* Extended functionalities

* Added different UIs

meal-plan-frontend-mobile/app/(main)/(tabs)/_layout.tsx

@@ -0,0 +1,80 @@
+import type { ComponentProps } from 'react';
+import { Tabs } from 'expo-router';
+import { useTranslation } from 'react-i18next';
+import FontAwesome from '@expo/vector-icons/FontAwesome';
+import { useAppearance } from '@/src/context/AppearanceContext';
+
+function TabIcon(props: { name: ComponentProps<typeof FontAwesome>['name']; color: string }) {
+  return <FontAwesome size={22} style={{ marginBottom: -2 }} name={props.name} color={props.color} />;
+}
+
+export default function TabLayout() {
+  const { t } = useTranslation();
+  const { colors } = useAppearance();
+
+  return (
+    <Tabs
+      screenOptions={{
+        headerShown: false,
+        tabBarActiveTintColor: colors.brand,
+        tabBarInactiveTintColor: colors.textMuted,
+        tabBarStyle: {
+          backgroundColor: colors.surface,
+          borderTopColor: colors.border,
+        },
+        headerStyle: { backgroundColor: colors.surface },
+        headerTintColor: colors.text,
+      }}
+    >
+      <Tabs.Screen
+        name="index"
+        options={{
+          title: t('nav.dashboard'),
+          tabBarIcon: ({ color }) => <TabIcon name="home" color={String(color)} />,
+        }}
+      />
+      <Tabs.Screen
+        name="meals"
+        options={{
+          title: t('nav.allMeals'),
+          tabBarIcon: ({ color }) => <TabIcon name="list" color={String(color)} />,
+        }}
+      />
+      <Tabs.Screen
+        name="diet"
+        options={{
+          title: t('nav.dietTracker'),
+          tabBarIcon: ({ color }) => <TabIcon name="heartbeat" color={String(color)} />,
+        }}
+      />
+      <Tabs.Screen
+        name="planner"
+        options={{
+          title: t('nav.planner'),
+          tabBarIcon: ({ color }) => <TabIcon name="calendar" color={String(color)} />,
+        }}
+      />
+      <Tabs.Screen
+        name="shopping"
+        options={{
+          title: t('nav.shopping'),
+          tabBarIcon: ({ color }) => <TabIcon name="shopping-cart" color={String(color)} />,
+        }}
+      />
+      <Tabs.Screen
+        name="manage"
+        options={{
+          title: t('nav.manageMeals'),
+          tabBarIcon: ({ color }) => <TabIcon name="plus-square" color={String(color)} />,
+        }}
+      />
+      <Tabs.Screen
+        name="settings"
+        options={{
+          title: t('nav.settings'),
+          tabBarIcon: ({ color }) => <TabIcon name="cog" color={String(color)} />,
+        }}
+      />
+    </Tabs>
+  );
+}

