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220 lines (171 loc) · 7.89 KB
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# -*- coding: utf-8 -*-
# This sample demonstrates handling intents from an Alexa skill and using the
# Alexa Skills Kid SDK (v2)
# Please visit https://alexa.design/cookbook for additional examples on
# implementing slots, dialog management,
# session persistence, api calls, and more.
import requests
import logging
import calendar
from datetime import datetime
from pytz import timezone
from ask_sdk_s3.adapter import S3Adapter
from ask_sdk_core.skill_builder import CustomSkillBuilder
from ask_sdk_core.dispatch_components import (
AbstractRequestHandler, AbstractExceptionHandler
)
from ask_sdk_core.utils import is_request_type, is_intent_name
s3_adapter = S3Adapter(bucket_name="custom-walk-testing")
sb = CustomSkillBuilder(persistence_adapter=s3_adapter)
logger = logging.getLogger("main")
logger.setLevel(logging.INFO)
class LaunchRequestIntentHandler(AbstractRequestHandler):
"""
Handler for Skill Launch
"""
def can_handle(self, handler_input):
return is_request_type("LaunchRequest")(handler_input)
def handle(self, handler_input):
speech = "Hello! Welcome to Cake Time. What is your birthday?"
reprompt = "I was born Nov. 6th, 2015. When were you born?"
handler_input.response_builder.speak(speech).ask(reprompt)
return handler_input.response_builder.response
class HasBirthdayLaunchRequestHandler(AbstractRequestHandler):
"""
Handler for launch after they have set their birthday
"""
def can_handle(self, handler_input):
# extract persistent attributes and check if they are all present
attr = handler_input.attributes_manager.persistent_attributes
attributes_are_present = ("year" in attr and "month" in attr and "day" in attr)
return attributes_are_present and is_request_type("LaunchRequest")(handler_input)
def handle(self, handler_input):
attr = handler_input.attributes_manager.persistent_attributes
year = int(attr['year'])
month = attr['month'] # month is a string, and we need to convert it to a month index later
day = int(attr['day'])
# get device id / timezones
sys_object = handler_input.request_envelope.context.system
# get systems api information
api_endpoint = sys_object.api_endpoint
device_id = sys_object.device.device_id
api_access_token = sys_object.api_access_token
# construct systems api timezone url
url = '{api_endpoint}/v2/devices/{device_id}/settings/System.timeZone'.format(api_endpoint=api_endpoint, device_id=device_id)
headers = {'Authorization': 'Bearer ' + api_access_token}
userTimeZone = ""
try:
r = requests.get(url, headers=headers)
res = r.json()
logger.info("Device API result: {}".format(str(res)))
userTimeZone = res
except Exception:
handler_input.response_builder.speak("There was a problem connecting to the service")
return handler_input.response_builder.response
# getting the current date with the time
now_time = datetime.now(timezone(userTimeZone))
# Removing the time from the date because it affects our difference calculation
now_date = datetime(now_time.year, now_time.month, now_time.day)
current_year = now_time.year
# getting the next birthday
month_as_index = list(calendar.month_abbr).index(month[:3].title())
next_birthday = datetime(current_year, month_as_index, day)
# check if we need to adjust bday by one year
if now_date > next_birthday:
next_birthday = datetime(
current_year + 1,
month_as_index,
day
)
current_year += 1
# setting the default speak_output to Happy xth Birthday!!
# alexa will automatically correct the oridinal for you.
# no need to worry about when to use st, th, rd
speak_output = "Happy {}th birthday!".format(str(current_year - year))
if now_date != next_birthday:
diff_days = abs((now_date - next_birthday).days)
speak_output = "Welcome back. It looks like there are \
{days} days until your {birthday_num}th\
birthday".format(
days=diff_days,
birthday_num=(current_year-year)
)
handler_input.response_builder.speak(speak_output)
return handler_input.response_builder.response
class BirthdayIntentHandler(AbstractRequestHandler):
"""
Handler for Capturing the Birthday
"""
def can_handle(self, handler_input):
return is_intent_name("CaptureBirthdayIntent")(handler_input)
def handle(self, handler_input):
slots = handler_input.request_envelope.request.intent.slots
# extract slot values
year = slots["year"].value
month = slots["month"].value
day = slots["day"].value
# save slots into session attributes
session_attr = handler_input.attributes_manager.session_attributes
session_attr['year'] = year
session_attr['month'] = month
session_attr['day'] = day
# save session attributes as persistent attributes
handler_input.attributes_manager.persistent_attributes = session_attr
handler_input.attributes_manager.save_persistent_attributes()
speech = 'Thanks, I will remember that you were born {month} {day} {year} \
'.format(month=month, day=day, year=year)
handler_input.response_builder.speak(speech)
return handler_input.response_builder.response
class HelpIntentHandler(AbstractRequestHandler):
"""
Handler for AMAZON.HelpIntent
"""
def can_handle(self, handler_input):
return is_intent_name("AMAZON.HelpIntent")(handler_input)
def handle(self, handler_input):
speak_output = "You can say hello to me! How can I help?"
handler_input.response_builder.speak(
speak_output
).ask(speak_output)
return handler_input.response_builder.response
class CatchAllExceptionHandler(AbstractExceptionHandler):
"""
Catch all exception handler, log exception and
respond with custom message.
"""
def can_handle(self, handler_input, exception):
return True
def handle(self, handler_input, exception):
speak_output = "Sorry, I couldn't understand what you said. Please try again."
handler_input.response_builder.speak(speak_output).ask(speak_output)
return handler_input.response_builder.response
class CancelAndStopIntentHandler(AbstractRequestHandler):
"""
Handler for AMAZON.CancelIntent and AMAZON.StopIntent
"""
def can_handle(self, handler_input):
return is_intent_name("AMAZON.CancelIntent")(handler_input) \
and is_intent_name("AMAZON.StopIntent")(handler_input)
def handle(self, handler_input):
speak_output = "Goodbye!"
handler_input.response_builder.speak(speak_output)
return handler_input.response_builder.response
class SessionEndedRequestHandler(AbstractRequestHandler):
"""
Handler for SessionEndedRequest
"""
def can_handle(self, handler_input):
return is_request_type("SessionEndedRequest")(handler_input)
def handle(self, handler_input):
# Any cleanup logic goes here
return handler_input.response_builder.response
# register request / intent handlers
sb.add_request_handler(HasBirthdayLaunchRequestHandler())
sb.add_request_handler(LaunchRequestIntentHandler())
sb.add_request_handler(BirthdayIntentHandler())
sb.add_request_handler(HelpIntentHandler())
sb.add_request_handler(CancelAndStopIntentHandler())
sb.add_request_handler(SessionEndedRequestHandler())
# register exception handlers
sb.add_exception_handler(CatchAllExceptionHandler())
lambda_handler = sb.lambda_handler()