"""
Daily intake-window helpers.

Intake runs on a schedule (8AM-3:30PM by default), so it's useful to
know when a ticket arrived relative to the cutoff - a ticket created
after INTAKE_CUTOFF_TIME didn't have a full window to get processed
same-day, which helps explain carryover rather than just seeing it as
unexplained backlog.
"""
from __future__ import annotations

import datetime as dt
from typing import Optional

from app import config


def parse_cutoff_time(raw: str) -> Optional[dt.time]:
    raw = (raw or "").strip()
    if not raw:
        return None
    try:
        hour_str, minute_str = raw.split(":")
        return dt.time(int(hour_str), int(minute_str))
    except (ValueError, TypeError):
        return None


def get_cutoff_time() -> Optional[dt.time]:
    return parse_cutoff_time(
        config.get("INTAKE_CUTOFF_TIME", config.DEFAULT_INTAKE_CUTOFF_TIME)
    )


def is_past_cutoff(created_at: Optional[dt.datetime], cutoff: Optional[dt.time]) -> bool:
    if not created_at or not cutoff:
        return False
    return created_at.time() > cutoff