meal-plan-frontend-mobile/app/(main)/(tabs)/diet.tsx

@@ -0,0 +1,945 @@
+import { useCallback, useEffect, useMemo, useState } from 'react';
+import { Pressable, ScrollView, StyleSheet, Text, View } from 'react-native';
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+import {
+  copyYesterdayMeals,
+  createReminder,
+  deleteDrink,
+  deleteMeal,
+  deleteReminder,
+  fetchDailySummary,
+  fetchDrinkCatalog,
+  fetchFavoriteCatalogItems,
+  fetchFavoriteRecipes,
+  fetchGoals,
+  fetchHistory,
+  fetchMealSuggestions,
+  fetchRecentMeals,
+  fetchReminders,
+  logDrink,
+  logMeal,
+  previewMeal,
+  saveGoals,
+  updateReminder,
+} from '@/src/api/diet.api';
+import { fetchIngredientCatalogItems } from '@/src/api/ingredient-catalog.api';
+import { fetchRecipes } from '@/src/api/recipes.api';
+import { Button } from '@/src/components/Button';
+import { DateNavigator } from '@/src/components/DateNavigator';
+import { ErrorView } from '@/src/components/ErrorView';
+import { Input } from '@/src/components/Input';
+import { Screen } from '@/src/components/Screen';
+import { SimpleBarChart } from '@/src/components/SimpleBarChart';
+import { useAppearance } from '@/src/context/AppearanceContext';
+import {
+  CONSUMPTION_CATEGORIES,
+  DietReminderType,
+  REMINDER_DAYS_MASK_ALL,
+  todayIso,
+  type DietSuggestion,
+  type LogMealInput,
+  type MealPreview,
+  type UserDailyGoals,
+} from '@/src/types/diet';
+import { extractApiError } from '@/src/utils/apiError';
+import { historyRange } from '@/src/utils/date';
+import { ingredientDisplayName } from '@/src/utils/ingredient-catalog.util';
+import { nextSort, sortBy, sortIndicator, type SortDirection } from '@/src/utils/sort';
+
+type MealLogSortColumn = 'name' | 'calories';
+type DrinkLogSortColumn = 'name' | 'volume';
+type ReminderSortColumn = 'title' | 'time';
+
+type Tab = 'today' | 'goals' | 'reminders' | 'history';
+
+function mealMacroLine(m: {
+  calories?: number | null;
+  proteinG?: number | null;
+  fatG?: number | null;
+  carbsG?: number | null;
+}): string {
+  if (m.calories == null) return '';
+  return `${m.calories} kcal · P ${Number(m.proteinG ?? 0).toFixed(1)}g · F ${Number(m.fatG ?? 0).toFixed(1)}g · C ${Number(m.carbsG ?? 0).toFixed(1)}g`;
+}
+
+function ProgressCard({
+  label,
+  consumed,
+  goal,
+  remaining,
+  unit,
+  remainingLabel,
+}: {
+  label: string;
+  consumed: number;
+  goal?: number | null;
+  remaining?: number | null;
+  unit: string;
+  remainingLabel: string;
+}) {
+  const { colors } = useAppearance();
+  const pct = goal && goal > 0 ? Math.min((consumed / goal) * 100, 100) : 0;
+
+  return (
+    <View style={[styles.progressCard, { backgroundColor: colors.surface, borderColor: colors.border }]}>
+      <Text style={[styles.progressLabel, { color: colors.textMuted }]}>{label}</Text>
+      <Text style={[styles.progressValue, { color: colors.text }]}>
+        {consumed}
+        {goal != null ? (
+          <Text style={{ fontSize: 14, color: colors.textMuted }}>
+            {' '}
+            / {goal}
+            {unit}
+          </Text>
+        ) : null}
+      </Text>
+      {remaining != null ? (
+        <Text style={{ color: colors.textMuted, fontSize: 12 }}>
+          {remainingLabel}: {remaining}
+          {unit}
+        </Text>
+      ) : null}
+      {goal != null ? (
+        <View style={[styles.progressTrack, { backgroundColor: colors.background }]}>
+          <View style={[styles.progressFill, { width: `${pct}%`, backgroundColor: colors.brand }]} />
+        </View>
+      ) : null}
+    </View>
+  );
+}
+
+export default function DietScreen() {
+  const { t, i18n } = useTranslation();
+  const { colors } = useAppearance();
+  const queryClient = useQueryClient();
+  const [tab, setTab] = useState<Tab>('today');
+  const [date, setDate] = useState(todayIso());
+
+  const [mealCategory, setMealCategory] = useState(2);
+  const [recipeSearch, setRecipeSearch] = useState('');
+  const [selectedRecipeId, setSelectedRecipeId] = useState<number | null>(null);
+  const [customMealName, setCustomMealName] = useState('');
+  const [portions, setPortions] = useState('1');
+  const [catalogItemId, setCatalogItemId] = useState<number | null>(null);
+  const [grams, setGrams] = useState('150');
+  const [mealPreview, setMealPreview] = useState<MealPreview | null>(null);
+  const [goalsForm, setGoalsForm] = useState<UserDailyGoals>({});
+  const [reminderTitle, setReminderTitle] = useState('');
+  const [reminderTime, setReminderTime] = useState('09:00');
+  const [reminderType, setReminderType] = useState(DietReminderType.Water);
+  const [editingReminderId, setEditingReminderId] = useState<number | null>(null);
+  const [mealSort, setMealSort] = useState<{ column: MealLogSortColumn; direction: SortDirection }>({
+    column: 'name',
+    direction: 'asc',
+  });
+  const [drinkSort, setDrinkSort] = useState<{ column: DrinkLogSortColumn; direction: SortDirection }>({
+    column: 'name',
+    direction: 'asc',
+  });
+  const [reminderSort, setReminderSort] = useState<{ column: ReminderSortColumn; direction: SortDirection }>({
+    column: 'time',
+    direction: 'asc',
+  });
+
+  const summaryQuery = useQuery({
+    queryKey: ['diet', 'summary', date],
+    queryFn: () => fetchDailySummary(date),
+  });
+
+  const suggestionsQuery = useQuery({
+    queryKey: ['diet', 'suggestions', date],
+    queryFn: () => fetchMealSuggestions(date),
+    enabled: tab === 'today' && !!summaryQuery.data,
+  });
+
+  const catalogQuery = useQuery({
+    queryKey: ['diet', 'catalog'],
+    queryFn: fetchDrinkCatalog,
+  });
+
+  const ingredientItemsQuery = useQuery({
+    queryKey: ['ingredient-catalog', 'all'],
+    queryFn: () => fetchIngredientCatalogItems(),
+  });
+
+  const recipesQuery = useQuery({
+    queryKey: ['recipes', 'diet', recipeSearch],
+    queryFn: () => fetchRecipes({ search: recipeSearch }),
+    enabled: recipeSearch.trim().length >= 2,
+  });
+
+  const goalsQuery = useQuery({
+    queryKey: ['diet', 'goals'],
+    queryFn: fetchGoals,
+    enabled: tab === 'goals',
+  });
+
+  const remindersQuery = useQuery({
+    queryKey: ['diet', 'reminders'],
+    queryFn: fetchReminders,
+    enabled: tab === 'reminders',
+  });
+
+  const recentsQuery = useQuery({
+    queryKey: ['diet', 'recents'],
+    queryFn: () => fetchRecentMeals(8),
+    enabled: tab === 'today',
+  });
+
+  const favoriteRecipesQuery = useQuery({
+    queryKey: ['diet', 'favorites', 'recipes'],
+    queryFn: fetchFavoriteRecipes,
+    enabled: tab === 'today',
+  });
+
+  const favoriteCatalogQuery = useQuery({
+    queryKey: ['diet', 'favorites', 'catalog'],
+    queryFn: fetchFavoriteCatalogItems,
+    enabled: tab === 'today',
+  });
+
+  const historyRangeValues = historyRange(14);
+  const historyQuery = useQuery({
+    queryKey: ['diet', 'history', historyRangeValues.from, historyRangeValues.to],
+    queryFn: () => fetchHistory(historyRangeValues.from, historyRangeValues.to),
+    enabled: tab === 'history',
+  });
+
+  useEffect(() => {
+    if (goalsQuery.data) setGoalsForm(goalsQuery.data);
+  }, [goalsQuery.data]);
+
+  const invalidate = () => void queryClient.invalidateQueries({ queryKey: ['diet'] });
+
+  const resetMealForm = () => {
+    setRecipeSearch('');
+    setSelectedRecipeId(null);
+    setCustomMealName('');
+    setCatalogItemId(null);
+    setPortions('1');
+    setGrams('150');
+    setMealPreview(null);
+  };
+
+  const buildMealPayload = useCallback((): LogMealInput | null => {
+    if (selectedRecipeId) {
+      return {
+        recipeId: selectedRecipeId,
+        mealCategory,
+        logDate: date,
+        portions: Number(portions) || 1,
+      };
+    }
+    const gramsNum = Number(grams);
+    if (catalogItemId && gramsNum > 0) {
+      return { catalogItemId, grams: gramsNum, mealCategory, logDate: date };
+    }
+    if (customMealName.trim()) {
+      return { name: customMealName.trim(), mealCategory, logDate: date };
+    }
+    return null;
+  }, [catalogItemId, customMealName, date, grams, mealCategory, portions, selectedRecipeId]);
+
+  useEffect(() => {
+    const payload = buildMealPayload();
+    if (!payload) {
+      setMealPreview(null);
+      return;
+    }
+    const timer = setTimeout(() => {
+      void previewMeal(payload, date)
+        .then(setMealPreview)
+        .catch(() => setMealPreview(null));
+    }, 250);
+    return () => clearTimeout(timer);
+  }, [buildMealPayload, date]);
+
+  const logMealMutation = useMutation({
+    mutationFn: logMeal,
+    onSuccess: () => {
+      resetMealForm();
+      invalidate();
+    },
+  });
+
+  const logDrinkMutation = useMutation({ mutationFn: logDrink, onSuccess: invalidate });
+  const saveGoalsMutation = useMutation({ mutationFn: saveGoals, onSuccess: invalidate });
+  const createReminderMutation = useMutation({
+    mutationFn: createReminder,
+    onSuccess: () => {
+      setReminderTitle('');
+      setEditingReminderId(null);
+      void queryClient.invalidateQueries({ queryKey: ['diet', 'reminders'] });
+    },
+  });
+  const updateReminderMutation = useMutation({
+    mutationFn: ({ id, input }: { id: number; input: Parameters<typeof updateReminder>[1] }) => updateReminder(id, input),
+    onSuccess: () => {
+      setReminderTitle('');
+      setEditingReminderId(null);
+      void queryClient.invalidateQueries({ queryKey: ['diet', 'reminders'] });
+    },
+  });
+  const copyYesterdayMutation = useMutation({
+    mutationFn: () => copyYesterdayMeals(date),
+    onSuccess: () => invalidate(),
+  });
+  const deleteMealMutation = useMutation({ mutationFn: deleteMeal, onSuccess: invalidate });
+  const deleteDrinkMutation = useMutation({ mutationFn: deleteDrink, onSuccess: invalidate });
+  const deleteReminderMutation = useMutation({
+    mutationFn: deleteReminder,
+    onSuccess: () => void queryClient.invalidateQueries({ queryKey: ['diet', 'reminders'] }),
+  });
+
+  const tabs: { id: Tab; label: string }[] = [
+    { id: 'today', label: t('diet.tabToday') },
+    { id: 'history', label: t('diet.tabHistory') },
+    { id: 'goals', label: t('diet.tabGoals') },
+    { id: 'reminders', label: t('diet.tabReminders') },
+  ];
+
+  const summary = summaryQuery.data;
+  const suggestions = suggestionsQuery.data ?? [];
+  const ingredientItems = ingredientItemsQuery.data ?? [];
+
+  const suggestionName = (s: DietSuggestion) =>
+    i18n.language.startsWith('pl') && s.namePl ? s.namePl : s.name;
+
+  const canLogMeal = buildMealPayload() != null;
+
+  const sortedMeals = useMemo(() => {
+    if (!summary) return [];
+    const { column, direction } = mealSort;
+    return sortBy(summary.meals, direction, (meal) => (column === 'name' ? meal.name : meal.calories));
+  }, [summary, mealSort]);
+
+  const sortedDrinks = useMemo(() => {
+    if (!summary) return [];
+    const { column, direction } = drinkSort;
+    return sortBy(summary.drinks, direction, (drink) =>
+      column === 'name' ? drink.name : drink.volumeMl,
+    );
+  }, [summary, drinkSort]);
+
+  const sortedReminders = useMemo(() => {
+    const { column, direction } = reminderSort;
+    return sortBy(remindersQuery.data ?? [], direction, (reminder) =>
+      column === 'title' ? reminder.title : reminder.timeOfDay,
+    );
+  }, [remindersQuery.data, reminderSort]);
+
+  return (
+    <Screen title={t('diet.title')} subtitle={t('diet.subtitle')}>
+      <ScrollView contentContainerStyle={styles.scroll} keyboardShouldPersistTaps="handled">
+        <DateNavigator date={date} onChange={setDate} />
+
+        <View style={styles.tabs}>
+          {tabs.map(({ id, label }) => (
+            <Pressable
+              key={id}
+              onPress={() => setTab(id)}
+              style={[
+                styles.tab,
+                {
+                  backgroundColor: tab === id ? colors.brand : colors.surface,
+                  borderColor: tab === id ? colors.brand : colors.border,
+                },
+              ]}
+            >
+              <Text style={{ color: tab === id ? '#fff' : colors.text, fontWeight: '600', fontSize: 13 }}>
+                {label}
+              </Text>
+            </Pressable>
+          ))}
+        </View>
+
+        {tab === 'today' && (
+          <>
+            {summaryQuery.isLoading ? (
+              <Text style={{ color: colors.textMuted }}>{t('common.loading')}</Text>
+            ) : summaryQuery.isError ? (
+              <ErrorView
+                message={extractApiError(summaryQuery.error, t('errors.loadDietFailed'))}
+                onRetry={() => summaryQuery.refetch()}
+              />
+            ) : summary ? (
+              <>
+                <ProgressCard
+                  label={t('diet.calories')}
+                  consumed={summary.calories.consumed}
+                  goal={summary.calories.goal}
+                  remaining={summary.calories.remaining}
+                  unit=" kcal"
+                  remainingLabel={t('diet.remaining')}
+                />
+                <ProgressCard
+                  label={t('diet.water')}
+                  consumed={summary.waterMl.consumed}
+                  goal={summary.waterMl.goal}
+                  remaining={summary.waterMl.remaining}
+                  unit="ml"
+                  remainingLabel={t('diet.remaining')}
+                />
+                <ProgressCard
+                  label={t('recipes.protein')}
+                  consumed={Number(summary.proteinG.consumed)}
+                  goal={summary.proteinG.goal != null ? Number(summary.proteinG.goal) : null}
+                  remaining={summary.proteinG.remaining != null ? Number(summary.proteinG.remaining) : null}
+                  unit="g"
+                  remainingLabel={t('diet.remaining')}
+                />
+                <ProgressCard
+                  label={t('recipes.fat')}
+                  consumed={Number(summary.fatG.consumed)}
+                  goal={summary.fatG.goal != null ? Number(summary.fatG.goal) : null}
+                  remaining={summary.fatG.remaining != null ? Number(summary.fatG.remaining) : null}
+                  unit="g"
+                  remainingLabel={t('diet.remaining')}
+                />
+                <ProgressCard
+                  label={t('recipes.carbs')}
+                  consumed={Number(summary.carbsG.consumed)}
+                  goal={summary.carbsG.goal != null ? Number(summary.carbsG.goal) : null}
+                  remaining={summary.carbsG.remaining != null ? Number(summary.carbsG.remaining) : null}
+                  unit="g"
+                  remainingLabel={t('diet.remaining')}
+                />
+
+                <Text style={[styles.section, { color: colors.text }]}>{t('diet.quickLog')}</Text>
+                <Button
+                  title={t('diet.copyYesterday')}
+                  variant="secondary"
+                  loading={copyYesterdayMutation.isPending}
+                  onPress={() => copyYesterdayMutation.mutate()}
+                />
+                {(recentsQuery.data?.length ?? 0) > 0 ? (
+                  <>
+                    <Text style={[styles.label, { color: colors.text }]}>{t('diet.recents')}</Text>
+                    <View style={styles.chips}>
+                      {recentsQuery.data!.map((meal, idx) => (
+                        <Pressable
+                          key={`${meal.name}-${idx}`}
+                          disabled={logMealMutation.isPending}
+                          onPress={() => {
+                            const payload: LogMealInput = { mealCategory: meal.mealCategory, logDate: date, portions: Number(meal.portions) || 1 };
+                            if (meal.recipeId) payload.recipeId = meal.recipeId;
+                            else if (meal.catalogItemId && meal.grams) {
+                              payload.catalogItemId = meal.catalogItemId;
+                              payload.grams = Number(meal.grams);
+                            } else payload.name = meal.name;
+                            logMealMutation.mutate(payload);
+                          }}
+                          style={[styles.chip, { borderColor: colors.border, backgroundColor: colors.surface }]}
+                        >
+                          <Text style={{ color: colors.text, fontSize: 12 }}>{meal.name}</Text>
+                        </Pressable>
+                      ))}
+                    </View>
+                  </>
+                ) : null}
+                {(favoriteRecipesQuery.data?.length ?? 0) > 0 ? (
+                  <>
+                    <Text style={[styles.label, { color: colors.text }]}>{t('diet.favoriteRecipes')}</Text>
+                    <View style={styles.chips}>
+                      {favoriteRecipesQuery.data!.map((fav) => (
+                        <Pressable
+                          key={fav.recipeId}
+                          disabled={logMealMutation.isPending}
+                          onPress={() =>
+                            logMealMutation.mutate({ recipeId: fav.recipeId, mealCategory, logDate: date, portions: 1 })
+                          }
+                          style={[styles.chip, { borderColor: colors.border, backgroundColor: colors.surface }]}
+                        >
+                          <Text style={{ color: colors.text, fontSize: 12 }}>{fav.name}</Text>
+                        </Pressable>
+                      ))}
+                    </View>
+                  </>
+                ) : null}
+                {(favoriteCatalogQuery.data?.length ?? 0) > 0 ? (
+                  <>
+                    <Text style={[styles.label, { color: colors.text }]}>{t('diet.favoriteCatalog')}</Text>
+                    <View style={styles.chips}>
+                      {favoriteCatalogQuery.data!.map((fav) => (
+                        <Pressable
+                          key={fav.catalogItemId}
+                          disabled={logMealMutation.isPending}
+                          onPress={() =>
+                            logMealMutation.mutate({
+                              catalogItemId: fav.catalogItemId,
+                              grams: 150,
+                              mealCategory,
+                              logDate: date,
+                            })
+                          }
+                          style={[styles.chip, { borderColor: colors.border, backgroundColor: colors.surface }]}
+                        >
+                          <Text style={{ color: colors.text, fontSize: 12 }}>
+                            {i18n.language.startsWith('pl') && fav.namePl ? fav.namePl : fav.name}
+                          </Text>
+                        </Pressable>
+                      ))}
+                    </View>
+                  </>
+                ) : null}
+
+                {suggestions.length > 0 ? (
+                  <>
+                    <Text style={[styles.section, { color: colors.text }]}>{t('diet.suggestionsTitle')}</Text>
+                    <Text style={{ color: colors.textMuted, fontSize: 13 }}>{t('diet.suggestionsHint')}</Text>
+                    {suggestions.map((s) => (
+                      <View
+                        key={s.catalogItemId}
+                        style={[styles.suggestionRow, { borderColor: colors.border, backgroundColor: colors.surface }]}
+                      >
+                        <View style={{ flex: 1 }}>
+                          <Text style={{ color: colors.text, fontWeight: '600' }}>{suggestionName(s)}</Text>
+                          <Text style={{ color: colors.textMuted, fontSize: 12 }}>
+                            {s.suggestedGrams}g · {s.calories ?? '?'} kcal · P {Number(s.proteinG ?? 0).toFixed(1)}g ·{' '}
+                            {t(`diet.suggestionReasons.${s.reasonKey}`)}
+                          </Text>
+                        </View>
+                        <Button
+                          title={`+ ${t('diet.logSuggestion')}`}
+                          variant="secondary"
+                          loading={logMealMutation.isPending}
+                          onPress={() =>
+                            logMealMutation.mutate({
+                              catalogItemId: s.catalogItemId,
+                              grams: s.suggestedGrams,
+                              mealCategory,
+                              logDate: date,
+                            })
+                          }
+                        />
+                      </View>
+                    ))}
+                  </>
+                ) : null}
+
+                <Text style={[styles.section, { color: colors.text }]}>{t('diet.logDrink')}</Text>
+                <View style={styles.chips}>
+                  {catalogQuery.data?.map((item) => (
+                    <Pressable
+                      key={item.id}
+                      disabled={logDrinkMutation.isPending}
+                      onPress={() =>
+                        logDrinkMutation.mutate({
+                          drinkCatalogId: item.id,
+                          volumeMl: item.defaultVolumeMl,
+                          logDate: date,
+                        })
+                      }
+                      style={[styles.chip, { borderColor: colors.border, backgroundColor: colors.surface }]}
+                    >
+                      <Text style={{ color: colors.text }}>
+                        {item.iconEmoji ?? '🥤'} {item.name} +{item.defaultVolumeMl}ml
+                      </Text>
+                    </Pressable>
+                  ))}
+                </View>
+
+                <Text style={[styles.section, { color: colors.text }]}>{t('diet.logMeal')}</Text>
+                <Text style={[styles.label, { color: colors.text }]}>{t('common.category')}</Text>
+                <View style={styles.chips}>
+                  {CONSUMPTION_CATEGORIES.map((c) => (
+                    <Pressable
+                      key={c.value}
+                      onPress={() => setMealCategory(c.value)}
+                      style={[
+                        styles.chip,
+                        {
+                          backgroundColor: mealCategory === c.value ? colors.brand : colors.surface,
+                          borderColor: mealCategory === c.value ? colors.brand : colors.border,
+                        },
+                      ]}
+                    >
+                      <Text style={{ color: mealCategory === c.value ? '#fff' : colors.text, fontSize: 12 }}>
+                        {t(c.labelKey)}
+                      </Text>
+                    </Pressable>
+                  ))}
+                </View>
+                <Input
+                  placeholder={t('recipes.searchRecipes')}
+                  value={recipeSearch}
+                  onChangeText={(v) => {
+                    setRecipeSearch(v);
+                    setSelectedRecipeId(null);
+                    setCatalogItemId(null);
+                  }}
+                />
+                {recipesQuery.data?.map((r) => (
+                  <Pressable
+                    key={r.id}
+                    onPress={() => {
+                      setSelectedRecipeId(r.id);
+                      setCustomMealName('');
+                      setCatalogItemId(null);
+                    }}
+                    style={[
+                      styles.recipePick,
+                      {
+                        backgroundColor: selectedRecipeId === r.id ? colors.brand : colors.surface,
+                        borderColor: colors.border,
+                      },
+                    ]}
+                  >
+                    <Text style={{ color: selectedRecipeId === r.id ? '#fff' : colors.text }}>{r.name}</Text>
+                  </Pressable>
+                ))}
+                <Input
+                  label={t('diet.portions')}
+                  keyboardType="decimal-pad"
+                  value={portions}
+                  onChangeText={setPortions}
+                />
+                <Text style={[styles.label, { color: colors.text }]}>{t('diet.fromCatalog')}</Text>
+                <ScrollView horizontal showsHorizontalScrollIndicator={false} contentContainerStyle={styles.chips}>
+                  <Pressable
+                    onPress={() => setCatalogItemId(null)}
+                    style={[
+                      styles.chip,
+                      {
+                        backgroundColor: catalogItemId == null ? colors.brand : colors.surface,
+                        borderColor: catalogItemId == null ? colors.brand : colors.border,
+                      },
+                    ]}
+                  >
+                    <Text style={{ color: catalogItemId == null ? '#fff' : colors.text, fontSize: 12 }}>
+                      {t('diet.noCatalogItem')}
+                    </Text>
+                  </Pressable>
+                  {ingredientItems.map((item) => (
+                    <Pressable
+                      key={item.id}
+                      onPress={() => {
+                        setCatalogItemId(item.id);
+                        setSelectedRecipeId(null);
+                        setCustomMealName('');
+                      }}
+                      style={[
+                        styles.chip,
+                        {
+                          backgroundColor: catalogItemId === item.id ? colors.brand : colors.surface,
+                          borderColor: catalogItemId === item.id ? colors.brand : colors.border,
+                        },
+                      ]}
+                    >
+                      <Text style={{ color: catalogItemId === item.id ? '#fff' : colors.text, fontSize: 12 }}>
+                        {ingredientDisplayName(item, i18n.language)}
+                      </Text>
+                    </Pressable>
+                  ))}
+                </ScrollView>
+                {catalogItemId ? (
+                  <Input
+                    label={t('diet.grams')}
+                    keyboardType="numeric"
+                    value={grams}
+                    onChangeText={setGrams}
+                  />
+                ) : null}
+                <Input
+                  label={t('diet.orCustomMeal')}
+                  value={customMealName}
+                  onChangeText={(v) => {
+                    setCustomMealName(v);
+                    setSelectedRecipeId(null);
+                    setCatalogItemId(null);
+                  }}
+                />
+                {mealPreview ? (
+                  <View style={[styles.previewBox, { borderColor: colors.brand, backgroundColor: colors.surface }]}>
+                    <Text style={{ color: colors.text, fontWeight: '700' }}>
+                      {t('diet.mealPreview')}: {mealPreview.meal.name}
+                    </Text>
+                    <Text style={{ color: colors.text, marginTop: 6, fontSize: 13 }}>
+                      {mealPreview.meal.calories ?? '?'} kcal · P {Number(mealPreview.meal.proteinG ?? 0).toFixed(1)}g · F{' '}
+                      {Number(mealPreview.meal.fatG ?? 0).toFixed(1)}g · C {Number(mealPreview.meal.carbsG ?? 0).toFixed(1)}g
+                    </Text>
+                    <Text style={{ color: colors.textMuted, marginTop: 6, fontSize: 13 }}>
+                      {t('diet.remainingAfter')}: {mealPreview.remainingAfter.calories ?? '?'} kcal, P{' '}
+                      {mealPreview.remainingAfter.proteinG ?? '?'}g, F {mealPreview.remainingAfter.fatG ?? '?'}g, C{' '}
+                      {mealPreview.remainingAfter.carbsG ?? '?'}g
+                    </Text>
+                  </View>
+                ) : null}
+                <Button
+                  title={t('diet.markEaten')}
+                  loading={logMealMutation.isPending}
+                  disabled={!canLogMeal}
+                  onPress={() => {
+                    const payload = buildMealPayload();
+                    if (payload) logMealMutation.mutate(payload);
+                  }}
+                />
+
+                <Text style={[styles.section, { color: colors.text }]}>{t('diet.mealsToday')}</Text>
+                {summary.meals.length > 0 ? (
+                  <View style={styles.sortRow}>
+                    <SortChip
+                      label={`${t('ingredientCatalog.columns.name')}${sortIndicator(mealSort, 'name')}`}
+                      active={mealSort.column === 'name'}
+                      onPress={() => setMealSort((current) => nextSort(current, 'name'))}
+                    />
+                    <SortChip
+                      label={`${t('recipes.calories')}${sortIndicator(mealSort, 'calories')}`}
+                      active={mealSort.column === 'calories'}
+                      onPress={() => setMealSort((current) => nextSort(current, 'calories'))}
+                    />
+                  </View>
+                ) : null}
+                {summary.meals.length === 0 ? (
+                  <Text style={{ color: colors.textMuted }}>{t('diet.nothingLogged')}</Text>
+                ) : (
+                  sortedMeals.map((m) => (
+                    <View key={m.id} style={[styles.logRow, { borderColor: colors.border }]}>
+                      <View style={{ flex: 1 }}>
+                        <Text style={{ color: colors.text, fontWeight: '600' }}>{m.name}</Text>
+                        <Text style={{ color: colors.textMuted, fontSize: 12 }}>
+                          {mealMacroLine(m) || t('diet.noMacros')}
+                        </Text>
+                      </View>
+                      <Button title="✕" variant="ghost" onPress={() => deleteMealMutation.mutate(m.id)} />
+                    </View>
+                  ))
+                )}
+
+                <Text style={[styles.section, { color: colors.text }]}>{t('diet.drinksToday')}</Text>
+                {summary.drinks.length > 0 ? (
+                  <View style={styles.sortRow}>
+                    <SortChip
+                      label={`${t('ingredientCatalog.columns.name')}${sortIndicator(drinkSort, 'name')}`}
+                      active={drinkSort.column === 'name'}
+                      onPress={() => setDrinkSort((current) => nextSort(current, 'name'))}
+                    />
+                    <SortChip
+                      label={`${t('diet.water')}${sortIndicator(drinkSort, 'volume')}`}
+                      active={drinkSort.column === 'volume'}
+                      onPress={() => setDrinkSort((current) => nextSort(current, 'volume'))}
+                    />
+                  </View>
+                ) : null}
+                {summary.drinks.length === 0 ? (
+                  <Text style={{ color: colors.textMuted }}>{t('diet.nothingLogged')}</Text>
+                ) : (
+                  sortedDrinks.map((d) => (
+                    <View key={d.id} style={[styles.logRow, { borderColor: colors.border }]}>
+                      <View style={{ flex: 1 }}>
+                        <Text style={{ color: colors.text, fontWeight: '600' }}>{d.name}</Text>
+                        <Text style={{ color: colors.textMuted, fontSize: 12 }}>{d.volumeMl} ml</Text>
+                      </View>
+                      <Button title="✕" variant="ghost" onPress={() => deleteDrinkMutation.mutate(d.id)} />
+                    </View>
+                  ))
+                )}
+              </>
+            ) : null}
+          </>
+        )}
+
+        {tab === 'goals' && (
+          <>
+            <Text style={{ color: colors.textMuted, marginBottom: 8 }}>{t('diet.goalsHint')}</Text>
+            {(
+              [
+                ['calorieGoal', 'diet.calorieGoal'],
+                ['proteinGoalG', 'manage.proteinG'],
+                ['fatGoalG', 'manage.fatG'],
+                ['carbsGoalG', 'manage.carbsG'],
+                ['waterGoalMl', 'diet.waterGoal'],
+              ] as const
+            ).map(([key, labelKey]) => (
+              <Input
+                key={key}
+                label={t(labelKey)}
+                keyboardType="numeric"
+                value={goalsForm[key]?.toString() ?? ''}
+                onChangeText={(v) =>
+                  setGoalsForm((prev) => ({
+                    ...prev,
+                    [key]: v === '' ? null : Number(v),
+                  }))
+                }
+              />
+            ))}
+            <Button
+              title={t('diet.saveGoals')}
+              loading={saveGoalsMutation.isPending}
+              onPress={() => saveGoalsMutation.mutate(goalsForm)}
+            />
+          </>
+        )}
+
+        {tab === 'history' && (
+          <>
+            {historyQuery.isLoading ? (
+              <Text style={{ color: colors.textMuted }}>{t('common.loading')}</Text>
+            ) : historyQuery.isError ? (
+              <ErrorView message={t('errors.loadHistoryFailed')} onRetry={() => historyQuery.refetch()} />
+            ) : (
+              <>
+                <Text style={{ color: colors.textMuted, fontSize: 13 }}>{t('diet.historyHint')}</Text>
+                <SimpleBarChart
+                  unit=" kcal"
+                  data={(historyQuery.data ?? []).map((day) => ({
+                    label: day.date.slice(5),
+                    value: day.calories,
+                  }))}
+                />
+                {(historyQuery.data ?? []).map((day) => (
+                  <View key={day.date} style={[styles.logRow, { borderColor: colors.border }]}>
+                    <View style={{ flex: 1 }}>
+                      <Text style={{ color: colors.text, fontWeight: '600' }}>{day.date}</Text>
+                      <Text style={{ color: colors.textMuted, fontSize: 12 }}>
+                        {day.calories} kcal · P {Number(day.proteinG).toFixed(0)}g · {day.mealCount} {t('diet.mealsShort')}
+                      </Text>
+                    </View>
+                  </View>
+                ))}
+              </>
+            )}
+          </>
+        )}
+
+        {tab === 'reminders' && (
+          <>
+            <Input
+              label={t('diet.reminderTitle')}
+              value={reminderTitle}
+              onChangeText={setReminderTitle}
+              placeholder={t('diet.reminderTitlePlaceholder')}
+            />
+            <Input label={t('diet.reminderTime')} value={reminderTime} onChangeText={setReminderTime} />
+            <Button
+              title={editingReminderId ? t('diet.updateReminder') : t('diet.saveReminder')}
+              loading={createReminderMutation.isPending || updateReminderMutation.isPending}
+              disabled={!reminderTitle.trim()}
+              onPress={() => {
+                const payload = {
+                  reminderType,
+                  title: reminderTitle.trim(),
+                  timeOfDay: reminderTime,
+                  daysOfWeekMask: REMINDER_DAYS_MASK_ALL,
+                };
+                if (editingReminderId) {
+                  updateReminderMutation.mutate({ id: editingReminderId, input: payload });
+                } else {
+                  createReminderMutation.mutate(payload);
+                }
+              }}
+            />
+            {editingReminderId ? (
+              <Button
+                title={t('common.cancel')}
+                variant="ghost"
+                onPress={() => {
+                  setEditingReminderId(null);
+                  setReminderTitle('');
+                  setReminderTime('09:00');
+                }}
+              />
+            ) : null}
+            <Text style={[styles.section, { color: colors.text }]}>{t('diet.yourReminders')}</Text>
+            {(remindersQuery.data?.length ?? 0) > 0 ? (
+              <View style={styles.sortRow}>
+                <SortChip
+                  label={`${t('diet.reminderTitle')}${sortIndicator(reminderSort, 'title')}`}
+                  active={reminderSort.column === 'title'}
+                  onPress={() => setReminderSort((current) => nextSort(current, 'title'))}
+                />
+                <SortChip
+                  label={`${t('diet.reminderTime')}${sortIndicator(reminderSort, 'time')}`}
+                  active={reminderSort.column === 'time'}
+                  onPress={() => setReminderSort((current) => nextSort(current, 'time'))}
+                />
+              </View>
+            ) : null}
+            {remindersQuery.data?.length === 0 ? (
+              <Text style={{ color: colors.textMuted }}>{t('diet.noReminders')}</Text>
+            ) : (
+              sortedReminders.map((r) => (
+                <View key={r.id} style={[styles.logRow, { borderColor: colors.border }]}>
+                  <Pressable
+                    style={{ flex: 1 }}
+                    onPress={() => {
+                      setEditingReminderId(r.id);
+                      setReminderTitle(r.title);
+                      setReminderTime(r.timeOfDay.slice(0, 5));
+                      setReminderType(r.reminderType);
+                    }}
+                  >
+                    <Text style={{ color: colors.text, fontWeight: '600' }}>{r.title}</Text>
+                    <Text style={{ color: colors.textMuted, fontSize: 12 }}>{r.timeOfDay.slice(0, 5)}</Text>
+                  </Pressable>
+                  <Button title={t('common.edit')} variant="ghost" onPress={() => {
+                    setEditingReminderId(r.id);
+                    setReminderTitle(r.title);
+                    setReminderTime(r.timeOfDay.slice(0, 5));
+                    setReminderType(r.reminderType);
+                  }} />
+                  <Button title="✕" variant="ghost" onPress={() => deleteReminderMutation.mutate(r.id)} />
+                </View>
+              ))
+            )}
+          </>
+        )}
+      </ScrollView>
+    </Screen>
+  );
+}
+
+function SortChip({ label, active, onPress }: { label: string; active: boolean; onPress: () => void }) {
+  const { colors } = useAppearance();
+  return (
+    <Pressable
+      onPress={onPress}
+      style={[
+        styles.sortChip,
+        {
+          backgroundColor: active ? colors.brand : colors.surface,
+          borderColor: active ? colors.brand : colors.border,
+        },
+      ]}
+    >
+      <Text style={{ color: active ? '#fff' : colors.text, fontWeight: '600', fontSize: 12 }}>{label}</Text>
+    </Pressable>
+  );
+}
+
+const styles = StyleSheet.create({
+  scroll: { gap: 12, paddingBottom: 32 },
+  tabs: { flexDirection: 'row', flexWrap: 'wrap', gap: 8 },
+  tab: { borderWidth: 1, borderRadius: 999, paddingHorizontal: 14, paddingVertical: 8 },
+  section: { fontSize: 17, fontWeight: '700', marginTop: 8 },
+  label: { fontSize: 14, fontWeight: '600' },
+  chips: { flexDirection: 'row', flexWrap: 'wrap', gap: 8 },
+  chip: { borderWidth: 1, borderRadius: 12, paddingHorizontal: 10, paddingVertical: 8 },
+  recipePick: { borderWidth: 1, borderRadius: 10, padding: 10 },
+  suggestionRow: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    borderWidth: 1,
+    borderRadius: 12,
+    padding: 10,
+    gap: 8,
+  },
+  previewBox: { borderWidth: 1, borderRadius: 12, padding: 12 },
+  sortRow: { flexDirection: 'row', flexWrap: 'wrap', gap: 8 },
+  sortChip: { borderWidth: 1, borderRadius: 999, paddingHorizontal: 12, paddingVertical: 6 },
+  logRow: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    borderWidth: 1,
+    borderRadius: 12,
+    padding: 10,
+    gap: 8,
+  },
+  progressCard: { borderWidth: 1, borderRadius: 14, padding: 14, gap: 6 },
+  progressLabel: { fontSize: 13, fontWeight: '600' },
+  progressValue: { fontSize: 22, fontWeight: '700' },
+  progressTrack: { height: 8, borderRadius: 999, overflow: 'hidden', marginTop: 4 },
+  progressFill: { height: '100%', borderRadius: 999 },
+});

