import { act, render, screen, waitFor, within } from "@testing-library/react";
import { setLocale } from "../i18n";
import userEvent from "@testing-library/user-event";
import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
import { http, HttpResponse } from "msw";
import { server } from "../test/msw";
import { PiManagement } from "./PiManagement";

const readyStatus = {
  version: "0.80.3",
  ready: true,
  credentials: "present",
  config: { provider: "zai", model: "glm-5.2", reasoning: "medium" },
  checkedAt: "2026-08-05T10:00:00.000Z",
};

test("updates Pi controls and host instructions when the locale changes without remounting", async () => {
  renderManagement(true);
  await screen.findByRole("button", { name: "Test catalog default" });
  try {
    act(() => setLocale("it"));
    expect(screen.getByRole("button", { name: "Verifica il modello predefinito del catalogo" })).toBeVisible();
    await userEvent.click(screen.getByRole("button", { name: "Manutenzione host" }));
    expect(screen.getByRole("heading", { name: "Apri la directory del progetto" })).toBeVisible();
    act(() => setLocale("en"));
    expect(screen.getByRole("heading", { name: "Open the project root" })).toBeVisible();
    expect(screen.getByRole("button", { name: "Runtime and models" })).toBeVisible();
  } finally { act(() => setLocale("en")); }
});

function renderManagement(page = false) {
  const client = new QueryClient({ defaultOptions: { queries: { retry: false } } });
  return render(
    <QueryClientProvider client={client}>
      <PiManagement open page={page} onClose={() => undefined} />
    </QueryClientProvider>,
  );
}

beforeEach(() => {
  server.use(
    http.get("/api/pi-management/status", () => HttpResponse.json(readyStatus)),
    http.get("/api/models", () => HttpResponse.json({ models: [] })),
  );
});

test("shows the catalog default as read-only installation state", async () => {
  renderManagement();

  expect(screen.getByText("Loading Pi management…")).toBeVisible();
  expect(await screen.findByRole("heading", { name: "Pi management" })).toBeVisible();
  const dialog = screen.getByRole("dialog", { name: "Pi management" });
  expect(dialog).toHaveAttribute("aria-modal", "false");
  expect(dialog).toHaveAttribute("data-work-area-panel");
  expect(dialog).toHaveAttribute("data-width", "expanded");
  expect(await screen.findByText("Pi 0.80.3")).toBeVisible();
  expect(screen.getByTestId("pi-readiness-rail")).toHaveTextContent("Runtime ready");
  expect(screen.getByRole("status", { name: "Pi readiness" })).toHaveTextContent("Ready");
  expect(screen.getByText("Defaults ready")).toBeVisible();
  const catalog = screen.getByRole("region", { name: "Installation catalog default" });
  expect(catalog).toHaveTextContent("zai");
  expect(catalog).toHaveTextContent("glm-5.2");
  expect(catalog).toHaveTextContent("medium");
  expect(screen.getByRole("button", { name: "Test catalog default" })).toBeVisible();
  expect(screen.queryByRole("button", { name: /save defaults/i })).not.toBeInTheDocument();
  expect(screen.queryByRole("combobox", { name: /provider|model|reasoning/i })).not.toBeInTheDocument();
  expect(document.querySelector('input[type="password"]')).toBeNull();
});

test.each(["linux", "macos", "windows"])("opens host instructions for the installation platform %s", async hostPlatform => {
  server.use(http.get("/api/pi-management/status", () => HttpResponse.json({ ...readyStatus, hostPlatform })));
  renderManagement(true);
  await screen.findByText("Pi 0.80.3");
  await userEvent.click(screen.getByRole("button", { name: "Host maintenance" }));
  const label = hostPlatform === "macos" ? "macOS" : hostPlatform === "windows" ? "Windows" : "Linux";
  expect(screen.getByRole("tab", { name: label })).toHaveAttribute("aria-selected", "true");
  expect(screen.getByRole("tabpanel", { name: label })).toBeVisible();
  await userEvent.click(screen.getByRole("tab", { name: "Windows" }));
  await userEvent.click(screen.getByRole("button", { name: "Runtime and models" }));
  await userEvent.click(screen.getByRole("button", { name: "Host maintenance" }));
  expect(screen.getByRole("tabpanel", { name: "Windows" })).toBeVisible();
});

