// frontend/src/shell/NewSessionDialog.test.tsx
import { render, screen, waitFor } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { http, HttpResponse } from "msw";
import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
import { server } from "../test/msw";
import { NewSessionDialog } from "./NewSessionDialog";

function renderDialog() {
  const onCreated = vi.fn();
  const client = new QueryClient({ defaultOptions: { queries: { retry: false } } });
  render(
    <QueryClientProvider client={client}>
      <NewSessionDialog onCreated={onCreated} />
    </QueryClientProvider>,
  );
  return { onCreated };
}

test("the form has only a question field (no workspace/model/provider/thinking)", async () => {
  renderDialog();
  await userEvent.click(screen.getByRole("button", { name: /new/i }));
  expect(await screen.findByLabelText(/question/i)).toBeInTheDocument();
  expect(screen.queryByLabelText(/workspace/i)).not.toBeInTheDocument();
  expect(screen.queryByLabelText(/model/i)).not.toBeInTheDocument();
  expect(screen.queryByLabelText(/provider/i)).not.toBeInTheDocument();
  expect(screen.queryByLabelText(/thinking/i)).not.toBeInTheDocument();
});

test("submitting posts only { question } and calls onCreated", async () => {
  let body: unknown = null;
  server.use(
    http.post("http://localhost:8787/sessions", async ({ request }) => {
      body = await request.json();
      return HttpResponse.json({ id: "s1" });
    }),
  );
  const { onCreated } = renderDialog();
  await userEvent.click(screen.getByRole("button", { name: /new/i }));
  await userEvent.type(await screen.findByLabelText(/question/i), "Quante vendite nel 2025?");
  await userEvent.click(screen.getByRole("button", { name: /^create$/i }));

  await waitFor(() => expect(body).toEqual({ question: "Quante vendite nel 2025?" }));
  await waitFor(() => expect(onCreated).toHaveBeenCalledWith("s1"));
});

test("empty question shows a validation error and does not submit", async () => {
  renderDialog();
  await userEvent.click(screen.getByRole("button", { name: /new/i }));
  await userEvent.click(screen.getByRole("button", { name: /^create$/i }));
  expect(await screen.findByRole("alert")).toHaveTextContent(/empty/i);
});