from __future__ import annotations

import asyncio

from sqlalchemy import select

from app.db import AppSetting, Database
from app.services import REQUIRED_SETTINGS
from app.settings import get_settings


async def validate() -> int:
    database = Database(get_settings().database_url)
    try:
        async with database.sessions() as session:
            active_keys = set(
                (
                    await session.execute(
                        select(AppSetting.setting_key).where(AppSetting.record_status == "A")
                    )
                )
                .scalars()
                .all()
            )
    finally:
        await database.close()

    missing = sorted(REQUIRED_SETTINGS - active_keys)
    if missing:
        raise RuntimeError(f"Mandatory application settings are missing: {', '.join(missing)}")
    return len(REQUIRED_SETTINGS)


def main() -> None:
    count = asyncio.run(validate())
    print(f"Mandatory application settings validated: {count}")


if __name__ == "__main__":
    main()