import Base from './Base'; import mime from 'mime'; const TYPES = ['photo', 'video', 'document', 'audio']; /** * File class, used to send pictures/movies/audios/documents to chat */ export default class File extends Base { /** * Create a new file instance * @param {object} properties File properties, as defined by Telegram API */ constructor(properties = {}) { super('sendDocument'); this.properties = properties; this._keyboard = new Base(); } /** * Set chat_id of the message * @param {number} chat * @return {object} returns the message object */ to(chat) { this.properties.chat_id = chat; return this; } /** * Set file of the message * @param {string} file File path * @param {string} fileType (optional) if the first argument is a * file_id string, this option indicates file type * @return {object} returns the message object */ file(file, fileType) { if (fileType) { this.properties[fileType] = {file: file}; return this; } let [type, extension] = mime.lookup(file).split('/'); if (type === 'image') { type = 'photo'; } if (extension === 'gif') { type = 'document'; } if (TYPES.indexOf(type) === -1) { type = 'document'; } this.properties[type] = {file: file}; this.method = `send${type[0].toUpperCase() + type.slice(1)}`; return this; } /** * Set caption for photos * @param {string} text caption's text * @return {object} returns the message object */ caption(text) { this.properties.caption = text; return this; } /** * Set reply_to_message_id of the message * @param {number} id message_id of the message to reply to * @return {object} returns the message object */ reply(id) { this.properties.reply_to_message_id = id; return this; } /** * Sets keyboard of the message * The value of reply_markup is set to the sanitized keyboard properties * i.e. reply_markup = JSON.stringify(kb.getProperties()) * @param {object} kb A Keyboard instance * @return {object} returns the message object */ keyboard(kb) { this._keyboard = kb; return this; } // This class inherits Base's send method }