mirror of
https://github.com/kuhyx/diet-guard.git
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Krzysztof kuhy Rudnicki
ee5a7660cb
Milestone 1 of the diet-app-as-wise-balloon plan: a phone-native way to log meals away from the PC, sharing the exact on-disk JSON shape diet_guard already uses (same field names, no translation layer). - lib/models/: 1:1 Dart mirrors of the Python dataclasses (Nutrition, FoodEntry, MealItem, FoodBankRecord, Slot), including the per-100g/ amount-eaten portion scaling that matches _resolve.resolve_nutrition's semantics exactly. - lib/services/log_storage_service.dart: plain-JSON persistence to food_log.json's exact shape (no sqflite -- the canonical format already is this JSON). - lib/services/foodbank_service.dart: ports _foodbank.py's upsert/fuzzy search logic for autocomplete. - lib/screens/: log_meal_screen.dart (single-item logging) and meal_builder_screen.dart (composite multi-item meals, logging full per-component macros via the new components field). Verified end-to-end on a physical device (BL9000): built, installed, logged a real meal through the UI. 77 Flutter tests passing, `flutter analyze` clean against very_good_analysis. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01FU3f5KQ1GHXsbbSecfVEyF
62 lines
2.1 KiB
Dart
62 lines
2.1 KiB
Dart
/// Composite "meal" support, mirroring diet_guard's `_meal.py`.
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library;
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import 'package:diet_guard_app/models/meal_component.dart';
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import 'package:diet_guard_app/models/nutrition.dart';
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/// Provenance stamped on a summed meal, matching `_meal.MEAL_SOURCE`.
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const String mealSource = 'meal';
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/// One named component of a composite meal, with its own nutrition.
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///
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/// Mirrors `_meal.MealItem`.
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class MealItem {
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/// Creates a [MealItem] from a component's name and resolved macros.
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const MealItem({required this.name, required this.nutrition});
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/// The component's food name (e.g. `"chicken"`).
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final String name;
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/// The component's resolved macros for the amount eaten.
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final Nutrition nutrition;
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}
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/// Returns the summed nutrition of a meal's [items].
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///
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/// Every macro and the portion weight are added across the items and
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/// rounded to 0.1, and the result is stamped `source: mealSource` so it is
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/// distinguishable from a single food. Mirrors `_meal.meal_total`.
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Nutrition mealTotal(List<MealItem> items) {
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double sumOf(double Function(MealItem) field) {
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var total = 0.0;
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for (final item in items) {
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total += field(item);
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}
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return double.parse(total.toStringAsFixed(1));
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}
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return Nutrition(
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kcal: sumOf((item) => item.nutrition.kcal),
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proteinG: sumOf((item) => item.nutrition.proteinG),
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carbsG: sumOf((item) => item.nutrition.carbsG),
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fatG: sumOf((item) => item.nutrition.fatG),
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grams: sumOf((item) => item.nutrition.grams),
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source: mealSource,
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);
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}
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/// Returns a composite meal's per-component log record for [item].
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///
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/// Carries the component's full macros (not just its name) so a food bank
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/// rebuilt purely by replaying the log can recover each component's
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/// standalone nutrition, not just the composite's summed total. Mirrors
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/// `_meal.item_to_component`.
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MealComponent itemToComponent(MealItem item) => MealComponent(
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name: item.name,
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kcal: item.nutrition.kcal,
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proteinG: item.nutrition.proteinG,
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carbsG: item.nutrition.carbsG,
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fatG: item.nutrition.fatG,
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grams: item.nutrition.grams,
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);
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