meal-plan-frontend-mobile/app/(main)/(tabs)/index.tsx

@@ -0,0 +1,198 @@
+import { router } from 'expo-router';
+import { ActivityIndicator, Pressable, ScrollView, StyleSheet, Text, View } from 'react-native';
+import { useQuery } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+import { fetchCategories } from '@/src/api/recipes.api';
+import { ErrorView } from '@/src/components/ErrorView';
+import { Screen } from '@/src/components/Screen';
+import { useAuth } from '@/src/context/AuthContext';
+import { useAppearance } from '@/src/context/AppearanceContext';
+import { MealCategory } from '@/src/types/recipe';
+import { categoryLabel } from '@/src/utils/recipe';
+
+const CATEGORY_EMOJI: Record<MealCategory, string> = {
+  [MealCategory.Breakfast]: '🍳',
+  [MealCategory.SecondBreakfast]: '🥐',
+  [MealCategory.Lunch]: '🍲',
+  [MealCategory.Dinner]: '🌙',
+};
+
+export default function DashboardScreen() {
+  const { t } = useTranslation();
+  const { user } = useAuth();
+  const { colors } = useAppearance();
+
+  const categoriesQuery = useQuery({
+    queryKey: ['categories'],
+    queryFn: fetchCategories,
+  });
+
+  const welcome = user?.userName
+    ? t('dashboard.welcomeNamed', { name: user.userName })
+    : t('dashboard.welcome');
+
+  return (
+    <Screen title={welcome} subtitle={t('dashboard.subtitle')}>
+      {categoriesQuery.isLoading ? (
+        <View style={styles.loading}>
+          <ActivityIndicator size="large" color={colors.brand} />
+        </View>
+      ) : categoriesQuery.isError ? (
+        <ErrorView
+          message={t('errors.loadCategoriesFailed')}
+          onRetry={() => categoriesQuery.refetch()}
+        />
+      ) : (
+        <ScrollView contentContainerStyle={styles.list}>
+          <Pressable
+            onPress={() => router.push('/(main)/(tabs)/meals')}
+            style={({ pressed }) => [
+              styles.allCard,
+              {
+                backgroundColor: colors.brand,
+                opacity: pressed ? 0.9 : 1,
+              },
+            ]}
+          >
+            <Text style={styles.allTitle}>{t('nav.allMeals')}</Text>
+            <Text style={styles.allSubtitle}>{t('dashboard.viewRecipes')}</Text>
+          </Pressable>
+
+          <Pressable
+            onPress={() => router.push('/(main)/ingredients')}
+            style={({ pressed }) => [
+              styles.card,
+              {
+                backgroundColor: colors.surface,
+                borderColor: colors.border,
+                opacity: pressed ? 0.9 : 1,
+              },
+            ]}
+          >
+            <Text style={styles.emoji}>🥬</Text>
+            <View style={styles.cardBody}>
+              <Text style={[styles.cardTitle, { color: colors.text }]}>{t('nav.ingredientCatalog')}</Text>
+              <Text style={[styles.cardCount, { color: colors.textMuted }]}>
+                {t('ingredientCatalog.subtitle')}
+              </Text>
+            </View>
+          </Pressable>
+
+          <Pressable
+            onPress={() => router.push('/(main)/diet-generator')}
+            style={({ pressed }) => [
+              styles.card,
+              {
+                backgroundColor: colors.surface,
+                borderColor: colors.border,
+                opacity: pressed ? 0.9 : 1,
+              },
+            ]}
+          >
+            <Text style={styles.emoji}>✨</Text>
+            <View style={styles.cardBody}>
+              <Text style={[styles.cardTitle, { color: colors.text }]}>{t('nav.dietGenerator')}</Text>
+              <Text style={[styles.cardCount, { color: colors.textMuted }]}>
+                {t('generators.diet.subtitle')}
+              </Text>
+            </View>
+          </Pressable>
+
+          <Pressable
+            onPress={() => router.push('/(main)/recipe-generator')}
+            style={({ pressed }) => [
+              styles.card,
+              {
+                backgroundColor: colors.surface,
+                borderColor: colors.border,
+                opacity: pressed ? 0.9 : 1,
+              },
+            ]}
+          >
+            <Text style={styles.emoji}>🤖</Text>
+            <View style={styles.cardBody}>
+              <Text style={[styles.cardTitle, { color: colors.text }]}>{t('nav.recipeGenerator')}</Text>
+              <Text style={[styles.cardCount, { color: colors.textMuted }]}>
+                {t('generators.recipe.subtitle')}
+              </Text>
+            </View>
+          </Pressable>
+
+          {(categoriesQuery.data ?? []).map((item) => (
+            <Pressable
+              key={item.category}
+              onPress={() => router.push(`/(main)/category/${item.category}`)}
+              style={({ pressed }) => [
+                styles.card,
+                {
+                  backgroundColor: colors.surface,
+                  borderColor: colors.border,
+                  opacity: pressed ? 0.9 : 1,
+                },
+              ]}
+            >
+              <Text style={styles.emoji}>{CATEGORY_EMOJI[item.category as MealCategory] ?? '🍽️'}</Text>
+              <View style={styles.cardBody}>
+                <Text style={[styles.cardTitle, { color: colors.text }]}>
+                  {categoryLabel(item.category, t)}
+                </Text>
+                <Text style={[styles.cardCount, { color: colors.textMuted }]}>
+                  {t('common.recipeCount', { count: item.count })}
+                </Text>
+              </View>
+            </Pressable>
+          ))}
+        </ScrollView>
+      )}
+    </Screen>
+  );
+}
+
+const styles = StyleSheet.create({
+  list: {
+    gap: 12,
+    paddingBottom: 24,
+  },
+  allCard: {
+    borderRadius: 16,
+    padding: 18,
+    gap: 4,
+  },
+  allTitle: {
+    color: '#fff',
+    fontSize: 20,
+    fontWeight: '700',
+  },
+  allSubtitle: {
+    color: 'rgba(255,255,255,0.9)',
+    fontSize: 14,
+  },
+  card: {
+    borderWidth: 1,
+    borderRadius: 16,
+    padding: 16,
+    flexDirection: 'row',
+    alignItems: 'center',
+    gap: 14,
+  },
+  emoji: {
+    fontSize: 28,
+  },
+  cardBody: {
+    flex: 1,
+    gap: 2,
+  },
+  cardTitle: {
+    fontSize: 18,
+    fontWeight: '600',
+  },
+  cardCount: {
+    fontSize: 14,
+  },
+  loading: {
+    flex: 1,
+    alignItems: 'center',
+    justifyContent: 'center',
+    paddingVertical: 40,
+  },
+});

meal-plan-frontend-mobile/app/(main)/(tabs)/manage.tsx

@@ -0,0 +1,362 @@
+import { useState } from 'react';
+import { Alert, Pressable, ScrollView, StyleSheet, Text, View } from 'react-native';
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+import { fetchIngredientCatalogItems } from '@/src/api/ingredient-catalog.api';
+import { createRecipe } from '@/src/api/recipes.api';
+import { Button } from '@/src/components/Button';
+import { ExcelImportPanel } from '@/src/components/ExcelImportPanel';
+import { Input } from '@/src/components/Input';
+import { Screen } from '@/src/components/Screen';
+import { useAppearance } from '@/src/context/AppearanceContext';
+import { MealCategory } from '@/src/types/recipe';
+import { ALL_CATEGORIES, categoryLabel, parseOptionalNumber } from '@/src/utils/recipe';
+import { extractApiError } from '@/src/utils/apiError';
+import { ingredientDisplayName } from '@/src/utils/ingredient-catalog.util';
+
+type ManageTab = 'manual' | 'import';
+
+interface IngredientRow {
+  name: string;
+  amountGrams: string;
+  unit: string;
+  catalogItemId: number | null;
+}
+
+interface StepRow {
+  description: string;
+}
+
+export default function ManageScreen() {
+  const { t, i18n } = useTranslation();
+  const { colors } = useAppearance();
+  const queryClient = useQueryClient();
+  const [manageTab, setManageTab] = useState<ManageTab>('manual');
+
+  const catalogQuery = useQuery({
+    queryKey: ['ingredient-catalog', 'all'],
+    queryFn: () => fetchIngredientCatalogItems(),
+  });
+
+  const [name, setName] = useState('');
+  const [category, setCategory] = useState<MealCategory>(MealCategory.Lunch);
+  const [prepTime, setPrepTime] = useState('');
+  const [calories, setCalories] = useState('');
+  const [protein, setProtein] = useState('');
+  const [fat, setFat] = useState('');
+  const [carbs, setCarbs] = useState('');
+  const [ingredients, setIngredients] = useState<IngredientRow[]>([
+    { name: '', amountGrams: '', unit: '', catalogItemId: null },
+  ]);
+  const [steps, setSteps] = useState<StepRow[]>([{ description: '' }]);
+  const [error, setError] = useState<string | null>(null);
+
+  const saveMutation = useMutation({
+    mutationFn: createRecipe,
+    onSuccess: (recipe) => {
+      queryClient.invalidateQueries({ queryKey: ['recipes'] });
+      queryClient.invalidateQueries({ queryKey: ['categories'] });
+      Alert.alert(t('manage.title'), t('manage.savedSuccess', { name: recipe.name }));
+      setName('');
+      setPrepTime('');
+      setCalories('');
+      setProtein('');
+      setFat('');
+      setCarbs('');
+      setIngredients([{ name: '', amountGrams: '', unit: '', catalogItemId: null }]);
+      setSteps([{ description: '' }]);
+      setError(null);
+    },
+    onError: (err) => {
+      setError(extractApiError(err, t('errors.saveRecipeFailed')));
+    },
+  });
+
+  function validate(): string | null {
+    if (!name.trim()) return t('validation.recipeNameRequired');
+    const validSteps = steps.filter((s) => s.description.trim());
+    if (validSteps.length === 0) return t('validation.stepsMin');
+    return null;
+  }
+
+  function handleSave() {
+    const validationError = validate();
+    if (validationError) {
+      setError(validationError);
+      return;
+    }
+
+    const filteredIngredients = ingredients
+      .filter((i) => i.name.trim())
+      .map((i, index) => ({
+        name: i.name.trim(),
+        amountGrams: parseOptionalNumber(i.amountGrams),
+        unit: i.unit,
+        catalogItemId: i.catalogItemId,
+        sortOrder: index,
+      }));
+
+    const filteredSteps = steps
+      .filter((s) => s.description.trim())
+      .map((s, index) => ({
+        stepNumber: index + 1,
+        description: s.description.trim(),
+      }));
+
+    saveMutation.mutate({
+      name: name.trim(),
+      mealCategory: category,
+      calories: parseOptionalNumber(calories),
+      protein: parseOptionalNumber(protein),
+      fat: parseOptionalNumber(fat),
+      carbs: parseOptionalNumber(carbs),
+      prepTimeMinutes: parseOptionalNumber(prepTime),
+      ingredients: filteredIngredients,
+      steps: filteredSteps,
+    });
+  }
+
+  const catalogItems = catalogQuery.data ?? [];
+
+  return (
+    <Screen title={t('manage.title')} subtitle={t('manage.subtitle')}>
+      <View style={styles.tabs}>
+        {(['manual', 'import'] as ManageTab[]).map((tab) => (
+          <Pressable
+            key={tab}
+            onPress={() => setManageTab(tab)}
+            style={[styles.tab, { backgroundColor: manageTab === tab ? colors.brand : colors.surface, borderColor: manageTab === tab ? colors.brand : colors.border }]}
+          >
+            <Text style={{ color: manageTab === tab ? '#fff' : colors.text, fontWeight: '600', fontSize: 13 }}>
+              {t(tab === 'manual' ? 'manage.tabManual' : 'manage.tabImport')}
+            </Text>
+          </Pressable>
+        ))}
+      </View>
+
+      {manageTab === 'import' ? (
+        <ExcelImportPanel onImported={() => queryClient.invalidateQueries({ queryKey: ['recipes'] })} />
+      ) : (
+      <ScrollView contentContainerStyle={styles.scroll} keyboardShouldPersistTaps="handled">
+        <Text style={[styles.section, { color: colors.text }]}>{t('manage.basicInfo')}</Text>
+        <Input
+          label={t('manage.recipeName')}
+          placeholder={t('manage.recipeNamePlaceholder')}
+          value={name}
+          onChangeText={setName}
+        />
+
+        <Text style={[styles.label, { color: colors.text }]}>{t('common.category')}</Text>
+        <View style={styles.chips}>
+          {ALL_CATEGORIES.map((cat) => {
+            const selected = category === cat;
+            return (
+              <Pressable
+                key={cat}
+                onPress={() => setCategory(cat)}
+                style={[
+                  styles.chip,
+                  {
+                    backgroundColor: selected ? colors.brand : colors.surface,
+                    borderColor: selected ? colors.brand : colors.border,
+                  },
+                ]}
+              >
+                <Text style={{ color: selected ? '#fff' : colors.text, fontSize: 13 }}>
+                  {categoryLabel(cat, t)}
+                </Text>
+              </Pressable>
+            );
+          })}
+        </View>
+
+        <View style={styles.row}>
+          <View style={styles.half}>
+            <Input
+              label={t('manage.prepTimeMin')}
+              keyboardType="numeric"
+              value={prepTime}
+              onChangeText={setPrepTime}
+            />
+          </View>
+          <View style={styles.half}>
+            <Input
+              label={t('manage.caloriesKcal')}
+              keyboardType="numeric"
+              value={calories}
+              onChangeText={setCalories}
+            />
+          </View>
+        </View>
+
+        <View style={styles.row}>
+          <View style={styles.third}>
+            <Input label={t('manage.proteinG')} keyboardType="numeric" value={protein} onChangeText={setProtein} />
+          </View>
+          <View style={styles.third}>
+            <Input label={t('manage.fatG')} keyboardType="numeric" value={fat} onChangeText={setFat} />
+          </View>
+          <View style={styles.third}>
+            <Input label={t('manage.carbsG')} keyboardType="numeric" value={carbs} onChangeText={setCarbs} />
+          </View>
+        </View>
+
+        <Text style={[styles.section, { color: colors.text }]}>{t('recipes.ingredients')}</Text>
+        {ingredients.map((ing, index) => (
+          <View key={index} style={styles.block}>
+            <Input
+              label={t('manage.ingredientName')}
+              value={ing.name}
+              onChangeText={(value) => {
+                const next = [...ingredients];
+                next[index] = { ...next[index], name: value };
+                setIngredients(next);
+              }}
+            />
+            <Text style={[styles.label, { color: colors.text }]}>{t('manage.catalogItem')}</Text>
+            <ScrollView horizontal showsHorizontalScrollIndicator={false} contentContainerStyle={styles.chips}>
+              <Pressable
+                onPress={() => {
+                  const next = [...ingredients];
+                  next[index] = { ...next[index], catalogItemId: null };
+                  setIngredients(next);
+                }}
+                style={[styles.chip, { backgroundColor: ing.catalogItemId == null ? colors.brand : colors.surface, borderColor: ing.catalogItemId == null ? colors.brand : colors.border }]}
+              >
+                <Text style={{ color: ing.catalogItemId == null ? '#fff' : colors.text, fontSize: 12 }}>{t('diet.noCatalogItem')}</Text>
+              </Pressable>
+              {catalogItems.map((item) => (
+                <Pressable
+                  key={item.id}
+                  onPress={() => {
+                    const next = [...ingredients];
+                    next[index] = { ...next[index], catalogItemId: item.id, name: ingredientDisplayName(item, i18n.language) };
+                    setIngredients(next);
+                  }}
+                  style={[styles.chip, { backgroundColor: ing.catalogItemId === item.id ? colors.brand : colors.surface, borderColor: ing.catalogItemId === item.id ? colors.brand : colors.border }]}
+                >
+                  <Text style={{ color: ing.catalogItemId === item.id ? '#fff' : colors.text, fontSize: 12 }}>{ingredientDisplayName(item, i18n.language)}</Text>
+                </Pressable>
+              ))}
+            </ScrollView>
+            <View style={styles.row}>
+              <View style={styles.half}>
+                <Input
+                  label={t('manage.ingredientGrams')}
+                  keyboardType="numeric"
+                  value={ing.amountGrams}
+                  onChangeText={(value) => {
+                    const next = [...ingredients];
+                    next[index] = { ...next[index], amountGrams: value };
+                    setIngredients(next);
+                  }}
+                />
+              </View>
+              <View style={styles.half}>
+                <Input
+                  label={t('manage.ingredientUnit')}
+                  value={ing.unit}
+                  onChangeText={(value) => {
+                    const next = [...ingredients];
+                    next[index] = { ...next[index], unit: value };
+                    setIngredients(next);
+                  }}
+                />
+              </View>
+            </View>
+            {ingredients.length > 1 ? (
+              <Button
+                title={t('manage.removeIngredient')}
+                variant="ghost"
+                onPress={() => setIngredients(ingredients.filter((_, i) => i !== index))}
+              />
+            ) : null}
+          </View>
+        ))}
+        <Button
+          title={t('common.add')}
+          variant="secondary"
+          onPress={() => setIngredients([...ingredients, { name: '', amountGrams: '', unit: '', catalogItemId: null }])}
+        />
+
+        <Text style={[styles.section, { color: colors.text }]}>{t('manage.preparationSteps')}</Text>
+        {steps.map((step, index) => (
+          <View key={index} style={styles.block}>
+            <Input
+              label={`${index + 1}.`}
+              placeholder={t('manage.stepPlaceholder')}
+              value={step.description}
+              onChangeText={(value) => {
+                const next = [...steps];
+                next[index] = { description: value };
+                setSteps(next);
+              }}
+              multiline
+            />
+            {steps.length > 1 ? (
+              <Button
+                title={t('manage.removeStep')}
+                variant="ghost"
+                onPress={() => setSteps(steps.filter((_, i) => i !== index))}
+              />
+            ) : null}
+          </View>
+        ))}
+        <Button title={t('manage.addStep')} variant="secondary" onPress={() => setSteps([...steps, { description: '' }])} />
+
+        {error ? <Text style={[styles.error, { color: colors.danger }]}>{error}</Text> : null}
+        <Button
+          title={saveMutation.isPending ? t('manage.saving') : t('manage.saveRecipe')}
+          loading={saveMutation.isPending}
+          onPress={handleSave}
+        />
+      </ScrollView>
+      )}
+    </Screen>
+  );
+}
+
+const styles = StyleSheet.create({
+  scroll: {
+    gap: 12,
+    paddingBottom: 32,
+  },
+  tabs: { flexDirection: 'row', gap: 8, marginBottom: 8 },
+  tab: { borderWidth: 1, borderRadius: 999, paddingHorizontal: 14, paddingVertical: 8 },
+  section: {
+    fontSize: 18,
+    fontWeight: '700',
+    marginTop: 4,
+  },
+  label: {
+    fontSize: 14,
+    fontWeight: '600',
+  },
+  chips: {
+    flexDirection: 'row',
+    flexWrap: 'wrap',
+    gap: 8,
+  },
+  chip: {
+    borderWidth: 1,
+    borderRadius: 999,
+    paddingHorizontal: 12,
+    paddingVertical: 8,
+  },
+  row: {
+    flexDirection: 'row',
+    gap: 10,
+  },
+  half: {
+    flex: 1,
+  },
+  third: {
+    flex: 1,
+  },
+  block: {
+    gap: 8,
+  },
+  error: {
+    fontSize: 14,
+  },
+});

meal-plan-frontend-mobile/app/(main)/(tabs)/meals.tsx

@@ -0,0 +1,163 @@
+import { router } from 'expo-router';
+import { useMemo, useState } from 'react';
+import { ActivityIndicator, FlatList, Pressable, ScrollView, StyleSheet, Text, View } from 'react-native';
+import { useQuery } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+import { fetchRecipes } from '@/src/api/recipes.api';
+import { EmptyState, RecipeCard } from '@/src/components/RecipeCard';
+import { ErrorView } from '@/src/components/ErrorView';
+import { Input } from '@/src/components/Input';
+import { Screen } from '@/src/components/Screen';
+import { useAppearance } from '@/src/context/AppearanceContext';
+import { nextSort, sortBy, sortIndicator, type SortDirection } from '@/src/utils/sort';
+
+type RecipeSortColumn = 'name' | 'calories' | 'prepTime';
+
+const RECIPE_SORT_COLUMNS: { id: RecipeSortColumn; labelKey: string }[] = [
+  { id: 'name', labelKey: 'manage.recipeName' },
+  { id: 'calories', labelKey: 'recipes.calories' },
+  { id: 'prepTime', labelKey: 'manage.prepTimeMin' },
+];
+
+export default function MealsScreen() {
+  const { t } = useTranslation();
+  const { colors } = useAppearance();
+  const [search, setSearch] = useState('');
+  const [ingredient, setIngredient] = useState('');
+  const [recipeSort, setRecipeSort] = useState<{ column: RecipeSortColumn; direction: SortDirection }>({
+    column: 'name',
+    direction: 'asc',
+  });
+
+  const recipesQuery = useQuery({
+    queryKey: ['recipes', search, ingredient],
+    queryFn: () =>
+      fetchRecipes({
+        search: search.trim() || undefined,
+        ingredient: ingredient.trim() || undefined,
+      }),
+  });
+
+  const emptyMessage = useMemo(() => {
+    if (ingredient.trim()) return t('recipes.noMatchingIngredient');
+    return t('recipes.noMatchingFilter');
+  }, [ingredient, t]);
+
+  const sortedRecipes = useMemo(() => {
+    const list = recipesQuery.data ?? [];
+    const { column, direction } = recipeSort;
+    return sortBy(list, direction, (recipe) => {
+      switch (column) {
+        case 'name':
+          return recipe.name;
+        case 'calories':
+          return recipe.calories;
+        case 'prepTime':
+          return recipe.prepTimeMinutes;
+      }
+    });
+  }, [recipesQuery.data, recipeSort]);
+
+  return (
+    <Screen title={t('recipes.allMealsTitle')} subtitle={t('recipes.allMealsSubtitle')}>
+      <View style={styles.filters}>
+        <Input
+          placeholder={t('recipes.searchRecipes')}
+          value={search}
+          onChangeText={setSearch}
+          autoCapitalize="none"
+        />
+        <Input
+          placeholder={t('recipes.searchByIngredient')}
+          value={ingredient}
+          onChangeText={setIngredient}
+          autoCapitalize="none"
+        />
+      </View>
+
+      {(recipesQuery.data?.length ?? 0) > 0 ? (
+        <ScrollView horizontal showsHorizontalScrollIndicator={false} contentContainerStyle={styles.sortRow}>
+          {RECIPE_SORT_COLUMNS.map(({ id, labelKey }) => (
+            <SortChip
+              key={id}
+              label={`${t(labelKey)}${sortIndicator(recipeSort, id)}`}
+              active={recipeSort.column === id}
+              onPress={() => setRecipeSort((current) => nextSort(current, id))}
+            />
+          ))}
+        </ScrollView>
+      ) : null}
+
+      {recipesQuery.isLoading ? (
+        <View style={styles.loading}>
+          <ActivityIndicator size="large" color={colors.brand} />
+        </View>
+      ) : recipesQuery.isError ? (
+        <ErrorView
+          message={t('errors.loadRecipesFailed')}
+          onRetry={() => recipesQuery.refetch()}
+        />
+      ) : (
+        <FlatList
+          data={sortedRecipes}
+          keyExtractor={(item) => String(item.id)}
+          contentContainerStyle={styles.list}
+          ListEmptyComponent={
+            <EmptyState title={t('recipes.noMatchingTitle')} description={emptyMessage} />
+          }
+          renderItem={({ item }) => (
+            <RecipeCard
+              recipe={item}
+              onPress={() => router.push(`/(main)/recipe/${item.id}`)}
+            />
+          )}
+        />
+      )}
+    </Screen>
+  );
+}
+
+function SortChip({ label, active, onPress }: { label: string; active: boolean; onPress: () => void }) {
+  const { colors } = useAppearance();
+  return (
+    <Pressable
+      onPress={onPress}
+      style={[
+        styles.sortChip,
+        {
+          backgroundColor: active ? colors.brand : colors.surface,
+          borderColor: active ? colors.brand : colors.border,
+        },
+      ]}
+    >
+      <Text style={{ color: active ? '#fff' : colors.text, fontWeight: '600', fontSize: 12 }}>{label}</Text>
+    </Pressable>
+  );
+}
+
+const styles = StyleSheet.create({
+  filters: {
+    gap: 10,
+  },
+  sortRow: {
+    gap: 8,
+    paddingBottom: 8,
+  },
+  sortChip: {
+    borderWidth: 1,
+    borderRadius: 999,
+    paddingHorizontal: 12,
+    paddingVertical: 6,
+  },
+  list: {
+    gap: 10,
+    paddingBottom: 24,
+    flexGrow: 1,
+  },
+  loading: {
+    flex: 1,
+    alignItems: 'center',
+    justifyContent: 'center',
+    paddingVertical: 40,
+  },
+});

