From baef5a0af21656aeef5a77d8cb44ff26ea97d56d Mon Sep 17 00:00:00 2001
From: AlexBelyan <belyan.alex93@gmail.com>
Date: Sun, 17 May 2026 18:36:14 +0300
Subject: [PATCH] =?UTF-8?q?2=20=D0=A1=D0=B4=D0=B5=D0=BB=D0=B0=D1=82=D1=8C?=
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---
 frontend/.nvmrc                              |   1 +
 frontend/package.json                        |   7 +-
 frontend/src/App.vue                         |   1 +
 frontend/src/api/transactions.ts             |  43 +++
 frontend/src/components/FinanceScreen.vue    |   7 +-
 frontend/src/components/TransactionsList.vue | 378 ++++++++++++-------
 frontend/src/i18n.ts                         |   8 +
 7 files changed, 309 insertions(+), 136 deletions(-)
 create mode 100644 frontend/.nvmrc
 create mode 100644 frontend/src/api/transactions.ts

diff --git a/frontend/.nvmrc b/frontend/.nvmrc
new file mode 100644
index 0000000..609800f
--- /dev/null
+++ b/frontend/.nvmrc
@@ -0,0 +1 @@
+25.8.2
\ No newline at end of file
diff --git a/frontend/package.json b/frontend/package.json
index 7249172..06f670f 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -23,5 +23,10 @@
     "overrides": {
       "vite": "6.3.5"
     }
-  }
+  },
+  "engines": {
+    "node": "^25.5.2",
+    "npm": ">=10"
+  },
+  "packageManager": "npm@11.11.1"
 }
diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index cabf6b2..0014ebc 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -57,6 +57,7 @@ onMounted(() => {
 <template>
   <FinanceScreen
     v-if="activeScreen === 'finance'"
+    :family-id="Number.isFinite(configuredFamilyId) && configuredFamilyId > 0 ? configuredFamilyId : undefined"
     @navigate="handleNavigate"
   />
 
diff --git a/frontend/src/api/transactions.ts b/frontend/src/api/transactions.ts
new file mode 100644
index 0000000..c9e1cbd
--- /dev/null
+++ b/frontend/src/api/transactions.ts
@@ -0,0 +1,43 @@
+export interface Transaction {
+  id: number
+  family_id: number
+  description: string | null
+  type: string
+  datetime: string
+  category: string
+  amount: number
+  created_at: string
+  created_by: number
+  receipt_id: number | null
+}
+
+interface TransactionsResponse {
+  items: Transaction[]
+}
+
+interface GetTransactionsOptions {
+  familyId?: number
+  limit?: number
+  offset?: number
+}
+
+export async function getTransactions(options: GetTransactionsOptions = {}): Promise<Transaction[]> {
+  const params = new URLSearchParams()
+
+  if (typeof options.familyId === 'number' && Number.isFinite(options.familyId) && options.familyId > 0) {
+    params.set('family_id', String(options.familyId))
+  }
+
+  params.set('limit', String(options.limit ?? 100))
+  params.set('offset', String(options.offset ?? 0))
+
+  const query = params.toString()
+  const response = await fetch(`/api/v1/transactions${query ? `?${query}` : ''}`)
+
+  if (!response.ok) {
+    throw new Error(`Failed to fetch transactions: ${response.status}`)
+  }
+
+  const payload = await response.json() as TransactionsResponse
+  return Array.isArray(payload.items) ? payload.items : []
+}
diff --git a/frontend/src/components/FinanceScreen.vue b/frontend/src/components/FinanceScreen.vue
index 6964a8b..b0c1e59 100644
--- a/frontend/src/components/FinanceScreen.vue
+++ b/frontend/src/components/FinanceScreen.vue
@@ -13,6 +13,11 @@ type Tab = 'transactions' | 'analytics' | 'categories';
 const emit = defineEmits<{
   navigate: [screen: string];
 }>();
+
+defineProps<{
+  familyId?: number;
+}>();
+
 const { t } = useI18n();
 
 const activeTab = ref<Tab>('transactions');
@@ -76,7 +81,7 @@ const tabs = computed<Array<{ id: Tab; label: string }>>(() => [
           </div>
         </div>
 
