import uuid
from datetime import datetime, timedelta, timezone

import jwt

from app.config import settings


def create_token(user_id: uuid.UUID) -> str:
    payload = {
        "sub": str(user_id),
        "iat": datetime.now(timezone.utc),
        "exp": datetime.now(timezone.utc) + timedelta(minutes=settings.jwt_expire_minutes),
    }
    return jwt.encode(payload, settings.jwt_secret, algorithm=settings.jwt_algorithm)


def decode_token(token: str) -> dict | None:
    try:
        return jwt.decode(token, settings.jwt_secret, algorithms=[settings.jwt_algorithm])
    except jwt.PyJWTError:
        return None