// Render tests for the shared upsell CTAs (#346). No jsdom needed:
// react-dom/server renders in vitest's node environment, and calling a
// component as a function (FilterPanel.test.tsx pattern) exposes its props.
import { describe, it, expect, vi, beforeEach } from "vitest";
import { isValidElement, type ReactElement, type ReactNode } from "react";
import { renderToStaticMarkup } from "react-dom/server";
import { MemoryRouter } from "react-router-dom";

const openUrl = vi.fn((_url: string) => Promise.resolve());
vi.mock("@tauri-apps/plugin-opener", () => ({ openUrl: (u: string) => openUrl(u) }));

const logError = vi.fn();
vi.mock("../../services/logService", async (importOriginal) => ({
  ...(await importOriginal<typeof import("../../services/logService")>()),
  logError: (...args: unknown[]) => logError(...args),
}));

let language = "fr";
vi.mock("react-i18next", () => ({
  useTranslation: () => ({
    t: (k: string, o?: Record<string, unknown>) =>
      o ? `${k}[${Object.entries(o).map(([a, b]) => `${a}=${String(b)}`).join(",")}]` : k,
    i18n: { language },
  }),
}));

// The locked screen and the Updates card read one thing from the license context:
// whether the stored key was revoked (#365).
let licenseRevoked = false;
vi.mock("../../contexts/LicenseContext", () => ({
  useLicenseContext: () => ({ revoked: licenseRevoked }),
}));

vi.mock("../../hooks/useUpdater", () => ({
  useUpdater: () => ({
    state: { status: "notEntitled", version: null, body: null, progress: 0, contentLength: null, error: null },
    checkForUpdate: vi.fn(),
    downloadAndInstall: vi.fn(),
    installAndRestart: vi.fn(),
  }),
}));

import UpsellGate from "./UpsellGate";
import PurchaseButton from "./PurchaseButton";
import DownloadLatestButton from "./DownloadLatestButton";
import HaveKeyButton from "./HaveKeyButton";
import UpdateCard from "../settings/UpdateCard";

function find(node: ReactNode, pred: (el: ReactElement) => boolean): ReactElement[] {
  if (Array.isArray(node)) return node.flatMap((n) => find(n, pred));
  if (!isValidElement(node)) return [];
  const el = node as ReactElement<{ children?: ReactNode }>;
  return [...(pred(el) ? [el] : []), ...find(el.props.children, pred)];
}

beforeEach(() => {
  openUrl.mockClear();
  logError.mockClear();
  language = "fr";
  licenseRevoked = false;
});

describe("UpsellGate with a revoked key (#365)", () => {
  const gate = () =>
    renderToStaticMarkup(
      <MemoryRouter>
        <UpsellGate feature="budget" requiredTier="base" />
      </MemoryRouter>,
    );

  it("says nothing about a revocation for a key that is not revoked", () => {
    expect(gate()).not.toContain("upsell.revoked");
  });

  it("names the revocation between the feature description and the CTAs", () => {
    licenseRevoked = true;
    const html = gate();
    const line = html.indexOf("upsell.revoked");
    expect(line).toBeGreaterThan(html.indexOf("upsell.features.budget"));
    expect(line).toBeLessThan(html.indexOf("upsell.ctaGet"));
    expect(html.split("upsell.revoked")).toHaveLength(2);
    // The way out stays: buying, or entering another key.
    expect(html).toContain("upsell.ctaGet[tier=license.editions.base]");
    expect(html).toContain("upsell.ctaHaveKey");
  });
});

describe("UpsellGate wiring", () => {
  it("Base screen: active Get Base, no note, no disabled button", () => {
    const html = renderToStaticMarkup(
      <MemoryRouter>
        <UpsellGate feature="budget" requiredTier="base" />
      </MemoryRouter>,
    );
    expect(html).toContain("upsell.ctaGet[tier=license.editions.base]");
    expect(html).not.toContain("disabled");
    expect(html).not.toContain("upsell.premiumNotForSale");
    expect(html).toContain("upsell.ctaHaveKey");
  });

  it("Premium screen: disabled button with the not-for-sale note", () => {
    const html = renderToStaticMarkup(
      <MemoryRouter>
        <UpsellGate feature="balance" requiredTier="premium" />
      </MemoryRouter>,
    );
    expect(html).toContain('disabled=""');
    expect(html).toContain("upsell.ctaGet[tier=license.editions.premium]");
    expect(html).toContain("upsell.premiumNotForSale");
  });

  it("outside any router (ProfileSelectionPage, ErrorPage): renders, without I already have a key", () => {
    const html = renderToStaticMarkup(<UpsellGate feature="multi-profile" requiredTier="base" />);
    expect(html).toContain("upsell.ctaGet");
    expect(html).not.toContain("upsell.ctaHaveKey");
  });

  it("forwards onNavigate to I already have a key only", () => {
    const onNavigate = vi.fn();
    const tree = UpsellGate({ feature: "budget", requiredTier: "base", onNavigate });
    const haveKey = find(tree, (el) => el.type === HaveKeyButton);
    expect(haveKey).toHaveLength(1);
    expect((haveKey[0].props as { onNavigate?: () => void }).onNavigate).toBe(onNavigate);
    const purchase = find(tree, (el) => el.type === PurchaseButton);
    expect(purchase).toHaveLength(1);
    expect(purchase[0].props).not.toHaveProperty("onNavigate");
  });
});

// Both buttons open the product page. A failure to open the browser must reach
// the in-app logs, not vanish as an unhandled rejection.
function productPageButtonTests(Button: (props: { className?: string }) => ReactNode) {
  it("opens the product page in the app language", () => {
    language = "en";
    const button = Button({}) as ReactElement<{ onClick: () => void }>;
    button.props.onClick();
    expect(openUrl).toHaveBeenCalledWith("https://lacompagniemaximus.com/en/produits/simpl-resultat");
  });

  it("logs a failure to open the browser", async () => {
    const failure = new Error("no browser");
    openUrl.mockRejectedValueOnce(failure);
    const button = Button({}) as ReactElement<{ onClick: () => void }>;
    button.props.onClick();
    await vi.waitFor(() => expect(logError).toHaveBeenCalledWith(expect.any(String), failure));
  });
}

describe("PurchaseButton", () => productPageButtonTests(PurchaseButton));

describe("DownloadLatestButton", () => productPageButtonTests(DownloadLatestButton));

describe("UpdateCard in the free edition", () => {
  it("offers Get Base, I already have a key and Download the latest version", () => {
    const html = renderToStaticMarkup(
      <MemoryRouter>
        <UpdateCard />
      </MemoryRouter>,
    );
    expect(html).toContain("settings.updates.notEntitled");
    expect(html).toContain("upsell.ctaGet[tier=license.editions.base]");
    expect(html).toContain("upsell.ctaHaveKey");
    expect(html).toContain("settings.updates.downloadLatest");
    expect(html).not.toContain("upsell.revoked");
  });

  it("names a revoked key between the message and the CTAs (#365)", () => {
    licenseRevoked = true;
    const html = renderToStaticMarkup(
      <MemoryRouter>
        <UpdateCard />
      </MemoryRouter>,
    );
    const line = html.indexOf("upsell.revoked");
    expect(line).toBeGreaterThan(html.indexOf("settings.updates.notEntitled"));
    expect(line).toBeLessThan(html.indexOf("upsell.ctaGet"));
    expect(html.split("upsell.revoked")).toHaveLength(2);
  });
});