
   * pre_checkout_query. Use this method to respond to such pre-checkout
   * queries. On success, True is returned. Note: The Bot API must receive an
   * answer within 10 seconds after the pre-checkout query was sent.
   */


  answerPreCheckoutQuery(props) {
    return callMethod(this, 'answerPreCheckoutQuery', props);
  }
  /**
   * setPassportDataErrors
   *
   * Informs a user that some of the Telegram Passport elements they provided
   * contains errors. The user will not be able to re-submit their Passport to
   * you until the errors are fixed (the contents of the field for which you
   * returned the error must change). Returns True on success.
   *
   * Use this if the data submitted by the user doesn't satisfy the standards
   * your service requires for any reason. For example, if a birthday date
   * seems invalid, a submitted document is blurry, a scan shows evidence of
   * tampering, etc. Supply some details in the error message to make sure the
   * user knows how to correct the issues.
   */


  setPassportDataErrors(props) {
    return callMethod(this, 'setPassportDataErrors', { ...props,
      errors: props.errors && JSON.stringify(props.errors)
    });
  }
  /**
   * sendGame
   *
   * Use this method to send a game. On success, the sent Message is returned.
   */


  sendGame(props) {
    return callMethod(this, 'sendGame', { ...props,
      reply_markup: props.reply_markup && JSON.stringify(props.reply_markup)
    });
  }
  /**
   * setGameScore
   *
   * Use this method to set the score of the specified user in a game. On
   * success, if the message was sent by the bot, returns the edited Message,
   * otherwise returns True. Returns an error, if the new score is not greater
   * than the user's current score in the chat and force is False.
   */


  setGameScore(props) {
    return callMethod(this, 'setGameScore', props);
  }
  /**
   * getGameHighScores
   *
   * Use this method to get data for high score tables. Will return the score
   * of the specified user and several of his neighbors in a game. On success,
   * returns an Array of GameHighScore objects.
   */


  getGameHighScores(props) {
    return callMethod(this, 'getGameHighScores', props);
  }

}

const [getConnected, setConnected] = getSet('connected');

const getOnUpdate = next => {
  if (typeof next == 'function') return next;
  if (next && next.next) return value => next.next(value);
};

const getOnError = (next, error) => {
  if (typeof next == 'object' && next.error) {
    return err => next.error(err);
  }

  return error;
};

class Subscriber extends EventEmitter {
  constructor() {
    super();
    this.connect();
  }

  disconnect() {
    setConnected(this, false);
    return this;
  }

  connect() {
    setConnected(this, true);
    return this;
  }
  /* ::
  +subscribe: ((
    next?: (Update) => mixed,
    error?: (Error) => mixed,
  ) => Subscription) &
    ((observer: Observer<Update>) => Subscription)
  */


  subscribe(next, error) {
    const onUpdate = getOnUpdate(next);
    const onError = getOnError(next, error);
    if (onUpdate) this.on('update', onUpdate);
    if (onError) this.on('error', onError);
    return {
      unsubscribe: () => {
        if (onUpdate) this.removeListener('update', onUpdate);
        if (onError) this.removeListener('error', onError);
      }
    };
  } // $FlowFixMe


  [$$observable]() {
    return this;
  }

}

const [getLastId, setLastId] = getSet('lastId');
const [getOptions, setOptions] = getSet('options');
const events = ['message', 'edited_message', 'channel_post', 'edited_channel_post', 'inline_query', 'chosen_inline_result', 'callback_query', 'shipping_query', 'pre_checkout_query'];

const getUpdates = emitter => {
  if (!getConnected(emitter)) return;
  const {
    limit,
    timeout,
    allowedUpdates
  } = getOptions(emitter);
  getOptions(emitter).bot.getUpdates({
    limit,
    timeout,
    offset: getLastId(emitter) + 1,
    allowed_updates: allowedUpdates
  }).then(response => {
    if (!response.ok) {
      return Promise.reject(new Error(`${response.error_code}: ${response.description}`));
    }

    if (!response.result.length) return;
    const updates = response.result;
    setLastId(emitter, updates[updates.length - 1].update_id);
    updates.forEach(update => {
      emitter.emit('update', update);
      events.forEach(eventName => update[eventName] && emitter.emit(eventName, update[eventName]));
    });
    return getUpdates(emitter);
  }).catch(error => emitter.emit('error', error));
};

class PollingSubscriber extends Subscriber {
  constructor({
    allowedUpdates,
    ...options
  }) {
    super();
    setLastId(this, -1);
    setOptions(this, { ...options,
      allowedUpdates: allowedUpdates && [...allowedUpdates]
    });
  }

  get bot() {
    return getOptions(this).bot;
  }

  setLimit(limit) {
    getOptions(this).limit = limit;
    return this;
  }

  setTimeout(timeout) {
    getOptions(this).timeout = timeout;
    return this;
  }

  setAllowedUpdates(allowedUpdates) {
    getOptions(this).allowedUpdates = allowedUpdates && [...allowedUpdates];
    return this;
  }

  connect() {
    super.connect();
    Promise.resolve(this).then(getUpdates);
    return this;
  }

}

const json = res => res.json();

const callMethod$1 = request => fetch(request.url, {
  method: 'POST',
  body: request.body
}).then(json);

class Bot extends BotCore {
  constructor(config) {
    super();

    if (typeof config == 'string') {
      setToken(this, config);
      setUserCallMethod(this, callMethod$1);
    } else {
      setToken(this, config.token);
      setUserCallMethod(this, config.callMethod || callMethod$1);
    }
  }

  setToken(token) {
    setToken(this, token);
    return this;
  }

  get token() {
    return getToken(this);
  }

  polling(options = {}) {
    return new PollingSubscriber({ ...options,
      bot: this
    });
  }

}

export { Bot };