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

const publishMock = vi.fn();
vi.mock("@toolctrl/feature-flags", () => ({
  publishFeatureFlagInvalidationOnce: (...args: unknown[]) => publishMock(...args),
}));

import { broadcastFlagInvalidation } from "./invalidate.js";

describe("broadcastFlagInvalidation", () => {
  const originalEnv = { ...process.env };

  beforeEach(() => {
    publishMock.mockReset();
    publishMock.mockResolvedValue(undefined);
  });

  afterEach(() => {
    process.env = { ...originalEnv };
  });

  it("forwards the flag name and defaults the sharedStoreNamespace to 'web'", async () => {
    delete process.env.FEATURE_FLAGS_PUBLISH_NAMESPACE;
    await broadcastFlagInvalidation("billing.beta");

    expect(publishMock).toHaveBeenCalledTimes(1);
    expect(publishMock).toHaveBeenCalledWith({
      flagName: "billing.beta",
      sharedStoreNamespace: "web",
    });
  });

  it("uses FEATURE_FLAGS_PUBLISH_NAMESPACE when set", async () => {
    process.env.FEATURE_FLAGS_PUBLISH_NAMESPACE = "platform";
    await broadcastFlagInvalidation("billing.beta");

    expect(publishMock).toHaveBeenCalledWith({
      flagName: "billing.beta",
      sharedStoreNamespace: "platform",
    });
  });

  it("falls back to 'web' when FEATURE_FLAGS_PUBLISH_NAMESPACE is blank", async () => {
    process.env.FEATURE_FLAGS_PUBLISH_NAMESPACE = "   ";
    await broadcastFlagInvalidation("billing.beta");

    expect(publishMock).toHaveBeenCalledWith({
      flagName: "billing.beta",
      sharedStoreNamespace: "web",
    });
  });

  it("swallows publisher errors so the calling command still exits cleanly", async () => {
    publishMock.mockRejectedValueOnce(new Error("redis down"));
    await expect(broadcastFlagInvalidation("billing.beta")).resolves.toBeUndefined();
    expect(publishMock).toHaveBeenCalledTimes(1);
  });
});