import { screen } from "@testing-library/react";
import { beforeEach, describe, expect, it, vi } from "vitest";
import LandingPage from "@/app/page";
import { renderWithQueryClient } from "./test-utils";

function mockFetchImplementation(isLocalhost: boolean) {
  return vi.fn().mockImplementation((url: string) => {
    const path = url.replace("http://localhost:8000", "");
    if (path.startsWith("/api/v1/system/status")) {
      return Promise.resolve({
        ok: true,
        status: 200,
        json: async () => ({
          app_env: "development",
          auth_mode: "local",
          llm_provider: "mock",
          search_provider: "mock",
          sms_enabled: false,
          sms_provider: "twilio",
          ninjapear_configured: false,
          ninjapear_credit_balance: null,
          ninjapear_estimated_credits_per_company: null,
          is_localhost: isLocalhost,
          components: [],
        }),
      });
    }
    return Promise.resolve({ ok: false, status: 404, json: async () => ({ detail: "not found" }) });
  });
}

describe("LandingPage", () => {
  beforeEach(() => {
    vi.stubGlobal("fetch", mockFetchImplementation(true));
  });

  it("renders the value proposition and primary calls to action", async () => {
    renderWithQueryClient(<LandingPage />);

    expect(
      screen.getByRole("heading", { name: /know what your competitors are doing/i }),
    ).toBeInTheDocument();
    expect(
      await screen.findByRole("link", { name: /open dashboard \(local mode\)/i }),
    ).toHaveAttribute("href", "/dashboard");
    expect(screen.getByRole("link", { name: /sign in/i })).toHaveAttribute("href", "/login");
    expect(screen.getByRole("link", { name: /create account/i })).toHaveAttribute(
      "href",
      "/register",
    );
  });

  it("discloses the public-information-only collection policy", () => {
    renderWithQueryClient(<LandingPage />);
    expect(
      screen.getByRole("heading", { name: /only publicly available information/i }),
    ).toBeInTheDocument();
  });

  it("drops the local-mode wording when the request isn't from localhost", async () => {
    vi.stubGlobal("fetch", mockFetchImplementation(false));
    renderWithQueryClient(<LandingPage />);

    expect(await screen.findByRole("link", { name: /^open dashboard$/i })).toHaveAttribute(
      "href",
      "/dashboard",
    );
    expect(screen.queryByText(/local mode/i)).not.toBeInTheDocument();
  });

  it("hides the Git Repository link when no NEXT_PUBLIC_GIT_REPO_URL is configured", () => {
    renderWithQueryClient(<LandingPage />);
    expect(screen.queryByRole("link", { name: /git repository/i })).not.toBeInTheDocument();
  });

  it("shows a Git Repository link opening in a new tab when configured", () => {
    vi.stubEnv("NEXT_PUBLIC_GIT_REPO_URL", "https://git.ciagent.org/admin/ci-agent");
    renderWithQueryClient(<LandingPage />);

    const link = screen.getByRole("link", { name: /git repository/i });
    expect(link).toHaveAttribute("href", "https://git.ciagent.org/admin/ci-agent");
    expect(link).toHaveAttribute("target", "_blank");
    expect(link).toHaveAttribute("rel", "noopener noreferrer");
  });
});