refactor: little structure refactor

AGENTS.md

@@ -19,6 +19,7 @@ Node 22 обязателен (`.nvmrc`). `npm run openapi:sync` - единств
 - Перед созданием формы, страницы или UI-состояний прочитать [`docs/UI-PATTERN.md`](docs/UI-PATTERN.md).
 - Перед изменением структуры слайса или импортов прочитать [`docs/STRUCTURE.md`](docs/STRUCTURE.md).
 - Перед кодом, тестами или quality checks прочитать [`docs/CONVENTIONS.md`](docs/CONVENTIONS.md) и [`docs/TESTING.md`](docs/TESTING.md).
+- Route-level runtime errors обрабатываются одним native route-keyed ErrorBoundary вокруг `AppRoutes`; expected API states остаются локальными.
 
 ## Границы
 

docs/TESTING.md

@@ -5,3 +5,5 @@
 MSW запускается только Vitest setup в `src/test/`; handlers покрывают текущий API. Не добавлять service worker, browser mocking или mock development mode. Для transport проверять заголовки и retry через MSW, не через реальный backend.
 
 Проверяйте наблюдаемое поведение, а не детали реализации. UI-тест строится как Arrange, Act, Assert; для интерактивных действий предпочитайте `userEvent`. Форма должна проверять валидацию и отсутствие запроса при невалидных данных; маршруты - редиректы и доступность экрана.
+
+Colocated tests finance views фиксируют выбор loading/error/empty/loaded и доступные recovery actions. Route boundary tests используют test-only throwing route и проверяют безопасную ссылку и reset после navigation.

docs/UI-PATTERN.md

@@ -5,3 +5,5 @@
 Во время submit все действия формы блокируются. Ошибки Zod отображаются у поля; ошибки сети сохраняют введённые значения и показываются отдельным `Alert`.
 
 Запросные экраны выбирают состояние в порядке loading, error, empty, loaded. Состояния имеют отдельные компоненты, если повторяются или содержат самостоятельную разметку.
+
+Для finance-экранов container вызывает query hooks, VM выбирает состояние и передает только presentation props в Loading/Error/Empty/Loaded view. Known API errors, retry и stale snapshot остаются local views, а непойманные route errors обрабатывает общий route-keyed ErrorBoundary.

src/app/routes/RouteErrorBoundary.test.tsx

@@ -0,0 +1,69 @@
+import { MantineProvider } from "@mantine/core";
+import { cleanup, render, screen, waitFor } from "@testing-library/react";
+import { MemoryRouter, useLocation, useNavigate } from "react-router";
+import { afterEach, describe, expect, it, vi } from "vitest";
+import { RouteErrorBoundary } from "./RouteErrorBoundary";
+
+let authenticated = false;
+vi.mock("@/features/auth", () => ({
+	useAuth: () => ({ user: authenticated ? {} : null }),
+}));
+
+function ThrowingRoute(): never {
+	throw new Error("test route failure");
+}
+function HealthyRoute() {
+	return (
+		<div>
+			{useLocation().pathname === "/healthy" ? (
+				"healthy route"
+			) : (
+				<ThrowingRoute />
+			)}
+		</div>
+	);
+}
+function RouteHarness() {
+	const navigate = useNavigate();
+	return (
+		<>
+			<button type="button" onClick={() => navigate("/healthy")}>
+				go healthy
+			</button>
+			<RouteErrorBoundary>
+				<HealthyRoute />
+			</RouteErrorBoundary>
+		</>
+	);
+}
+function renderBoundary(path: string) {
+	return render(
+		<MantineProvider>
+			<MemoryRouter initialEntries={[path]}>
+				<RouteHarness />
+			</MemoryRouter>
+		</MantineProvider>,
+	);
+}
+
+describe("RouteErrorBoundary", () => {
+	afterEach(cleanup);
+	it("offers login after a public route error without error details", () => {
+		authenticated = false;
+		renderBoundary("/login");
+		expect(screen.getByRole("link", { name: "Продолжить" })).toHaveAttribute(
+			"href",
+			"/login",
+		);
+		expect(screen.queryByText("test route failure")).not.toBeInTheDocument();
+	});
+
+	it("offers accounts after a protected route error and resets on navigation", async () => {
+		authenticated = true;
+		renderBoundary("/accounts");
+		screen.getByRole("button", { name: "go healthy" }).click();
+		await waitFor(() =>
+			expect(screen.getByText("healthy route")).toBeInTheDocument(),
+		);
+	});
+});

