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import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
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import { SESSION_MODES } from "@/client/lib/constants";
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let installManifestGate: typeof import("@/client/lib/install-gate").installManifestGate;
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let useAuthStore: typeof import("@/client/stores/auth-store").useAuthStore;
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beforeEach(async () => {
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  localStorage.clear();
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  document.head.querySelectorAll('link[rel="manifest"]').forEach((el) => el.remove());
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  vi.resetModules();
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  const authMod = await import("@/client/stores/auth-store");
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  useAuthStore = authMod.useAuthStore;
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  const gateMod = await import("@/client/lib/install-gate");
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  installManifestGate = gateMod.installManifestGate;
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});
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afterEach(() => {
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  document.head.querySelectorAll('link[rel="manifest"]').forEach((el) => el.remove());
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  localStorage.clear();
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  vi.restoreAllMocks();
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});
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function hasManifestLink(): boolean {
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  return document.head.querySelector('link[rel="manifest"]') !== null;
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}
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describe("installManifestGate", () => {
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  it("does not mount the manifest link for an anonymous session", () => {
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    useAuthStore.setState({ sessionMode: SESSION_MODES.ANONYMOUS, user: null });
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    installManifestGate();
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    expect(hasManifestLink()).toBe(false);
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  });
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  it("mounts the manifest link when the user has a local session at startup", () => {
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    useAuthStore.setState({
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      sessionMode: SESSION_MODES.AUTHENTICATED,
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      user: { id: "u1", email: "a@b", name: "A", avatar_url: null, created_at: "2024-01-01T00:00:00Z" },
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      accessToken: "tok",
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    });
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    installManifestGate();
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    expect(hasManifestLink()).toBe(true);
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  });
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  it("mounts the link on login and removes it on logout", () => {
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    useAuthStore.setState({ sessionMode: SESSION_MODES.ANONYMOUS, user: null });
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    installManifestGate();
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    expect(hasManifestLink()).toBe(false);
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    useAuthStore.setState({
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      sessionMode: SESSION_MODES.AUTHENTICATED,
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      user: { id: "u1", email: "a@b", name: "A", avatar_url: null, created_at: "2024-01-01T00:00:00Z" },
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      accessToken: "tok",
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    });
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    expect(hasManifestLink()).toBe(true);
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    useAuthStore.getState().clearAuth();
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    expect(hasManifestLink()).toBe(false);
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  });
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  it("keeps the link mounted through LOCAL_ONLY and EXPIRED transitions", () => {
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    useAuthStore.setState({
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      sessionMode: SESSION_MODES.AUTHENTICATED,
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      user: { id: "u1", email: "a@b", name: "A", avatar_url: null, created_at: "2024-01-01T00:00:00Z" },
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      accessToken: "tok",
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    });
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    installManifestGate();
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    expect(hasManifestLink()).toBe(true);
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    useAuthStore.getState().markLocalOnly();
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    expect(hasManifestLink()).toBe(true);
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    useAuthStore.getState().markExpired();
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    expect(hasManifestLink()).toBe(true);
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  });
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  it("is idempotent when called twice", () => {
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    useAuthStore.setState({
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      sessionMode: SESSION_MODES.AUTHENTICATED,
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      user: { id: "u1", email: "a@b", name: "A", avatar_url: null, created_at: "2024-01-01T00:00:00Z" },
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      accessToken: "tok",
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    });
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    installManifestGate();
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    installManifestGate();
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    expect(document.head.querySelectorAll('link[rel="manifest"]').length).toBe(1);
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  });
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});