from datetime import datetime, timedelta, timezone
from typing import Optional

from jose import JWTError, jwt
from passlib.context import CryptContext

from app.config import settings

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


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


def verify_password(plain: str, hashed: str) -> bool:
    return pwd_context.verify(plain, hashed)


def create_access_token(data: dict) -> str:
    payload = data.copy()
    expire = datetime.now(timezone.utc) + timedelta(minutes=settings.JWT_EXPIRE_MINUTES)
    payload["exp"] = expire
    return jwt.encode(payload, settings.JWT_SECRET, algorithm=settings.JWT_ALGORITHM)


def decode_token(token: str) -> Optional[dict]:
    try:
        return jwt.decode(token, settings.JWT_SECRET, algorithms=[settings.JWT_ALGORITHM])
    except JWTError:
        return None