src/app/routes/RouteErrorBoundary.tsx

@@ -0,0 +1,61 @@
+import { Button, Stack, Text, Title } from "@mantine/core";
+import { Component } from "react";
+import { useTranslation } from "react-i18next";
+import { Link, useLocation } from "react-router";
+import { useAuth } from "@/features/auth";
+
+type Props = {
+	children: React.ReactNode;
+	routeKey: string;
+	authenticated: boolean;
+};
+type State = { hasError: boolean };
+
+class Boundary extends Component<Props, State> {
+	state: State = { hasError: false };
+
+	static getDerivedStateFromError(): State {
+		return { hasError: true };
+	}
+
+	componentDidUpdate(previousProps: Props) {
+		if (previousProps.routeKey !== this.props.routeKey && this.state.hasError) {
+			this.setState({ hasError: false });
+		}
+	}
+
+	render() {
+		if (this.state.hasError) {
+			return <RouteErrorFallback authenticated={this.props.authenticated} />;
+		}
+		return this.props.children;
+	}
+}
+
+function RouteErrorFallback({ authenticated }: { authenticated: boolean }) {
+	const { t } = useTranslation();
+	const to = authenticated ? "/accounts" : "/login";
+	return (
+		<Stack>
+			<Title order={1}>{t("routeError.title")}</Title>
+			<Text>{t("routeError.text")}</Text>
+			<Button component={Link} to={to}>
+				{t("routeError.action")}
+			</Button>
+		</Stack>
+	);
+}
+
+export function RouteErrorBoundary({
+	children,
+}: {
+	children: React.ReactNode;
+}) {
+	const { pathname, search } = useLocation();
+	const { user } = useAuth();
+	return (
+		<Boundary authenticated={Boolean(user)} routeKey={`${pathname}${search}`}>
+			{children}
+		</Boundary>
+	);
+}

src/app/ui/App.tsx

@@ -2,6 +2,7 @@ import { MantineProvider } from "@mantine/core";
 import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
 import { BrowserRouter } from "react-router";
 import { AppRoutes } from "@/app/routes";
+import { RouteErrorBoundary } from "@/app/routes/RouteErrorBoundary";
 import { theme } from "@/app/theme";
 import { AuthProvider } from "@/features/auth";
 
@@ -15,7 +16,9 @@ export function App() {
 			<QueryClientProvider client={queryClient}>
 				<BrowserRouter>
 					<AuthProvider>
-						<AppRoutes />
+						<RouteErrorBoundary>
+							<AppRoutes />
+						</RouteErrorBoundary>
 					</AuthProvider>
 				</BrowserRouter>
 			</QueryClientProvider>

src/features/tbank-connection/ui/TbankConnectionSection.tsx

@@ -6,14 +6,18 @@ import {
 	Stack,
 	Text,
 } from "@mantine/core";
-import { useQuery, useQueryClient } from "@tanstack/react-query";
+import { useQueryClient } from "@tanstack/react-query";
 import { useState } from "react";
 import { useForm } from "react-hook-form";
 import { useTranslation } from "react-i18next";
 import { brokerageAccountsQueryKey } from "@/entities/brokerage-account";
 import { apiQueryClient } from "@/shared/api";
 import type { paths } from "@/shared/api/generated/schema";
-import { useAuth } from "../../auth";
+import {
+	TbankConnectionError,
+	TbankConnectionLoading,
+} from "./TbankConnectionSection.view";
+import { useTbankConnectionViewModel } from "./TbankConnectionSection.vm";
 
 type Status =
 	paths["/api/v1/tbank-connection"]["get"]["responses"][200]["content"]["application/json"];
@@ -25,8 +29,15 @@ function errorCode(error: unknown): string | undefined {
 }
 
 export function TbankConnectionSection() {
+	const viewModel = useTbankConnectionViewModel();
+	if (viewModel.state === "loading") return <TbankConnectionLoading />;
+	if (viewModel.state === "error")
+		return <TbankConnectionError retry={viewModel.retry} />;
+	return <TbankConnectionSectionLoaded status={viewModel.status} />;
+}
+
+function TbankConnectionSectionLoaded({ status }: { status: Status }) {
 	const { t } = useTranslation();
-	const { accessToken } = useAuth();
 	const queryClient = useQueryClient();
 	const [deleteOpened, setDeleteOpened] = useState(false);
 	const [requestError, setRequestError] = useState<string | null>(null);
@@ -36,11 +47,6 @@ export function TbankConnectionSection() {
 		reset,
 		formState: { errors },
 	} = useForm<{ token: string }>();
-	const status = useQuery({
-		queryKey: ["tbank-connection"],
-		enabled: Boolean(accessToken),
-		...apiQueryClient.queryOptions("get", "/api/v1/tbank-connection"),
-	});
 	const update = apiQueryClient.useMutation("put", "/api/v1/tbank-connection", {
 		onSuccess: (data) => {
 			queryClient.setQueryData(["tbank-connection"], data);
@@ -66,25 +72,16 @@ export function TbankConnectionSection() {
 	);
 	const pending = update.isPending || remove.isPending;
 
