# -*- coding: utf-8 -*- # This sample demonstrates handling intents from an Alexa skill using the Alexa Skills Kit SDK for Python. # Please visit https://alexa.design/cookbook for additional examples on implementing slots, dialog management, # session persistence, api calls, and more. # This sample is built using the handler classes approach in skill builder. import logging import ask_sdk_core.utils as ask_utils import os import requests import calendar from datetime import datetime from pytz import timezone from ask_sdk_s3.adapter import S3Adapter s3_adapter = S3Adapter(bucket_name=os.environ["S3_PERSISTENCE_BUCKET"]) from ask_sdk_core.skill_builder import CustomSkillBuilder from ask_sdk_core.dispatch_components import AbstractRequestHandler from ask_sdk_core.dispatch_components import AbstractExceptionHandler from ask_sdk_core.handler_input import HandlerInput from ask_sdk_model import Response logger = logging.getLogger(__name__) logger.setLevel(logging.INFO) class LaunchRequestHandler(AbstractRequestHandler): """Handler for Skill Launch.""" def can_handle(self, handler_input): # type: (HandlerInput) -> bool return ask_utils.is_request_type("LaunchRequest")(handler_input) def handle(self, handler_input): # type: (HandlerInput) -> Response speak_output = "Hello! This is Cake Time. What is your birthday?" reprompt_text = "I was born Nov. 6th, 2015. When are you born?" return ( handler_input.response_builder .speak(speak_output) .ask(reprompt_text) .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 ask_utils.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 sys_object = handler_input.request_envelope.context.system device_id = sys_object.device.device_id # get Alexa Settings API information api_endpoint = sys_object.api_endpoint 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 ordinal 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 CaptureBirthdayIntentHandler(AbstractRequestHandler): """Handler for Hello World Intent.""" def can_handle(self, handler_input): # type: (HandlerInput) -> bool return ask_utils.is_intent_name("CaptureBirthdayIntent")(handler_input) def handle(self, handler_input): # type: (HandlerInput) -> Response slots = handler_input.request_envelope.request.intent.slots year = slots["year"].value month = slots["month"].value day = slots["day"].value attributes_manager = handler_input.attributes_manager birthday_attributes = { "year": year, "month": month, "day": day } attributes_manager.persistent_attributes = birthday_attributes attributes_manager.save_persistent_attributes() speak_output = 'Thanks, I will remember that you were born {month} {day} {year}.'.format(month=month, day=day, year=year) return ( handler_input.response_builder .speak(speak_output) # .ask("add a reprompt if you want to keep the session open for the user to respond") .response ) class HelpIntentHandler(AbstractRequestHandler): """Handler for Help Intent.""" def can_handle(self, handler_input): # type: (HandlerInput) -> bool return ask_utils.is_intent_name("AMAZON.HelpIntent")(handler_input) def handle(self, handler_input): # type: (HandlerInput) -> Response speak_output = "You can say hello to me! How can I help?" return ( handler_input.response_builder .speak(speak_output) .ask(speak_output) .response ) class CancelOrStopIntentHandler(AbstractRequestHandler): """Single handler for Cancel and Stop Intent.""" def can_handle(self, handler_input): # type: (HandlerInput) -> bool return (ask_utils.is_intent_name("AMAZON.CancelIntent")(handler_input) or ask_utils.is_intent_name("AMAZON.StopIntent")(handler_input)) def handle(self, handler_input): # type: (HandlerInput) -> Response speak_output = "Goodbye!" return ( handler_input.response_builder .speak(speak_output) .response ) class SessionEndedRequestHandler(AbstractRequestHandler): """Handler for Session End.""" def can_handle(self, handler_input): # type: (HandlerInput) -> bool return ask_utils.is_request_type("SessionEndedRequest")(handler_input) def handle(self, handler_input): # type: (HandlerInput) -> Response # Any cleanup logic goes here. return handler_input.response_builder.response class IntentReflectorHandler(AbstractRequestHandler): """The intent reflector is used for interaction model testing and debugging. It will simply repeat the intent the user said. You can create custom handlers for your intents by defining them above, then also adding them to the request handler chain below. """ def can_handle(self, handler_input): # type: (HandlerInput) -> bool return ask_utils.is_request_type("IntentRequest")(handler_input) def handle(self, handler_input): # type: (HandlerInput) -> Response intent_name = ask_utils.get_intent_name(handler_input) speak_output = "You just triggered " + intent_name + "." return ( handler_input.response_builder .speak(speak_output) # .ask("add a reprompt if you want to keep the session open for the user to respond") .response ) class CatchAllExceptionHandler(AbstractExceptionHandler): """Generic error handling to capture any syntax or routing errors. If you receive an error stating the request handler chain is not found, you have not implemented a handler for the intent being invoked or included it in the skill builder below. """ def can_handle(self, handler_input, exception): # type: (HandlerInput, Exception) -> bool return True def handle(self, handler_input, exception): # type: (HandlerInput, Exception) -> Response logger.error(exception, exc_info=True) speak_output = "Sorry, I had trouble doing what you asked. Please try again." return ( handler_input.response_builder .speak(speak_output) .ask(speak_output) .response ) # The SkillBuilder object acts as the entry point for your skill, routing all request and response # payloads to the handlers above. Make sure any new handlers or interceptors you've # defined are included below. The order matters - they're processed top to bottom. sb = CustomSkillBuilder(persistence_adapter=s3_adapter) sb.add_request_handler(HasBirthdayLaunchRequestHandler()) sb.add_request_handler(LaunchRequestHandler()) sb.add_request_handler(CaptureBirthdayIntentHandler()) sb.add_request_handler(HelpIntentHandler()) sb.add_request_handler(CancelOrStopIntentHandler()) sb.add_request_handler(SessionEndedRequestHandler()) sb.add_request_handler(IntentReflectorHandler()) # make sure IntentReflectorHandler is last so it doesn't override your custom intent handlers sb.add_exception_handler(CatchAllExceptionHandler()) lambda_handler = sb.lambda_handler()