test("shows every session model exposed by Core", async () => {
  server.use(http.get("/api/models", () => HttpResponse.json({ models: [
    { provider: "zai", id: "glm-5.3", name: "GLM 5.3", reasoning: true },
    { provider: "deepseek", id: "deepseek-v4-pro", name: "DeepSeek V4 Pro", reasoning: true },
    { provider: "deepseek", id: "deepseek-v4-flash", name: "DeepSeek V4 Flash", reasoning: true },
    { provider: "local-qwen", id: "qwen3.6-35b-a3b", name: "Local Qwen 3.6 35B A3B", reasoning: false },
  ] })));
  renderManagement();

  const catalog = await screen.findByRole("region", { name: "Available models" });
  expect(catalog).toHaveTextContent("GLM 5.3");
  expect(catalog).toHaveTextContent("DeepSeek V4 Pro");
  expect(catalog).toHaveTextContent("DeepSeek V4 Flash");
  expect(catalog).toHaveTextContent("Local Qwen 3.6 35B A3B");
});

test("tests the catalog default without mutating credential presence", async () => {
  const user = userEvent.setup();
  let tests = 0;
  server.use(http.post("/api/pi-management/test", () => {
    tests += 1;
    return HttpResponse.json(tests === 1
      ? { ready: true, checkedAt: "2026-08-05T10:02:00.000Z" }
      : { ready: false, message: "Pi provider smoke check failed", checkedAt: "2026-08-05T10:03:00.000Z" });
  }));
  renderManagement();

  const testButton = await screen.findByRole("button", { name: "Test catalog default" });
  await user.click(testButton);
  expect(await screen.findByText("Catalog default test passed.")).toBeVisible();
  expect(screen.getByText("Credentials present")).toBeVisible();
  await user.click(testButton);
  expect(await screen.findByText(/Catalog default test failed/)).toBeVisible();
  expect(screen.getByText("Credentials present")).toBeVisible();
});

test("fetches bounded sanitized diagnostics only on request", async () => {
  const user = userEvent.setup();
  let logRequests = 0;
  server.use(http.get("/api/pi-management/logs", () => {
    logRequests += 1;
    return HttpResponse.json({
      lines: ["Pi smoke check succeeded", "provider token=[REDACTED]"],
      checkedAt: "2026-08-05T10:04:00.000Z",
    });
  }));
  renderManagement();

  await screen.findByText("Pi 0.80.3");
  expect(logRequests).toBe(0);
  await user.click(screen.getByRole("button", { name: "Show sanitized logs" }));
  expect(await screen.findByLabelText("Sanitized Pi diagnostics")).toHaveTextContent("provider token=[REDACTED]");
  expect(logRequests).toBe(1);
});

test("explains forbidden management access without offering controls", async () => {
  server.use(http.get("/api/pi-management/status", () =>
    HttpResponse.json(
      { code: "pi_management_forbidden", error: "Pi management is not permitted" },
      { status: 403 },
    )));
  renderManagement();

  expect(await screen.findByRole("alert", { name: "Pi management unavailable" }))
    .toHaveTextContent("Pi management is not permitted");
  expect(screen.queryByRole("button", { name: "Test catalog default" })).not.toBeInTheDocument();
});

test("shows the single-source host workflow in accessible platform tabs", async () => {
  const user = userEvent.setup();
  renderManagement();

  const tablist = await screen.findByRole("tablist", { name: "Pi host platform" });
  const [linuxTab, macosTab, windowsTab] = within(tablist).getAllByRole("tab");
  expect([linuxTab, macosTab, windowsTab].map((tab) => tab.textContent)).toEqual(["Linux", "macOS", "Windows"]);
  expect(screen.getByTestId("pi-platform-instructions-scroll")).toHaveClass("overflow-y-scroll");