-        <TransactionsList v-if="activeTab === 'transactions'" />
+        <TransactionsList v-if="activeTab === 'transactions'" :family-id="familyId" />
         <AnalyticsView v-else-if="activeTab === 'analytics'" />
         <CategoriesView v-else />
       </main>
diff --git a/frontend/src/components/TransactionsList.vue b/frontend/src/components/TransactionsList.vue
index 386a36a..ea7250d 100644
--- a/frontend/src/components/TransactionsList.vue
+++ b/frontend/src/components/TransactionsList.vue
@@ -1,21 +1,24 @@
 <script setup lang="ts">
-import { type Component } from 'vue';
+import { computed, ref, watch, type Component } from 'vue';
 import {
   Car,
   Coffee,
+  CircleDollarSign,
   Film,
   Heart,
   Home,
+  Receipt,
   ShoppingBag,
   TrendingUp,
   Utensils,
 } from 'lucide-vue-next';
 import { useI18n } from '../i18n';
+import { getTransactions, type Transaction as ApiTransaction } from '../api/transactions';
 
-interface Transaction {
-  id: string;
+interface TransactionViewModel {
+  id: number;
   title: string;
-  categoryKey: string;
+  categoryLabel: string;
   amount: number;
   type: 'income' | 'expense';
   icon: Component;
@@ -24,12 +27,17 @@ interface Transaction {
 }
 
 interface TransactionGroup {
-  dateKey: string;
+  id: string;
+  label: string;
   total: number;
-  transactions: Transaction[];
+  transactions: TransactionViewModel[];
 }
 
-const { t } = useI18n();
+const props = defineProps<{
+  familyId?: number;
+}>();
+
+const { locale, t } = useI18n();
 
 const colorMap = {
   emerald: { bg: 'bg-emerald-500/10', text: 'text-emerald-400' },
@@ -42,144 +50,246 @@ const colorMap = {
   indigo: { bg: 'bg-indigo-500/10', text: 'text-indigo-400' },
 } as const;
 
