mirror of
https://github.com/kuhyx/diet-guard.git
synced 2026-11-11 18:13:55 +01:00
Krzysztof kuhy Rudnicki
03e14e17f3
Some checks failed
file-length / file length <= 250 lines (push) Has been cancelled
md-naming / markdown naming convention (push) Has been cancelled
pre-commit / pre-commit (push) Has been cancelled
Tests / test (3.10) (push) Has been cancelled
Tests / test (3.11) (push) Has been cancelled
Tests / test (3.12) (push) Has been cancelled
release-apk / release (APK) (push) Has been cancelled
Renames this repo's markdown onto README.md / CLAUDE*.md / DOCS*.md / TODO*.md so a future session can tell a live task from a finished record without reading the file to find out. TODO files carry the literal "REMOVE ME AFTER FINISH" and are deleted when the work lands. Enforced by the md-naming pre-commit hook and CI workflow, both delegating to the shared gate in kuhyx/utils so this repo's idea of a valid name cannot drift from every other repo's. Includes the patch bump this repo's bump-patch-version hook applies to app/pubspec.yaml on every commit. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01A47aX5DJwmA3QFn3pkEWi7
52 lines
2.8 KiB
Markdown
52 lines
2.8 KiB
Markdown
# The meal schedule (`_meal_schedule.py` / `meal_schedule.dart`)
|
||
|
||
_Split out of `CLAUDE.md` to keep it under the repo's 250-line cap._
|
||
|
||
The user sets a first meal hour, a last meal hour, and how many meals fall
|
||
between them; the intermediate checkpoints are derived by even division.
|
||
`MealSchedule(8, 20, 5)` → `08:00, 11:00, 14:00, 17:00, 20:00`. The default
|
||
`MealSchedule(8, 20, 4)` reproduces the hours that used to be hardcoded, so an
|
||
existing install sees no change until it is edited.
|
||
|
||
Four rules, each load-bearing:
|
||
|
||
- **Integer arithmetic only** — see the `Do NOT` entry below. The shared
|
||
test-vector table plus an identical 0..23 × 0..23 × 2..6 sweep in
|
||
`test_meal_schedule.py` and `meal_schedule_test.dart` is what catches a
|
||
cross-language divergence before it reaches a device.
|
||
- **Slots stay whole hours.** Changing that changes the on-disk log's `slot`
|
||
tag and the sync wire format, on both devices.
|
||
- **Counts are clamped to the window width** (`last - first + 1`), because a
|
||
narrow window would otherwise round two meals onto the same hour, and slot
|
||
hours are set members, dict keys *and* notification ids — a duplicate
|
||
silently drops a checkpoint. The two edit surfaces reject such input with a
|
||
message; `normalized()` clamps it, which is the defence against a peer's
|
||
corrupt sync data rather than the input contract.
|
||
- **The enforcement cutoff is `last + 2h`, clamped to midnight.** It is a
|
||
grace period for a late dinner, deliberately independent of meal count.
|
||
Unclamped, a 23:00 last meal gives 25 and `hour < cutoff` is vacuously
|
||
true — the window never closes.
|
||
|
||
`_slots.py` / `slot.dart` take the schedule as a **required** argument. A
|
||
default there would let a call site missed in a refactor keep deriving the old
|
||
fixed hours on one device only, which is the split brain that can lock the
|
||
user out; making it required lets mypy and `flutter analyze` enumerate the
|
||
sites. Callers resolve it at the impure edge through
|
||
`_meal_schedule_store.current_schedule()` / `MealScheduleService.current`.
|
||
|
||
The history is forward-only (`_meal_schedule_store.py` /
|
||
`meal_schedule_history.dart`), so switching from four meals to five does not
|
||
retroactively mark past days as having missed a checkpoint. It seeds the
|
||
default at `1970-01-01` **before** recording today's value — same ordering
|
||
requirement as `_budget_history.py`. It syncs as `sched:<YYYY-MM-DD>` fields
|
||
on the existing `budget` CRDT record, so devices predating the feature relay
|
||
them untouched.
|
||
|
||
Editable on both surfaces: the app's Settings screen
|
||
(`settings_meal_schedule.dart`) and the gate's History tab
|
||
(`_gatelock_scheduleedit.py`).
|
||
|
||
**Notification ids are slot hours.** `syncToSlots` must sweep the whole 0..23
|
||
id space, not the current schedule's slots — otherwise a schedule change
|
||
orphans the ids it no longer contains and they nag forever.
|