meal-plan-frontend-mobile/app/(main)/(tabs)/planner.tsx

@@ -0,0 +1,348 @@
+import { useMemo, useState } from 'react';
+import { Alert, Modal, Pressable, ScrollView, StyleSheet, Text, View } from 'react-native';
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import { router } from 'expo-router';
+import { useTranslation } from 'react-i18next';
+import { deleteMealPlanEntry, fetchMealPlanEntries, upsertMealPlanEntry } from '@/src/api/meal-plan.api';
+import { fetchGoals } from '@/src/api/diet.api';
+import { fetchRecipes } from '@/src/api/recipes.api';
+import { Button } from '@/src/components/Button';
+import { ErrorView } from '@/src/components/ErrorView';
+import { Input } from '@/src/components/Input';
+import { Screen } from '@/src/components/Screen';
+import { useAppearance } from '@/src/context/AppearanceContext';
+import { CONSUMPTION_CATEGORIES } from '@/src/types/diet';
+import type { MealPlanEntry } from '@/src/types/meal-plan';
+import { MealCategory } from '@/src/types/recipe';
+import { addDays, formatDisplayDate, weekDays, weekRange } from '@/src/utils/date';
+import { categoryLabel } from '@/src/utils/recipe';
+import {
+  computeDayMealPlanning,
+  estimateEntryCalories,
+  rankRecipeSuggestions,
+} from '@/src/utils/mealPlannerSuggestions';
+
+const PLANNER_CATEGORIES = CONSUMPTION_CATEGORIES.filter((c) => c.value <= MealCategory.Dinner);
+
+export default function PlannerScreen() {
+  const { t, i18n } = useTranslation();
+  const { colors } = useAppearance();
+  const queryClient = useQueryClient();
+  const [weekAnchor, setWeekAnchor] = useState(() => weekRange().from);
+  const { from, to } = useMemo(() => weekRange(weekAnchor), [weekAnchor]);
+  const days = useMemo(() => weekDays(from), [from]);
+
+  const [picker, setPicker] = useState<{ date: string; mealCategory: number; entry?: MealPlanEntry } | null>(null);
+  const [recipeSearch, setRecipeSearch] = useState('');
+  const [portions, setPortions] = useState('1');
+  const [dailyTargets, setDailyTargets] = useState<Record<string, number>>({});
+  const [selectedRecipeId, setSelectedRecipeId] = useState<number | null>(null);
+
+  const entriesQuery = useQuery({
+    queryKey: ['meal-plan', from, to],
+    queryFn: () => fetchMealPlanEntries(from, to),
+  });
+
+  const goalsQuery = useQuery({
+    queryKey: ['diet-goals'],
+    queryFn: fetchGoals,
+  });
+
+  const recipesQuery = useQuery({
+    queryKey: ['recipes', 'planner-search', recipeSearch],
+    queryFn: () => fetchRecipes({ search: recipeSearch }),
+    enabled: !!picker && recipeSearch.trim().length >= 2,
+  });
+
+  const suggestionsQuery = useQuery({
+    queryKey: ['recipes', 'planner-suggestions', picker?.mealCategory],
+    queryFn: () => fetchRecipes({ category: picker!.mealCategory as MealCategory }),
+    enabled: !!picker,
+  });
+
+  const entries = entriesQuery.data ?? [];
+
+  const dailyTarget = picker
+    ? (dailyTargets[picker.date] ?? goalsQuery.data?.calorieGoal ?? 0)
+    : 0;
+
+  const selectedRecipe = useMemo(() => {
+    if (!selectedRecipeId) return null;
+    return (
+      recipesQuery.data?.find((r) => r.id === selectedRecipeId) ??
+      suggestionsQuery.data?.find((r) => r.id === selectedRecipeId) ??
+      null
+    );
+  }, [selectedRecipeId, recipesQuery.data, suggestionsQuery.data]);
+
+  const estimatedMealCalories = estimateEntryCalories(selectedRecipe, Number(portions) || 1);
+
+  const dayPlanning = useMemo(() => {
+    if (!picker) return null;
+    const pending =
+      estimatedMealCalories != null && estimatedMealCalories > 0
+        ? { category: picker.mealCategory, calories: estimatedMealCalories }
+        : null;
+    return computeDayMealPlanning(picker.date, picker.mealCategory, entries, dailyTarget, pending);
+  }, [picker, entries, dailyTarget, estimatedMealCalories]);
+
+  const suggestions = useMemo(() => {
+    if (!picker || !dayPlanning || !suggestionsQuery.data) return [];
+    return rankRecipeSuggestions(suggestionsQuery.data, picker.mealCategory, dayPlanning.slotTarget);
+  }, [picker, dayPlanning, suggestionsQuery.data]);
+
+  const upsertMutation = useMutation({
+    mutationFn: upsertMealPlanEntry,
+    onSuccess: () => {
+      setPicker(null);
+      setRecipeSearch('');
+      setPortions('1');
+      setSelectedRecipeId(null);
+      void queryClient.invalidateQueries({ queryKey: ['meal-plan'] });
+    },
+  });
+
+  const deleteMutation = useMutation({
+    mutationFn: deleteMealPlanEntry,
+    onSuccess: () => void queryClient.invalidateQueries({ queryKey: ['meal-plan'] }),
+  });
+
+  function selectFromSearch(recipeId: number) {
+    setSelectedRecipeId(recipeId);
+    setRecipeSearch('');
+  }
+
+  function selectFromSuggestion(recipeId: number) {
+    setSelectedRecipeId(recipeId);
+  }
+
+  function clearSelection() {
+    setSelectedRecipeId(null);
+  }
+
+  function entryFor(date: string, mealCategory: number): MealPlanEntry | undefined {
+    return entriesQuery.data?.find((e) => e.planDate === date && e.mealCategory === mealCategory);
+  }
+
+  return (
+    <Screen title={t('planner.title')} subtitle={t('planner.subtitle')}>
+      <View style={styles.header}>
+        <Pressable
+          onPress={() => setWeekAnchor(addDays(from, -7))}
+          style={[styles.navBtn, { borderColor: colors.border, backgroundColor: colors.surface }]}
+        >
+          <Text style={{ color: colors.text }}>‹</Text>
+        </Pressable>
+        <Text style={{ color: colors.text, fontWeight: '700', flex: 1, textAlign: 'center' }}>
+          {formatDisplayDate(from, i18n.language)} – {formatDisplayDate(to, i18n.language)}
+        </Text>
+        <Pressable
+          onPress={() => setWeekAnchor(addDays(from, 7))}
+          style={[styles.navBtn, { borderColor: colors.border, backgroundColor: colors.surface }]}
+        >
+          <Text style={{ color: colors.text }}>›</Text>
+        </Pressable>
+      </View>
+
+      <Button title={t('planner.openShopping')} variant="secondary" onPress={() => router.push('/(main)/(tabs)/shopping')} />
+
+      {entriesQuery.isLoading ? (
+        <Text style={{ color: colors.textMuted }}>{t('common.loading')}</Text>
+      ) : entriesQuery.isError ? (
+        <ErrorView message={t('errors.loadPlannerFailed')} onRetry={() => entriesQuery.refetch()} />
+      ) : (
+        <ScrollView horizontal showsHorizontalScrollIndicator={false}>
+          <View>
+            <View style={styles.row}>
+              <View style={styles.corner} />
+              {days.map((day) => (
+                <View key={day} style={[styles.dayHead, { borderColor: colors.border }]}>
+                  <Text style={{ color: colors.textMuted, fontSize: 11, fontWeight: '600' }}>
+                    {formatDisplayDate(day, i18n.language)}
+                  </Text>
+                </View>
+              ))}
+            </View>
+            {PLANNER_CATEGORIES.map((cat) => (
+              <View key={cat.value} style={styles.row}>
+                <View style={[styles.catLabel, { borderColor: colors.border, backgroundColor: colors.surface }]}>
+                  <Text style={{ color: colors.text, fontSize: 11, fontWeight: '600' }}>{t(cat.labelKey)}</Text>
+                </View>
+                {days.map((day) => {
+                  const entry = entryFor(day, cat.value);
+                  return (
+                    <Pressable
+                      key={`${day}-${cat.value}`}
+                      onPress={() => {
+                        setPicker({ date: day, mealCategory: cat.value, entry });
+                        setRecipeSearch('');
+                        setPortions('1');
+                        setSelectedRecipeId(null);
+                      }}
+                      onLongPress={() => {
+                        if (!entry) return;
+                        Alert.alert(t('planner.removeEntry'), entry.recipeName, [
+                          { text: t('common.cancel'), style: 'cancel' },
+                          { text: t('common.delete'), style: 'destructive', onPress: () => deleteMutation.mutate(entry.id) },
+                        ]);
+                      }}
+                      style={[styles.cell, { borderColor: colors.border, backgroundColor: colors.surface }]}
+                    >
+                      <Text style={{ color: entry ? colors.text : colors.textMuted, fontSize: 11 }} numberOfLines={2}>
+                        {entry?.recipeName ?? '+'}
+                      </Text>
+                    </Pressable>
+                  );
+                })}
+              </View>
+            ))}
+          </View>
+        </ScrollView>
+      )}
+
+      <Modal visible={!!picker} transparent animationType="slide" onRequestClose={() => setPicker(null)}>
+        <View style={styles.modalBackdrop}>
+          <View style={[styles.modal, { backgroundColor: colors.background }]}>
+            <Text style={[styles.modalTitle, { color: colors.text }]}>{t('planner.assignRecipe')}</Text>
+            {picker ? (
+              <Text style={{ color: colors.textMuted, marginBottom: 8 }}>
+                {formatDisplayDate(picker.date, i18n.language)} · {categoryLabel(picker.mealCategory as MealCategory, t)}
+              </Text>
+            ) : null}
+            <Input
+              label={t('planner.dailyTarget')}
+              keyboardType="number-pad"
+              value={String(dailyTarget || '')}
+              onChangeText={(text) => {
+                if (!picker) return;
+                const value = Number(text);
+                setDailyTargets((prev) => ({
+                  ...prev,
+                  [picker.date]: Number.isFinite(value) ? value : 0,
+                }));
+              }}
+            />
+            {dayPlanning && dailyTarget > 0 ? (
+              <View style={[styles.summaryBox, { backgroundColor: colors.surface, borderColor: colors.border }]}>
+                <Text style={{ color: colors.text, fontSize: 13 }}>
+                  {t('planner.daySummary', { logged: dayPlanning.logged, target: dayPlanning.dailyTarget })}
+                </Text>
+                <Text style={{ color: colors.textMuted, fontSize: 11, marginTop: 4 }}>
+                  {t('planner.remaining', { count: Math.max(0, dayPlanning.remaining) })}
+                  {dayPlanning.slotTarget > 0
+                    ? ` · ${t('planner.slotHint', { count: dayPlanning.slotTarget })}`
+                    : ''}
+                  {dayPlanning.pendingCalories > 0
+                    ? ` · ${t('planner.includingSelection', { count: dayPlanning.pendingCalories })}`
+                    : ''}
+                </Text>
+              </View>
+            ) : (
+              <Text style={{ color: colors.textMuted, fontSize: 12 }}>{t('planner.noSuggestions')}</Text>
+            )}
+            {suggestions.length > 0 ? (
+              <View>
+                <Text style={{ color: colors.text, fontWeight: '600', marginBottom: 6 }}>
+                  {t('planner.suggestionsTitle')}
+                </Text>
+                <ScrollView style={{ maxHeight: 160 }}>
+                  {suggestions.map(({ recipe, diff }) => (
+                    <Pressable
+                      key={recipe.id}
+                      onPress={() => selectFromSuggestion(recipe.id)}
+                      style={[
+                        styles.recipePick,
+                        {
+                          borderColor: selectedRecipeId === recipe.id ? colors.brand : colors.border,
+                          borderWidth: selectedRecipeId === recipe.id ? 2 : 1,
+                          backgroundColor: colors.surface,
+                        },
+                      ]}
+                    >
+                      <Text style={{ color: colors.text }}>{recipe.name}</Text>
+                      <Text style={{ color: colors.textMuted, fontSize: 11 }}>
+                        {recipe.calories} kcal{diff > 0 ? ` · ±${diff}` : ''}
+                      </Text>
+                    </Pressable>
+                  ))}
+                </ScrollView>
+              </View>
+            ) : null}
+            <Input placeholder={t('recipes.searchRecipes')} value={recipeSearch} onChangeText={setRecipeSearch} />
+            {recipeSearch.trim().length >= 2 && !selectedRecipeId ? (
+              <ScrollView style={{ maxHeight: 200 }}>
+                {recipesQuery.data?.map((r) => (
+                  <Pressable
+                    key={r.id}
+                    onPress={() => selectFromSearch(r.id)}
+                    style={[styles.recipePick, { borderColor: colors.border, backgroundColor: colors.surface }]}
+                  >
+                    <Text style={{ color: colors.text }}>{r.name}</Text>
+                    {r.calories != null ? (
+                      <Text style={{ color: colors.textMuted, fontSize: 11 }}>{r.calories} kcal</Text>
+                    ) : null}
+                  </Pressable>
+                ))}
+                {recipesQuery.isFetched && !recipesQuery.isLoading && recipesQuery.data?.length === 0 ? (
+                  <Text style={{ color: colors.textMuted, fontSize: 12 }}>{t('recipes.noMatchingTitle')}</Text>
+                ) : null}
+              </ScrollView>
+            ) : null}
+            {selectedRecipe ? (
+              <View style={[styles.summaryBox, { backgroundColor: colors.surface, borderColor: colors.brand }]}>
+                <View style={{ flexDirection: 'row', justifyContent: 'space-between', alignItems: 'center', gap: 8 }}>
+                  <Text style={{ color: colors.text, fontSize: 13, flex: 1 }}>
+                    {t('planner.selectedRecipe', { name: selectedRecipe.name })}
+                    {estimatedMealCalories != null
+                      ? ` · ${estimatedMealCalories} kcal`
+                      : selectedRecipe.calories != null
+                        ? ` · ${selectedRecipe.calories} kcal`
+                        : ''}
+                  </Text>
+                  <Pressable onPress={clearSelection} hitSlop={8}>
+                    <Text style={{ color: colors.textMuted }}>✕</Text>
+                  </Pressable>
+                </View>
+              </View>
+            ) : null}
+            <Input label={t('diet.portions')} keyboardType="decimal-pad" value={portions} onChangeText={setPortions} />
+            {estimatedMealCalories != null ? (
+              <Text style={{ color: colors.textMuted, fontSize: 12 }}>
+                {t('planner.estimatedMeal', { count: estimatedMealCalories })}
+              </Text>
+            ) : null}
+            <Button
+              title={t('common.save')}
+              disabled={!selectedRecipeId || upsertMutation.isPending}
+              onPress={() => {
+                if (!picker || !selectedRecipeId) return;
+                upsertMutation.mutate({
+                  planDate: picker.date,
+                  mealCategory: picker.mealCategory,
+                  recipeId: selectedRecipeId,
+                  portions: Number(portions) || 1,
+                });
+              }}
+            />
+            <Button title={t('common.cancel')} variant="ghost" onPress={() => setPicker(null)} />
+          </View>
+        </View>
+      </Modal>
+    </Screen>
+  );
+}
+
+const styles = StyleSheet.create({
+  header: { flexDirection: 'row', alignItems: 'center', gap: 8, marginBottom: 8 },
+  navBtn: { borderWidth: 1, borderRadius: 8, width: 36, height: 36, alignItems: 'center', justifyContent: 'center' },
+  row: { flexDirection: 'row' },
+  corner: { width: 72 },
+  dayHead: { width: 88, padding: 6, borderWidth: 1, alignItems: 'center' },
+  catLabel: { width: 72, padding: 6, borderWidth: 1, justifyContent: 'center' },
+  cell: { width: 88, height: 56, padding: 6, borderWidth: 1, justifyContent: 'center' },
+  modalBackdrop: { flex: 1, backgroundColor: 'rgba(0,0,0,0.45)', justifyContent: 'flex-end' },
+  modal: { borderTopLeftRadius: 16, borderTopRightRadius: 16, padding: 16, gap: 10, maxHeight: '80%' },
+  modalTitle: { fontSize: 18, fontWeight: '700' },
+  summaryBox: { borderWidth: 1, borderRadius: 10, padding: 10 },
+  recipePick: { borderWidth: 1, borderRadius: 8, padding: 10, marginBottom: 6 },
+});