-	if (status.isPending) return <Text>{t("states.loadingText")}</Text>;
-	if (status.isError)
-		return (
-			<Alert color="red" title={t("tbank.statusError")}>
-				<Button variant="subtle" onClick={() => status.refetch()}>
-					{t("tbank.retry")}
-				</Button>
-			</Alert>
-		);
-	const connected = status.data.connected;
+	const connected = status.connected;
 	return (
 		<Stack mt="xl">
 			<Text fw={600}>{t("tbank.title")}</Text>
 			<Text size="sm">
 				{connected
 					? t("tbank.connected", {
-							date: new Date(
-								String(status.data.connectedAt),
-							).toLocaleDateString("ru-RU"),
+							date: new Date(String(status.connectedAt)).toLocaleDateString(
+								"ru-RU",
+							),
 						})
 					: t("tbank.disconnected")}
 			</Text>

src/features/tbank-connection/ui/TbankConnectionSection.view.test.tsx

@@ -0,0 +1,26 @@
+import { MantineProvider } from "@mantine/core";
+import { render, screen } from "@testing-library/react";
+import { describe, expect, it, vi } from "vitest";
+import {
+	TbankConnectionError,
+	TbankConnectionLoading,
+} from "./TbankConnectionSection.view";
+
+describe("TbankConnectionSection state views", () => {
+	it("renders loading and retries a status error", () => {
+		const retry = vi.fn();
+		const { rerender } = render(
+			<MantineProvider>
+				<TbankConnectionLoading />
+			</MantineProvider>,
+		);
+		expect(screen.getByText("Пожалуйста, подождите.")).toBeInTheDocument();
+		rerender(
+			<MantineProvider>
+				<TbankConnectionError retry={retry} />
+			</MantineProvider>,
+		);
+		screen.getByRole("button", { name: "Повторить" }).click();
+		expect(retry).toHaveBeenCalledOnce();
+	});
+});

src/features/tbank-connection/ui/TbankConnectionSection.view.tsx

@@ -0,0 +1,17 @@
+import { Alert, Button, Text } from "@mantine/core";
+import { useTranslation } from "react-i18next";
+
+export function TbankConnectionLoading() {
+	const { t } = useTranslation();
+	return <Text>{t("states.loadingText")}</Text>;
+}
+export function TbankConnectionError({ retry }: { retry: () => void }) {
+	const { t } = useTranslation();
+	return (
+		<Alert color="red" title={t("tbank.statusError")}>
+			<Button variant="subtle" onClick={retry}>
+				{t("tbank.retry")}
+			</Button>
+		</Alert>
+	);
+}

src/features/tbank-connection/ui/TbankConnectionSection.vm.ts

@@ -0,0 +1,16 @@
+import { useQuery } from "@tanstack/react-query";
+import { useAuth } from "@/features/auth";
+import { apiQueryClient } from "@/shared/api";
+
+export function useTbankConnectionViewModel() {
+	const { accessToken } = useAuth();
+	const status = useQuery({
+		queryKey: ["tbank-connection"],
+		enabled: Boolean(accessToken),
+		...apiQueryClient.queryOptions("get", "/api/v1/tbank-connection"),
+	});
+	if (status.isPending) return { state: "loading" as const };
+	if (status.isError)
+		return { state: "error" as const, retry: () => status.refetch() };
+	return { state: "loaded" as const, status: status.data };
+}

src/pages/account/ui/AccountPage.tsx

@@ -1,260 +1,28 @@
 import {
-	Alert,
-	Button,
-	Card,
-	Group,
-	Paper,
-	SimpleGrid,
-	Stack,
-	Text,
-	Title,
-} from "@mantine/core";
-import { useQueryClient } from "@tanstack/react-query";
-import { useTranslation } from "react-i18next";
-import { Link, useParams } from "react-router";
-import {
-	accountTypeKey,
-	type BrokerageAccount,
-} from "@/entities/brokerage-account";
-import type { Portfolio } from "@/entities/portfolio";
-import {
-	formatMoney,
-	formatSnapshotTime,
-	portfolioErrorCode,
-	usePortfolio,
-} from "@/entities/portfolio";
-import { useAuth } from "@/features/auth";
-import { StateView } from "@/shared/ui";
-import classes from "./AccountPage.module.css";
-
-const accountsQueryKey = ["brokerage-accounts"] as const;
+	AccountPageEmpty,
+	AccountPageError,
+	AccountPageLoaded,
+	AccountPageLoading,
+} from "./AccountPage.view";
+import { useAccountPageViewModel } from "./AccountPage.vm";
 
