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

import { MantineProvider } from "@mantine/core";
import { type QueryClient, QueryClientProvider } from "@tanstack/react-query";
import { fireEvent, render, screen, waitFor } from "@testing-library/react";
import { HttpResponse, http } from "msw";
import { describe, expect, it, vi } from "vitest";
import { apiQueryClient, configureAuthClient } from "@/shared/api";
import { createTestQueryClient } from "@/test/query";
import { server } from "@/test/server";
import { TbankConnectionSection } from "./TbankConnectionSection";

const brokerageAccountsQueryKey = apiQueryClient.queryOptions(
	"get",
	"/api/v1/brokerage-accounts",
).queryKey;
const portfolioQueryKey = apiQueryClient.queryOptions(
	"get",
	"/api/v1/brokerage-accounts/{accountId}/portfolio",
	{ params: { path: { accountId: "account-1" } } },
).queryKey;
const operationsQueryKey = apiQueryClient.queryOptions(
	"get",
	"/api/v1/brokerage-accounts/{accountId}/operations",
	{ params: { path: { accountId: "account-1" } } },
).queryKey;
const unrelatedQueryKey = apiQueryClient.queryOptions(
	"get",
	"/api/v1/auth/me",
).queryKey;

function renderSection(client: QueryClient) {
	configureAuthClient({
		accessToken: () => "test-token",
		refresh: async () => true,
		clear: vi.fn(),
	});
	return render(
		<MantineProvider>
			<QueryClientProvider client={client}>
				<TbankConnectionSection />
			</QueryClientProvider>
		</MantineProvider>,
	);
}

function seededClient() {
	const client = createTestQueryClient();
	client.setQueryData(brokerageAccountsQueryKey, [
		{
			id: "account-1",
			name: "Основной счет",
			type: "BROKERAGE",
			openedOn: null,
		},
	]);
	client.setQueryData(portfolioQueryKey, { source: "previous-connection" });
	client.setQueryData(unrelatedQueryKey, { id: "user-1" });
	return client;
}

describe("TbankConnectionSection", () => {
	it("commits connection status and resets the complete brokerage query subtree after connecting", async () => {
		const client = seededClient();
		renderSection(client);

		await screen.findByText("Не подключено");
		fireEvent.change(screen.getByLabelText("Token T-Bank"), {
			target: { value: "replacement-token" },
		});
		fireEvent.click(screen.getByRole("button", { name: "Подключить" }));

		await waitFor(() =>
			expect(
				screen.getByRole("button", { name: "Заменить token" }),
			).toBeInTheDocument(),
		);
		expect(client.getQueryData(brokerageAccountsQueryKey)).toBeUndefined();
		expect(client.getQueryData(portfolioQueryKey)).toBeUndefined();
		expect(client.getQueryData(unrelatedQueryKey)).toEqual({ id: "user-1" });
	});

	it("creates the same financial boundary when an existing connection is replaced", async () => {
		server.use(
			http.get("*/api/v1/tbank-connection", () =>
				HttpResponse.json({
					connected: true,
					connectedAt: "2026-08-13T00:00:00Z",
				}),
			),
		);
		const client = seededClient();
		renderSection(client);

		await screen.findByRole("button", { name: "Заменить token" });
		fireEvent.change(screen.getByLabelText("Token T-Bank"), {
			target: { value: "replacement-token" },
		});
		fireEvent.click(screen.getByRole("button", { name: "Заменить token" }));

		await waitFor(() =>
			expect(client.getQueryData(portfolioQueryKey)).toBeUndefined(),
		);
		expect(client.getQueryData(brokerageAccountsQueryKey)).toBeUndefined();
	});

	it("commits disconnected status and resets financial queries after deleting", async () => {
		server.use(
			http.get("*/api/v1/tbank-connection", () =>
				HttpResponse.json({
					connected: true,
					connectedAt: "2026-08-14T00:00:00Z",
				}),
			),
		);
		const client = seededClient();
		renderSection(client);

		fireEvent.click(
			await screen.findByRole("button", { name: "Удалить подключение" }),
		);
		fireEvent.click(await screen.findByRole("button", { name: /^Удалить$/ }));

		await waitFor(() =>
			expect(
				screen.getByRole("button", { name: "Подключить" }),
			).toBeInTheDocument(),
		);
		expect(client.getQueryData(brokerageAccountsQueryKey)).toBeUndefined();
		expect(client.getQueryData(portfolioQueryKey)).toBeUndefined();
		expect(client.getQueryData(unrelatedQueryKey)).toEqual({ id: "user-1" });
	});

	it("cancels an in-flight previous-boundary query and ignores its late response", async () => {
		const client = seededClient();
		let finishPrevious: ((value: { source: string }) => void) | undefined;
		let aborted = false;
		const previousResponse = new Promise<{ source: string }>((resolve) => {
			finishPrevious = resolve;
		});
		const previousRequest = client
			.fetchQuery({
				queryKey: operationsQueryKey,
				queryFn: ({ signal }) => {
					signal.addEventListener("abort", () => {
						aborted = true;
					});
					return previousResponse;
				},
			})
			.catch(() => undefined);
		renderSection(client);

		await screen.findByText("Не подключено");
		fireEvent.change(screen.getByLabelText("Token T-Bank"), {
			target: { value: "replacement-token" },
		});
		fireEvent.click(screen.getByRole("button", { name: "Подключить" }));

		await waitFor(() => expect(aborted).toBe(true));
		await previousRequest;
		finishPrevious?.({ source: "previous-connection" });
		await Promise.resolve();
		expect(client.getQueryData(operationsQueryKey)).toBeUndefined();
	});

	it("preserves status and financial cache when a connection update fails", async () => {
		server.use(
			http.put("*/api/v1/tbank-connection", () =>
				HttpResponse.json({ code: "TBANK_UNAVAILABLE" }, { status: 503 }),
			),
		);
		const client = seededClient();
		renderSection(client);

		await screen.findByText("Не подключено");
		fireEvent.change(screen.getByLabelText("Token T-Bank"), {
			target: { value: "replacement-token" },
		});
		fireEvent.click(screen.getByRole("button", { name: "Подключить" }));

		await screen.findByText(
			"T-Bank временно недоступен. Повторите попытку позже.",
		);
		expect(
			screen.getByRole("button", { name: "Подключить" }),
		).toBeInTheDocument();
		expect(client.getQueryData(brokerageAccountsQueryKey)).toBeDefined();
		expect(client.getQueryData(portfolioQueryKey)).toEqual({
			source: "previous-connection",
		});
	});

	it("preserves connected status and financial cache when deletion fails", async () => {
		server.use(
			http.get("*/api/v1/tbank-connection", () =>
				HttpResponse.json({
					connected: true,
					connectedAt: "2026-08-14T00:00:00Z",
				}),
			),
			http.delete("*/api/v1/tbank-connection", () =>
				HttpResponse.json({ code: "TBANK_UNAVAILABLE" }, { status: 503 }),
			),
		);
		const client = seededClient();
		renderSection(client);

		fireEvent.click(
			await screen.findByRole("button", { name: "Удалить подключение" }),
		);
		fireEvent.click(await screen.findByRole("button", { name: /^Удалить$/ }));

		await screen.findByText("Не удалось выполнить запрос. Попробуйте ещё раз.");
		expect(
			screen.getByRole("button", { name: "Заменить token" }),
		).toBeInTheDocument();
		expect(client.getQueryData(brokerageAccountsQueryKey)).toBeDefined();
		expect(client.getQueryData(portfolioQueryKey)).toEqual({
			source: "previous-connection",
		});
	});
});