wake-alarm/wake_alarm/_gating.py
Krzysztof kuhy Rudnicki 9e0cd123ff Phase 3: remove the max-fan ramp, split _alarm.py, wire the new modules
Item 14: the fan ramp is gone entirely. It caused anxiety without helping
anyone wake up. Deletes _max_fans/_restore_fans/_find_fan_hwmon, the
_AlarmHardware.fan_state field, both call sites, and their tests.
wake-alarm-fans.sh and its NOPASSWD sudoers entry come out in the install.sh
pass -- dropping a passwordless root helper is a bonus.

_alarm.py was 478 lines and the 250-line gate fires on any commit that stages
it, so this carries the split it has owed for a while. New modules, each a
real seam rather than an arbitrary cut:

  _gating          should-it-run-today + CLI (no time gate; that is _trigger's)
  _beep_loop       the sounding thread, now driving _escalation's planner
  _alarm_timers    self-rescheduling challenge refresh / skip window (mixin)
  _alarm_state     the progress + hardware dataclasses
  _rounds          challenge presentation, re-exporting the view helpers
  _countdown       skip-window arithmetic and demo/production intervals
  _dismiss_view    the post-dismissal banner
  _screen_flash    the ~1.3 Hz attention flash (kept under the 3 Hz threshold)
  _lock_setup      gatelock config + arbiter claim
  _startup         wake display, brightness, plug
  _tone            tone synthesis and cache (out of _audio)
  _brightness      xrandr brightness (was in _audio, never belonged there)

main() deliberately stays in _alarm.py: morning_routine/_orchestrator.py:39
hardcodes "wake_alarm._alarm", and moving it is the exact mistake that caused
a month-long silent production failure once already. Verified after the split
that the module still resolves and accepts --production.

Also fixes the plug pre-roll found while researching speakers: main() fired
turn_on_plug() and the first beep in the same instant, so an amplifier's
soft-start relay swallowed the opening of the alarm. PLUG_PREROLL_SECONDS=4
now sits between them.

Two bugs found by running the code rather than by lint:
- ruff stripped `struct` from the extracted _tone.py because the import
  landed before its first usage; only executing it caught the NameError.
- test fixtures patched _play_on_all_sinks/_set_max_brightness at
  wake_alarm._alarm, which silently stopped intercepting once those moved.

404 tests, 100% branch coverage, no new noqa/type-ignore suppressions.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EckWmyfetYq3Mi8MAnUudh
2026-08-26 23:46:10 +02:00

82 lines
2.5 KiB
Python

"""Decide whether the alarm should run, and parse its CLI.
Split out of ``_alarm.py`` so the gate is testable without constructing a
window, and to keep that module under the 250-line cap.
Note ``_should_run_alarm`` has deliberately **no time gate**: the trigger owns
"is it time?", and this owns "should it run at all today?". That separation is
why ``wake-alarm.service`` must never get an ``[Install]`` section -- with no
time gate, a ``WantedBy=`` would fire the alarm at login.
"""
from __future__ import annotations
import argparse
from datetime import datetime, timezone
import logging
from wake_alarm._constants import ALARM_DAYS
from wake_alarm._state import was_alarm_dismissed_today, was_workout_logged_today
_logger = logging.getLogger(__name__)
def is_alarm_day(*, now: datetime | None = None) -> bool:
"""Report whether today is configured as an alarm day.
Args:
now: Instant to test; defaults to the current local time.
Returns:
True when today's weekday is in ``ALARM_DAYS``.
"""
moment = now if now is not None else datetime.now(tz=timezone.utc).astimezone()
return moment.weekday() in ALARM_DAYS
def should_run_alarm() -> bool:
"""Decide whether the alarm should sound at all today.
Returns:
True unless today is not an alarm day, the alarm was already
dismissed, or the workout was already logged.
"""
if not is_alarm_day():
_logger.info("Not an alarm day. Exiting.")
return False
if was_alarm_dismissed_today():
_logger.info("Alarm already dismissed today. Exiting.")
return False
if was_workout_logged_today():
_logger.info("Workout already logged today. Skipping alarm.")
return False
return True
def parse_args(argv: list[str]) -> argparse.Namespace:
"""Parse CLI arguments for the alarm daemon.
Args:
argv: Argument list without the program name.
Returns:
The parsed namespace.
"""
parser = argparse.ArgumentParser(description="Wake alarm daemon.")
parser.add_argument(
"--production",
action="store_true",
help="Production mode (default; kept for systemd compatibility).",
)
parser.add_argument(
"--demo",
action="store_true",
help="Run with a smaller window and shorter timers.",
)
parser.add_argument(
"--trigger-now",
action="store_true",
help="Bypass the day/dismiss gate and fire the alarm immediately.",
)
return parser.parse_args(argv)