 export function AccountPage() {
-	const { accountId } = useParams();
-	const { accessToken } = useAuth();
-	const portfolio = usePortfolio(accountId, accessToken);
-	const account = useQueryClient()
-		.getQueryData<BrokerageAccount[]>(accountsQueryKey)
-		?.find((item) => item.id === accountId);
-
-	if (portfolio.isFetching) return <AccountPageLoading />;
-	if (portfolio.isError)
-		return (
-			<AccountPageError
-				code={portfolioErrorCode(portfolio.error)}
-				retry={() => portfolio.refetch()}
-			/>
-		);
-	if (!portfolio.data) return <AccountPageLoading />;
-	if (!portfolio.data.positions.length && !portfolio.data.cashBalances.length)
-		return <AccountPageEmpty account={account} />;
-	return <AccountPageLoaded account={account} portfolio={portfolio.data} />;
-}
-
-export function AccountPageLoading() {
-	const { t } = useTranslation();
+	const viewModel = useAccountPageViewModel();
+	if (viewModel.state === "loading") return <AccountPageLoading />;
+	if (viewModel.state === "error") return <AccountPageError {...viewModel} />;
+	if (viewModel.state === "empty")
+		return <AccountPageEmpty account={viewModel.account} />;
 	return (
-		<StateView
-			loading
-			title={t("states.loadingTitle")}
-			text={t("states.loadingText")}
+		<AccountPageLoaded
+			account={viewModel.account}
+			portfolio={viewModel.portfolio}
 		/>
 	);
 }
 
-export function AccountPageError({
-	code,
-	retry,
-}: {
-	code?: string;
-	retry: () => void;
-}) {
-	const { t } = useTranslation();
-	if (code === "NOT_FOUND")
-		return (
-			<StateView
-				error
-				title={t("portfolio.accountUnavailableTitle")}
-				text={t("portfolio.accountUnavailableText")}
-				action={
-					<Button component={Link} to="/accounts">
-						{t("portfolio.back")}
-					</Button>
-				}
-			/>
-		);
-	if (code === "TBANK_NOT_CONNECTED" || code === "INVALID_TBANK_TOKEN")
-		return (
-			<StateView
-				error
-				title={t("portfolio.connectionErrorTitle")}
-				text={t("portfolio.connectionErrorText")}
-				action={
-					<Button component={Link} to="/settings">
-						{t("accounts.openSettings")}
-					</Button>
-				}
-			/>
-		);
-	if (code === "TBANK_UNAVAILABLE")
-		return (
-			<StateView
-				error
-				title={t("accounts.unavailableTitle")}
-				text={t("accounts.unavailableText")}
-				action={<Button onClick={retry}>{t("accounts.retry")}</Button>}
-			/>
-		);
-	return (
-		<StateView
-			error
-			title={t("states.errorTitle")}
-			text={t("states.errorText")}
-			action={<Button onClick={retry}>{t("accounts.retry")}</Button>}
-		/>
-	);
-}
-
-export function AccountPageEmpty({ account }: { account?: BrokerageAccount }) {
-	const { t } = useTranslation();
-	return (
-		<Stack>
-			<AccountHeading account={account} />
-			<StateView
-				title={t("portfolio.emptyTitle")}
-				text={t("portfolio.emptyText")}
-			/>
-		</Stack>
-	);
-}
-
-export function AccountPageLoaded({
-	account,
-	portfolio,
-}: {
-	account?: BrokerageAccount;
-	portfolio: Portfolio;
-}) {
-	const { t } = useTranslation();
-	const stocks = portfolio.positions.filter(
-		(position) => position.type === "STOCK",
-	);
-	const bonds = portfolio.positions.filter(
-		(position) => position.type === "BOND",
