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

import { SettingsStore } from "../app/settings/SettingsStore.js";

function createStorage() {
    const data = new Map();
    return {
        get length() {
            return data.size;
        },
        key(i) {
            return Array.from(data.keys())[i] ?? null;
        },
        getItem(k) {
            return data.has(k) ? data.get(k) : null;
        },
        setItem(k, v) {
            data.set(String(k), String(v));
        },
        removeItem(k) {
            data.delete(String(k));
        },
    };
}

describe("SettingsStore (Vitest)", () => {
    it("reads and writes settings through localStorage wrapper", () => {
        globalThis.window = {
            localStorage: createStorage(),
            addEventListener() {},
        };

        expect(SettingsStore.get("missing")).toBe(null);
        expect(SettingsStore.set("k", "v")).toBe(true);
        expect(SettingsStore.get("k")).toBe("v");
        expect(SettingsStore.getAll()).toEqual({ k: "v" });
    });
});