-const transactionGroups: TransactionGroup[] = [
-  {
-    dateKey: 'finance.transactions.today',
-    total: -245.5,
-    transactions: [
-      {
-        id: '1',
-        title: 'Whole Foods Market',
-        categoryKey: 'finance.category.groceries',
-        amount: -124.5,
-        type: 'expense',
-        icon: ShoppingBag,
-        color: 'emerald',
-        time: '2:30 PM',
-      },
-      {
-        id: '2',
-        title: 'Uber Eats',
-        categoryKey: 'finance.category.foodDining',
-        amount: -45,
-        type: 'expense',
-        icon: Utensils,
-        color: 'orange',
-        time: '12:15 PM',
-      },
-      {
-        id: '3',
-        title: 'Starbucks',
-        categoryKey: 'finance.category.coffee',
-        amount: -12.5,
-        type: 'expense',
-        icon: Coffee,
-        color: 'amber',
-        time: '9:00 AM',
-      },
-      {
-        id: '4',
-        title: 'Freelance Payment',
-        categoryKey: 'finance.category.income',
-        amount: 850,
-        type: 'income',
-        icon: TrendingUp,
-        color: 'blue',
-        time: '8:00 AM',
-      },
-    ],
+const transactions = ref<ApiTransaction[]>([]);
+const isLoading = ref(false);
+const errorMessage = ref('');
+
+const categoryPresentationMap: Record<string, { icon: Component; color: keyof typeof colorMap; labelKey?: string }> = {
+  groceries: { icon: ShoppingBag, color: 'emerald', labelKey: 'finance.category.groceries' },
+  shopping: { icon: ShoppingBag, color: 'emerald' },
+  food: { icon: Utensils, color: 'orange', labelKey: 'finance.category.foodDining' },
+  food_dining: { icon: Utensils, color: 'orange', labelKey: 'finance.category.foodDining' },
+  dining: { icon: Utensils, color: 'orange', labelKey: 'finance.category.foodDining' },
+  coffee: { icon: Coffee, color: 'amber', labelKey: 'finance.category.coffee' },
+  income: { icon: TrendingUp, color: 'blue', labelKey: 'finance.category.income' },
+  transport: { icon: Car, color: 'red', labelKey: 'finance.category.transport' },
+  entertainment: { icon: Film, color: 'purple', labelKey: 'finance.category.entertainment' },
+  donation: { icon: Heart, color: 'pink', labelKey: 'finance.category.donation' },
+  housing: { icon: Home, color: 'indigo', labelKey: 'finance.category.housing' },
+  rent: { icon: Home, color: 'indigo' },
+  receipt: { icon: Receipt, color: 'blue' },
+};
+
+const intlLocale = computed(() => (locale.value === 'ru' ? 'ru-RU' : 'en-US'));
+const currencyFormatter = computed(() => new Intl.NumberFormat(intlLocale.value, {
+  style: 'currency',
+  currency: 'USD',
+  minimumFractionDigits: 2,
+  maximumFractionDigits: 2,
+}));
+
+const transactionGroups = computed<TransactionGroup[]>(() => {
+  const groups = new Map<string, TransactionGroup>();
+
+  for (const transaction of transactions.value) {
+    const date = new Date(transaction.datetime);
+    const groupId = getGroupId(date);
+    const signedAmount = getSignedAmount(transaction);
+
+    if (!groups.has(groupId)) {
+      groups.set(groupId, {
+        id: groupId,
+        label: formatGroupLabel(date),
+        total: 0,
+        transactions: [],
+      });
+    }
+
+    const group = groups.get(groupId);
+    if (!group) {
+      continue;
+    }
+
+    const presentation = getCategoryPresentation(transaction.category, transaction.type);
+
+    group.total += signedAmount;
+    group.transactions.push({
+      id: transaction.id,
+      title: getTransactionTitle(transaction),
+      categoryLabel: getCategoryLabel(transaction.category),
+      amount: transaction.amount,
+      type: transaction.type === 'income' ? 'income' : 'expense',
+      icon: presentation.icon,
+      color: presentation.color,
+      time: formatTime(date),
+    });
+  }
+
+  return Array.from(groups.values());
+});
+
+async function loadTransactions() {
+  isLoading.value = true;
+  errorMessage.value = '';
+
+  try {
+    transactions.value = await getTransactions({ familyId: props.familyId });
+  } catch (error) {
+    console.error('Failed to load transactions', error);
+    errorMessage.value = t('finance.transactions.error');
+    transactions.value = [];
+  } finally {
+    isLoading.value = false;
+  }
+}
+
+function getSignedAmount(transaction: ApiTransaction): number {
+  return transaction.type === 'income' ? transaction.amount : -transaction.amount;
+}
+
+function getCategoryPresentation(category: string, type: string) {
+  const normalizedCategory = normalizeKey(category);
+
+  if (type === 'income') {
+    return categoryPresentationMap.income;
+  }
+
+  return categoryPresentationMap[normalizedCategory] ?? { icon: CircleDollarSign, color: 'blue' as const };
+}
+
+function getCategoryLabel(category: string): string {
+  const presentation = categoryPresentationMap[normalizeKey(category)];
+
+  if (presentation?.labelKey) {
+    return t(presentation.labelKey);
+  }
+
+  return humanizeCategory(category);
+}
+
+function getTransactionTitle(transaction: ApiTransaction): string {
+  const description = transaction.description?.trim();
+  if (description) {
+    return description;
+  }
+
+  return getCategoryLabel(transaction.category) || t('finance.transactions.untitled');
+}
+
+function getGroupId(date: Date): string {
+  const year = date.getFullYear();
+  const month = String(date.getMonth() + 1).padStart(2, '0');
+  const day = String(date.getDate()).padStart(2, '0');
+  return `${year}-${month}-${day}`;
+}
+
+function formatGroupLabel(date: Date): string {
+  const today = new Date();
+  const yesterday = new Date();
+  yesterday.setDate(today.getDate() - 1);
+
+  if (isSameDate(date, today)) {
+    return t('finance.transactions.today');
+  }
+
+  if (isSameDate(date, yesterday)) {
+    return t('finance.transactions.yesterday');
+  }
+
+  const options: Intl.DateTimeFormatOptions = date.getFullYear() === today.getFullYear()
+    ? { day: 'numeric', month: 'short' }
+    : { day: 'numeric', month: 'short', year: 'numeric' };
+
+  return new Intl.DateTimeFormat(intlLocale.value, options).format(date);
+}
+
+function formatTime(date: Date): string {
+  return new Intl.DateTimeFormat(intlLocale.value, {
+    hour: 'numeric',
+    minute: '2-digit',
+  }).format(date);
+}
+
+function formatAmount(amount: number): string {
+  return currencyFormatter.value.format(Math.abs(amount));
+}
+
+function isSameDate(left: Date, right: Date): boolean {
+  return left.getFullYear() === right.getFullYear()
+    && left.getMonth() === right.getMonth()
+    && left.getDate() === right.getDate();
+}
+
+function normalizeKey(value: string): string {
+  return value.trim().toLowerCase().replace(/[\s-]+/g, '_');
+}
+
+function humanizeCategory(value: string): string {
+  return value
+    .trim()
+    .replace(/[_-]+/g, ' ')
+    .replace(/\s+/g, ' ')
+    .replace(/\b\w/g, (letter) => letter.toUpperCase());
+}
+
+watch(
+  () => props.familyId,
+  () => {
+    void loadTransactions();
   },
-  {
-    dateKey: 'finance.transactions.yesterday',
-    total: -89.99,
-    transactions: [
-      {
-        id: '5',
-        title: 'Shell Gas Station',
-        categoryKey: 'finance.category.transport',
-        amount: -65,
-        type: 'expense',
-        icon: Car,
-        color: 'red',
-        time: '6:45 PM',
-      },
-      {
-        id: '6',
-        title: 'Netflix Subscription',
-        categoryKey: 'finance.category.entertainment',
-        amount: -15.99,
-        type: 'expense',
-        icon: Film,
-        color: 'purple',
-        time: '12:00 PM',
-      },
-      {
-        id: '7',
-        title: 'Charity Donation',
-        categoryKey: 'finance.category.donation',
-        amount: -25,
-        type: 'expense',
-        icon: Heart,
-        color: 'pink',
-        time: '10:30 AM',
-      },
-    ],
-  },
-  {
-    dateKey: 'finance.transactions.apr1',
-    total: -1250,
-    transactions: [
-      {
-        id: '8',
-        title: 'Rent Payment',
-        categoryKey: 'finance.category.housing',
-        amount: -1250,
-        type: 'expense',
-        icon: Home,
-        color: 'indigo',
-        time: '9:00 AM',
-      },
-    ],
-  },
-];
+  { immediate: true },
+);
 </script>
 