meal-plan-frontend-mobile/app/(main)/(tabs)/settings.tsx

@@ -0,0 +1,154 @@
+import { router } from 'expo-router';
+import { Pressable, ScrollView, StyleSheet, Text, View } from 'react-native';
+import { useTranslation } from 'react-i18next';
+import { Button } from '@/src/components/Button';
+import { Screen } from '@/src/components/Screen';
+import { useAuth } from '@/src/context/AuthContext';
+import { useAppearance } from '@/src/context/AppearanceContext';
+import { APPEARANCE_OPTIONS } from '@/src/theme/appearance';
+import { setAppLanguage } from '@/src/i18n';
+
+export default function SettingsScreen() {
+  const { t, i18n } = useTranslation();
+  const { user, logout } = useAuth();
+  const { colors, appearanceId, setAppearance } = useAppearance();
+
+  return (
+    <Screen title={t('settings.title')}>
+      <ScrollView contentContainerStyle={styles.scroll}>
+        <Text style={[styles.section, { color: colors.text }]}>{t('settings.account')}</Text>
+        <View style={[styles.card, { backgroundColor: colors.surface, borderColor: colors.border }]}>
+          <Text style={[styles.label, { color: colors.textMuted }]}>{t('auth.email')}</Text>
+          <Text style={[styles.value, { color: colors.text }]}>{user?.email ?? '—'}</Text>
+          {user?.userName ? (
+            <>
+              <Text style={[styles.label, { color: colors.textMuted, marginTop: 8 }]}>
+                {t('auth.displayName')}
+              </Text>
+              <Text style={[styles.value, { color: colors.text }]}>{user.userName}</Text>
+            </>
+          ) : null}
+        </View>
+
+        <Text style={[styles.section, { color: colors.text }]}>{t('settings.preferences')}</Text>
+        <Text style={[styles.subsection, { color: colors.text }]}>{t('language.label')}</Text>
+        <View style={styles.row}>
+          {(['en', 'pl'] as const).map((code) => {
+            const selected = i18n.language.startsWith(code);
+            return (
+              <Pressable
+                key={code}
+                onPress={() => setAppLanguage(code)}
+                style={[
+                  styles.chip,
+                  {
+                    backgroundColor: selected ? colors.brand : colors.surface,
+                    borderColor: selected ? colors.brand : colors.border,
+                  },
+                ]}
+              >
+                <Text style={{ color: selected ? '#fff' : colors.text }}>
+                  {t(`language.${code}`)}
+                </Text>
+              </Pressable>
+            );
+          })}
+        </View>
+
+        <Text style={[styles.subsection, { color: colors.text }]}>{t('appearance.label')}</Text>
+        {APPEARANCE_OPTIONS.map((option) => {
+          const selected = appearanceId === option.id;
+          return (
+            <Pressable
+              key={option.id}
+              onPress={() => setAppearance(option.id)}
+              style={[
+                styles.appearanceRow,
+                {
+                  backgroundColor: colors.surface,
+                  borderColor: selected ? colors.brand : colors.border,
+                },
+              ]}
+            >
+              <View style={[styles.swatch, { backgroundColor: option.swatch }]} />
+              <View style={styles.appearanceText}>
+                <Text style={[styles.appearanceTitle, { color: colors.text }]}>
+                  {t(option.labelKey)}
+                </Text>
+                <Text style={{ color: colors.textMuted }}>{t(option.descriptionKey)}</Text>
+              </View>
+            </Pressable>
+          );
+        })}
+
+        <Button
+          title={t('nav.logout')}
+          variant="danger"
+          onPress={async () => {
+            await logout();
+            router.replace('/(auth)/login');
+          }}
+        />
+      </ScrollView>
+    </Screen>
+  );
+}
+
+const styles = StyleSheet.create({
+  scroll: {
+    gap: 12,
+    paddingBottom: 32,
+  },
+  section: {
+    fontSize: 18,
+    fontWeight: '700',
+    marginTop: 4,
+  },
+  subsection: {
+    fontSize: 15,
+    fontWeight: '600',
+  },
+  card: {
+    borderWidth: 1,
+    borderRadius: 14,
+    padding: 14,
+  },
+  label: {
+    fontSize: 13,
+  },
+  value: {
+    fontSize: 16,
+    fontWeight: '500',
+  },
+  row: {
+    flexDirection: 'row',
+    gap: 10,
+  },
+  chip: {
+    borderWidth: 1,
+    borderRadius: 999,
+    paddingHorizontal: 16,
+    paddingVertical: 10,
+  },
+  appearanceRow: {
+    borderWidth: 1,
+    borderRadius: 14,
+    padding: 12,
+    flexDirection: 'row',
+    alignItems: 'center',
+    gap: 12,
+  },
+  swatch: {
+    width: 28,
+    height: 28,
+    borderRadius: 14,
+  },
+  appearanceText: {
+    flex: 1,
+    gap: 2,
+  },
+  appearanceTitle: {
+    fontWeight: '600',
+    fontSize: 15,
+  },
+});

meal-plan-frontend-mobile/app/(main)/(tabs)/shopping.tsx

@@ -0,0 +1,126 @@
+import { useMemo, useState } from 'react';
+import { Alert, Pressable, ScrollView, StyleSheet, Text, View } from 'react-native';
+import { useQuery } from '@tanstack/react-query';
+import * as Print from 'expo-print';
+import * as Sharing from 'expo-sharing';
+import { useTranslation } from 'react-i18next';
+import { fetchShoppingList } from '@/src/api/meal-plan.api';
+import { Button } from '@/src/components/Button';
+import { ErrorView } from '@/src/components/ErrorView';
+import { Screen } from '@/src/components/Screen';
+import { useAppearance } from '@/src/context/AppearanceContext';
+import { addDays, formatDisplayDate, weekRange } from '@/src/utils/date';
+import { buildShoppingListHtml, formatShoppingQuantity } from '@/src/utils/pdfExport';
+
+export default function ShoppingScreen() {
+  const { t, i18n } = useTranslation();
+  const { colors } = useAppearance();
+  const [weekAnchor, setWeekAnchor] = useState(() => weekRange().from);
+  const { from, to } = useMemo(() => weekRange(weekAnchor), [weekAnchor]);
+  const [checked, setChecked] = useState<Record<string, boolean>>({});
+  const [exporting, setExporting] = useState(false);
+
+  const listQuery = useQuery({
+    queryKey: ['shopping-list', from, to],
+    queryFn: () => fetchShoppingList(from, to),
+  });
+
+  async function handleExportPdf() {
+    const items = listQuery.data ?? [];
+    if (items.length === 0) {
+      Alert.alert(t('errors.pdfNothingToExport'));
+      return;
+    }
+    setExporting(true);
+    try {
+      const html = buildShoppingListHtml(
+        items,
+        t('pdf.shoppingList'),
+        t('pdf.generatedOn', { date: new Date().toLocaleDateString(), count: items.length }),
+        t('pdf.toTaste'),
+      );
+      const { uri } = await Print.printToFileAsync({ html });
+      if (await Sharing.isAvailableAsync()) {
+        await Sharing.shareAsync(uri, { UTI: '.pdf', mimeType: 'application/pdf' });
+      }
+    } catch {
+      Alert.alert(t('errors.pdfGenerateFailed'));
+    } finally {
+      setExporting(false);
+    }
+  }
+
+  return (
+    <Screen title={t('shopping.title')} subtitle={t('shopping.subtitle')}>
+      <View style={styles.header}>
+        <Pressable
+          onPress={() => setWeekAnchor(addDays(from, -7))}
+          style={[styles.navBtn, { borderColor: colors.border, backgroundColor: colors.surface }]}
+        >
+          <Text style={{ color: colors.text }}>‹</Text>
+        </Pressable>
+        <Text style={{ color: colors.text, fontWeight: '700', flex: 1, textAlign: 'center' }}>
+          {formatDisplayDate(from, i18n.language)} – {formatDisplayDate(to, i18n.language)}
+        </Text>
+        <Pressable
+          onPress={() => setWeekAnchor(addDays(from, 7))}
+          style={[styles.navBtn, { borderColor: colors.border, backgroundColor: colors.surface }]}
+        >
+          <Text style={{ color: colors.text }}>›</Text>
+        </Pressable>
+      </View>
+
+      <Button
+        title={exporting ? t('pdf.generating') : t('pdf.generate')}
+        variant="secondary"
+        loading={exporting}
+        onPress={() => void handleExportPdf()}
+      />
+
+      {listQuery.isLoading ? (
+        <Text style={{ color: colors.textMuted }}>{t('common.loading')}</Text>
+      ) : listQuery.isError ? (
+        <ErrorView message={t('errors.loadShoppingFailed')} onRetry={() => listQuery.refetch()} />
+      ) : (listQuery.data?.length ?? 0) === 0 ? (
+        <Text style={{ color: colors.textMuted }}>{t('shopping.empty')}</Text>
+      ) : (
+        <ScrollView contentContainerStyle={styles.list}>
+          {listQuery.data!.map((item) => {
+            const key = item.name;
+            const isChecked = checked[key] ?? false;
+            return (
+              <Pressable
+                key={key}
+                onPress={() => setChecked((prev) => ({ ...prev, [key]: !isChecked }))}
+                style={[styles.row, { borderColor: colors.border, backgroundColor: colors.surface }]}
+              >
+                <View style={[styles.checkbox, { borderColor: colors.brand, backgroundColor: isChecked ? colors.brand : 'transparent' }]}>
+                  {isChecked ? <Text style={{ color: '#fff', fontSize: 12 }}>✓</Text> : null}
+                </View>
+                <View style={{ flex: 1 }}>
+                  <Text style={{ color: isChecked ? colors.textMuted : colors.text, textDecorationLine: isChecked ? 'line-through' : 'none', fontWeight: '600' }}>
+                    {item.name}
+                  </Text>
+                  {item.breakdown.length > 0 ? (
+                    <Text style={{ color: colors.textMuted, fontSize: 11 }}>{item.breakdown.join(' · ')}</Text>
+                  ) : null}
+                </View>
+                <Text style={{ color: colors.textMuted, fontSize: 13 }}>
+                  {formatShoppingQuantity(item, t('pdf.toTaste'))}
+                </Text>
+              </Pressable>
+            );
+          })}
+        </ScrollView>
+      )}
+    </Screen>
+  );
+}
+
+const styles = StyleSheet.create({
+  header: { flexDirection: 'row', alignItems: 'center', gap: 8, marginBottom: 8 },
+  navBtn: { borderWidth: 1, borderRadius: 8, width: 36, height: 36, alignItems: 'center', justifyContent: 'center' },
+  list: { gap: 8, paddingBottom: 24 },
+  row: { flexDirection: 'row', alignItems: 'center', gap: 10, borderWidth: 1, borderRadius: 12, padding: 12 },
+  checkbox: { width: 22, height: 22, borderRadius: 6, borderWidth: 2, alignItems: 'center', justifyContent: 'center' },
+});

meal-plan-frontend-mobile/app/(main)/_layout.tsx

@@ -0,0 +1,38 @@
+import { Redirect, Stack } from 'expo-router';
+import { useTranslation } from 'react-i18next';
+import { useAuth } from '@/src/context/AuthContext';
+import { useAppearance } from '@/src/context/AppearanceContext';
+import { Screen } from '@/src/components/Screen';
+
+export default function MainLayout() {
+  const { isAuthenticated, isLoading } = useAuth();
+  const { colors } = useAppearance();
+  const { t } = useTranslation();
+
+  if (isLoading) {
+    return <Screen loading />;
+  }
+
+  if (!isAuthenticated) {
+    return <Redirect href="/(auth)/login" />;
+  }
+
+  return (
+    <Stack
+      screenOptions={{
+        headerStyle: { backgroundColor: colors.surface },
+        headerTintColor: colors.brand,
+        headerTitleStyle: { color: colors.text },
+        contentStyle: { backgroundColor: colors.background },
+      }}
+    >
+      <Stack.Screen name="(tabs)" options={{ headerShown: false }} />
+      <Stack.Screen name="recipe/[id]" options={{ title: t('recipes.allMealsTitle') }} />
+      <Stack.Screen name="recipe/edit/[id]" options={{ title: t('manage.editRecipe') }} />
+      <Stack.Screen name="ingredients" options={{ title: t('nav.ingredientCatalog') }} />
+      <Stack.Screen name="diet-generator" options={{ title: t('nav.dietGenerator') }} />
+      <Stack.Screen name="recipe-generator" options={{ title: t('nav.recipeGenerator') }} />
+      <Stack.Screen name="category/[category]" />
+    </Stack>
+  );
+}

meal-plan-frontend-mobile/app/(main)/category/[category].tsx

@@ -0,0 +1,152 @@
+import { Stack, useLocalSearchParams, router } from 'expo-router';
+import { useMemo, useState } from 'react';
+import { ActivityIndicator, FlatList, Pressable, ScrollView, StyleSheet, Text, View } from 'react-native';
+import { useQuery } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+import { fetchRecipes } from '@/src/api/recipes.api';
+import { EmptyState, RecipeCard } from '@/src/components/RecipeCard';
+import { ErrorView } from '@/src/components/ErrorView';
+import { Screen } from '@/src/components/Screen';
+import { useAppearance } from '@/src/context/AppearanceContext';
+import { categoryLabel, parseCategoryParam } from '@/src/utils/recipe';
+import { nextSort, sortBy, sortIndicator, type SortDirection } from '@/src/utils/sort';
+
+type RecipeSortColumn = 'name' | 'calories' | 'prepTime';
+
+const RECIPE_SORT_COLUMNS: { id: RecipeSortColumn; labelKey: string }[] = [
+  { id: 'name', labelKey: 'manage.recipeName' },
+  { id: 'calories', labelKey: 'recipes.calories' },
+  { id: 'prepTime', labelKey: 'manage.prepTimeMin' },
+];
+
+export default function CategoryScreen() {
+  const { category: categoryParam } = useLocalSearchParams<{ category: string }>();
+  const category = parseCategoryParam(categoryParam ?? '');
+  const { t } = useTranslation();
+  const { colors } = useAppearance();
+  const [recipeSort, setRecipeSort] = useState<{ column: RecipeSortColumn; direction: SortDirection }>({
+    column: 'name',
+    direction: 'asc',
+  });
+
+  const recipesQuery = useQuery({
+    queryKey: ['recipes', 'category', category],
+    queryFn: () => fetchRecipes({ category: category! }),
+    enabled: category != null,
+  });
+
+  const title = category != null ? categoryLabel(category, t) : t('categories.unknown');
+
+  const sortedRecipes = useMemo(() => {
+    const list = recipesQuery.data ?? [];
+    const { column, direction } = recipeSort;
+    return sortBy(list, direction, (recipe) => {
+      switch (column) {
+        case 'name':
+          return recipe.name;
+        case 'calories':
+          return recipe.calories;
+        case 'prepTime':
+          return recipe.prepTimeMinutes;
+      }
+    });
+  }, [recipesQuery.data, recipeSort]);
+
+  if (category == null) {
+    return (
+      <Screen>
+        <ErrorView message={t('errors.loadRecipesFailed')} />
+      </Screen>
+    );
+  }
+
+  return (
+    <>
+      <Stack.Screen options={{ title, headerShown: true }} />
+      <Screen subtitle={t('common.recipeCount', { count: recipesQuery.data?.length ?? 0 })}>
+        {(recipesQuery.data?.length ?? 0) > 0 ? (
+          <ScrollView horizontal showsHorizontalScrollIndicator={false} contentContainerStyle={styles.sortRow}>
+            {RECIPE_SORT_COLUMNS.map(({ id, labelKey }) => (
+              <SortChip
+                key={id}
+                label={`${t(labelKey)}${sortIndicator(recipeSort, id)}`}
+                active={recipeSort.column === id}
+                onPress={() => setRecipeSort((current) => nextSort(current, id))}
+              />
+            ))}
+          </ScrollView>
+        ) : null}
+        {recipesQuery.isLoading ? (
+          <View style={styles.loading}>
+            <ActivityIndicator size="large" color={colors.brand} />
+          </View>
+        ) : recipesQuery.isError ? (
+          <ErrorView
+            message={t('errors.loadRecipesFailed')}
+            onRetry={() => recipesQuery.refetch()}
+          />
+        ) : (
+          <FlatList
+            data={sortedRecipes}
+            keyExtractor={(item) => String(item.id)}
+            contentContainerStyle={styles.list}
+            ListEmptyComponent={
+              <EmptyState
+                title={t('recipes.emptyCategoryTitle', { category: title })}
+                description={t('recipes.emptyCategoryDescription')}
+              />
+            }
+            renderItem={({ item }) => (
+              <RecipeCard
+                recipe={item}
+                onPress={() => router.push(`/(main)/recipe/${item.id}`)}
+              />
+            )}
+          />
+        )}
+      </Screen>
+    </>
+  );
+}
+
+function SortChip({ label, active, onPress }: { label: string; active: boolean; onPress: () => void }) {
+  const { colors } = useAppearance();
+  return (
+    <Pressable
+      onPress={onPress}
+      style={[
+        styles.sortChip,
+        {
+          backgroundColor: active ? colors.brand : colors.surface,
+          borderColor: active ? colors.brand : colors.border,
+        },
+      ]}
+    >
+      <Text style={{ color: active ? '#fff' : colors.text, fontWeight: '600', fontSize: 12 }}>{label}</Text>
+    </Pressable>
+  );
+}
+
+const styles = StyleSheet.create({
+  sortRow: {
+    gap: 8,
+    paddingBottom: 8,
+  },
+  sortChip: {
+    borderWidth: 1,
+    borderRadius: 999,
+    paddingHorizontal: 12,
+    paddingVertical: 6,
+  },
+  list: {
+    gap: 10,
+    paddingBottom: 24,
+    flexGrow: 1,
+  },
+  loading: {
+    flex: 1,
+    alignItems: 'center',
+    justifyContent: 'center',
+    paddingVertical: 40,
+  },
+});

