from typing import Sequence

from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession

from app.models.user import User
from app.schemas.user import UserCreate


async def get_by_username(db: AsyncSession, username: str) -> User | None:
    result = await db.execute(select(User).where(User.username == username))
    return result.scalar_one_or_none()


async def create(db: AsyncSession, user_in: UserCreate, hashed_password: str) -> User:
    user = User(
        username=user_in.username,
        hashed_password=hashed_password,
        role=user_in.role,
        is_active=user_in.is_active,
    )
    db.add(user)
    await db.commit()
    await db.refresh(user)
    return user


async def list_users(db: AsyncSession, limit: int = 100) -> Sequence[User]:
    result = await db.execute(select(User).limit(limit))
    return result.scalars().all()