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ResponseGenerator.py
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ResponseGenerator.py
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from enum import Enum
from Response import ResponseType
from parser import IntroParser, AppInqParser, NameInqParser, VerifyParser
class States(Enum):
INTRO = 1
APPOINTMENT_INQUIRY = 2
NAME_INQUIRY = 3
APPOINTMENT_VERIFY = 4
class ResponseGenerator:
def __init__(self, nlp, parsed_appointments):
self.nlp = nlp
self.parsed_appointments = parsed_appointments
self.states = [States.APPOINTMENT_VERIFY, States.NAME_INQUIRY, States.APPOINTMENT_INQUIRY, States.INTRO]
self.intro_parser = IntroParser()
self.app_parser = AppInqParser()
self.name_parser = NameInqParser(parsed_appointments)
self.verify_parser = VerifyParser()
def reset_conversation(self):
self.states = [States.APPOINTMENT_VERIFY, States.NAME_INQUIRY, States.APPOINTMENT_INQUIRY, States.INTRO]
def get_parser(self, state):
if state == States.INTRO:
return self.intro_parser
if state == States.APPOINTMENT_INQUIRY:
return self.app_parser
if state == States.NAME_INQUIRY:
return self.name_parser
if state == States.APPOINTMENT_VERIFY:
return self.verify_parser
def generate_response(self, request):
parser = self.get_parser(self.states[-1])
request.parsed = self.nlp.run(request.original)
response = parser.handle(request)
if response.state_change:
self.states.pop()
if response.type == ResponseType.END or len(self.states) == 0:
self.reset_conversation()
return response