from datetime import datetime, timedelta, timezone

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

from app.core.config import settings

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

ALGORITHM = "HS256"


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


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


def create_access_token(data: dict) -> str:
    to_encode = data.copy()
    expire = datetime.now(timezone.utc) + timedelta(
        minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES
    )
    to_encode.update({"exp": expire, "type": "access"})
    return jwt.encode(to_encode, settings.SECRET_KEY, algorithm=ALGORITHM)


def create_refresh_token(data: dict) -> str:
    to_encode = data.copy()
    expire = datetime.now(timezone.utc) + timedelta(
        days=settings.REFRESH_TOKEN_EXPIRE_DAYS
    )
    to_encode.update({"exp": expire, "type": "refresh"})
    return jwt.encode(to_encode, settings.SECRET_KEY, algorithm=ALGORITHM)


def verify_token(token: str, token_type: str = "access") -> dict | None:
    try:
        payload = jwt.decode(token, settings.SECRET_KEY, algorithms=[ALGORITHM])
        if payload.get("type") != token_type:
            return None
        return payload
    except JWTError:
        return None