mirror of
https://github.com/kuhyx/diet-guard.git
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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
31 lines
1.3 KiB
Dart
31 lines
1.3 KiB
Dart
/// Local-time formatting that matches diet_guard's Python ISO format.
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library;
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/// Returns [now] as an ISO-8601 string with a fixed local UTC offset and
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/// second precision, matching Python's
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/// `now_local().isoformat(timespec="seconds")`, e.g.
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/// `"2026-06-22T15:08:11+02:00"`.
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///
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/// Dart's own [DateTime.toIso8601String] omits the UTC offset for a local
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/// (non-UTC) [DateTime], so this fills that gap to keep the `time` field
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/// byte-comparable with entries the PC app writes.
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String isoLocalSeconds(DateTime now) {
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final offset = now.timeZoneOffset;
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final sign = offset.isNegative ? '-' : '+';
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final absOffset = offset.abs();
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String two(int value) => value.toString().padLeft(2, '0');
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String four(int value) => value.toString().padLeft(4, '0');
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final offsetHours = two(absOffset.inHours);
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final offsetMinutes = two(absOffset.inMinutes.remainder(60));
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return '${four(now.year)}-${two(now.month)}-${two(now.day)}'
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'T${two(now.hour)}:${two(now.minute)}:${two(now.second)}'
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'$sign$offsetHours:$offsetMinutes';
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}
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/// Returns [now]'s local calendar date as `YYYY-MM-DD`.
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///
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/// Local, not UTC: mirrors `_state._today()` -- "what I ate today" is a
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/// local-calendar concept, so a meal eaten late in the evening must not
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/// roll into tomorrow's total.
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String localDateKey(DateTime now) => isoLocalSeconds(now).substring(0, 10);
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