from datetime import datetime, timedelta
from typing import Optional, Union, Any

from jose import jwt
from passlib.context import CryptContext
from config import settings

# Настройки безопасности берутся из config.py
SECRET_KEY = settings.SECRET_KEY
ALGORITHM = settings.ALGORITHM
ACCESS_TOKEN_EXPIRE_MINUTES = settings.ACCESS_TOKEN_EXPIRE_MINUTES

pwd_context = CryptContext(schemes=["argon2"], deprecated="auto")


def verify_password(plain_password: str, hashed_password: str) -> bool:
    return pwd_context.verify(plain_password, hashed_password)


def get_password_hash(password: str) -> str:
    return pwd_context.hash(password)


def create_access_token(data: dict, expires_delta: Optional[timedelta] = None) -> str:
    to_encode = data.copy()
    if expires_delta:
        expire = datetime.utcnow() + expires_delta
    else:
        expire = datetime.utcnow() + timedelta(minutes=15)
    
    # Стандартное поле 'exp' для JWT
    to_encode.update({"exp": expire})
    
    encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
    return encoded_jwt