import { describe, it, expect, beforeEach } from "vitest";
import {
  createUnsubscribeToken,
  verifyUnsubscribeToken,
} from "@/src/modules/marketing/lib/unsubscribe-token";

beforeEach(() => {
  process.env.MARKETING_TOKEN_SECRET = "test-secret";
});

describe("Abmelde-Token", () => {
  it("liefert Kunde und Studio zurück", () => {
    const token = createUnsubscribeToken("user-1", "biz-1");
    expect(verifyUnsubscribeToken(token)).toEqual({ userId: "user-1", businessId: "biz-1" });
  });

  it("lehnt veränderte Tokens ab", () => {
    const token = createUnsubscribeToken("user-1", "biz-1");
    const forged = token.replace("user-1", "user-2");
    expect(verifyUnsubscribeToken(forged)).toBeNull();
    expect(verifyUnsubscribeToken("kaputt")).toBeNull();
    expect(verifyUnsubscribeToken(null)).toBeNull();
  });

  it("lehnt Tokens mit anderem Secret ab", () => {
    const token = createUnsubscribeToken("user-1", "biz-1");
    process.env.MARKETING_TOKEN_SECRET = "anderes-secret";
    expect(verifyUnsubscribeToken(token)).toBeNull();
  });
});