from datetime import datetime, timedelta, timezone
from typing import Any
from jose import JWTError, jwt
from passlib.context import CryptContext
from app.config import get_settings

settings = get_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_token(data: dict[str, Any], expires_delta: timedelta) -> str:
    payload = data.copy()
    payload["exp"] = datetime.now(timezone.utc) + expires_delta
    return jwt.encode(payload, settings.SECRET_KEY, algorithm=settings.ALGORITHM)


def create_access_token(user_id: int, role: str) -> str:
    return _create_token(
        {"sub": str(user_id), "role": role, "type": "access"},
        timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES),
    )


def create_refresh_token(user_id: int) -> str:
    return _create_token(
        {"sub": str(user_id), "type": "refresh"},
        timedelta(days=settings.REFRESH_TOKEN_EXPIRE_DAYS),
    )


def decode_token(token: str) -> dict[str, Any]:
    return jwt.decode(token, settings.SECRET_KEY, algorithms=[settings.ALGORITHM])