import aiosqlite

class Database:
    def __init__(self, db_path: str):
        self.db_path = db_path

    async def create_tables(self):
        async with aiosqlite.connect(self.db_path) as db:
            await db.execute("""
                CREATE TABLE IF NOT EXISTS users (
                    id INTEGER PRIMARY KEY,
                    user_id INTEGER UNIQUE
                )
            """)
            await db.commit()

    async def add_user(self, user_id: int):
        async with aiosqlite.connect(self.db_path) as db:
            await db.execute(
                "INSERT OR IGNORE INTO users (user_id) VALUES (?)",
                (user_id,)
            )
            await db.commit()

    async def get_all(self):
        async with aiosqlite.connect(self.db_path) as db:
            async with db.execute("SELECT * FROM users") as cursor:
                rows = await cursor.fetchall()
                return rows