meal-plan-frontend-mobile/app/(main)/diet-generator.tsx

@@ -0,0 +1,479 @@
+import { useEffect, useMemo, useState } from 'react';
+import { Modal, Pressable, ScrollView, StyleSheet, Text, View } from 'react-native';
+import { router } from 'expo-router';
+import { useTranslation } from 'react-i18next';
+import {
+  acceptDietMacros,
+  commitDietPlan,
+  createDietSession,
+  fetchDietProfile,
+  generateDietPlan,
+  proposeDietMacros,
+  regenerateDietMeal,
+  saveDietProfile,
+  toggleDietMealLock,
+} from '@/src/api/diet-generator.api';
+import { Button } from '@/src/components/Button';
+import { Input } from '@/src/components/Input';
+import { Screen } from '@/src/components/Screen';
+import { useAppearance } from '@/src/context/AppearanceContext';
+import {
+  DEFAULT_DIET_PROFILE,
+  type DietGeneratorDraftMeal,
+  type DietGeneratorSession,
+  type DietUserProfile,
+} from '@/src/types/generator';
+import { MealCategory } from '@/src/types/recipe';
+import { ApiError, extractApiError } from '@/src/utils/apiError';
+import { categoryLabel } from '@/src/utils/recipe';
+
+type Step = 'profile' | 'macros' | 'plan' | 'done';
+
+function formatDraftMealMacros(meal: DietGeneratorDraftMeal): string {
+  const parts = [`${meal.calories ?? '?'} kcal`];
+  if (meal.proteinG != null) parts.push(`P ${meal.proteinG}g`);
+  if (meal.fatG != null) parts.push(`F ${meal.fatG}g`);
+  if (meal.carbsG != null) parts.push(`C ${meal.carbsG}g`);
+  return parts.join(' · ');
+}
+
+export default function DietGeneratorScreen() {
+  const { t } = useTranslation();
+  const { colors } = useAppearance();
+  const [step, setStep] = useState<Step>('profile');
+  const [profile, setProfile] = useState<DietUserProfile>({ ...DEFAULT_DIET_PROFILE });
+  const [sessionId, setSessionId] = useState<number | null>(null);
+  const [session, setSession] = useState<DietGeneratorSession | null>(null);
+  const [macros, setMacros] = useState({
+    calories: 2000,
+    proteinG: 150,
+    fatG: 65,
+    carbsG: 200,
+    rationale: '',
+  });
+  const [commitResult, setCommitResult] = useState<string | null>(null);
+  const [error, setError] = useState<string | null>(null);
+  const [info, setInfo] = useState<string | null>(null);
+  const [loading, setLoading] = useState(false);
+  const [previewMeal, setPreviewMeal] = useState<DietGeneratorDraftMeal | null>(null);
+
+  useEffect(() => {
+    void fetchDietProfile().then((p) => {
+      if (p) setProfile({ ...DEFAULT_DIET_PROFILE, ...p });
+    });
+  }, []);
+
+  const mealsByDate = useMemo(() => {
+    const map = new Map<string, DietGeneratorSession['draftMeals']>();
+    for (const meal of session?.draftMeals ?? []) {
+      const list = map.get(meal.planDate) ?? [];
+      list.push(meal);
+      map.set(meal.planDate, list);
+    }
+    return [...map.entries()]
+      .sort(([a], [b]) => a.localeCompare(b))
+      .map(([date, meals]) => ({
+        date,
+        meals,
+        summary: session?.daySummaries.find((d) => d.planDate === date),
+      }));
+  }, [session]);
+
+  async function startSession() {
+    setError(null);
+    setLoading(true);
+    try {
+      await saveDietProfile(profile);
+      const created = await createDietSession({ planDayCount: 7, calorieToleranceKcal: 10 });
+      setSessionId(created.id);
+      if (created.proposedMacros) applyMacros(created);
+      const refined = await proposeDietMacros(created.id);
+      if (refined.proposedMacros) applyMacros(refined);
+      setStep('macros');
+    } catch (e) {
+      setError(extractApiError(e, t('generators.diet.error')));
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  async function acceptAndGenerate() {
+    if (!sessionId) return;
+    setError(null);
+    setLoading(true);
+    try {
+      await acceptDietMacros(sessionId, macros);
+      const plan = await generateDietPlan(sessionId);
+      setSession(plan);
+      setStep('plan');
+    } catch (e) {
+      setError(extractApiError(e, t('generators.diet.error')));
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  async function toggleLock(mealId: number, isLocked: boolean) {
+    if (!sessionId) return;
+    try {
+      const updated = await toggleDietMealLock(sessionId, mealId, isLocked);
+      setSession(updated);
+    } catch (e) {
+      setError(extractApiError(e, t('generators.diet.error')));
+    }
+  }
+
+  async function regenMeal(planDate: string, mealCategory: number) {
+    if (!sessionId) return;
+    try {
+      const updated = await regenerateDietMeal(sessionId, planDate, mealCategory);
+      setSession(updated);
+      setError(null);
+      setInfo(null);
+    } catch (e) {
+      if (e instanceof ApiError && e.status === 400) {
+        setInfo(t('generators.diet.noAlternativeMeals'));
+        setError(null);
+      } else {
+        setError(extractApiError(e, t('generators.diet.error')));
+        setInfo(null);
+      }
+    }
+  }
+
+  async function commitPlan() {
+    if (!sessionId) return;
+    setLoading(true);
+    try {
+      const result = await commitDietPlan(sessionId);
+      setCommitResult(`${result.planStartDate} → ${result.planEndDate}`);
+      setStep('done');
+    } catch (e) {
+      setError(extractApiError(e, t('generators.diet.error')));
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  function applyMacros(s: DietGeneratorSession) {
+    if (!s.proposedMacros) return;
+    setMacros({
+      calories: s.proposedMacros.calories,
+      proteinG: s.proposedMacros.proteinG,
+      fatG: s.proposedMacros.fatG,
+      carbsG: s.proposedMacros.carbsG,
+      rationale: s.proposedMacros.rationale ?? '',
+    });
+  }
+
+  function reset() {
+    setStep('profile');
+    setSessionId(null);
+    setSession(null);
+    setCommitResult(null);
+    setError(null);
+    setInfo(null);
+  }
+
+  return (
+    <Screen title={t('generators.diet.title')} subtitle={t('generators.diet.subtitle')}>
+      <ScrollView contentContainerStyle={styles.scroll}>
+        {info ? (
+          <View style={[styles.infoBox, { backgroundColor: colors.brand + '22' }]}>
+            <Text style={{ color: colors.brand }}>{info}</Text>
+          </View>
+        ) : null}
+
+        {error ? (
+          <View style={[styles.errorBox, { backgroundColor: colors.danger + '22' }]}>
+            <Text style={{ color: colors.danger }}>{error}</Text>
+          </View>
+        ) : null}
+
+        {step === 'profile' ? (
+          <View style={[styles.card, { backgroundColor: colors.surface, borderColor: colors.border }]}>
+            <Text style={[styles.sectionTitle, { color: colors.text }]}>
+              {t('generators.diet.profileTitle')}
+            </Text>
+            <Input
+              label={t('generators.diet.heightCm')}
+              keyboardType="numeric"
+              value={String(profile.heightCm)}
+              onChangeText={(v) => setProfile({ ...profile, heightCm: Number(v) || 0 })}
+            />
+            <Input
+              label={t('generators.diet.weightKg')}
+              keyboardType="numeric"
+              value={String(profile.weightKg)}
+              onChangeText={(v) => setProfile({ ...profile, weightKg: Number(v) || 0 })}
+            />
+            <Input
+              label={t('generators.diet.age')}
+              keyboardType="numeric"
+              value={String(profile.age)}
+              onChangeText={(v) => setProfile({ ...profile, age: Number(v) || 0 })}
+            />
+            <Text style={[styles.label, { color: colors.text }]}>{t('generators.diet.sex')}</Text>
+            <View style={styles.row}>
+              {(['male', 'female'] as const).map((sex) => (
+                <Pressable
+                  key={sex}
+                  onPress={() => setProfile({ ...profile, sex })}
+                  style={[
+                    styles.chip,
+                    {
+                      backgroundColor: profile.sex === sex ? colors.brand : colors.surface,
+                      borderColor: profile.sex === sex ? colors.brand : colors.border,
+                    },
+                  ]}
+                >
+                  <Text style={{ color: profile.sex === sex ? '#fff' : colors.text }}>
+                    {t(`generators.diet.${sex === 'male' ? 'male' : 'female'}`)}
+                  </Text>
+                </Pressable>
+              ))}
+            </View>
+            <Text style={[styles.label, { color: colors.text }]}>{t('generators.diet.activity')}</Text>
+            <View style={styles.wrapRow}>
+              {(['sedentary', 'light', 'moderate', 'active', 'very_active'] as const).map((level) => (
+                <Pressable
+                  key={level}
+                  onPress={() => setProfile({ ...profile, activityLevel: level })}
+                  style={[
+                    styles.chip,
+                    {
+                      backgroundColor: profile.activityLevel === level ? colors.brand : colors.surface,
+                      borderColor: profile.activityLevel === level ? colors.brand : colors.border,
+                    },
+                  ]}
+                >
+                  <Text style={{ color: profile.activityLevel === level ? '#fff' : colors.text, fontSize: 12 }}>
+                    {t(`generators.diet.${level === 'very_active' ? 'veryActive' : level}`)}
+                  </Text>
+                </Pressable>
+              ))}
+            </View>
+            <Text style={[styles.label, { color: colors.text }]}>{t('generators.diet.goal')}</Text>
+            <View style={styles.wrapRow}>
+              {(['lose_weight', 'maintain', 'gain_muscle', 'recomp'] as const).map((goal) => (
+                <Pressable
+                  key={goal}
+                  onPress={() => setProfile({ ...profile, goal })}
+                  style={[
+                    styles.chip,
+                    {
+                      backgroundColor: profile.goal === goal ? colors.brand : colors.surface,
+                      borderColor: profile.goal === goal ? colors.brand : colors.border,
+                    },
+                  ]}
+                >
+                  <Text style={{ color: profile.goal === goal ? '#fff' : colors.text, fontSize: 12 }}>
+                    {t(
+                      `generators.diet.${
+                        goal === 'lose_weight'
+                          ? 'loseWeight'
+                          : goal === 'gain_muscle'
+                            ? 'gainMuscle'
+                            : goal
+                      }`,
+                    )}
+                  </Text>
+                </Pressable>
+              ))}
+            </View>
+            <Input
+              label={t('generators.diet.allergies')}
+              multiline
+              value={profile.allergiesNotes ?? ''}
+              onChangeText={(v) => setProfile({ ...profile, allergiesNotes: v })}
+            />
+            <Button title={t('generators.diet.continue')} loading={loading} onPress={() => void startSession()} />
+          </View>
+        ) : null}
+
+        {step === 'macros' ? (
+          <View style={[styles.card, { backgroundColor: colors.surface, borderColor: colors.border }]}>
+            <Text style={[styles.sectionTitle, { color: colors.text }]}>
+              {t('generators.diet.macrosTitle')}
+            </Text>
+            {macros.rationale ? (
+              <Text style={{ color: colors.textMuted, marginBottom: 8 }}>{macros.rationale}</Text>
+            ) : null}
+            <Input
+              label={t('manage.caloriesKcal')}
+              keyboardType="numeric"
+              value={String(macros.calories)}
+              onChangeText={(v) => setMacros({ ...macros, calories: Number(v) || 0 })}
+            />
+            <Input
+              label={t('manage.proteinG')}
+              keyboardType="numeric"
+              value={String(macros.proteinG)}
+              onChangeText={(v) => setMacros({ ...macros, proteinG: Number(v) || 0 })}
+            />
+            <Input
+              label={t('manage.fatG')}
+              keyboardType="numeric"
+              value={String(macros.fatG)}
+              onChangeText={(v) => setMacros({ ...macros, fatG: Number(v) || 0 })}
+            />
+            <Input
+              label={t('manage.carbsG')}
+              keyboardType="numeric"
+              value={String(macros.carbsG)}
+              onChangeText={(v) => setMacros({ ...macros, carbsG: Number(v) || 0 })}
+            />
+            <View style={styles.buttonRow}>
+              <Button title={t('common.back')} variant="secondary" onPress={() => setStep('profile')} />
+              <Button
+                title={t('generators.diet.acceptAndGenerate')}
+                loading={loading}
+                onPress={() => void acceptAndGenerate()}
+              />
+            </View>
+          </View>
+        ) : null}
+
+        {step === 'plan' && session ? (
+          <View style={styles.gap}>
+            <Text style={{ color: colors.textMuted }}>{t('generators.diet.planHint')}</Text>
+            {mealsByDate.map(({ date, meals, summary }) => (
+              <View
+                key={date}
+                style={[styles.card, { backgroundColor: colors.surface, borderColor: colors.border }]}
+              >
+                <View style={styles.dayHeader}>
+                  <Text style={[styles.sectionTitle, { color: colors.text }]}>{date}</Text>
+                  <Text style={{ color: summary?.withinTolerance ? colors.brand : '#b45309' }}>
+                    {summary?.totalCalories ?? 0} / {summary?.targetCalories ?? 0} kcal
+                    {summary?.withinTolerance ? ' ✓' : ''}
+                  </Text>
+                </View>
+                {meals.map((meal) => (
+                  <View key={meal.id} style={[styles.mealRow, { borderColor: colors.border }]}>
+                    <View style={{ flex: 1 }}>
+                      <Text style={{ color: colors.textMuted, fontSize: 11, textTransform: 'uppercase' }}>
+                        {categoryLabel(meal.mealCategory as MealCategory, t)}
+                      </Text>
+                      <Text style={{ color: colors.text, fontWeight: '600' }}>{meal.recipeName}</Text>
+                      <Text style={{ color: colors.textMuted, fontSize: 12 }}>
+                        {formatDraftMealMacros(meal)}
+                      </Text>
+                    </View>
+                    <View style={styles.mealActions}>
+                      <Button
+                        title={t('generators.diet.viewRecipe')}
+                        variant="secondary"
+                        onPress={() => setPreviewMeal(meal)}
+                        style={styles.smallBtn}
+                      />
+                      <Button
+                        title={meal.isLocked ? t('generators.diet.unlock') : t('generators.diet.lock')}
+                        variant="secondary"
+                        onPress={() => void toggleLock(meal.id, !meal.isLocked)}
+                        style={styles.smallBtn}
+                      />
+                      <Button
+                        title="↻"
+                        variant="secondary"
+                        disabled={meal.isLocked}
+                        onPress={() => void regenMeal(meal.planDate, meal.mealCategory)}
+                        style={styles.smallBtn}
+                      />
+                    </View>
+                  </View>
+                ))}
+              </View>
+            ))}
+            <Button title={t('generators.diet.commit')} loading={loading} onPress={() => void commitPlan()} />
+          </View>
+        ) : null}
+
+        {step === 'done' ? (
+          <View style={[styles.card, { backgroundColor: colors.surface, borderColor: colors.border }]}>
+            <Text style={[styles.sectionTitle, { color: colors.brand }]}>{t('generators.diet.done')}</Text>
+            {commitResult ? <Text style={{ color: colors.textMuted }}>{commitResult}</Text> : null}
+            <Button title={t('nav.planner')} onPress={() => router.push('/(main)/(tabs)/planner')} />
+            <Button title={t('generators.diet.newPlan')} variant="secondary" onPress={reset} />
+          </View>
+        ) : null}
+      </ScrollView>
+
+      <Modal visible={!!previewMeal} transparent animationType="slide" onRequestClose={() => setPreviewMeal(null)}>
+        <View style={styles.modalBackdrop}>
+          <View style={[styles.modalCard, { backgroundColor: colors.surface, borderColor: colors.border }]}>
+            <ScrollView contentContainerStyle={styles.modalScroll}>
+              {previewMeal ? (
+                <>
+                  <Text style={[styles.sectionTitle, { color: colors.text }]}>{previewMeal.recipeName}</Text>
+                  {previewMeal.calories != null ? (
+                    <Text style={{ color: colors.textMuted, marginBottom: 8 }}>
+                      {previewMeal.calories} kcal · P {previewMeal.proteinG ?? 0}g · F {previewMeal.fatG ?? 0}g · C{' '}
+                      {previewMeal.carbsG ?? 0}g
+                    </Text>
+                  ) : null}
+                  <Text style={[styles.label, { color: colors.text }]}>{t('recipes.ingredients')}</Text>
+                  {previewMeal.ingredients.map((ing) => (
+                    <Text key={ing.id} style={{ color: colors.text, marginBottom: 4 }}>
+                      • {ing.name}
+                      {ing.amountGrams != null ? ` — ${ing.amountGrams}g` : ''}
+                      {ing.unit ? ` ${ing.unit}` : ''}
+                    </Text>
+                  ))}
+                  <Text style={[styles.label, { color: colors.text, marginTop: 12 }]}>
+                    {t('recipes.preparation')}
+                  </Text>
+                  {previewMeal.steps.map((step) => (
+                    <Text key={step.id} style={{ color: colors.text, marginBottom: 4 }}>
+                      {step.stepNumber}. {step.description}
+                    </Text>
+                  ))}
+                </>
+              ) : null}
+            </ScrollView>
+            <Button title={t('common.back')} variant="secondary" onPress={() => setPreviewMeal(null)} />
+          </View>
+        </View>
+      </Modal>
+    </Screen>
+  );
+}
+
+const styles = StyleSheet.create({
+  scroll: { gap: 16, paddingBottom: 32 },
+  card: { borderWidth: 1, borderRadius: 16, padding: 16, gap: 12 },
+  sectionTitle: { fontSize: 18, fontWeight: '700' },
+  label: { fontSize: 14, fontWeight: '600' },
+  row: { flexDirection: 'row', gap: 8 },
+  wrapRow: { flexDirection: 'row', flexWrap: 'wrap', gap: 8 },
+  chip: { borderWidth: 1, borderRadius: 999, paddingHorizontal: 12, paddingVertical: 8 },
+  buttonRow: { gap: 10 },
+  gap: { gap: 12 },
+  dayHeader: { flexDirection: 'row', justifyContent: 'space-between', alignItems: 'center', gap: 8 },
+  mealRow: {
+    borderTopWidth: 1,
+    paddingTop: 10,
+    marginTop: 10,
+    flexDirection: 'row',
+    alignItems: 'center',
+    gap: 8,
+  },
+  mealActions: { gap: 6 },
+  smallBtn: { minHeight: 36, paddingHorizontal: 10 },
+  errorBox: { borderRadius: 12, padding: 12 },
+  infoBox: { borderRadius: 12, padding: 12 },
+  modalBackdrop: {
+    flex: 1,
+    backgroundColor: 'rgba(0,0,0,0.5)',
+    justifyContent: 'flex-end',
+    padding: 16,
+  },
+  modalCard: {
+    borderWidth: 1,
+    borderRadius: 16,
+    padding: 16,
+    maxHeight: '85%',
+    gap: 12,
+  },
+  modalScroll: { gap: 4, paddingBottom: 8 },
+});