 <template>
   <div class="space-y-6">
-    <div v-for="group in transactionGroups" :key="group.dateKey">
-      <div class="mb-3 flex items-center justify-between px-1">
-        <h3 class="text-[14px] font-semibold text-white">{{ t(group.dateKey) }}</h3>
-        <span :class="['text-[13px] font-semibold', group.total >= 0 ? 'text-emerald-400' : 'text-zinc-400']">
-          {{ group.total >= 0 ? '+' : '' }}${{ Math.abs(group.total).toFixed(2) }}
-        </span>
-      </div>
+    <div
+      v-if="isLoading"
+      class="rounded-[16px] border border-white/[0.06] bg-[#16161F] px-4 py-6 text-center text-[14px] text-zinc-400"
+    >
+      {{ t('finance.transactions.loading') }}
+    </div>
 
-      <div class="space-y-2">
-        <div
-          v-for="transaction in group.transactions"
-          :key="transaction.id"
-          class="group flex cursor-pointer items-center gap-3 rounded-[16px] border border-white/[0.06] bg-[#16161F] p-3.5 transition-all hover:border-white/[0.1] hover:bg-[#1A1A24]"
-        >
-          <div :class="['flex h-11 w-11 flex-shrink-0 items-center justify-center rounded-[13px] transition-transform group-hover:scale-110', colorMap[transaction.color].bg]">
-            <component :is="transaction.icon" :class="['h-[19px] w-[19px]', colorMap[transaction.color].text]" :stroke-width="2" />
-          </div>
+    <div
+      v-else-if="errorMessage"
+      class="rounded-[16px] border border-rose-500/20 bg-rose-500/10 px-4 py-6 text-center text-[14px] text-rose-200"
+    >
+      {{ errorMessage }}
+    </div>
 
