"""Password hashing utilities using bcrypt directly."""

import asyncio

import bcrypt


def hash_password(password: str) -> str:
    """Hash a password using bcrypt."""
    return bcrypt.hashpw(password.encode("utf-8"), bcrypt.gensalt()).decode("utf-8")


def verify_password(plain_password: str, hashed_password: str) -> bool:
    """Verify a password against its hash."""
    return bcrypt.checkpw(plain_password.encode("utf-8"), hashed_password.encode("utf-8"))


async def hash_password_async(password: str) -> str:
    """Hash a password using bcrypt (non-blocking).

    Wraps the blocking bcrypt operation in a thread pool to avoid
    blocking the event loop during password hashing.
    """
    return await asyncio.to_thread(hash_password, password)


async def verify_password_async(plain_password: str, hashed_password: str) -> bool:
    """Verify a password against its hash (non-blocking).

    Wraps the blocking bcrypt operation in a thread pool to avoid
    blocking the event loop during password verification.
    """
    return await asyncio.to_thread(verify_password, plain_password, hashed_password)