  linuxTab.focus();
  await user.keyboard("{ArrowRight}");
  expect(macosTab).toHaveFocus();
  await user.keyboard("{End}");
  expect(windowsTab).toHaveFocus();
  await user.click(linuxTab);

  const linux = screen.getByRole("tabpanel", { name: "Linux" });
  expect(within(linux).getAllByRole("listitem")).toHaveLength(7);
  expect(within(linux).getAllByRole("heading", { level: 4 }).map((heading) => heading.textContent)).toEqual([
    "Open the project root",
    "Edit the Installation Model Catalog",
    "Choose eligibility and defaults",
    "Complete the provider setup",
    "Reload Pi configuration",
    "Update the Pi version",
    "Diagnose and recover a failed operation",
  ]);
  for (const expected of [
    "deploy/<installation-id>/thothii-installation.yaml",
    "modelCatalog.defaults.interaction",
    "provider/model",
    "generated projections",
    "tht pi restart --yes --drain",
    "tht pi doctor",
    "Invalid YAML",
  ]) expect(linux).toHaveTextContent(expected);
  for (const retired of ["deploy/pi/models.json", "deploy/pi/settings.json", "tht pi configure", "enabledModels"])
    expect(linux).not.toHaveTextContent(retired);

  await user.click(macosTab);
  expect(screen.getByRole("tabpanel", { name: "macOS" }))
    .toHaveTextContent("deploy/<installation-id>/thothii-installation.yaml");
  await user.click(windowsTab);
  expect(screen.getByRole("tabpanel", { name: "Windows" }))
    .toHaveTextContent("deploy\\<installation-id>\\thothii-installation.yaml");
});

test("reloads the catalog-derived default when reopened", async () => {
  let statusCalls = 0;
  server.use(http.get("/api/pi-management/status", () => {
    statusCalls += 1;
    return HttpResponse.json(statusCalls === 1
      ? readyStatus
      : { ...readyStatus, config: { provider: "deepseek", model: "deepseek-v4", reasoning: "high" } });
  }));
  const client = new QueryClient({ defaultOptions: { queries: { retry: false } } });
  const view = render(
    <QueryClientProvider client={client}><PiManagement open onClose={() => undefined} /></QueryClientProvider>,
  );

  expect(await screen.findByText("glm-5.2")).toBeVisible();
  view.rerender(
    <QueryClientProvider client={client}><PiManagement open={false} onClose={() => undefined} /></QueryClientProvider>,
  );
  await waitFor(() => expect(screen.queryByRole("dialog", { name: "Pi management" })).not.toBeInTheDocument());
  view.rerender(
    <QueryClientProvider client={client}><PiManagement open onClose={() => undefined} /></QueryClientProvider>,
  );
  expect(await screen.findByText("deepseek-v4")).toBeVisible();
});

test("shows an explicit incomplete state when the catalog default is unavailable", async () => {
  server.use(http.get("/api/pi-management/status", () => HttpResponse.json({
    ...readyStatus,
    config: { reasoning: "medium" },
  })));
  renderManagement();

  const incomplete = await screen.findByRole("alert", { name: "Pi configuration incomplete" });
  expect(incomplete).toHaveTextContent("The catalog default is unavailable");
  expect(incomplete).toHaveTextContent("modelCatalog.defaults.interaction");
  expect(screen.getByRole("button", { name: "Test catalog default" })).toBeDisabled();
});

test.each(["present", "missing"] as const)(
  "shows credentials %s from status without inferring them from smoke",
  async (credentials) => {
    server.use(http.get("/api/pi-management/status", () => HttpResponse.json({
      ...readyStatus,
      credentials,
    })));
    renderManagement();
    expect(await screen.findByText(`Credentials ${credentials}`)).toBeVisible();
  },
);