-	);
-	const otherPositions = portfolio.positions.filter(
-		(position) => position.type !== "STOCK" && position.type !== "BOND",
-	);
-	return (
-		<Stack className={classes.page} gap="lg">
-			<AccountHeading account={account} />
-			{portfolio.isStale ? (
-				<Alert color="blue">{t("portfolio.staleWarning")}</Alert>
-			) : null}
-			<Text c="dimmed" size="sm">
-				{t("portfolio.updatedAt", {
-					date: formatSnapshotTime(portfolio.lastSuccessfulAt),
-				})}
-			</Text>
-			<SimpleGrid cols={{ base: 1, sm: 2, md: 3 }}>
-				{portfolio.totalsByCurrency.map((total) => (
-					<Paper className={classes.total} key={total.currency} withBorder>
-						<Text c="dimmed" size="xs">
-							{total.currency}
-						</Text>
-						<Text fw={800} size="xl">
-							{formatMoney(total)}
-						</Text>
-					</Paper>
-				))}
-			</SimpleGrid>
-			{stocks.length ? (
-				<PositionSection title={t("portfolio.stocks")} positions={stocks} />
-			) : null}
-			{bonds.length ? (
-				<PositionSection title={t("portfolio.bonds")} positions={bonds} />
-			) : null}
-			{otherPositions.length ? (
-				<PositionSection
-					title={t("portfolio.otherPositions")}
-					positions={otherPositions}
-				/>
-			) : null}
-			<Section title={t("portfolio.cashBalances")}>
-				{portfolio.cashBalances.map((balance) => (
-					<Paper className={classes.cash} key={balance.currency} withBorder>
-						<Text>{balance.currency}</Text>
-						<Text fw={700}>{formatMoney(balance)}</Text>
-					</Paper>
-				))}
-			</Section>
-		</Stack>
-	);
-}
-
-function PositionSection({
-	title,
-	positions,
-}: {
-	title: string;
-	positions: Portfolio["positions"];
-}) {
-	const { t } = useTranslation();
-	return (
-		<Section title={title}>
-			{positions.map((position) => (
-				<Card
-					className={classes.row}
-					key={`${position.figi}-${position.displayName}-${position.quantity}`}
-					withBorder
-				>
-					<Group justify="space-between" align="flex-start" wrap="nowrap">
-						<Stack gap={2}>
-							<Text fw={700}>{position.displayName}</Text>
-							<Text c="dimmed" size="sm">
-								{t("portfolio.quantity", { value: position.quantity })}
-							</Text>
-						</Stack>
-						<Stack gap={2} align="flex-end">
-							<Text fw={700}>{formatMoney(position.currentValue)}</Text>
-							<Text c="dimmed" size="sm">
-								{t("portfolio.return", {
-									value: formatMoney(position.absoluteReturn),
-								})}
-							</Text>
-						</Stack>
-					</Group>
-				</Card>
-			))}
-		</Section>
-	);
-}
-
-function AccountHeading({ account }: { account?: BrokerageAccount }) {
-	const { t } = useTranslation();
-	return (
-		<Stack gap={2}>
-			<Title order={1}>{account?.name ?? t("portfolio.title")}</Title>
-			{account ? (
-				<Text c="dimmed" size="sm">
-					{t(accountTypeKey(account.type))}
-				</Text>
-			) : null}
-		</Stack>
-	);
-}
-
-function Section({
-	title,
-	children,
-}: {
-	title: string;
-	children: React.ReactNode;
-}) {
-	return (
-		<Stack gap="sm">
-			<Title order={2}>{title}</Title>
-			{children}
-		</Stack>
-	);
-}
+export {
+	AccountPageEmpty,
+	AccountPageError,
+	AccountPageLoaded,
+	AccountPageLoading,
+} from "./AccountPage.view";

