import { screen, waitFor, within } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { afterEach, describe, expect, it, vi } from "vitest";
import { ApiError } from "../src/api/client";
import { fakeApi, renderApp, samplePlayerState, unauthorized } from "./render";

const CODE = "ABCDE-FGHJK-MNPQR-STUVW";
const owner = () => samplePlayerState({ tutorial: null });
const restored = () =>
  samplePlayerState({
    tutorial: null,
    company: { id: "c2", name: "Restored Freight", credits: 77_000, loanBalance: 0 },
  });

async function openRestore() {
  await userEvent.click(await screen.findByRole("button", { name: "Restore a company" }));
  return screen.getByRole("dialog", { name: "Restore a company" });
}

describe("backup and restore (Step 10K.9)", () => {
  afterEach(() => vi.unstubAllGlobals());

  it("shows a new code grouped, and Copy puts it on the clipboard", async () => {
    const writeText = vi.fn(() => Promise.resolve());
    Object.defineProperty(navigator, "clipboard", { value: { writeText }, configurable: true });
    renderApp(
      fakeApi({
        getPlayerState: owner,
        getBackupCode: () => ({ hasCode: false, createdAt: null }),
        createBackupCode: () => ({ code: CODE, createdAt: 1 }),
      }),
      "/settings",
    );
    await userEvent.click(await screen.findByRole("button", { name: "Back up company" }));
    const sheet = screen.getByRole("dialog", { name: "Back up your company" });
    await userEvent.click(
      await within(sheet).findByRole("button", { name: "Create a backup code" }),
    );
    expect(await within(sheet).findByLabelText("Backup code")).toHaveTextContent(CODE);
    expect(sheet).toHaveTextContent("Anyone with this code can open your company.");
    await userEvent.click(within(sheet).getByRole("button", { name: "Copy" }));
    expect(writeText).toHaveBeenCalledWith(CODE);
    expect(await within(sheet).findByRole("button", { name: "Copied" })).toBeInTheDocument();
  });

  it("warns about an existing code before replacing it", async () => {
    renderApp(
      fakeApi({
        getPlayerState: owner,
        getBackupCode: () => ({ hasCode: true, createdAt: 1 }),
      }),
      "/settings",
    );
    await userEvent.click(await screen.findByRole("button", { name: "Back up company" }));
    const sheet = screen.getByRole("dialog", { name: "Back up your company" });
    expect(
      await within(sheet).findByRole("button", { name: "Generate a new code" }),
    ).toBeInTheDocument();
    expect(sheet).toHaveTextContent("Your old code will stop working");
  });

  it("warns that a company past the tutorial is left behind, and not during the tutorial", async () => {
    const { unmount } = renderApp(fakeApi({ getPlayerState: owner }), "/settings");
    expect(await openRestore()).toHaveTextContent("current company will be left behind");
    unmount();
    renderApp(fakeApi({ getPlayerState: () => samplePlayerState() }), "/settings");
    expect(await openRestore()).not.toHaveTextContent("left behind");
  });

  it("restores and goes to HQ", async () => {
    let done = false;
    const api = fakeApi({
      getPlayerState: () => (done ? restored() : owner()),
      restoreCompany: () => {
        done = true;
        return { playerId: "p2", state: restored() };
      },
    });
    renderApp(api, "/settings");
    const sheet = await openRestore();
    await userEvent.type(within(sheet).getByRole("textbox"), CODE.toLowerCase());
    await userEvent.click(within(sheet).getByRole("button", { name: "Restore" }));
    await waitFor(() =>
      expect(api.call).toHaveBeenCalledWith("restoreCompany", { code: CODE.toLowerCase() }),
    );
    expect(await screen.findByRole("heading", { level: 1, name: "HQ" })).toBeInTheDocument();
    expect(screen.getByLabelText("Credits")).toHaveTextContent("77,000 cr");
  });

  it("shows a failed restore's error and stays put", async () => {
    renderApp(
      fakeApi({
        getPlayerState: owner,
        restoreCompany: () => {
          throw new ApiError(409, "restore-failed", "That code didn't open a company.");
        },
      }),
      "/settings",
    );
    const sheet = await openRestore();
    await userEvent.type(within(sheet).getByRole("textbox"), "WRONG");
    await userEvent.click(within(sheet).getByRole("button", { name: "Restore" }));
    expect(await within(sheet).findByRole("alert")).toHaveTextContent("didn't open a company");
    expect(screen.getByRole("dialog", { name: "Restore a company" })).toBeInTheDocument();
  });

  it("offers restore on the start screen too", async () => {
    let done = false;
    renderApp(
      fakeApi({
        getPlayerState: () => (done ? restored() : unauthorized()),
        restoreCompany: () => {
          done = true;
          return { playerId: "p2", state: restored() };
        },
      }),
    );
    const sheet = await openRestore();
    expect(sheet).not.toHaveTextContent("left behind");
    await userEvent.type(within(sheet).getByRole("textbox"), CODE);
    await userEvent.click(within(sheet).getByRole("button", { name: "Restore" }));
    expect(await screen.findByRole("heading", { level: 1, name: "HQ" })).toBeInTheDocument();
  });
});