// @vitest-environment jsdom
//
// The zip export is the one api method that reads a RAW response instead of a parsed answer, so it
// carries contract of its own: the bytes, and the name the server picked. The composer's DOM test
// mocks this method wholesale, so without this the blob and the filename parse ship untested — and
// a broken header regex would silently save every report under the fallback name.
import { describe, it, expect, vi, beforeEach } from "vitest";

vi.mock("../errorDialog", () => ({ reportError: vi.fn() }));
vi.mock("../notifications", () => ({
  notify: vi.fn(() => 1),
  remove: vi.fn(),
  getActiveToasts: vi.fn((): { id: number }[] => []),
}));
vi.mock("../../i18n", () => ({ default: { t: (k: string) => k, language: "en" } }));

import { debugSessionsApi } from "./diagnostics";

const zip = (disposition?: string) =>
  new Response("PK", {
    status: 200,
    headers: {
      "content-type": "application/zip",
      ...(disposition ? { "content-disposition": disposition } : {}),
    },
  });

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

describe("debugExport", () => {
  it("hands back the bytes and the name the server chose", async () => {
    vi.spyOn(globalThis, "fetch").mockResolvedValue(
      zip('attachment; filename="siftlode-debug-20260919-1402-abc123.zip"'),
    );

    const out = await debugSessionsApi.debugExport("0123456789abcdef");

    expect(out.name).toBe("siftlode-debug-20260919-1402-abc123.zip");
    // The body is read as bytes, not parsed: `r.json()` on a zip would throw on its first one.
    // Brand, not `toBeInstanceOf(Blob)` — that asks which realm built the body: under jsdom the
    // ambient `Blob` is jsdom's class, while `Response.blob()` returns node's own on Node 22 and
    // jsdom's on Node 24, so the instance check passed locally and failed on the server gate.
    expect(Object.prototype.toString.call(out.blob)).toBe("[object Blob]");
    expect(out.blob.size).toBe(4);
  });

  it("names the file itself when the answer does not", async () => {
    // A proxy that strips the header must not leave the browser saving something called "export".
    vi.spyOn(globalThis, "fetch").mockResolvedValue(zip());

    const out = await debugSessionsApi.debugExport("0123456789abcdef");

    expect(out.name).toBe("siftlode-debug-0123456789abcdef.zip");
  });
});