// @vitest-environment happy-dom
import { afterEach, describe, expect, it, vi } from "vitest";
import { act, cleanup, fireEvent, render, waitFor } from "@testing-library/react";
import Inbox from "./Inbox";
import * as inboxApi from "@/lib/inbox-api";
import * as downloadModule from "@/lib/download";

// The Inbox page now gates the Resubmit/Dismiss BulkBars behind
// <RoleGate allow={["admin", "user"]}>. Tests need an "admin"
// principal so the bulk bar still renders — otherwise the
// SP8 resubmit-with-download assertion below has nothing to click.
vi.mock("@/auth/useAuth", () => ({
  useAuth: () => ({
    user: { id: 1, username: "test-admin", role: "admin" },
    status: "authenticated",
  }),
}));

afterEach(() => {
  cleanup();
  vi.unstubAllGlobals();
  vi.restoreAllMocks();
});

describe("Inbox page", () => {
  it("renders the four lane headers", async () => {
    vi.stubGlobal(
      "fetch",
      vi.fn().mockResolvedValue({
        ok: true,
        json: async () => ({
          rejected: [],
          candidates: [],
          unmatched: [],
          done_today: [],
        }),
      }),
    );
    const { container } = render(<Inbox />);
    await waitFor(() => {
      expect(container.textContent).toContain("REJECTED");
      expect(container.textContent).toContain("CANDIDATES");
      expect(container.textContent).toContain("UNMATCHED");
      expect(container.textContent).toContain("DONE");
    });
  });

  it("SP8: multi-select resubmit opens bundle modal; Resubmit + Download triggers api + downloadBlob", async () => {
    // Two rejected claims → user selects both → Re-submit → modal appears
    // → user clicks Resubmit + Download → backend is hit with
    // ?download=true and the returned blob is handed to downloadBlob.
    const fetchMock = vi.fn().mockImplementation(async (url: string) => {
      if (url.includes("/api/inbox/lanes")) {
        return {
          ok: true,
          json: async () => ({
            rejected: [
              { id: "C1", kind: "claim", payer_claim_control_number: "C1",
                charge_amount: 100, payer_id: "P1", provider_npi: "N1",
                state: "rejected", rejection_reason: "old", service_date: null,
                score: null },
              { id: "C2", kind: "claim", payer_claim_control_number: "C2",
                charge_amount: 200, payer_id: "P1", provider_npi: "N1",
                state: "rejected", rejection_reason: "old", service_date: null,
                score: null },
            ],
            candidates: [],
            unmatched: [],
            done_today: [],
          }),
        };
      }
      if (url.includes("/api/inbox/rejected/resubmit")) {
        return {
          ok: true,
          blob: async () => new Blob(["PK\u0003\u0004fake-zip-bytes"], { type: "application/zip" }),
          headers: {
            get: (name: string) =>
              name.toLowerCase() === "content-disposition"
                ? 'attachment; filename="resubmit-2-claims.zip"'
                : name.toLowerCase() === "x-cyclone-serialize-errors"
                  ? null
                  : null,
          },
        };
      }
      return { ok: true, json: async () => ({}) };
    });
    vi.stubGlobal("fetch", fetchMock);

    // Spy on the two side-effects we care about: the api call + the
    // browser download. Both are module-scope so we install spies and
    // reset between tests (afterEach already calls vi.restoreAllMocks
    // but we mockReset to clear call history from other tests).
    const resubmitDownloadSpy = vi
      .spyOn(inboxApi, "resubmitRejectedWithDownload")
      .mockResolvedValue({
        blob: new Blob(["PK\u0003\u0004fake-zip-bytes"], { type: "application/zip" }),
        filename: "resubmit-2-claims.zip",
        serializeErrors: [],
      });
    const downloadSpy = vi
      .spyOn(downloadModule, "downloadBlob")
      .mockImplementation(() => {});

    const { container, getByText } = render(<Inbox />);
    await waitFor(() => {
      expect(container.textContent).toContain("C1");
      expect(container.textContent).toContain("C2");
    });

    // Select both rejected rows (the checkbox is the only <input> per row).
    const checkboxes = container.querySelectorAll('input[type="checkbox"]');
    expect(checkboxes.length).toBeGreaterThanOrEqual(2);
    await act(async () => {
      fireEvent.click(checkboxes[0]);
      fireEvent.click(checkboxes[1]);
    });

    // BulkBar shows a Re-submit button for the rejected lane.
    const resubmitBtn = getByText(/Re-submit \(2\)/);
    await act(async () => {
      fireEvent.click(resubmitBtn);
    });

    // Modal appears with both options.
    const modal = container.querySelector(
      '[data-testid="resubmit-bundle-modal"]',
    );
    expect(modal).not.toBeNull();

    const downloadBtn = container.querySelector(
      '[data-testid="resubmit-modal-download"]',
    ) as HTMLButtonElement | null;
    expect(downloadBtn).not.toBeNull();
    await act(async () => {
      fireEvent.click(downloadBtn!);
    });

    // The api was called with the selected ids, and the blob was
    // handed to downloadBlob with the right filename.
    expect(resubmitDownloadSpy).toHaveBeenCalledTimes(1);
    expect(resubmitDownloadSpy).toHaveBeenCalledWith(["C1", "C2"]);
    expect(downloadSpy).toHaveBeenCalledTimes(1);
    const [filename, blob] = downloadSpy.mock.calls[0];
    expect(filename).toBe("resubmit-2-claims.zip");
    expect(blob).toBeInstanceOf(Blob);
  });
});