import { describe, expect, it } from "vitest";

import {
	formatDate,
	formatMoney,
	formatPercentagePoints,
	formatSignedPercent,
	formatSnapshotDay,
	formatSnapshotTime,
	instrumentLogoUrl,
} from "./display";

describe("shared display helpers", () => {
	it("formats signed rates as percentages and percentage points without negative zero", () => {
		expect(formatSignedPercent("0.151")).toBe("+15,1 %");
		expect(formatSignedPercent("-0.15149")).toBe("−15,1 %");
		expect(formatSignedPercent("0")).toBe("0,0 %");
		expect(formatSignedPercent("-0.00049")).toBe("0,0 %");
		expect(formatPercentagePoints("0.043")).toBe("+4,3 п.п.");
		expect(formatPercentagePoints("-0.0435")).toBe("−4,4 п.п.");
	});
	it("uses padded Russian dates and preserves the UTC date of timestamps", () => {
		expect(formatDate("2027-09-10")).toBe("10.09.2027");
		expect(formatDate("2024-02-29")).toBe("29.02.2024");
		expect(formatDate("2027-09-10T00:30:00+03:00")).toBe("09.09.2027");
	});
	it("formats snapshot time in the browser time zone", () => {
		const instant = "2027-09-10T00:30:00+03:00";

		const expected = new Intl.DateTimeFormat("ru-RU", {
			dateStyle: "short",
			timeStyle: "short",
		}).format(new Date(instant));

		expect(formatSnapshotTime(instant)).toBe(expected);
		expect(formatSnapshotDay(instant)).toBe(
			new Intl.DateTimeFormat("ru-RU", { dateStyle: "short" })
				.format(new Date(instant)),
		);
	});
	it("formats decimal strings without financial arithmetic", () => {
		expect(formatMoney({ currency: "RUB", value: "-1234567.89" })).toBe(
			"-1 234 567,89 ₽",
		);
		expect(formatMoney({ currency: "RUB", value: "10" })).toBe("10 ₽");
		expect(formatMoney({ currency: "USD", value: "0.5" })).toBe("0,5 $");
		expect(formatMoney({ currency: "RUB", value: "0001234.50" })).toBe(
			"0 001 234,50 ₽",
		);
		expect(
			formatMoney({
				currency: "RUB",
				value: "123456789012345678901234567890.01",
			}),
		).toBe("123 456 789 012 345 678 901 234 567 890,01 ₽");
		expect(
			formatMoney({ currency: "RUB", value: "1.5" }, { withZeroCents: true }),
		).toBe("1,50 ₽");
		expect(formatMoney(null)).toBe("—");
		expect(formatMoney(
			{ currency: "RUB", value: "136900" },
			{ withSign: true },
		)).toBe("+136 900 ₽");
		expect(formatMoney(
			{ currency: "RUB", value: "-4200" },
			{ withSign: true },
		)).toBe("−4 200 ₽");
		expect(formatMoney(
			{ currency: "RUB", value: "-0.00" },
			{ withSign: true },
		)).toBe("0,00 ₽");
	});

	it("rounds to the currency's minor units and drops the sign of a rounded zero", () => {
		const rounded = { withRoundedCents: true };
		expect(formatMoney({ currency: "RUB", value: "-0.004" }, rounded)).toBe("0,00 ₽");
		expect(formatMoney({ currency: "RUB", value: "-0.005" }, rounded)).toBe("-0,01 ₽");
		expect(formatMoney({ currency: "RUB", value: "999.995" }, rounded)).toBe("1 000,00 ₽");
		expect(formatMoney({ currency: "JPY", value: "1500.5" }, rounded)).toBe("1 501 JPY");
		expect(formatMoney({ currency: "KWD", value: "1.2345" }, rounded)).toBe("1,235 KWD");
		expect(formatMoney({ currency: "ZZZ", value: "1.234" }, rounded)).toBe("1,23 ZZZ");
	});

	it("builds the brand logo url from an upstream file name", () => {
		expect(instrumentLogoUrl("sber3.png")).toBe(
			"https://invest-brands.cdn-tinkoff.ru/sber3x160.png",
		);
		expect(instrumentLogoUrl(" RU000A0JPNM1.png ")).toBe(
			"https://invest-brands.cdn-tinkoff.ru/RU000A0JPNM1x160.png",
		);
		expect(instrumentLogoUrl(null)).toBeNull();
		expect(instrumentLogoUrl("  ")).toBeNull();
	});
});