-          <div class="min-w-0 flex-1">
-            <p class="mb-0.5 truncate text-[14px] font-semibold text-white">{{ transaction.title }}</p>
-            <div class="flex items-center gap-2">
-              <span class="text-[12px] text-zinc-500">{{ t(transaction.categoryKey) }}</span>
-              <span class="text-zinc-700">•</span>
-              <span class="text-[12px] text-zinc-600">{{ transaction.time }}</span>
+    <div
+      v-else-if="transactionGroups.length === 0"
+      class="rounded-[16px] border border-white/[0.06] bg-[#16161F] px-4 py-6 text-center text-[14px] text-zinc-400"
+    >
+      {{ t('finance.transactions.empty') }}
+    </div>
+
+    <template v-else>
+      <div v-for="group in transactionGroups" :key="group.id">
+        <div class="mb-3 flex items-center justify-between px-1">
+          <h3 class="text-[14px] font-semibold text-white">{{ group.label }}</h3>
+          <span :class="['text-[13px] font-semibold', group.total >= 0 ? 'text-emerald-400' : 'text-zinc-400']">
+            {{ group.total >= 0 ? '+' : '-' }}{{ formatAmount(group.total) }}
+          </span>
+        </div>
+
+        <div class="space-y-2">
+          <div
+            v-for="transaction in group.transactions"
+            :key="transaction.id"
+            class="group flex cursor-pointer items-center gap-3 rounded-[16px] border border-white/[0.06] bg-[#16161F] p-3.5 transition-all hover:border-white/[0.1] hover:bg-[#1A1A24]"
+          >
+            <div :class="['flex h-11 w-11 flex-shrink-0 items-center justify-center rounded-[13px] transition-transform group-hover:scale-110', colorMap[transaction.color].bg]">
+              <component :is="transaction.icon" :class="['h-[19px] w-[19px]', colorMap[transaction.color].text]" :stroke-width="2" />
             </div>
-          </div>
 
-          <div class="text-right">
-            <p :class="['text-[15px] font-bold', transaction.type === 'income' ? 'text-emerald-400' : 'text-white']">
-              {{ transaction.type === 'income' ? '+' : '-' }}${{ Math.abs(transaction.amount).toFixed(2) }}
-            </p>
+            <div class="min-w-0 flex-1">
+              <p class="mb-0.5 truncate text-[14px] font-semibold text-white">{{ transaction.title }}</p>
+              <div class="flex items-center gap-2">
+                <span class="text-[12px] text-zinc-500">{{ transaction.categoryLabel }}</span>
+                <span class="text-zinc-700">•</span>
+                <span class="text-[12px] text-zinc-600">{{ transaction.time }}</span>
+              </div>
+            </div>
+
+            <div class="text-right">
+              <p :class="['text-[15px] font-bold', transaction.type === 'income' ? 'text-emerald-400' : 'text-white']">
+                {{ transaction.type === 'income' ? '+' : '-' }}{{ formatAmount(transaction.amount) }}
+              </p>
+            </div>
           </div>
         </div>
       </div>
-    </div>
+    </template>
   </div>
 </template>
diff --git a/frontend/src/i18n.ts b/frontend/src/i18n.ts
index acb77d6..8ea2692 100644
--- a/frontend/src/i18n.ts
+++ b/frontend/src/i18n.ts
@@ -75,6 +75,10 @@ const messages: Record<Locale, Messages> = {
     'finance.transactions.today': 'Today',
     'finance.transactions.yesterday': 'Yesterday',
     'finance.transactions.apr1': 'Apr 1',
+    'finance.transactions.loading': 'Loading transactions...',
+    'finance.transactions.empty': 'No transactions yet',
+    'finance.transactions.error': 'Failed to load transactions',
+    'finance.transactions.untitled': 'Transaction',
     'finance.category.groceries': 'Groceries',
     'finance.category.foodDining': 'Food & Dining',
     'finance.category.coffee': 'Coffee',
@@ -217,6 +221,10 @@ const messages: Record<Locale, Messages> = {
     'finance.transactions.today': 'Сегодня',
     'finance.transactions.yesterday': 'Вчера',
     'finance.transactions.apr1': '1 апр',
+    'finance.transactions.loading': 'Загрузка транзакций...',
+    'finance.transactions.empty': 'Транзакций пока нет',
+    'finance.transactions.error': 'Не удалось загрузить транзакции',
+    'finance.transactions.untitled': 'Транзакция',
     'finance.category.groceries': 'Продукты',
     'finance.category.foodDining': 'Еда и рестораны',
     'finance.category.coffee': 'Кофе',