import { fireEvent, screen, waitFor, within } from "@testing-library/react";
import { describe, expect, it } from "vitest";
import { adminBase } from "../../test/admin";
import { renderApp } from "../../test/auth";
import { callsTo, mockFetch } from "../../test/fetchMock";

const SETTINGS = {
  values: { session_idle_minutes: 15, signin_account_limit: 5, signin_burst_threshold: 20 },
  defaults: { session_idle_minutes: 15, signin_account_limit: 5, signin_burst_threshold: 20 },
  bounds: { session_idle_minutes: [1, 60], signin_account_limit: [1, 15], signin_burst_threshold: [5, 200] },
  version: 2,
};

const ALERTS = [
  { at: "2026-10-21T09:00:00Z", kind: "lockout", user_id: "u-1", display_name: "Walt Welder", account: "weld.walt", ip: "10.0.0.9", detail: { minutes: 10 } },
  { at: "2026-10-21T08:00:00Z", kind: "admin_change", user_id: "u-0", display_name: "Ann Admin", account: "admin.ann", ip: "10.0.0.2", detail: { action: "admin.profile_updated" } },
];

const INTEGRITY = {
  run: { id: 9, started_at: "2026-10-21T04:00:00Z", finished_at: "2026-10-21T04:02:00Z", status: "ok", counts: { seals: 120, assets: 40 } },
  findings: [{ kind: "asset_hash", subject: "asset 77", detail: { expected: "ab", got: "cd" }, at: "2026-10-21T04:01:00Z" }],
};

function routes(extra: Parameters<typeof mockFetch>[0] = {}) {
  return {
    ...adminBase(),
    "GET /api/admin/security/settings": { body: SETTINGS },
    "/api/admin/security/alerts": { body: ALERTS },
    "/api/admin/security/integrity": { body: INTEGRITY },
    ...extra,
  };
}

async function openTab() {
  renderApp("/admin");
  fireEvent.click(await screen.findByRole("tab", { name: "Security" }));
  return screen.findByLabelText("Lock after idle, minutes");
}

describe("Admin Security tab", () => {
  it("shows each setting with its default and bounds, checks bounds, and saves only changes", async () => {
    const fetch = mockFetch(
      routes({
        "PUT /api/admin/security/settings": { body: { ...SETTINGS, values: { ...SETTINGS.values, signin_account_limit: 4 }, version: 3 } },
      }),
    );
    const idle = await openTab();
    expect(idle).toHaveValue(15);
    expect(idle).toHaveAccessibleDescription("Default 15. Allowed 1 to 60.");
    const limit = screen.getByLabelText("Wrong passwords per account before a cooldown");
    fireEvent.change(limit, { target: { value: "20" } });
    fireEvent.click(screen.getByRole("button", { name: "Save security settings" }));
    expect(await screen.findByRole("alert")).toHaveTextContent("from 1 to 15");
    expect(callsTo(fetch, "PUT", "/api/admin/security/settings")).toHaveLength(0);

    fireEvent.change(limit, { target: { value: "4" } });
    fireEvent.click(screen.getByRole("button", { name: "Save security settings" }));
    expect(await screen.findByText(/Security settings saved/)).toBeInTheDocument();
    expect(callsTo(fetch, "PUT", "/api/admin/security/settings")).toEqual([{ values: { signin_account_limit: 4 }, version: 2 }]);
  });

  it("reloads after a 409", async () => {
    const fetch = mockFetch(routes({ "PUT /api/admin/security/settings": { status: 409, body: { detail: "Changed", code: "version_conflict" } } }));
    await openTab();
    fireEvent.change(screen.getByLabelText("Lock after idle, minutes"), { target: { value: "20" } });
    fireEvent.click(screen.getByRole("button", { name: "Save security settings" }));
    await waitFor(() => expect(callsTo(fetch, "GET", "/api/admin/security/settings")).toHaveLength(2));
    expect(await screen.findByRole("alert")).toHaveTextContent("Someone else saved the settings first.");
  });

  it("lists alerts with kind filters and a period, and shows the integrity result", async () => {
    const fetch = mockFetch(routes());
    await openTab();
    const table = await screen.findByRole("table", { name: "Security alerts" });
    expect(within(table).getByText("Account cooldowns")).toBeInTheDocument();
    expect(within(table).getByText("Admin changes")).toBeInTheDocument();
    const kinds = screen.getByRole("group", { name: "Alert kinds" });
    fireEvent.click(within(kinds).getByRole("button", { name: /Admin changes/ }));
    expect(within(kinds).getByRole("button", { name: /Admin changes/ })).toHaveAttribute("aria-pressed", "false");
    expect(within(table).queryByText("Admin changes")).not.toBeInTheDocument();
    expect(within(table).getByText("Walt Welder")).toBeInTheDocument();

    fireEvent.change(screen.getByRole("combobox", { name: /Period/ }), { target: { value: "168" } });
    await waitFor(() => expect(fetch.mock.calls.some(([u]) => String(u) === "/api/admin/security/alerts?hours=168")).toBe(true));
    expect(fetch.mock.calls.some(([u]) => String(u) === "/api/admin/security/alerts?hours=24")).toBe(true);

    const findings = await screen.findByRole("table", { name: "Integrity findings" });
    expect(within(findings).getByText("asset 77")).toBeInTheDocument();
    expect(screen.getByText("1 finding")).toHaveClass("st-bad");
    expect(screen.getByText("seals: 120, assets: 40")).toBeInTheDocument();
  });

  it("says when the integrity check has not run", async () => {
    mockFetch(routes({ "/api/admin/security/integrity": { body: { run: null, findings: [] } } }));
    await openTab();
    expect(await screen.findByText(/has not run yet/)).toBeInTheDocument();
  });
});