cic-internal-integration/apps/cic-ussd/cic_ussd/phone_number.py

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# standard imports
from typing import Optional
# third-party imports
import phonenumbers
# local imports
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from cic_ussd.db.models.account import Account
def process_phone_number(phone_number: str, region: str):
"""This function parses any phone number for the provided region
:param phone_number: A string with a phone number.
:type phone_number: str
:param region: Caller defined region
:type region: str
:return: The parsed phone number value based on the defined region
:rtype: str
"""
if not isinstance(phone_number, str):
try:
phone_number = str(int(phone_number))
except ValueError:
pass
phone_number_object = phonenumbers.parse(phone_number, region)
parsed_phone_number = phonenumbers.format_number(phone_number_object, phonenumbers.PhoneNumberFormat.E164)
return parsed_phone_number
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def get_user_by_phone_number(phone_number: str) -> Optional[Account]:
"""This function queries the database for a user based on the provided phone number.
:param phone_number: A valid phone number.
:type phone_number: str
:return: A user object matching a given phone number
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:rtype: Account|None
"""
# consider adding region to user's metadata
phone_number = process_phone_number(phone_number=phone_number, region='KE')
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user = Account.session.query(Account).filter_by(phone_number=phone_number).first()
return user