from pydantic import BaseModel, Field, EmailStr, constr,validator
from typing import List, Optional
from enum import IntEnum
#Валидация пароля
import re
def check_password_complexity(cls, password):
    if password is None:
        return password
    if not re.search(r'[A-Za-z]', password):
        raise ValueError('Password must contain at least one letter')
    if not re.search(r'\d', password):
        raise ValueError('Password must contain at least one digit')
    if not re.search(r'[!@#$%^&*(),.?":{}|<>]', password):
        raise ValueError('Password must contain at least one special symbol')
    return password

#Валидация полей с пользователями
class UsersInfo(BaseModel):
    email:EmailStr = Field(..., min_length=6, max_length=254, description="email of the user")
    description: str = Field(..., description="description of the user")
    activated:bool = Field(..., description="Has the user activated their account")
    password:constr(min_length=8) = Field(..., description="Password with min 8 chars, letters and digits")
    @validator('password')
    def password_validator(cls, password):
        return check_password_complexity(cls, password)
class IdofPersons(UsersInfo):
    id:int = Field(..., description="Unique identifier of the user")
class CreateUser(UsersInfo):
    pass
class UserUpdate(BaseModel):
    email:Optional[EmailStr] = Field(None, min_length=6, max_length=254, description="users' email")
    description:Optional[str] = Field(None, description="description of the user")
    activated:Optional[bool] = Field(None, description="Has the user activated their account")
    password:Optional[constr(min_length=8)] = Field(None, description="Password with min 8 chars, letters and digits")
    @validator('password')
    def password_validator(cls, password):
        return check_password_complexity(cls, password)
class UserLogin(BaseModel):
    email:EmailStr = Field(..., min_length=6, max_length=254, description="user's email")
    password:str = Field(..., description="Password")
class UserLogout(BaseModel):
    email:EmailStr = Field(..., min_length=6, max_length=254, description="user's email")