src/pages/account/ui/AccountPage.view.tsx

@@ -0,0 +1,217 @@
+import {
+	Alert,
+	Button,
+	Card,
+	Group,
+	Paper,
+	SimpleGrid,
+	Stack,
+	Text,
+	Title,
+} from "@mantine/core";
+import { useTranslation } from "react-i18next";
+import { Link } from "react-router";
+import type { BrokerageAccount } from "@/entities/brokerage-account";
+import { accountTypeKey } from "@/entities/brokerage-account";
+import type { Portfolio } from "@/entities/portfolio";
+import { formatMoney, formatSnapshotTime } from "@/entities/portfolio";
+import { StateView } from "@/shared/ui";
+import classes from "./AccountPage.module.css";
+
+export function AccountPageLoading() {
+	const { t } = useTranslation();
+	return (
+		<StateView
+			loading
+			title={t("states.loadingTitle")}
+			text={t("states.loadingText")}
+		/>
+	);
+}
+export function AccountPageError({
+	code,
+	retry,
+}: {
+	code?: string;
+	retry: () => void;
+}) {
+	const { t } = useTranslation();
+	if (code === "NOT_FOUND")
+		return (
+			<StateView
+				error
+				title={t("portfolio.accountUnavailableTitle")}
+				text={t("portfolio.accountUnavailableText")}
+				action={
+					<Button component={Link} to="/accounts">
+						{t("portfolio.back")}
+					</Button>
+				}
+			/>
+		);
+	if (code === "TBANK_NOT_CONNECTED" || code === "INVALID_TBANK_TOKEN")
+		return (
+			<StateView
+				error
+				title={t("portfolio.connectionErrorTitle")}
+				text={t("portfolio.connectionErrorText")}
+				action={
+					<Button component={Link} to="/settings">
+						{t("accounts.openSettings")}
+					</Button>
+				}
+			/>
+		);
+	if (code === "TBANK_UNAVAILABLE")
+		return (
+			<StateView
+				error
+				title={t("accounts.unavailableTitle")}
+				text={t("accounts.unavailableText")}
+				action={<Button onClick={retry}>{t("accounts.retry")}</Button>}
+			/>
+		);
+	return (
+		<StateView
+			error
+			title={t("states.errorTitle")}
+			text={t("states.errorText")}
+			action={<Button onClick={retry}>{t("accounts.retry")}</Button>}
+		/>
+	);
+}
+export function AccountPageEmpty({ account }: { account?: BrokerageAccount }) {
+	const { t } = useTranslation();
+	return (
+		<Stack>
+			<AccountHeading account={account} />
+			<StateView
+				title={t("portfolio.emptyTitle")}
+				text={t("portfolio.emptyText")}
+			/>
+		</Stack>
+	);
+}
+export function AccountPageLoaded({
+	account,
+	portfolio,
+}: {
+	account?: BrokerageAccount;
+	portfolio: Portfolio;
+}) {
+	const { t } = useTranslation();
+	const stocks = portfolio.positions.filter((p) => p.type === "STOCK");
+	const bonds = portfolio.positions.filter((p) => p.type === "BOND");
+	const other = portfolio.positions.filter(
+		(p) => p.type !== "STOCK" && p.type !== "BOND",
+	);
+	return (
+		<Stack className={classes.page} gap="lg">
+			<AccountHeading account={account} />
+			{portfolio.isStale ? (
+				<Alert color="blue">{t("portfolio.staleWarning")}</Alert>
+			) : null}
+			<Text c="dimmed" size="sm">
+				{t("portfolio.updatedAt", {
+					date: formatSnapshotTime(portfolio.lastSuccessfulAt),
+				})}
+			</Text>
+			<SimpleGrid cols={{ base: 1, sm: 2, md: 3 }}>
+				{portfolio.totalsByCurrency.map((total) => (
+					<Paper className={classes.total} key={total.currency} withBorder>
+						<Text c="dimmed" size="xs">
+							{total.currency}
+						</Text>
+						<Text fw={800} size="xl">
+							{formatMoney(total)}
+						</Text>
+					</Paper>
+				))}
+			</SimpleGrid>
+			{stocks.length ? (
+				<PositionSection title={t("portfolio.stocks")} positions={stocks} />
+			) : null}
+			{bonds.length ? (
+				<PositionSection title={t("portfolio.bonds")} positions={bonds} />
+			) : null}
+			{other.length ? (
+				<PositionSection
+					title={t("portfolio.otherPositions")}
+					positions={other}
+				/>
+			) : null}
+			<Section title={t("portfolio.cashBalances")}>
+				{portfolio.cashBalances.map((balance) => (
+					<Paper className={classes.cash} key={balance.currency} withBorder>
+						<Text>{balance.currency}</Text>
+						<Text fw={700}>{formatMoney(balance)}</Text>
+					</Paper>
+				))}
+			</Section>
+		</Stack>
+	);
+}
+function PositionSection({
+	title,
+	positions,
+}: {
+	title: string;
+	positions: Portfolio["positions"];
+}) {
+	const { t } = useTranslation();
+	return (
+		<Section title={title}>
+			{positions.map((position) => (
+				<Card
+					className={classes.row}
+					key={`${position.figi}-${position.displayName}-${position.quantity}`}
+					withBorder
+				>
+					<Group justify="space-between" align="flex-start" wrap="nowrap">
+						<Stack gap={2}>
+							<Text fw={700}>{position.displayName}</Text>
+							<Text c="dimmed" size="sm">
+								{t("portfolio.quantity", { value: position.quantity })}
+							</Text>
+						</Stack>
+						<Stack gap={2} align="flex-end">
+							<Text fw={700}>{formatMoney(position.currentValue)}</Text>
+							<Text c="dimmed" size="sm">
+								{t("portfolio.return", {
+									value: formatMoney(position.absoluteReturn),
+								})}
+							</Text>
+						</Stack>
+					</Group>
+				</Card>
+			))}
+		</Section>
+	);
+}
+function AccountHeading({ account }: { account?: BrokerageAccount }) {
+	const { t } = useTranslation();
+	return (
+		<Stack gap={2}>
+			<Title order={1}>{account?.name ?? t("portfolio.title")}</Title>
+			{account ? (
+				<Text c="dimmed" size="sm">
+					{t(accountTypeKey(account.type))}
+				</Text>
+			) : null}
+		</Stack>
+	);
+}
+function Section({
+	title,
+	children,
+}: {
+	title: string;
+	children: React.ReactNode;
+}) {
+	return (
+		<Stack gap="sm">
+			<Title order={2}>{title}</Title>
+			{children}
+		</Stack>
+	);
+}

