from datetime import datetime, timedelta, timezone
import jwt
from passlib.context import CryptContext
from app.core.config import get_settings

settings = get_settings()
pwd_context = CryptContext(schemes=["argon2"], deprecated="auto")


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


def verify_password(password: str, password_hash: str) -> bool:
    return pwd_context.verify(password, password_hash)


def create_token(subject: str, token_type: str, expires_minutes: int) -> str:
    now = datetime.now(timezone.utc)
    exp = now + timedelta(minutes=expires_minutes)
    payload = {"sub": subject, "type": token_type, "iat": int(now.timestamp()), "exp": int(exp.timestamp())}
    return jwt.encode(payload, settings.jwt_secret_key, algorithm=settings.jwt_algorithm)


def create_access_token(subject: str) -> str:
    return create_token(subject, "access", settings.jwt_access_token_minutes)


def create_refresh_token(subject: str) -> str:
    return create_token(subject, "refresh", settings.jwt_refresh_token_minutes)
