refactor(nutrition): improve localization and date formatting

- Extract date display logic in nutritional plan details
- Migrate hardcoded strings to localization files

Author: pankaj-basnet

lib/l10n/app_en.arb

@@ -460,6 +460,25 @@
   "@toAddMealsToThePlanGoToNutritionalPlanDetails": {
     "description": "Message shown to guide users to the nutritional plan details page to add meals"
   },
+  "planDateRange": "from {startDate} to {endDate}",
+  "@planDateRange": {
+    "description": "Label for the start and end date range of a plan",
+    "placeholders": {
+      "startDate": { "type": "String" },
+      "endDate": { "type": "String" }
+    }
+  },
+  "planStartDate": "from {startDate}",
+  "@planStartDate": {
+    "description": "Label for the start date of a plan",
+    "placeholders": {
+      "startDate": { "type": "String" }
+    }
+  },
+  "otherLogs": "Other logs",
+  "@otherLogs": {
+    "description": "Other unassigned logs. Label for the pseudo-meal section that groups all nutritional diary entries not assigned to a specific meal"
+  },
   "goalEnergy": "Energy goal",
   "goalProtein": "Protein goal",
   "goalCarbohydrates": "Carbohydrates goal",
@@ -675,6 +694,10 @@
   "fiber": "Fibers",
   "sodium": "Sodium",
   "@sodium": {},
+  "carbohydratesSugar": "Sugar (Carbohydrates)",
+  "@carbohydratesSugar": {
+    "description": "Label for the carbohydrates sugar"
+  },
   "amount": "Amount",
   "@amount": {
     "description": "The amount (e.g. in grams) of an ingredient in a meal"

lib/screens/log_meal_screen.dart

@@ -78,7 +78,7 @@ class _LogMealScreenState extends ConsumerState<LogMealScreen> {
                       children: [
                         const DiaryheaderTile(),
                         ...meal.mealItems.map(
-                          (item) => MealItemEditableFullTile(item, viewMode.withAllDetails, false),
+                          (item) => MealItemEditableFullTile(item, ViewMode.withAllDetails, false),
                         ),
                         const SizedBox(height: 32),
                         Text(

lib/screens/log_meals_screen.dart

@@ -61,7 +61,6 @@ class _LogMealsScreenState extends State<LogMealsScreen> {
                     itemCount: nutritionalPlan.meals.length,
                     itemBuilder: (context, index) => MealWidget(
                       nutritionalPlan.meals[index],
-                      nutritionalPlan.dedupMealItems,
                       true,
                       true,
                     ),

lib/widgets/nutrition/charts.dart

@@ -337,6 +337,7 @@ class NutritionalDiaryChartWidgetFlState extends State<NutritionalDiaryChartWidg
     final logged7DayAvg = widget._nutritionalPlan.loggedNutritionalValues7DayAvg;
 
     final [colorPlanned, colorLoggedToday, colorLogged7Day] = LIST_OF_COLORS3;
+    final i18n = AppLocalizations.of(context);
 
     BarChartGroupData barchartGroup(
       int x,
@@ -433,18 +434,18 @@ class NutritionalDiaryChartWidgetFlState extends State<NutritionalDiaryChartWidg
                   borderData: FlBorderData(show: false),
                   groupsSpace: 30,
                   barGroups: [
-                    barchartGroup(0, barsSpace, barsWidth, 'protein'),
-                    barchartGroup(1, barsSpace, barsWidth, 'carbohydrates'),
+                    barchartGroup(0, barsSpace, barsWidth, i18n.protein),
+                    barchartGroup(1, barsSpace, barsWidth, i18n.carbohydrates),
                     barchartGroup(
                       2,
                       barsSpace,
                       barsWidth,
-                      'carbohydratesSugar',
+                      i18n.carbohydratesSugar,
                     ),
-                    barchartGroup(3, barsSpace, barsWidth, 'fat'),
-                    barchartGroup(4, barsSpace, barsWidth, 'fatSaturated'),
+                    barchartGroup(3, barsSpace, barsWidth, i18n.fat),
+                    barchartGroup(4, barsSpace, barsWidth, i18n.saturatedFat),
                     if (widget._nutritionalPlan.nutritionalGoals.fiber != null)
-                      barchartGroup(5, barsSpace, barsWidth, 'fiber'),
+                      barchartGroup(5, barsSpace, barsWidth, i18n.fiber),
                   ],
                 ),
               ),

lib/widgets/nutrition/meal.dart

@@ -285,7 +285,7 @@ class MealHeader extends StatelessWidget {
   }
 }
 
-class MealIngredientsSection extends StatelessWidget {
+class MealIngredientsSection extends ConsumerWidget {
   const MealIngredientsSection({
     super.key,
     required this.meal,
@@ -301,7 +301,7 @@ class MealIngredientsSection extends StatelessWidget {
   }
 
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context, WidgetRef ref) {
     return Column(
       children: [
         if (showIngredientsDetails(viewMode)) ...[
@@ -340,9 +340,11 @@ class MealIngredientsSection extends StatelessWidget {
   }
 
   Widget _buildTotalRow(BuildContext context) {
+    final i18n = AppLocalizations.of(context);
+
     return NutritionTile(
       vPadding: 0,
-      leading: const Text('total'),
+      leading: Text(i18n.total),
       title: getNutritionRow(
         context,
         muted(getNutritionalValues(meal.plannedNutritionalValues, context)),

lib/widgets/nutrition/nutritional_plan_detail.dart

@@ -42,22 +42,26 @@ class NutritionalPlanDetailWidget extends riverpod.ConsumerWidget {
         ? nutritionalGoals / lastWeightEntry.weight.toDouble()
         : null;
 
+    final i18n = AppLocalizations.of(context);
+    final locale = Localizations.localeOf(context).languageCode;
+    final startDateFormatted = DateFormat.yMd(locale).format(_nutritionalPlan.startDate);
+
+    String dateDisplay;
+    if (_nutritionalPlan.endDate != null) {
+      final endDateFormatted = DateFormat.yMd(locale).format(_nutritionalPlan.endDate!);
+      dateDisplay = i18n.planDateRange(startDateFormatted, endDateFormatted);
+    } else {
+      dateDisplay = '${i18n.planStartDate(startDateFormatted)} (${i18n.openEnded})';
+    }
+
     return SliverList(
       delegate: SliverChildListDelegate(
         [
           const SizedBox(height: 16),
           Padding(
             padding: const EdgeInsets.symmetric(horizontal: 16.0),
             child: Text(
-              _nutritionalPlan.endDate != null
-                  ? 'from ${DateFormat.yMd(
-                      Localizations.localeOf(context).languageCode,
-                    ).format(_nutritionalPlan.startDate)} to ${DateFormat.yMd(
-                      Localizations.localeOf(context).languageCode,
-                    ).format(_nutritionalPlan.endDate!)}'
-                  : 'from ${DateFormat.yMd(
-                      Localizations.localeOf(context).languageCode,
-                    ).format(_nutritionalPlan.startDate)} (${AppLocalizations.of(context).openEnded})',
+              dateDisplay,
               style: Theme.of(context).textTheme.titleSmall?.copyWith(
                 fontStyle: FontStyle.italic,
               ),
@@ -83,7 +87,7 @@ class NutritionalPlanDetailWidget extends riverpod.ConsumerWidget {
             ),
           ),
           MealWidget(
-            _nutritionalPlan.pseudoMealOthers('Other logs'),
+            _nutritionalPlan.pseudoMealOthers(i18n.otherLogs),
             false,
             true,
           ),