import { beforeEach, describe, expect, it } from "vitest";
import {
	buildWsUrl,
	clearSettings,
	getSettings,
	saveSettings,
} from "./settings";

describe("settings", () => {
	beforeEach(() => {
		localStorage.clear();
	});

	it("getSettings returns null when absent", () => {
		expect(getSettings()).toBeNull();
	});

	it("saveSettings then getSettings round-trips", () => {
		saveSettings({ serverUrl: "http://x:8686", token: "t1" });
		expect(getSettings()).toEqual({ serverUrl: "http://x:8686", token: "t1" });
	});

	it("clearSettings removes stored settings", () => {
		saveSettings({ serverUrl: "http://x", token: "t" });
		clearSettings();
		expect(getSettings()).toBeNull();
	});

	it("rejects corrupt JSON", () => {
		localStorage.setItem("lvmh.settings", "{not json");
		expect(getSettings()).toBeNull();
	});

	it("rejects wrong shapes", () => {
		localStorage.setItem(
			"lvmh.settings",
			JSON.stringify({ serverUrl: 1, token: "x" }),
		);
		expect(getSettings()).toBeNull();
		localStorage.setItem("lvmh.settings", JSON.stringify("nope"));
		expect(getSettings()).toBeNull();
		localStorage.setItem(
			"lvmh.settings",
			JSON.stringify({ serverUrl: "http://x" }),
		);
		expect(getSettings()).toBeNull();
	});

	it("buildWsUrl converts scheme and appends encoded token", () => {
		expect(buildWsUrl({ serverUrl: "http://a:1", token: "tok" })).toBe(
			"ws://a:1/ws?token=tok",
		);
		expect(buildWsUrl({ serverUrl: "https://a:1/", token: "tok" })).toBe(
			"wss://a:1/ws?token=tok",
		);
		expect(buildWsUrl({ serverUrl: "http://a:1//", token: "a b/c" })).toBe(
			"ws://a:1/ws?token=a%20b%2Fc",
		);
	});
});