import datetime

import re

from typing import NamedTuple, Optional

STUDENT_TYPE_ONLINE = 'онлайн'

STUDENT_TYPE_OFFLINE = 'оффлайн'

class Student(NamedTuple):

first_name: str

last_name: str

telegram_account: Optional[str]

telegram_chat_id: Optional[str]

phone_number: Optional[str]

email: Optional[str]

group_type: str

knowledge_description: str

purpose: Optional[str]

airtable_id: str

airtable_pk: int

curator_id: Optional[str]

@property

def name(self) -> str:

return f'{self.last_name} {self.first_name}'

@property

def is_telegram_account_valid(self) -> bool:

min_account_length = 5

telegram_account_regexp = r'^@[a-zA-Z0-9_]+$'

if (

self.telegram_account is None

or len(self.telegram_account) < min_account_length

or not re.match(telegram_account_regexp, self.telegram_account)

):

return False

return True

def is_online(self) -> bool:

return STUDENT_TYPE_ONLINE in self.group_type.lower()

def is_offline(self) -> bool:

return STUDENT_TYPE_OFFLINE in self.group_type.lower()

class Event(NamedTuple):

title: str

online_at: datetime.datetime

offline_at: datetime.datetime

zoom_url: Optional[str]

where: Optional[str]

@property

def week_num(self) -> int:

try:

return int(self.title.split()[0])

except (TypeError, ValueError):

return 1

class Curator(NamedTuple):

name: str

telegram_account: Optional[str]

telegram_chat_id: Optional[str]

airtable_id: str