import { MantineProvider } from "@mantine/core";
import { render, screen, within } from "@testing-library/react";
import { MemoryRouter } from "react-router";
import { describe, expect, it } from "vitest";

import type { Portfolio } from "@/entities/portfolio";

import { toAccountPagePositionSections } from "./AccountPage.vm";
import { PositionSection } from "./components/PositionSection.view";

const position: Portfolio["positions"][number]
	= {
		absoluteReturn: { currency: "RUB", value: "25" },
		account: { id: "a", name: "Основной" },
		averagePurchasePrice: { currency: "RUB", value: "280" },
		currentValue: { currency: "RUB", value: "375" },
		displayName: "Сбербанк",
		figi: "FIGI-SBER",
		isin: "RU0009029540",
		logoName: null,
		quantity: "1.25",
		ticker: "SBER",
		type: "STOCK",
	};

const second
	= {
		...position,
		absoluteReturn: null,
		account: { id: "b", name: "ИИС" },
		averagePurchasePrice: null,
		currentValue: null,
		quantity: "-2",
	};

function sections(positions: Portfolio["positions"]) {
	return toAccountPagePositionSections({
		cashBalances: [],
		isStale: false,
		lastSuccessfulAt: "2026-09-09T12:00:00Z",
		positions,
		structure: { currencies: [], unvaluedCategories: [] },
		totalsByCurrency: [],
	});
}

describe("Positions grouped by security", () => {
	it("shows one security with exact per-account quantities and valuations", () => {
		const section = sections([position, second])[0];
		render(
			<MantineProvider>
				<MemoryRouter>
					<PositionSection section={section} />
				</MemoryRouter>
			</MantineProvider>,
		);
		expect(screen.getAllByText("Сбербанк")).toHaveLength(1);

		const rows = within(
			screen.getByRole("list", { name: "Позиции по счетам" }),
		).getAllByRole("listitem");

		expect(rows).toHaveLength(2);
		expect(
			within(rows[0]).getByRole("link", { name: "Основной" }),
		).toHaveAttribute("href", "/accounts/a");
		expect(within(rows[0]).getByText("Количество: 1.25")).toBeInTheDocument();
		expect(within(rows[0]).getByText("375 ₽")).toBeInTheDocument();
		expect(
			within(rows[0]).getByText("Средняя цена: 280 ₽"),
		).toBeInTheDocument();
		expect(within(rows[1]).getByRole("link", { name: "ИИС" })).toHaveAttribute(
			"href",
			"/accounts/b",
		);
		expect(within(rows[1]).getByText("Количество: -2")).toBeInTheDocument();
		expect(rows[1]).not.toHaveTextContent("₽");
	});

	it("uses ISIN only when FIGI is absent, never merging by name or ticker", () => {
		expect(

			sections([
				{
					...position,
					figi: null,
				},
				{ ...second, figi: null },
			])[0].groups,
		).toHaveLength(1);
		expect(
			sections([position, { ...second, figi: "OTHER-FIGI" }])[0].groups,
		).toHaveLength(2);
		expect(

			sections([
				{
					...position,
					figi: null,
					isin: null,
				},
				{
					...second,
					figi: null,
					isin: null,
				},
			])[0].groups,
		).toHaveLength(2);
	});

	it("preserves one-account cards and does not merge repeated rows on the same account", () => {
		expect(
			sections([position, { ...second, account: position.account }])[0].groups,
		).toHaveLength(2);
		expect(
			sections([
				{ ...position, account: undefined },
				{ ...second, account: undefined },
			])[0].groups,
		).toHaveLength(2);
	});

	it("keeps currencies and purchase prices attached to their source positions", () => {
		const source = [
			position,
			{
				...second,
				averagePurchasePrice: { currency: "USD", value: "0.99" },
				currentValue: { currency: "USD", value: "1.01" },
			},
		];

		const before = structuredClone(source);
		const [group] = sections(source)[0].groups;
		expect(
			group.positions.map(item => [
				item.quantity,
				item.currentValue,
				item.averagePurchasePrice,
			]),
		).toEqual(
			source.map(item => [
				item.quantity,
				item.currentValue,
				item.averagePurchasePrice,
			]),
		);
		expect(source).toEqual(before);
	});
});