import { afterEach, describe, expect, it, vi } from "vitest";
import * as provider from "@/lib/storage/providers/server-http.js";

afterEach(() => vi.unstubAllGlobals());

describe("server HTTP investigation provider", () => {
  it("maps save, load, list, and restart to authenticated investigation API paths", async () => {
    const fetch = vi.fn()
      .mockResolvedValueOnce({ ok: true, json: async () => ({ snapshot: { id: "inv/a" } }) })
      .mockResolvedValueOnce({ ok: true, json: async () => ({ snapshot: { id: "inv/a" } }) })
      .mockResolvedValueOnce({ ok: true, json: async () => ({ investigations: [] }) })
      .mockResolvedValueOnce({ ok: true, json: async () => ({ snapshot: { id: "inv/a" } }) });
    vi.stubGlobal("fetch", fetch);

    await expect(provider.saveInvestigation({ id: "inv/a" }, "inv/a")).resolves.toEqual({ id: "inv/a" });
    await expect(provider.loadInvestigation("inv/a")).resolves.toEqual({ id: "inv/a" });
    await expect(provider.listInvestigations()).resolves.toEqual([]);
    await expect(provider.restartInvestigation("inv/a")).resolves.toEqual({ id: "inv/a" });

    expect(fetch).toHaveBeenNthCalledWith(1, "/api/investigations", expect.objectContaining({
      method: "POST",
      body: JSON.stringify({ id: "inv/a", snapshot: { id: "inv/a" } }),
    }));
    expect(fetch).toHaveBeenNthCalledWith(2, "/api/investigations/inv%2Fa");
    expect(fetch).toHaveBeenNthCalledWith(3, "/api/investigations", undefined);
    expect(fetch).toHaveBeenNthCalledWith(4, "/api/investigations/inv%2Fa/restart", { method: "POST" });
  });

  it("returns null for a missing investigation (HTTP 404) rather than throwing", async () => {
    vi.stubGlobal("fetch", vi.fn().mockResolvedValue({ ok: false, status: 404, json: async () => ({ error: "Investigation not found" }) }));
    await expect(provider.loadInvestigation("inv/missing")).resolves.toBeNull();
  });

  it("surfaces API failures rather than returning an empty result", async () => {
    vi.stubGlobal("fetch", vi.fn().mockResolvedValue({ ok: false, status: 500, json: async () => ({ error: "Unauthorized" }) }));
    await expect(provider.listInvestigations()).rejects.toThrow("Unauthorized");
  });
});