src/pages/account/ui/AccountPage.vm.ts

@@ -0,0 +1,27 @@
+import { useQueryClient } from "@tanstack/react-query";
+import { useParams } from "react-router";
+import type { BrokerageAccount } from "@/entities/brokerage-account";
+import { portfolioErrorCode, usePortfolio } from "@/entities/portfolio";
+import { useAuth } from "@/features/auth";
+
+const accountsQueryKey = ["brokerage-accounts"] as const;
+
+export function useAccountPageViewModel() {
+	const { accountId } = useParams();
+	const { accessToken } = useAuth();
+	const portfolio = usePortfolio(accountId, accessToken);
+	const account = useQueryClient()
+		.getQueryData<BrokerageAccount[]>(accountsQueryKey)
+		?.find((item) => item.id === accountId);
+	if (portfolio.isError)
+		return {
+			state: "error" as const,
+			code: portfolioErrorCode(portfolio.error),
+			retry: () => portfolio.refetch(),
+		};
+	if (portfolio.isFetching || !portfolio.data)
+		return { state: "loading" as const };
+	if (!portfolio.data.positions.length && !portfolio.data.cashBalances.length)
+		return { state: "empty" as const, account };
+	return { state: "loaded" as const, account, portfolio: portfolio.data };
+}

src/pages/accounts/ui/AccountsPage.tsx

@@ -1,103 +1,21 @@
-import { Button, Stack, Title } from "@mantine/core";
-import { useTranslation } from "react-i18next";
-import { Link } from "react-router";
 import {
-	BrokerageAccountList,
-	errorCode,
-	useBrokerageAccounts,
-} from "@/entities/brokerage-account";
-import { useAuth } from "@/features/auth";
-import { StateView } from "@/shared/ui";
+	AccountsPageEmpty,
+	AccountsPageError,
+	AccountsPageLoaded,
+	AccountsPageLoading,
+} from "./AccountsPage.view";
+import { useAccountsPageViewModel } from "./AccountsPage.vm";
 
 export function AccountsPage() {
-	const { t } = useTranslation();
-	const { accessToken } = useAuth();
-	const accounts = useBrokerageAccounts(accessToken);
-	const code = errorCode(accounts.error);
-	if (accounts.isFetching) return <AccountsPageLoading />;
-	if (accounts.isError)
-		return <AccountsPageError code={code} retry={() => accounts.refetch()} />;
-	if (!accounts.data?.length) return <AccountsPageEmpty />;
-	return (
-		<Stack>
-			<Title order={1}>{t("accounts.title")}</Title>
-			<BrokerageAccountList accounts={accounts.data} />
-		</Stack>
-	);
+	const viewModel = useAccountsPageViewModel();
+	if (viewModel.state === "loading") return <AccountsPageLoading />;
+	if (viewModel.state === "error") return <AccountsPageError {...viewModel} />;
+	if (viewModel.state === "empty") return <AccountsPageEmpty />;
+	return <AccountsPageLoaded accounts={viewModel.accounts} />;
 }
 
-export function AccountsPageLoading() {
-	const { t } = useTranslation();
-	return (
-		<StateView
-			loading
-			title={t("states.loadingTitle")}
-			text={t("states.loadingText")}
-		/>
-	);
-}
-
-export function AccountsPageError({
-	code,
-	retry,
-}: {
-	code?: string;
-	retry?: () => void;
-}) {
-	const { t } = useTranslation();
-	const settingsAction = (
-		<Button component={Link} to="/settings" variant="light">
-			{t("accounts.openSettings")}
-		</Button>
-	);
-	if (code === "TBANK_NOT_CONNECTED")
-		return (
-			<StateView
-				error
-				title={t("accounts.notConnectedTitle")}
-				text={t("accounts.notConnectedText")}
-				action={settingsAction}
-			/>
-		);
-	if (code === "INVALID_TBANK_TOKEN")
-		return (
-			<StateView
-				error
-				title={t("accounts.invalidTokenTitle")}
-				text={t("accounts.invalidTokenText")}
-				action={settingsAction}
-			/>
-		);
-	if (code === "TBANK_UNAVAILABLE")
-		return (
-			<StateView
-				error
-				title={t("accounts.unavailableTitle")}
-				text={t("accounts.unavailableText")}
-				action={
-					<Stack align="flex-start">
-						<Button onClick={retry}>{t("accounts.retry")}</Button>
-						{settingsAction}
-					</Stack>
-				}
-			/>
-		);
-	return (
-		<StateView
-			error
-			title={t("states.errorTitle")}
-			text={t("states.errorText")}
-			action={<Button onClick={retry}>{t("accounts.retry")}</Button>}
-		/>
-	);
-}
-
-export function AccountsPageEmpty() {
-	const { t } = useTranslation();
-	return (
-		<StateView
-			title={t("accounts.emptyTitle")}
-			text={t("accounts.emptyText")}
-		/>
-	);
-}
+export {
+	AccountsPageEmpty,
+	AccountsPageError,
+	AccountsPageLoading,
+} from "./AccountsPage.view";

