import { afterEach, describe, expect, it } from "vitest";
import { isOidcConfigured } from "@/lib/auth/oidc";

describe("isOidcConfigured", () => {
  const keys = [
    "AUTH_OIDC_ISSUER",
    "AUTH_OIDC_CLIENT_ID",
    "AUTH_OIDC_CLIENT_SECRET",
  ] as const;
  const previous: Record<string, string | undefined> = {};

  afterEach(() => {
    for (const key of keys) {
      if (previous[key] === undefined) delete process.env[key];
      else process.env[key] = previous[key];
    }
  });

  function save() {
    for (const key of keys) previous[key] = process.env[key];
  }

  it("is false when any var is missing", () => {
    save();
    delete process.env.AUTH_OIDC_ISSUER;
    delete process.env.AUTH_OIDC_CLIENT_ID;
    delete process.env.AUTH_OIDC_CLIENT_SECRET;
    expect(isOidcConfigured()).toBe(false);

    process.env.AUTH_OIDC_ISSUER = "https://sso.example.com/";
    process.env.AUTH_OIDC_CLIENT_ID = "id";
    expect(isOidcConfigured()).toBe(false);
  });

  it("is true when all three are set", () => {
    save();
    process.env.AUTH_OIDC_ISSUER = "https://sso.example.com/";
    process.env.AUTH_OIDC_CLIENT_ID = "id";
    process.env.AUTH_OIDC_CLIENT_SECRET = "secret";
    expect(isOidcConfigured()).toBe(true);
  });
});