meal-plan-frontend-mobile/app/(main)/ingredients.tsx

@@ -0,0 +1,434 @@
+import { useEffect, useMemo, useState } from 'react';
+import { Alert, Pressable, ScrollView, StyleSheet, Text, View } from 'react-native';
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+import {
+  createIngredientCatalogItem,
+  deleteIngredientCatalogItem,
+  fetchIngredientCatalogItems,
+  fetchIngredientCategories,
+  updateIngredientCatalogItem,
+} from '@/src/api/ingredient-catalog.api';
+import { Button } from '@/src/components/Button';
+import { ErrorView } from '@/src/components/ErrorView';
+import { Input } from '@/src/components/Input';
+import { Screen } from '@/src/components/Screen';
+import { useAppearance } from '@/src/context/AppearanceContext';
+import type {
+  IngredientCategory,
+  IngredientNutritionItem,
+  UpsertIngredientNutritionItemInput,
+} from '@/src/types/ingredient-catalog';
+import { extractApiError } from '@/src/utils/apiError';
+import { ingredientDisplayName } from '@/src/utils/ingredient-catalog.util';
+import { nextSort, sortBy, sortIndicator, type SortDirection } from '@/src/utils/sort';
+
+type IngredientSortColumn = 'name' | 'category' | 'calories' | 'protein' | 'fat' | 'carbs' | 'fiber';
+
+const EMPTY_FORM: UpsertIngredientNutritionItemInput = {
+  categoryId: 0,
+  name: '',
+  namePl: '',
+  caloriesPer100G: 0,
+  proteinGPer100G: 0,
+  fatGPer100G: 0,
+  carbsGPer100G: 0,
+  fiberGPer100G: null,
+  sortOrder: 0,
+  isActive: true,
+};
+
+export default function IngredientsScreen() {
+  const { t, i18n } = useTranslation();
+  const { colors } = useAppearance();
+  const queryClient = useQueryClient();
+  const [category, setCategory] = useState('');
+  const [search, setSearch] = useState('');
+  const [debouncedSearch, setDebouncedSearch] = useState('');
+  const [showForm, setShowForm] = useState(false);
+  const [editingId, setEditingId] = useState<number | null>(null);
+  const [form, setForm] = useState<UpsertIngredientNutritionItemInput>({ ...EMPTY_FORM });
+  const [formError, setFormError] = useState<string | null>(null);
+  const [sort, setSort] = useState<{ column: IngredientSortColumn; direction: SortDirection }>({
+    column: 'name',
+    direction: 'asc',
+  });
+
+  useEffect(() => {
+    const timer = setTimeout(() => setDebouncedSearch(search.trim()), 300);
+    return () => clearTimeout(timer);
+  }, [search]);
+
+  const categoriesQuery = useQuery({
+    queryKey: ['ingredient-categories'],
+    queryFn: fetchIngredientCategories,
+  });
+
+  const itemsQuery = useQuery({
+    queryKey: ['ingredient-catalog', category, debouncedSearch],
+    queryFn: () =>
+      fetchIngredientCatalogItems({
+        category: category || undefined,
+        search: debouncedSearch || undefined,
+      }),
+  });
+
+  const saveMutation = useMutation({
+    mutationFn: async () => {
+      const payload = {
+        ...form,
+        name: form.name.trim(),
+        namePl: form.namePl?.trim() || null,
+        fiberGPer100G: form.fiberGPer100G ?? null,
+      };
+      if (editingId) return updateIngredientCatalogItem(editingId, payload);
+      return createIngredientCatalogItem(payload);
+    },
+    onSuccess: () => {
+      setShowForm(false);
+      setEditingId(null);
+      setFormError(null);
+      void queryClient.invalidateQueries({ queryKey: ['ingredient-categories'] });
+      void queryClient.invalidateQueries({ queryKey: ['ingredient-catalog'] });
+    },
+    onError: (err) => {
+      setFormError(extractApiError(err, t('errors.saveIngredientFailed')));
+    },
+  });
+
+  const deleteMutation = useMutation({
+    mutationFn: deleteIngredientCatalogItem,
+    onSuccess: () => {
+      void queryClient.invalidateQueries({ queryKey: ['ingredient-categories'] });
+      void queryClient.invalidateQueries({ queryKey: ['ingredient-catalog'] });
+    },
+  });
+
+  const categoryLabel = (code: string, fallback: string) =>
+    t(`ingredientCatalog.categories.${code}`, { defaultValue: fallback });
+
+  const totalCount = useMemo(
+    () => (categoriesQuery.data ?? []).reduce((sum, c) => sum + c.itemCount, 0),
+    [categoriesQuery.data],
+  );
+
+  const openCreateForm = () => {
+    setEditingId(null);
+    setForm({ ...EMPTY_FORM, categoryId: categoriesQuery.data?.[0]?.id ?? 0 });
+    setFormError(null);
+    setShowForm(true);
+  };
+
+  const openEditForm = (item: IngredientNutritionItem) => {
+    setEditingId(item.id);
+    setForm({
+      categoryId: item.categoryId,
+      name: item.name,
+      namePl: item.namePl ?? '',
+      caloriesPer100G: item.caloriesPer100G,
+      proteinGPer100G: item.proteinGPer100G,
+      fatGPer100G: item.fatGPer100G,
+      carbsGPer100G: item.carbsGPer100G,
+      fiberGPer100G: item.fiberGPer100G,
+      sortOrder: 0,
+      isActive: true,
+    });
+    setFormError(null);
+    setShowForm(true);
+  };
+
+  const saveForm = () => {
+    if (!form.categoryId || !form.name.trim()) {
+      setFormError(t('ingredientCatalog.formInvalid'));
+      return;
+    }
+    saveMutation.mutate();
+  };
+
+  const deleteItem = (id: number) => {
+    Alert.alert(t('common.delete'), t('ingredientCatalog.deleteConfirm'), [
+      { text: t('common.cancel'), style: 'cancel' },
+      { text: t('common.delete'), style: 'destructive', onPress: () => deleteMutation.mutate(id) },
+    ]);
+  };
+
+  const loading = categoriesQuery.isLoading || itemsQuery.isLoading;
+  const error = categoriesQuery.error ?? itemsQuery.error;
+  const items = itemsQuery.data ?? [];
+
+  const sortedItems = useMemo(() => {
+    const { column, direction } = sort;
+    return sortBy(items, direction, (item) => {
+      switch (column) {
+        case 'name':
+          return ingredientDisplayName(item, i18n.language);
+        case 'category':
+          return item.categoryCode;
+        case 'calories':
+          return item.caloriesPer100G;
+        case 'protein':
+          return Number(item.proteinGPer100G);
+        case 'fat':
+          return Number(item.fatGPer100G);
+        case 'carbs':
+          return Number(item.carbsGPer100G);
+        case 'fiber':
+          return item.fiberGPer100G != null ? Number(item.fiberGPer100G) : null;
+      }
+    });
+  }, [items, sort, i18n.language]);
+
+  const toggleSort = (column: IngredientSortColumn) => {
+    setSort((current) => nextSort(current, column));
+  };
+
+  return (
+    <Screen
+      title={t('ingredientCatalog.title')}
+      subtitle={t('ingredientCatalog.subtitle')}
+      loading={loading}
+    >
+      <Button title={`+ ${t('ingredientCatalog.addIngredient')}`} variant="secondary" onPress={openCreateForm} />
+
+      {showForm ? (
+        <View style={[styles.formBox, { borderColor: colors.border, backgroundColor: colors.surface }]}>
+          <Text style={[styles.formTitle, { color: colors.text }]}>
+            {editingId ? t('ingredientCatalog.editIngredient') : t('ingredientCatalog.addIngredient')}
+          </Text>
+          {formError ? <Text style={{ color: '#dc2626', marginBottom: 8 }}>{formError}</Text> : null}
+          <Text style={[styles.label, { color: colors.text }]}>{t('ingredientCatalog.columns.category')}</Text>
+          <ScrollView horizontal showsHorizontalScrollIndicator={false} contentContainerStyle={styles.chips}>
+            {(categoriesQuery.data ?? []).map((cat: IngredientCategory) => (
+              <Chip
+                key={cat.id}
+                label={categoryLabel(cat.code, cat.name)}
+                active={form.categoryId === cat.id}
+                onPress={() => setForm((prev) => ({ ...prev, categoryId: cat.id }))}
+              />
+            ))}
+          </ScrollView>
+          <Input
+            label={t('ingredientCatalog.nameEn')}
+            value={form.name}
+            onChangeText={(v) => setForm((prev) => ({ ...prev, name: v }))}
+          />
+          <Input
+            label={t('ingredientCatalog.namePlLabel')}
+            value={form.namePl ?? ''}
+            onChangeText={(v) => setForm((prev) => ({ ...prev, namePl: v }))}
+          />
+          {(
+            [
+              ['caloriesPer100G', 'ingredientCatalog.columns.calories'],
+              ['proteinGPer100G', 'ingredientCatalog.columns.protein'],
+              ['fatGPer100G', 'ingredientCatalog.columns.fat'],
+              ['carbsGPer100G', 'ingredientCatalog.columns.carbs'],
+              ['fiberGPer100G', 'ingredientCatalog.columns.fiber'],
+            ] as const
+          ).map(([key, labelKey]) => (
+            <Input
+              key={key}
+              label={t(labelKey)}
+              keyboardType="decimal-pad"
+              value={form[key]?.toString() ?? ''}
+              onChangeText={(v) =>
+                setForm((prev) => ({
+                  ...prev,
+                  [key]: v === '' ? null : Number(v),
+                }))
+              }
+            />
+          ))}
+          <View style={styles.formActions}>
+            <Button title={t('common.save')} loading={saveMutation.isPending} onPress={saveForm} />
+            <Button title={t('common.cancel')} variant="secondary" onPress={() => setShowForm(false)} />
+          </View>
+        </View>
+      ) : null}
+
+      <ScrollView horizontal showsHorizontalScrollIndicator={false} contentContainerStyle={styles.chips}>
+        <Chip
+          label={`${t('ingredientCatalog.allCategories')} (${totalCount})`}
+          active={category === ''}
+          onPress={() => setCategory('')}
+        />
+        {(categoriesQuery.data ?? []).map((cat: IngredientCategory) => (
+          <Chip
+            key={cat.code}
+            label={`${categoryLabel(cat.code, cat.name)} (${cat.itemCount})`}
+            active={category === cat.code}
+            onPress={() => setCategory(cat.code)}
+          />
+        ))}
+      </ScrollView>
+
+      <Input
+        label={t('common.search')}
+        value={search}
+        onChangeText={setSearch}
+        placeholder={t('ingredientCatalog.searchPlaceholder')}
+      />
+
+      {(itemsQuery.data ?? []).length > 0 ? (
+        <ScrollView horizontal showsHorizontalScrollIndicator={false} contentContainerStyle={styles.sortRow}>
+          {(
+            [
+              ['name', 'ingredientCatalog.columns.name'],
+              ['category', 'ingredientCatalog.columns.category'],
+              ['calories', 'ingredientCatalog.columns.calories'],
+              ['protein', 'ingredientCatalog.columns.protein'],
+              ['fat', 'ingredientCatalog.columns.fat'],
+              ['carbs', 'ingredientCatalog.columns.carbs'],
+              ['fiber', 'ingredientCatalog.columns.fiber'],
+            ] as const
+          ).map(([column, labelKey]) => (
+            <SortChip
+              key={column}
+              label={`${t(labelKey)}${sortIndicator(sort, column)}`}
+              active={sort.column === column}
+              onPress={() => toggleSort(column)}
+            />
+          ))}
+        </ScrollView>
+      ) : null}
+
+      {error ? (
+        <ErrorView
+          message={extractApiError(error, t('errors.loadIngredientCatalogFailed'))}
+          onRetry={() => {
+            categoriesQuery.refetch();
+            itemsQuery.refetch();
+          }}
+        />
+      ) : (itemsQuery.data ?? []).length === 0 ? (
+        <View style={styles.empty}>
+          <Text style={[styles.emptyTitle, { color: colors.text }]}>{t('ingredientCatalog.noResultsTitle')}</Text>
+          <Text style={{ color: colors.textMuted }}>{t('ingredientCatalog.noResultsDescription')}</Text>
+        </View>
+      ) : (
+        <ScrollView contentContainerStyle={styles.list}>
+          {sortedItems.map((item) => (
+            <View
+              key={item.id}
+              style={[styles.card, { backgroundColor: colors.surface, borderColor: colors.border }]}
+            >
+              <View style={styles.cardHeader}>
+                <View style={{ flex: 1 }}>
+                  <Text style={[styles.cardTitle, { color: colors.text }]}>
+                    {ingredientDisplayName(item, i18n.language)}
+                  </Text>
+                  <Text style={{ color: colors.textMuted, marginBottom: 8 }}>
+                    {categoryLabel(item.categoryCode, item.categoryName)}
+                  </Text>
+                </View>
+                <View style={styles.cardActions}>
+                  <Pressable onPress={() => openEditForm(item)}>
+                    <Text style={{ color: colors.brand, fontWeight: '600' }}>{t('common.edit')}</Text>
+                  </Pressable>
+                  <Pressable onPress={() => deleteItem(item.id)}>
+                    <Text style={{ color: '#dc2626', fontWeight: '600' }}>{t('common.delete')}</Text>
+                  </Pressable>
+                </View>
+              </View>
+              <View style={styles.macros}>
+                <Macro label={t('ingredientCatalog.columns.calories')} value={`${item.caloriesPer100G}`} />
+                <Macro label={t('ingredientCatalog.columns.protein')} value={formatNum(item.proteinGPer100G)} />
+                <Macro label={t('ingredientCatalog.columns.fat')} value={formatNum(item.fatGPer100G)} />
+                <Macro label={t('ingredientCatalog.columns.carbs')} value={formatNum(item.carbsGPer100G)} />
+                {item.fiberGPer100G != null ? (
+                  <Macro label={t('ingredientCatalog.columns.fiber')} value={formatNum(item.fiberGPer100G)} />
+                ) : null}
+              </View>
+            </View>
+          ))}
+          <Text style={[styles.note, { color: colors.textMuted }]}>{t('ingredientCatalog.per100gNote')}</Text>
+        </ScrollView>
+      )}
+    </Screen>
+  );
+}
+
+function SortChip({ label, active, onPress }: { label: string; active: boolean; onPress: () => void }) {
+  const { colors } = useAppearance();
+  return (
+    <Pressable
+      onPress={onPress}
+      style={[
+        styles.sortChip,
+        {
+          backgroundColor: active ? colors.brand : colors.surface,
+          borderColor: active ? colors.brand : colors.border,
+        },
+      ]}
+    >
+      <Text style={{ color: active ? '#fff' : colors.text, fontWeight: '600', fontSize: 12 }}>{label}</Text>
+    </Pressable>
+  );
+}
+
+function Chip({ label, active, onPress }: { label: string; active: boolean; onPress: () => void }) {
+  const { colors } = useAppearance();
+  return (
+    <Pressable
+      onPress={onPress}
+      style={[
+        styles.chip,
+        {
+          backgroundColor: active ? colors.brand : colors.surface,
+          borderColor: active ? colors.brand : colors.border,
+        },
+      ]}
+    >
+      <Text style={{ color: active ? '#fff' : colors.text, fontWeight: '600', fontSize: 13 }}>{label}</Text>
+    </Pressable>
+  );
+}
+
+function Macro({ label, value }: { label: string; value: string }) {
+  const { colors } = useAppearance();
+  return (
+    <View style={styles.macro}>
+      <Text style={{ color: colors.textMuted, fontSize: 11 }}>{label}</Text>
+      <Text style={{ color: colors.text, fontWeight: '600' }}>{value}</Text>
+    </View>
+  );
+}
+
+function formatNum(value: number): string {
+  return Number(value).toFixed(1);
+}
+
+const styles = StyleSheet.create({
+  chips: { gap: 8, paddingBottom: 12 },
+  sortRow: { gap: 8, paddingBottom: 8 },
+  sortChip: {
+    borderWidth: 1,
+    borderRadius: 999,
+    paddingHorizontal: 12,
+    paddingVertical: 6,
+  },
+  chip: {
+    borderWidth: 1,
+    borderRadius: 999,
+    paddingHorizontal: 14,
+    paddingVertical: 8,
+  },
+  formBox: { borderWidth: 1, borderRadius: 16, padding: 16, gap: 8, marginBottom: 8 },
+  formTitle: { fontSize: 17, fontWeight: '700', marginBottom: 4 },
+  formActions: { flexDirection: 'row', gap: 8, marginTop: 4 },
+  label: { fontSize: 14, fontWeight: '600' },
+  list: { gap: 12, paddingBottom: 24 },
+  card: {
+    borderWidth: 1,
+    borderRadius: 16,
+    padding: 16,
+  },
+  cardHeader: { flexDirection: 'row', alignItems: 'flex-start', gap: 8 },
+  cardActions: { gap: 8, alignItems: 'flex-end' },
+  cardTitle: { fontSize: 16, fontWeight: '700', marginBottom: 2 },
+  macros: { flexDirection: 'row', flexWrap: 'wrap', gap: 12 },
+  macro: { minWidth: 72 },
+  note: { fontSize: 12, textAlign: 'center', marginTop: 8 },
+  empty: { paddingVertical: 32, alignItems: 'center', gap: 8 },
+  emptyTitle: { fontSize: 16, fontWeight: '700' },
+});

meal-plan-frontend-mobile/app/(main)/recipe-generator.tsx

@@ -0,0 +1,376 @@
+import { useMemo, useState } from 'react';
+import { Pressable, ScrollView, StyleSheet, Text, View } from 'react-native';
+import { router } from 'expo-router';
+import { useTranslation } from 'react-i18next';
+import {
+  commitRecipes,
+  createRecipeSession,
+  generateRecipeDrafts,
+  regenerateRecipePart,
+  removeRecipeDraft,
+} from '@/src/api/recipe-generator.api';
+import { Button } from '@/src/components/Button';
+import { Input } from '@/src/components/Input';
+import { Screen } from '@/src/components/Screen';
+import { useAppearance } from '@/src/context/AppearanceContext';
+import type { CommitRecipeResult, GeneratedRecipeDraft, RecipeGeneratorConstraints } from '@/src/types/generator';
+import { MealCategory } from '@/src/types/recipe';
+import { extractApiError } from '@/src/utils/apiError';
+import { ALL_CATEGORIES, categoryLabel } from '@/src/utils/recipe';
+
+type Step = 'constraints' | 'review' | 'done';
+
+export default function RecipeGeneratorScreen() {
+  const { t } = useTranslation();
+  const { colors } = useAppearance();
+  const [step, setStep] = useState<Step>('constraints');
+  const [sessionId, setSessionId] = useState<number | null>(null);
+  const [drafts, setDrafts] = useState<GeneratedRecipeDraft[]>([]);
+  const [selectedIds, setSelectedIds] = useState<Set<string>>(new Set());
+  const [savedRecipes, setSavedRecipes] = useState<CommitRecipeResult[]>([]);
+  const [recipeCount, setRecipeCount] = useState('3');
+  const [pending, setPending] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+  const [constraints, setConstraints] = useState<RecipeGeneratorConstraints>({
+    prompt: '',
+    mealCategory: MealCategory.Breakfast,
+    targetCalories: null,
+    calorieToleranceKcal: 10,
+    maxPrepTimeMinutes: 30,
+    cuisineStyle: '',
+    dietStyle: '',
+    exclusions: '',
+  });
+
+  const calorieTolerance = constraints.calorieToleranceKcal ?? 10;
+
+  function isWithinCalorieTarget(calories?: number | null): boolean {
+    if (!constraints.targetCalories || calories == null) return true;
+    return Math.abs(calories - constraints.targetCalories) <= calorieTolerance;
+  }
+
+  const allSelected = useMemo(
+    () => drafts.length > 0 && drafts.every((d) => selectedIds.has(d.draftId)),
+    [drafts, selectedIds],
+  );
+
+  function syncDrafts(next: GeneratedRecipeDraft[]) {
+    setDrafts(next);
+    setSelectedIds(new Set(next.map((d) => d.draftId)));
+  }
+
+  async function runGenerate() {
+    setError(null);
+    setPending(true);
+    const count = Math.min(8, Math.max(1, Number(recipeCount) || 3));
+    try {
+      let session;
+      if (sessionId) {
+        session = await generateRecipeDrafts(sessionId, count);
+      } else {
+        const created = await createRecipeSession(constraints);
+        setSessionId(created.id);
+        session = await generateRecipeDrafts(created.id, count);
+      }
+      syncDrafts(session.drafts ?? []);
+      setStep('review');
+    } catch (e) {
+      setError(extractApiError(e, t('generators.recipe.error')));
+    } finally {
+      setPending(false);
+    }
+  }
+
+  async function regen(draftId: string, mode: 'ingredients' | 'steps' | 'full') {
+    if (!sessionId) return;
+    setPending(true);
+    setError(null);
+    try {
+      const session = await regenerateRecipePart(sessionId, draftId, mode, constraints.prompt);
+      syncDrafts(session.drafts ?? []);
+    } catch (e) {
+      setError(extractApiError(e, t('generators.recipe.error')));
+    } finally {
+      setPending(false);
+    }
+  }
+
+  async function removeDraft(draftId: string) {
+    if (!sessionId) return;
+    setPending(true);
+    setError(null);
+    try {
+      const session = await removeRecipeDraft(sessionId, draftId);
+      const next = session.drafts ?? [];
+      syncDrafts(next);
+      if (next.length === 0) setStep('constraints');
+    } catch (e) {
+      setError(extractApiError(e, t('generators.recipe.error')));
+    } finally {
+      setPending(false);
+    }
+  }
+
+  async function saveSelected() {
+    if (!sessionId || selectedIds.size === 0) return;
+    setPending(true);
+    setError(null);
+    try {
+      const result = await commitRecipes(sessionId, [...selectedIds]);
+      setSavedRecipes(result.saved);
+      const remaining = drafts.filter((d) => !selectedIds.has(d.draftId));
+      if (remaining.length === 0) setStep('done');
+      else syncDrafts(remaining);
+    } catch (e) {
+      setError(extractApiError(e, t('generators.recipe.error')));
+    } finally {
+      setPending(false);
+    }
+  }
+
+  function toggleSelected(draftId: string) {
+    setSelectedIds((prev) => {
+      const next = new Set(prev);
+      if (next.has(draftId)) next.delete(draftId);
+      else next.add(draftId);
+      return next;
+    });
+  }
+
+  function toggleAll() {
+    setSelectedIds(allSelected ? new Set() : new Set(drafts.map((d) => d.draftId)));
+  }
+
+  return (
+    <Screen title={t('generators.recipe.title')} subtitle={t('generators.recipe.subtitle')}>
+      <ScrollView contentContainerStyle={styles.scroll}>
+        {error ? (
+          <View style={[styles.errorBox, { backgroundColor: colors.danger + '22' }]}>
+            <Text style={{ color: colors.danger }}>{error}</Text>
+          </View>
+        ) : null}
+
+        {step === 'constraints' ? (
+          <View style={[styles.card, { backgroundColor: colors.surface, borderColor: colors.border }]}>
+            <Text style={[styles.sectionTitle, { color: colors.text }]}>
+              {t('generators.recipe.constraintsTitle')}
+            </Text>
+            <Input
+              label={t('generators.recipe.prompt')}
+              multiline
+              placeholder={t('generators.recipe.promptPlaceholder')}
+              value={constraints.prompt}
+              onChangeText={(v) => setConstraints({ ...constraints, prompt: v })}
+            />
+            <Input
+              label={t('generators.recipe.targetCalories')}
+              keyboardType="numeric"
+              placeholder={t('generators.recipe.targetCaloriesOptional')}
+              value={constraints.targetCalories != null ? String(constraints.targetCalories) : ''}
+              onChangeText={(v) =>
+                setConstraints({
+                  ...constraints,
+                  targetCalories: v.trim() ? Number(v) || null : null,
+                })
+              }
+            />
+            <Text style={{ color: colors.textMuted, fontSize: 12, marginBottom: 12 }}>
+              {t('generators.recipe.targetCaloriesHint')}
+            </Text>
+            <Input
+              label={t('generators.recipe.recipeCount')}
+              keyboardType="numeric"
+              value={recipeCount}
+              onChangeText={setRecipeCount}
+            />
+            <Text style={[styles.label, { color: colors.text }]}>{t('common.category')}</Text>
+            <View style={styles.wrapRow}>
+              {ALL_CATEGORIES.map((cat) => (
+                <Pressable
+                  key={cat}
+                  onPress={() => setConstraints({ ...constraints, mealCategory: cat })}
+                  style={[
+                    styles.chip,
+                    {
+                      backgroundColor: constraints.mealCategory === cat ? colors.brand : colors.surface,
+                      borderColor: constraints.mealCategory === cat ? colors.brand : colors.border,
+                    },
+                  ]}
+                >
+                  <Text style={{ color: constraints.mealCategory === cat ? '#fff' : colors.text, fontSize: 12 }}>
+                    {categoryLabel(cat, t)}
+                  </Text>
+                </Pressable>
+              ))}
+            </View>
+            <Input
+              label={t('generators.recipe.maxPrep')}
+              keyboardType="numeric"
+              value={String(constraints.maxPrepTimeMinutes ?? '')}
+              onChangeText={(v) =>
+                setConstraints({ ...constraints, maxPrepTimeMinutes: Number(v) || undefined })
+              }
+            />
+            <Input
+              label={t('generators.recipe.exclusions')}
+              value={constraints.exclusions ?? ''}
+              onChangeText={(v) => setConstraints({ ...constraints, exclusions: v })}
+            />
+            <Button
+              title={t('generators.recipe.generate')}
+              loading={pending}
+              disabled={!constraints.prompt.trim()}
+              onPress={() => void runGenerate()}
+            />
+          </View>
+        ) : null}
+
+        {step === 'review' && drafts.length > 0 ? (
+          <View style={styles.gap}>
+            <View style={styles.rowBetween}>
+              <Text style={{ color: colors.textMuted, flex: 1 }}>
+                {t('generators.recipe.reviewHint', { count: drafts.length })}
+              </Text>
+              <Pressable onPress={toggleAll} style={styles.selectAll}>
+                <Text style={{ color: colors.brand, fontWeight: '600' }}>
+                  {t('generators.recipe.selectAll')}
+                </Text>
+              </Pressable>
+            </View>
+
+            {drafts.map((draft) => (
+              <View
+                key={draft.draftId}
+                style={[styles.card, { backgroundColor: colors.surface, borderColor: colors.border }]}
+              >
+                <View style={styles.rowBetween}>
+                  <Pressable onPress={() => toggleSelected(draft.draftId)} style={styles.checkRow}>
+                    <View
+                      style={[
+                        styles.checkbox,
+                        {
+                          borderColor: selectedIds.has(draft.draftId) ? colors.brand : colors.border,
+                          backgroundColor: selectedIds.has(draft.draftId) ? colors.brand : 'transparent',
+                        },
+                      ]}
+                    />
+                    <View style={{ flex: 1 }}>
+                      <Text style={[styles.sectionTitle, { color: colors.text }]}>{draft.name}</Text>
+                      {draft.calories != null ? (
+                        <Text
+                          style={{
+                            color:
+                              constraints.targetCalories && !isWithinCalorieTarget(draft.calories)
+                                ? '#b45309'
+                                : colors.textMuted,
+                            fontSize: 13,
+                          }}
+                        >
+                          {constraints.targetCalories
+                            ? t('generators.recipe.caloriesWithTarget', {
+                                actual: draft.calories,
+                                target: constraints.targetCalories,
+                              })
+                            : `${draft.calories} kcal`}
+                          {' · '}
+                          P {draft.protein ?? 0}g · F {draft.fat ?? 0}g · C {draft.carbs ?? 0}g
+                        </Text>
+                      ) : null}
+                    </View>
+                  </Pressable>
+                </View>
+
+                {draft.unlinkedIngredientCount > 0 ? (
+                  <Text style={{ color: '#b45309' }}>
+                    {t('generators.recipe.unlinkedWarning', { count: draft.unlinkedIngredientCount })}
+                  </Text>
+                ) : null}
+
+                <Text style={[styles.label, { color: colors.text }]}>{t('recipes.ingredients')}</Text>
+                {draft.ingredients.map((ing, i) => (
+                  <Text
+                    key={i}
+                    style={{ color: !ing.isLinked && ing.amountGrams ? '#b45309' : colors.text, fontSize: 14 }}
+                  >
+                    {ing.name} — {ing.amountGrams ?? '?'}g {ing.unit ?? ''}
+                  </Text>
+                ))}
+
+                <Text style={[styles.label, { color: colors.text, marginTop: 8 }]}>
+                  {t('manage.preparationSteps')}
+                </Text>
+                {draft.steps.map((s) => (
+                  <Text key={s.stepNumber} style={{ color: colors.text, fontSize: 14 }}>
+                    {s.stepNumber}. {s.description}
+                  </Text>
+                ))}
+
+                <View style={styles.gap}>
+                  <Button
+                    title={t('generators.recipe.regenIngredients')}
+                    variant="secondary"
+                    loading={pending}
+                    onPress={() => void regen(draft.draftId, 'ingredients')}
+                  />
+                  <Button
+                    title={t('generators.recipe.remove')}
+                    variant="danger"
+                    disabled={pending}
+                    onPress={() => void removeDraft(draft.draftId)}
+                  />
+                </View>
+              </View>
+            ))}
+
+            <Button
+              title={t('generators.recipe.saveSelected', { count: selectedIds.size })}
+              loading={pending}
+              disabled={selectedIds.size === 0}
+              onPress={() => void saveSelected()}
+            />
+            <Button title={t('common.back')} variant="secondary" onPress={() => setStep('constraints')} />
+          </View>
+        ) : null}
+
+        {step === 'done' && savedRecipes.length > 0 ? (
+          <View style={[styles.card, { backgroundColor: colors.surface, borderColor: colors.border }]}>
+            <Text style={[styles.sectionTitle, { color: colors.text }]}>
+              {t('generators.recipe.doneMultiple', { count: savedRecipes.length })}
+            </Text>
+            {savedRecipes.map((r) => (
+              <Pressable key={r.recipeId} onPress={() => router.push(`/(main)/recipe/${r.recipeId}`)}>
+                <Text style={{ color: colors.brand, fontSize: 16, marginBottom: 8 }}>{r.recipeName}</Text>
+              </Pressable>
+            ))}
+            <Button
+              title={t('generators.recipe.generateMore')}
+              variant="secondary"
+              onPress={() => {
+                setStep('constraints');
+                setDrafts([]);
+                setSelectedIds(new Set());
+                setSavedRecipes([]);
+                setSessionId(null);
+              }}
+            />
+          </View>
+        ) : null}
+      </ScrollView>
+    </Screen>
+  );
+}
+
+const styles = StyleSheet.create({
+  scroll: { gap: 16, paddingBottom: 32 },
+  card: { borderWidth: 1, borderRadius: 16, padding: 16, gap: 12 },
+  sectionTitle: { fontSize: 18, fontWeight: '700' },
+  label: { fontSize: 14, fontWeight: '600' },
+  wrapRow: { flexDirection: 'row', flexWrap: 'wrap', gap: 8 },
+  chip: { borderWidth: 1, borderRadius: 999, paddingHorizontal: 12, paddingVertical: 8 },
+  gap: { gap: 10 },
+  rowBetween: { flexDirection: 'row', alignItems: 'center', justifyContent: 'space-between', gap: 8 },
+  checkRow: { flexDirection: 'row', alignItems: 'flex-start', gap: 10, flex: 1 },
+  checkbox: { width: 22, height: 22, borderRadius: 6, borderWidth: 2, marginTop: 2 },
+  selectAll: { paddingVertical: 4, paddingHorizontal: 8 },
+  errorBox: { borderRadius: 12, padding: 12 },
+});

