﻿from flask import (
    flash,
    render_template,
    redirect,
    request,
    session,
    url_for,
)
from twilio.twiml.voice_response import VoiceResponse

from ivr_phone_tree_python import app
from ivr_phone_tree_python.view_helpers import twiml


@app.route('/')
@app.route('/ivr')
def home():
    return render_template('index.html')


@app.route('/ivr/welcome', methods=['POST'])
def welcome():
    response = VoiceResponse()
    with response.gather(
        num_digits=1, action=url_for('menu'), method="POST"
    ) as g:
        g.say(message="Thanks for calling the E T Phone Home Service. " +
              "Please press 1 for directions." +
              "Press 2 for a list of planets to call.", loop=3)
    return twiml(response)


@app.route('/ivr/menu', methods=['POST'])
def menu():
    selected_option = request.form['Digits']
    option_actions = {'1': _give_instructions,
                      '2': _list_planets}

    if option_actions.has_key(selected_option):
        response = VoiceResponse()
        option_actions[selected_option](response)
        return twiml(response)

    return _redirect_welcome()


@app.route('/ivr/planets', methods=['POST'])
def planets():
    selected_option = request.form['Digits']
    option_actions = {'2': "+12024173378",
                      '3': "+12027336386",
                      "4": "+12027336637"}

    if selected_option in option_actions:
        response = VoiceResponse()
        response.dial(option_actions[selected_option])
        return twiml(response)

    return _redirect_welcome()


# private methods

def _give_instructions(response):
    response.say("To get to your extraction point, get on your bike and go " +
                 "down the street. Then Left down an alley. Avoid the police" +
                 " cars. Turn left into an unfinished housing development." +
                 "Fly over the roadblock. Go past the moon. Soon after " +
                 "you will see your mother ship.",
                 voice="alice", language="en-GB")

    response.say("Thank you for calling the E T Phone Home Service - the " +
                 "adventurous alien's first choice in intergalactic travel")

    response.hangup()
    return response


def _list_planets(response):
    with response.gather(
        numDigits=1, action=url_for('planets'), method="POST"
    ) as g:
        g.say("To call the planet Broh doe As O G, press 2. To call the " +
              "planet DuhGo bah, press 3. To call an oober asteroid " +
              "to your location, press 4. To go back to the main menu " +
              " press the star key.",
              voice="alice", language="en-GB", loop=3)

    return response


def _redirect_welcome():
    response = VoiceResponse()
    response.say("Returning to the main menu", voice="alice", language="en-GB")
    response.redirect(url_for('welcome'))

    return twiml(response)
