"""
Security utilities
"""
from datetime import datetime, timedelta
from typing import Optional
from jose import JWTError, jwt
from passlib.context import CryptContext
from app.core.settings import settings


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


def hash_password(password: str) -> str:
    """Hache un mot de passe"""
    return pwd_context.hash(password)


def verify_password(plain_password: str, hashed_password: str) -> bool:
    """Vérifie un mot de passe"""
    return pwd_context.verify(plain_password, hashed_password)


def create_access_token(
    data: dict,
    expires_delta: Optional[timedelta] = None
) -> str:
    """Crée un JWT token"""
    to_encode = data.copy()
    
    if expires_delta:
        expire = datetime.utcnow() + expires_delta
    else:
        expire = datetime.utcnow() + timedelta(
            minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES
        )
    
    to_encode.update({"exp": expire})
    encoded_jwt = jwt.encode(
        to_encode,
        settings.SECRET_KEY,
        algorithm=settings.ALGORITHM
    )
    
    return encoded_jwt


def decode_access_token(token: str) -> dict:
    """Décrypte un JWT token"""
    try:
        payload = jwt.decode(
            token,
            settings.SECRET_KEY,
            algorithms=[settings.ALGORITHM]
        )
        return payload
    except JWTError:
        return None