src/pages/accounts/ui/AccountsPage.view.tsx

@@ -0,0 +1,96 @@
+import { Button, Stack, Title } from "@mantine/core";
+import { useTranslation } from "react-i18next";
+import { Link } from "react-router";
+import type { BrokerageAccount } from "@/entities/brokerage-account";
+import { BrokerageAccountList } from "@/entities/brokerage-account";
+import { StateView } from "@/shared/ui";
+
+export function AccountsPageLoading() {
+	const { t } = useTranslation();
+	return (
+		<StateView
+			loading
+			title={t("states.loadingTitle")}
+			text={t("states.loadingText")}
+		/>
+	);
+}
+
+export function AccountsPageError({
+	code,
+	retry,
+}: {
+	code?: string;
+	retry?: () => void;
+}) {
+	const { t } = useTranslation();
+	const settingsAction = (
+		<Button component={Link} to="/settings" variant="light">
+			{t("accounts.openSettings")}
+		</Button>
+	);
+	if (code === "TBANK_NOT_CONNECTED")
+		return (
+			<StateView
+				error
+				title={t("accounts.notConnectedTitle")}
+				text={t("accounts.notConnectedText")}
+				action={settingsAction}
+			/>
+		);
+	if (code === "INVALID_TBANK_TOKEN")
+		return (
+			<StateView
+				error
+				title={t("accounts.invalidTokenTitle")}
+				text={t("accounts.invalidTokenText")}
+				action={settingsAction}
+			/>
+		);
+	if (code === "TBANK_UNAVAILABLE")
+		return (
+			<StateView
+				error
+				title={t("accounts.unavailableTitle")}
+				text={t("accounts.unavailableText")}
+				action={
+					<Stack align="flex-start">
+						<Button onClick={retry}>{t("accounts.retry")}</Button>
+						{settingsAction}
+					</Stack>
+				}
+			/>
+		);
+	return (
+		<StateView
+			error
+			title={t("states.errorTitle")}
+			text={t("states.errorText")}
+			action={<Button onClick={retry}>{t("accounts.retry")}</Button>}
+		/>
+	);
+}
+
+export function AccountsPageEmpty() {
+	const { t } = useTranslation();
+	return (
+		<StateView
+			title={t("accounts.emptyTitle")}
+			text={t("accounts.emptyText")}
+		/>
+	);
+}
+
+export function AccountsPageLoaded({
+	accounts,
+}: {
+	accounts: BrokerageAccount[];
+}) {
+	const { t } = useTranslation();
+	return (
+		<Stack>
+			<Title order={1}>{t("accounts.title")}</Title>
+			<BrokerageAccountList accounts={accounts} />
+		</Stack>
+	);
+}

src/pages/accounts/ui/AccountsPage.vm.ts

@@ -0,0 +1,16 @@
+import { errorCode, useBrokerageAccounts } from "@/entities/brokerage-account";
+import { useAuth } from "@/features/auth";
+
+export function useAccountsPageViewModel() {
+	const { accessToken } = useAuth();
+	const accounts = useBrokerageAccounts(accessToken);
+	if (accounts.isFetching) return { state: "loading" as const };
+	if (accounts.isError)
+		return {
+			state: "error" as const,
+			code: errorCode(accounts.error),
+			retry: () => accounts.refetch(),
+		};
+	if (!accounts.data?.length) return { state: "empty" as const };
+	return { state: "loaded" as const, accounts: accounts.data };
+}

src/pages/not-found/ui/NotFoundPage.tsx

@@ -8,22 +8,15 @@ export function NotFoundPage() {
 	return (
 		<Stack>
 			<Title order={1}>{t("notFound.title")}</Title>
-			<NotFoundPageEmpty />
+			<StateView
+				title={t("states.emptyTitle")}
+				text={t("states.emptyText")}
+				action={
+					<Button component={Link} to="/accounts">
+						{t("notFound.action")}
+					</Button>
+				}
+			/>
 		</Stack>
 	);
 }
-
-function NotFoundPageEmpty() {
-	const { t } = useTranslation();
-	return (
-		<StateView
-			title={t("states.emptyTitle")}
-			text={t("states.emptyText")}
-			action={
-				<Button component={Link} to="/accounts">
-					{t("notFound.action")}
-				</Button>
-			}
-		/>
-	);
-}

src/shared/i18n/locales/ru.ts

@@ -84,6 +84,11 @@ export const ru = {
 			retry: "Повторить",
 		},
 		notFound: { title: "Страница не найдена", action: "К счетам" },
+		routeError: {
+			title: "Не удалось открыть страницу",
+			text: "Перейдите в безопасный раздел и попробуйте снова.",
+			action: "Продолжить",
+		},
 		states: {
 			loadingTitle: "Загрузка",
 			loadingText: "Пожалуйста, подождите.",