"""Platform-setting-backed configuration for the attendance domain.

Everything operationally tunable (which department counts as interns,
the cycle start day, reminder behaviour) lives in ``platform_settings``
so IT can change it without a deploy. These helpers centralise the
defaulting + coercion so callers never see a malformed setting.
"""
from __future__ import annotations

from sqlalchemy.ext.asyncio import AsyncSession

from app.domains.attendance import constants as c
from app.integrations.service import get_platform_setting


async def get_intern_department(db: AsyncSession) -> str:
    val = await get_platform_setting(
        c.SETTING_INTERN_DEPARTMENT, c.DEFAULT_INTERN_DEPARTMENT, session=db,
    )
    name = str(val).strip() if val is not None else ""
    return name or c.DEFAULT_INTERN_DEPARTMENT


async def get_cycle_start_day(db: AsyncSession) -> int:
    val = await get_platform_setting(
        c.SETTING_CYCLE_START_DAY, c.DEFAULT_CYCLE_START_DAY, session=db,
    )
    try:
        day = int(val)
    except (TypeError, ValueError):
        return c.DEFAULT_CYCLE_START_DAY
    return day if 1 <= day <= 28 else c.DEFAULT_CYCLE_START_DAY