/*
Copyright 2026 Lotus Guild

SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
Please see LICENSE in the repository root for full details.
*/

import { afterEach, describe, expect, test, vi } from "vitest";

vi.mock("../widget", () => ({ widget: null }));

import { lotusFlag, lotusParam, lotusSendToHost } from "./lotusWidget";
import { LotusWidgetActions } from "./lotusActions";

/**
 * Point `window.location` at a URL for the duration of one assertion. Uses a
 * path relative to the current origin — `pushState` throws a `SecurityError`
 * on a cross-origin URL, and jsdom's default test origin doesn't match a
 * hard-coded `http://localhost/`.
 */
function setLocation(path: string): void {
  window.history.pushState({}, "", path);
}

describe("lotusParam / lotusFlag", () => {
  afterEach(() => {
    setLocation("/");
  });

  test("reads a param from the query string", () => {
    setLocation("/?lotusTheme=1");
    expect(lotusParam("lotusTheme")).toBe("1");
  });

  test("reads a param from the hash fragment's query portion", () => {
    setLocation("/#/room?lotusTransparent=1");
    expect(lotusParam("lotusTransparent")).toBe("1");
  });

  test("the hash fragment wins over the query string for the same key", () => {
    setLocation("/?lotusTheme=fromQuery#/room?lotusTheme=fromHash");
    expect(lotusParam("lotusTheme")).toBe("fromHash");
  });

  test("falls back to the query string for keys absent from the hash", () => {
    setLocation("/?onlyInQuery=1#/room?lotusTheme=1");
    expect(lotusParam("onlyInQuery")).toBe("1");
  });

  test("returns null when the param is present nowhere", () => {
    setLocation("/#/room");
    expect(lotusParam("missing")).toBeNull();
  });

  test.each([
    ["1", true],
    ["true", true],
    ["0", false],
    ["false", false],
    [null, false],
  ])("lotusFlag treats %s as %s", (value, expected) => {
    setLocation(value === null ? "/" : `/?f=${value}`);
    expect(lotusFlag("f")).toBe(expected);
  });

  // [lotus #33] lotusParam must re-derive from window.location on every call
  // rather than caching the first read, so a later navigation (e.g. lobby ->
  // in-call) that rewrites the URL is picked up.
  test("re-reads window.location on every call instead of caching the first result", () => {
    setLocation("/?lotusTheme=1");
    expect(lotusParam("lotusTheme")).toBe("1");

    setLocation("/?lotusTheme=0");
    expect(lotusParam("lotusTheme")).toBe("0");

    setLocation("/");
    expect(lotusParam("lotusTheme")).toBeNull();
  });
});

describe("lotusSendToHost", () => {
  test("returns false when no widget transport is available", () => {
    expect(lotusSendToHost(LotusWidgetActions.CallState, {})).toBe(false);
  });
});