meal-plan-frontend-mobile/app/(main)/recipe/[id].tsx

@@ -0,0 +1,205 @@
+import { Stack, useLocalSearchParams, router } from 'expo-router';
+import { useMemo, useState } from 'react';
+import { Pressable, StyleSheet, Text, View } from 'react-native';
+import { useQuery } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+import { fetchRecipeById } from '@/src/api/recipes.api';
+import { Button } from '@/src/components/Button';
+import { ErrorView } from '@/src/components/ErrorView';
+import { Screen } from '@/src/components/Screen';
+import { useAppearance } from '@/src/context/AppearanceContext';
+import { categoryLabel } from '@/src/utils/recipe';
+import { nextSort, sortBy, sortIndicator, type SortDirection } from '@/src/utils/sort';
+
+type IngredientSortColumn = 'name' | 'amount';
+
+export default function RecipeDetailScreen() {
+  const { id } = useLocalSearchParams<{ id: string }>();
+  const recipeId = Number(id);
+  const { t } = useTranslation();
+  const { colors } = useAppearance();
+  const [ingredientSort, setIngredientSort] = useState<{
+    column: IngredientSortColumn;
+    direction: SortDirection;
+  }>({ column: 'name', direction: 'asc' });
+
+  const recipeQuery = useQuery({
+    queryKey: ['recipe', recipeId],
+    queryFn: () => fetchRecipeById(recipeId),
+    enabled: Number.isFinite(recipeId),
+  });
+
+  const sortedIngredients = useMemo(() => {
+    if (!recipeQuery.data) return [];
+    const { column, direction } = ingredientSort;
+    return sortBy(recipeQuery.data.ingredients, direction, (ing) =>
+      column === 'name' ? ing.name : ing.amountGrams,
+    );
+  }, [recipeQuery.data, ingredientSort]);
+
+  if (!Number.isFinite(recipeId)) {
+    return (
+      <Screen>
+        <ErrorView message={t('errors.loadRecipeFailed')} />
+      </Screen>
+    );
+  }
+
+  if (recipeQuery.isLoading) {
+    return <Screen loading />;
+  }
+
+  if (recipeQuery.isError || !recipeQuery.data) {
+    return (
+      <Screen>
+        <ErrorView
+          message={t('errors.loadRecipeFailed')}
+          onRetry={() => recipeQuery.refetch()}
+        />
+      </Screen>
+    );
+  }
+
+  const recipe = recipeQuery.data;
+
+  return (
+    <>
+      <Stack.Screen options={{ title: recipe.name }} />
+      <Screen>
+        <Button title={t('common.edit')} variant="secondary" onPress={() => router.push(`/(main)/recipe/edit/${recipeId}`)} />
+        <View style={[styles.metaCard, { backgroundColor: colors.surface, borderColor: colors.border }]}>
+          <Text style={[styles.category, { color: colors.brand }]}>
+            {categoryLabel(recipe.mealCategory, t)}
+          </Text>
+          <View style={styles.metaRow}>
+            {recipe.calories != null ? (
+              <Text style={{ color: colors.textMuted }}>
+                {t('recipes.calories')}: {t('recipes.kcal', { count: recipe.calories })}
+              </Text>
+            ) : null}
+            {recipe.prepTimeMinutes != null ? (
+              <Text style={{ color: colors.textMuted }}>
+                {t('recipes.minutes', { count: recipe.prepTimeMinutes })}
+              </Text>
+            ) : null}
+          </View>
+          <View style={styles.macros}>
+            {recipe.protein != null ? (
+              <Text style={{ color: colors.text }}>{t('recipes.protein')}: {recipe.protein}g</Text>
+            ) : null}
+            {recipe.fat != null ? (
+              <Text style={{ color: colors.text }}>{t('recipes.fat')}: {recipe.fat}g</Text>
+            ) : null}
+            {recipe.carbs != null ? (
+              <Text style={{ color: colors.text }}>{t('recipes.carbs')}: {recipe.carbs}g</Text>
+            ) : null}
+          </View>
+        </View>
+
+        <Text style={[styles.section, { color: colors.text }]}>{t('recipes.ingredients')}</Text>
+        {recipe.ingredients.length === 0 ? (
+          <Text style={{ color: colors.textMuted }}>{t('recipes.noIngredients')}</Text>
+        ) : (
+          <>
+            <View style={styles.sortRow}>
+              <SortChip
+                label={`${t('ingredientCatalog.columns.name')}${sortIndicator(ingredientSort, 'name')}`}
+                active={ingredientSort.column === 'name'}
+                onPress={() => setIngredientSort((current) => nextSort(current, 'name'))}
+              />
+              <SortChip
+                label={`${t('diet.grams')}${sortIndicator(ingredientSort, 'amount')}`}
+                active={ingredientSort.column === 'amount'}
+                onPress={() => setIngredientSort((current) => nextSort(current, 'amount'))}
+              />
+            </View>
+            {sortedIngredients.map((ing) => (
+              <Text key={ing.id} style={[styles.line, { color: colors.text }]}>
+                • {ing.name}
+                {ing.amountGrams != null ? ` — ${ing.amountGrams}g` : ''}
+                {ing.unit ? ` ${ing.unit}` : ''}
+              </Text>
+            ))}
+          </>
+        )}
+
+        <Text style={[styles.section, { color: colors.text }]}>{t('recipes.preparation')}</Text>
+        {recipe.steps.length === 0 ? (
+          <Text style={{ color: colors.textMuted }}>{t('recipes.noSteps')}</Text>
+        ) : (
+          recipe.steps.map((step) => (
+            <Text key={step.id} style={[styles.step, { color: colors.text }]}>
+              {step.stepNumber}. {step.description}
+            </Text>
+          ))
+        )}
+      </Screen>
+    </>
+  );
+}
+
+function SortChip({ label, active, onPress }: { label: string; active: boolean; onPress: () => void }) {
+  const { colors } = useAppearance();
+  return (
+    <Pressable
+      onPress={onPress}
+      style={[
+        styles.sortChip,
+        {
+          backgroundColor: active ? colors.brand : colors.surface,
+          borderColor: active ? colors.brand : colors.border,
+        },
+      ]}
+    >
+      <Text style={{ color: active ? '#fff' : colors.text, fontWeight: '600', fontSize: 12 }}>{label}</Text>
+    </Pressable>
+  );
+}
+
+const styles = StyleSheet.create({
+  metaCard: {
+    borderWidth: 1,
+    borderRadius: 14,
+    padding: 14,
+    gap: 8,
+  },
+  category: {
+    fontSize: 14,
+    fontWeight: '700',
+    textTransform: 'uppercase',
+  },
+  metaRow: {
+    flexDirection: 'row',
+    flexWrap: 'wrap',
+    gap: 12,
+  },
+  macros: {
+    gap: 4,
+  },
+  section: {
+    fontSize: 18,
+    fontWeight: '700',
+    marginTop: 8,
+  },
+  sortRow: {
+    flexDirection: 'row',
+    flexWrap: 'wrap',
+    gap: 8,
+    marginBottom: 8,
+  },
+  sortChip: {
+    borderWidth: 1,
+    borderRadius: 999,
+    paddingHorizontal: 12,
+    paddingVertical: 6,
+  },
+  line: {
+    fontSize: 15,
+    lineHeight: 22,
+  },
+  step: {
+    fontSize: 15,
+    lineHeight: 22,
+    marginBottom: 6,
+  },
+});

meal-plan-frontend-mobile/app/(main)/recipe/edit/[id].tsx

@@ -0,0 +1,202 @@
+import { Stack, useLocalSearchParams, router } from 'expo-router';
+import { useEffect, useState } from 'react';
+import { Alert, Pressable, ScrollView, StyleSheet, Text, View } from 'react-native';
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+import { fetchIngredientCatalogItems } from '@/src/api/ingredient-catalog.api';
+import { updateRecipe } from '@/src/api/recipe-management.api';
+import { fetchRecipeById } from '@/src/api/recipes.api';
+import { Button } from '@/src/components/Button';
+import { ErrorView } from '@/src/components/ErrorView';
+import { Input } from '@/src/components/Input';
+import { Screen } from '@/src/components/Screen';
+import { useAppearance } from '@/src/context/AppearanceContext';
+import { MealCategory } from '@/src/types/recipe';
+import { extractApiError } from '@/src/utils/apiError';
+import { ingredientDisplayName } from '@/src/utils/ingredient-catalog.util';
+import { ALL_CATEGORIES, categoryLabel, parseOptionalNumber } from '@/src/utils/recipe';
+
+interface IngredientRow {
+  name: string;
+  amountGrams: string;
+  unit: string;
+  catalogItemId: number | null;
+}
+
+interface StepRow {
+  description: string;
+}
+
+export default function EditRecipeScreen() {
+  const { id } = useLocalSearchParams<{ id: string }>();
+  const recipeId = Number(id);
+  const { t, i18n } = useTranslation();
+  const { colors } = useAppearance();
+  const queryClient = useQueryClient();
+
+  const recipeQuery = useQuery({
+    queryKey: ['recipe', recipeId],
+    queryFn: () => fetchRecipeById(recipeId),
+    enabled: Number.isFinite(recipeId),
+  });
+
+  const catalogQuery = useQuery({
+    queryKey: ['ingredient-catalog', 'all'],
+    queryFn: () => fetchIngredientCatalogItems(),
+  });
+
+  const [name, setName] = useState('');
+  const [category, setCategory] = useState<MealCategory>(MealCategory.Lunch);
+  const [prepTime, setPrepTime] = useState('');
+  const [calories, setCalories] = useState('');
+  const [protein, setProtein] = useState('');
+  const [fat, setFat] = useState('');
+  const [carbs, setCarbs] = useState('');
+  const [ingredients, setIngredients] = useState<IngredientRow[]>([]);
+  const [steps, setSteps] = useState<StepRow[]>([]);
+  const [error, setError] = useState<string | null>(null);
+
+  useEffect(() => {
+    const recipe = recipeQuery.data;
+    if (!recipe) return;
+    setName(recipe.name);
+    setCategory(recipe.mealCategory);
+    setPrepTime(recipe.prepTimeMinutes?.toString() ?? '');
+    setCalories(recipe.calories?.toString() ?? '');
+    setProtein(recipe.protein?.toString() ?? '');
+    setFat(recipe.fat?.toString() ?? '');
+    setCarbs(recipe.carbs?.toString() ?? '');
+    setIngredients(
+      recipe.ingredients.length > 0
+        ? recipe.ingredients.map((i) => ({
+            name: i.name,
+            amountGrams: i.amountGrams?.toString() ?? '',
+            unit: i.unit ?? '',
+            catalogItemId: i.catalogItemId ?? null,
+          }))
+        : [{ name: '', amountGrams: '', unit: '', catalogItemId: null }],
+    );
+    setSteps(
+      recipe.steps.length > 0
+        ? recipe.steps.map((s) => ({ description: s.description }))
+        : [{ description: '' }],
+    );
+  }, [recipeQuery.data]);
+
+  const saveMutation = useMutation({
+    mutationFn: () => {
+      const filteredSteps = steps.filter((s) => s.description.trim());
+      return updateRecipe(recipeId, {
+        name: name.trim(),
+        mealCategory: category,
+        calories: parseOptionalNumber(calories),
+        protein: parseOptionalNumber(protein),
+        fat: parseOptionalNumber(fat),
+        carbs: parseOptionalNumber(carbs),
+        prepTimeMinutes: parseOptionalNumber(prepTime),
+        ingredients: ingredients
+          .filter((i) => i.name.trim())
+          .map((i, index) => ({
+            name: i.name.trim(),
+            amountGrams: parseOptionalNumber(i.amountGrams),
+            unit: i.unit,
+            catalogItemId: i.catalogItemId,
+            sortOrder: index,
+          })),
+        steps: filteredSteps.map((s, index) => ({ stepNumber: index + 1, description: s.description.trim() })),
+      });
+    },
+    onSuccess: (recipe) => {
+      queryClient.invalidateQueries({ queryKey: ['recipes'] });
+      queryClient.invalidateQueries({ queryKey: ['recipe', recipeId] });
+      Alert.alert(t('manage.title'), t('manage.updatedSuccess', { name: recipe.name }));
+      router.back();
+    },
+    onError: (err) => setError(extractApiError(err, t('errors.saveRecipeFailed'))),
+  });
+
+  if (!Number.isFinite(recipeId)) {
+    return (
+      <Screen>
+        <ErrorView message={t('errors.loadRecipeFailed')} />
+      </Screen>
+    );
+  }
+
+  if (recipeQuery.isLoading) return <Screen loading />;
+
+  if (recipeQuery.isError || !recipeQuery.data) {
+    return (
+      <Screen>
+        <ErrorView message={t('errors.loadRecipeFailed')} onRetry={() => recipeQuery.refetch()} />
+      </Screen>
+    );
+  }
+
+  const catalogItems = catalogQuery.data ?? [];
+
+  return (
+    <>
+      <Stack.Screen options={{ title: t('manage.editRecipe') }} />
+      <Screen title={t('manage.editRecipe')} subtitle={recipeQuery.data.name}>
+        <ScrollView contentContainerStyle={styles.scroll} keyboardShouldPersistTaps="handled">
+          <Input label={t('manage.recipeName')} value={name} onChangeText={setName} />
+          <Text style={[styles.label, { color: colors.text }]}>{t('common.category')}</Text>
+          <View style={styles.chips}>
+            {ALL_CATEGORIES.map((cat) => (
+              <Pressable
+                key={cat}
+                onPress={() => setCategory(cat)}
+                style={[styles.chip, { backgroundColor: category === cat ? colors.brand : colors.surface, borderColor: category === cat ? colors.brand : colors.border }]}
+              >
+                <Text style={{ color: category === cat ? '#fff' : colors.text, fontSize: 13 }}>{categoryLabel(cat, t)}</Text>
+              </Pressable>
+            ))}
+          </View>
+          <View style={styles.row}>
+            <View style={styles.half}><Input label={t('manage.prepTimeMin')} keyboardType="numeric" value={prepTime} onChangeText={setPrepTime} /></View>
+            <View style={styles.half}><Input label={t('manage.caloriesKcal')} keyboardType="numeric" value={calories} onChangeText={setCalories} /></View>
+          </View>
+          <Text style={[styles.section, { color: colors.text }]}>{t('recipes.ingredients')}</Text>
+          {ingredients.map((ing, index) => (
+            <View key={index} style={styles.block}>
+              <Input label={t('manage.ingredientName')} value={ing.name} onChangeText={(v) => { const next = [...ingredients]; next[index] = { ...next[index], name: v }; setIngredients(next); }} />
+              <Text style={[styles.label, { color: colors.text }]}>{t('manage.catalogItem')}</Text>
+              <ScrollView horizontal showsHorizontalScrollIndicator={false} contentContainerStyle={styles.chips}>
+                <Pressable onPress={() => { const next = [...ingredients]; next[index] = { ...next[index], catalogItemId: null }; setIngredients(next); }} style={[styles.chip, { backgroundColor: ing.catalogItemId == null ? colors.brand : colors.surface, borderColor: ing.catalogItemId == null ? colors.brand : colors.border }]}>
+                  <Text style={{ color: ing.catalogItemId == null ? '#fff' : colors.text, fontSize: 12 }}>{t('diet.noCatalogItem')}</Text>
+                </Pressable>
+                {catalogItems.map((item) => (
+                  <Pressable key={item.id} onPress={() => { const next = [...ingredients]; next[index] = { ...next[index], catalogItemId: item.id, name: ingredientDisplayName(item, i18n.language) }; setIngredients(next); }} style={[styles.chip, { backgroundColor: ing.catalogItemId === item.id ? colors.brand : colors.surface, borderColor: ing.catalogItemId === item.id ? colors.brand : colors.border }]}>
+                    <Text style={{ color: ing.catalogItemId === item.id ? '#fff' : colors.text, fontSize: 12 }}>{ingredientDisplayName(item, i18n.language)}</Text>
+                  </Pressable>
+                ))}
+              </ScrollView>
+              <View style={styles.row}>
+                <View style={styles.half}><Input label={t('manage.ingredientGrams')} keyboardType="numeric" value={ing.amountGrams} onChangeText={(v) => { const next = [...ingredients]; next[index] = { ...next[index], amountGrams: v }; setIngredients(next); }} /></View>
+                <View style={styles.half}><Input label={t('manage.ingredientUnit')} value={ing.unit} onChangeText={(v) => { const next = [...ingredients]; next[index] = { ...next[index], unit: v }; setIngredients(next); }} /></View>
+              </View>
+            </View>
+          ))}
+          <Text style={[styles.section, { color: colors.text }]}>{t('manage.preparationSteps')}</Text>
+          {steps.map((step, index) => (
+            <Input key={index} label={`${index + 1}.`} value={step.description} onChangeText={(v) => { const next = [...steps]; next[index] = { description: v }; setSteps(next); }} multiline />
+          ))}
+          {error ? <Text style={{ color: colors.danger }}>{error}</Text> : null}
+          <Button title={t('common.save')} loading={saveMutation.isPending} onPress={() => saveMutation.mutate()} />
+        </ScrollView>
+      </Screen>
+    </>
+  );
+}
+
+const styles = StyleSheet.create({
+  scroll: { gap: 12, paddingBottom: 32 },
+  section: { fontSize: 18, fontWeight: '700' },
+  label: { fontSize: 14, fontWeight: '600' },
+  chips: { flexDirection: 'row', flexWrap: 'wrap', gap: 8 },
+  chip: { borderWidth: 1, borderRadius: 999, paddingHorizontal: 12, paddingVertical: 8 },
+  row: { flexDirection: 'row', gap: 10 },
+  half: { flex: 1 },
+  block: { gap: 8 },
+});