bot.py

#! /usr/bin/env python
# -*- coding: utf-8 -*-
"""Main chatbot script.
A server is implemented to dispatch user requests.
"""

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function

import os

from pprint import pprint
from flask import Flask, request
from architecture.modules.dispatcher import ResponseDispatcher
from architecture.structures.fsm import FSM
from architecture.structures.states import InitState
from architecture.actuators.messaging import send_message

app = Flask(__name__)
DISPATCHER = ResponseDispatcher()
MACHINE = None

@app.route('/', methods=['GET'])
def verify():
    """
    when the endpoint is registered as a webhook, it must echo back
    the 'hub.challenge' value it receives in the query arguments
    """
    if request.args.get('hub.mode') == 'subscribe' and request.args.get('hub.challenge'):
        if not request.args.get('hub.verify_token') == os.environ['VERIFY_TOKEN']:
            return 'Verification token mismatch', 403
        return request.args['hub.challenge'], 200

    print('Hello world')
    return 'Hello world', 200

@app.route('/', methods=['POST'])
def webhook():
    """
    Endpoint for processing incoming messaging events
    """
    global DISPATCHER, MACHINE
    data = request.get_json()
    pprint(data)
    parsed = DISPATCHER.dispatch(data)
    pprint(parsed)
    
    #try:
    if MACHINE is None:
        MACHINE = FSM(InitState(parsed['CONTEXT']['user_id'],
                                    parsed))
    MACHINE.run()
    MACHINE.transition(parsed)
    #except:
        # Botón de "Empezar" seleccionado
    #print('EMPEZAR')
    #send_message(parsed['CONTEXT']['user_id'], 'Hola!!!!')

    return 'ok', 200

if __name__ == '__main__':
    app.run(debug=True, host='0.0.0.0', port=5500)