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

const mocks = vi.hoisted(() => ({ tag: vi.fn(), guide: vi.fn(), summary: vi.fn() }));
vi.mock("server-only", () => ({}));
vi.mock("next/cache", () => ({ cacheTag: mocks.tag, cacheLife: vi.fn() }));
vi.mock("@/lib/guides/queries", () => ({
  getPublicGuide: mocks.guide, getPublicGuideSummary: mocks.summary, listPublicGuideCards: vi.fn(),
}));
import { getCachedPublicGuide, getCachedPublicGuideSummary } from "./public";

beforeEach(() => vi.resetAllMocks());

describe("public cache dependency boundaries", () => {
  it.each([getCachedPublicGuide, getCachedPublicGuideSummary])("keeps existing guides independent of directory invalidations", async (read) => {
    mocks.guide.mockResolvedValue({ id: "first" });
    mocks.summary.mockResolvedValue({ id: "first" });
    await read("first");
    expect(mocks.tag).toHaveBeenCalledWith("buzz:page:first");
    expect(mocks.tag).toHaveBeenCalledWith("buzz:catalog");
    expect(mocks.tag).not.toHaveBeenCalledWith("buzz:directory");
  });

  it.each([getCachedPublicGuide, getCachedPublicGuideSummary])("refreshes missing guides when the directory changes", async (read) => {
    mocks.guide.mockResolvedValue(null);
    mocks.summary.mockResolvedValue(null);
    expect(await read("missing")).toBeNull();
    expect(mocks.tag).toHaveBeenCalledWith("buzz:directory");
  });
});