import { afterEach, describe, expect, it, vi } from "vitest";
import { getLoginUrl } from "./const";

describe("getLoginUrl", () => {
  afterEach(() => {
    vi.unstubAllEnvs();
  });

  it("falls back to the in-app login route when oauth portal is unset", () => {
    vi.stubEnv("VITE_OAUTH_PORTAL_URL", "");

    expect(getLoginUrl()).toBe("/login");
  });

  it("builds the external oauth login url when portal is configured", () => {
    vi.stubEnv("VITE_OAUTH_PORTAL_URL", "https://oauth.example.com");
    vi.stubEnv("VITE_APP_ID", "tennis-training-hub");

    const url = new URL(getLoginUrl());

    expect(url.origin).toBe("https://oauth.example.com");
    expect(url.pathname).toBe("/app-auth");
    expect(url.searchParams.get("appId")).toBe("tennis-training-hub");
    expect(url.searchParams.get("redirectUri")).toBe(
      `${window.location.origin}/api/oauth/callback`
    );
    expect(url.searchParams.get("type")).toBe("signIn");
  });
});