mirror of
https://github.com/kuhyx/diet-guard.git
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Krzysztof kuhy Rudnicki
e23f7ac3b4
diet_guard pushed as "pc" (Python), "phone" (Android) and "desktop" (web). A role constant collides the moment a second machine takes the same role, and after a reinstall the new install inherits the previous one's CRDT identity -- the same reasoning home_inventory already records for choosing a uuid. Both halves now mint a uuid once and persist it: the PC in ~/.local/share/diet_guard/.device_id, the app under SharedPreferences 'crdt.nodeId' (the key todo and home_inventory already use). The old constant survives as the legacy id and is passed to sync_log / syncLog, so devices/<legacy>/ is skipped as this device's own. Without that every tick would re-download and re-merge this device's own pre-migration log as though a peer had written it -- idempotent under LWW, but hundreds of KB, 96 times a day. It drops to None once that path is reclaimed; a test covers both states, including a negative control proving the skip is the legacy id's doing. All four documents move together (food_log, food_bank, food_bank_manual, budget), and the hist:<date> fields riding on the budget record are untouched -- merge_record unions field names, so they relay through unchanged. The resolver lives in its own module (_device.py / sync_device_id.dart) because _sync_merge needs it for HLC stamping too and importing _sync there would be a cycle. Dart resolves it asynchronously at startup, before LogStorageService.init(); currentSyncDeviceId falls back to the compile-time role constant until then, so a too-early Hlc stamp gets a valid id rather than crashing. conftest redirects the new id file in the same change that introduces it -- without that a test mints a uuid into the real state dir and this machine's live sync identity is decided by whichever test ran first. Verified by checking ~/.local/share/diet_guard/ before and after: untouched. Verified live, not just against mocks: the sync timer ran mid-change and migrated this machine to f8f46da6. All 358 food_log records and all 100 food_bank records are present under the new path (0 missing vs devices/pc/), and the new log's HLCs carry only its own id -- confirming it did not re-merge the old path as a peer. Python: 687 tests, 100% branch coverage. App: 518 tests, analyzer clean. Pins bumped to crdt-sync-v0.6.0 / crdt_sync_dart-v0.7.0 (pyproject, requirements.txt, .pre-commit-config.yaml, pubspec), and the new library is installed into /usr/bin/python's user site-packages so the production timer does not ImportError on its next tick. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01GZH89WEqAjuJT8WZdqc7AP
64 lines
2.4 KiB
Dart
64 lines
2.4 KiB
Dart
/// App entry point: initializes local storage services, registers the
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/// background due-slot check, then shows the primary meal-logging screen.
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library;
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import 'dart:async';
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import 'package:diet_guard_app/screens/log_meal_screen.dart';
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import 'package:diet_guard_app/services/app_settings_service.dart';
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import 'package:diet_guard_app/services/background_tasks.dart';
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import 'package:diet_guard_app/services/budget_history_service.dart';
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import 'package:diet_guard_app/services/foodbank_service.dart';
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import 'package:diet_guard_app/services/frame_stats.dart';
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import 'package:diet_guard_app/services/log_storage_service.dart';
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import 'package:diet_guard_app/services/notification_service.dart';
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import 'package:diet_guard_app/services/sync_device_id.dart';
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import 'package:diet_guard_app/ui/theme.dart';
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import 'package:flutter/material.dart';
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Future<void> main() async {
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WidgetsFlutterBinding.ensureInitialized();
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// Before anything that stamps an Hlc or syncs: until this resolves, the
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// device id falls back to the pre-migration role constant.
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await initSyncDeviceId();
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await LogStorageService.init();
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await AppSettingsService.init();
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await BudgetHistoryService.init();
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await FoodBankService.init();
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final notifications = await NotificationService.init();
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// Deliberately *not* awaited before the first frame: the browser's
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// `Notification.requestPermission()` does not complete until the user
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// answers the prompt, so awaiting it here left the desktop app as a blank
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// white window behind the permission bubble. Scheduling is likewise
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// platform-specific (WorkManager on Android, an in-page timer in the
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// browser -- see background_tasks.dart) and equally not worth a delayed
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// first frame.
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// coverage:ignore-start
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unawaited(
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notifications.requestPermission().then((_) {
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return initBackgroundTasks();
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}),
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);
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// coverage:ignore-end
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// Off unless armed with --dart-define=DIET_GUARD_FRAME_STATS=1.
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// coverage:ignore-start
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if (frameStatsEnabled) startFrameStats();
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// coverage:ignore-end
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runApp(const DietGuardApp());
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}
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/// Root widget for the Diet Guard companion app.
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class DietGuardApp extends StatelessWidget {
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/// Creates the [DietGuardApp] root widget.
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const DietGuardApp({super.key});
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: 'Diet Guard',
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theme: buildAppTheme(),
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home: const LogMealScreen(),
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);
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}
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}
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