node-red-contrib-chatbot
Version:
REDBot a Chat bot for a full featured chat bot for Telegram, Facebook Messenger and Slack. Almost no coding skills required
77 lines (68 loc) • 2.68 kB
JavaScript
const emoji = require('node-emoji');
const _ = require('underscore');
const { ChatExpress } = require('chat-platform');
const MessageTemplate = require('../lib/message-template-async');
const RegisterType = require('../lib/node-installer');
const GlobalContextHelper = require('../lib/helpers/global-context-helper');
const {
isValidMessage,
getChatId,
getMessageId,
getTransport,
extractValue,
appendPayload
} = require('../lib/helpers/utils');
module.exports = function(RED) {
const registerType = RegisterType(RED);
const globalContextHelper = GlobalContextHelper(RED);
function ChatBotAsk(config) {
RED.nodes.createNode(this, config);
const node = this;
globalContextHelper.init(this.context().global);
this.buttons = config.buttons;
this.message = config.message;
this.isPersistent = config.isPersistent;
this.oneTimeKeyboard = config.oneTimeKeyboard;
this.placeholder = config.placeholder;
this.on('input', function(msg, send, done) {
// send/done compatibility for node-red < 1.0
send = send || function() { node.send.apply(node, arguments) };
done = done || function(error) { node.error.call(node, error, msg) };
const sendPayload = appendPayload(send, msg);
// check if valid message
if (!isValidMessage(msg, node)) {
return;
}
// get config
const chatId = getChatId(msg);
const messageId = getMessageId(msg);
const transport = getTransport(msg);
const template = MessageTemplate(msg, node);
// check transport compatibility
if (!ChatExpress.isSupported(transport, 'telegram-buttons')) {
done(`Node "Buttons" is not supported by ${transport} transport`);
return;
}
const buttons = extractValue('buttons', 'buttons', node, msg, true);
const message = extractValue('string', 'message', node, msg, false);
const isPersistent = extractValue('boolean', 'isPersistent', node, msg, true);
const oneTimeKeyboard = extractValue('boolean', 'oneTimeKeyboard', node, msg, true);
const placeholder = extractValue('string', 'placeholder', node, msg, true);
// template then send
template(message)
.then(function(translated) {
sendPayload({
type: _.isEmpty(buttons) ? 'telegram-reset-buttons': 'telegram-buttons',
content: message != null ? emoji.emojify(translated) : null,
chatId: chatId,
messageId: messageId,
buttons: buttons,
isPersistent,
oneTimeKeyboard,
placeholder
});
});
});
}
registerType('chatbot-ask', ChatBotAsk);
};