import type { ErrorInfo } from "react";
import { afterEach, describe, expect, it, vi } from "vitest";
import { restartActiveDungeonSession } from "../game/dungeonSession";
import { SceneErrorBoundary } from "./SceneErrorBoundary";

vi.mock("../game/dungeonSession", () => ({
  restartActiveDungeonSession: vi.fn(() => true),
}));

describe("scene error recovery", () => {
  afterEach(() => {
    vi.useRealTimers();
    vi.unstubAllGlobals();
    vi.restoreAllMocks();
  });

  it("automatically rebuilds the active dungeon without reloading the page", () => {
    vi.useFakeTimers();
    vi.stubGlobal("window", {
      setTimeout,
      clearTimeout,
      location: { reload: vi.fn() },
    });
    vi.spyOn(console, "error").mockImplementation(() => undefined);
    const boundary = new SceneErrorBoundary({ children: null });
    boundary.state = {
      error: new Error("transient GLB failure"),
      retryCount: 0,
      retryScheduled: false,
    };
    boundary.setState = vi.fn((patch) => {
      const next = typeof patch === "function"
        ? patch(boundary.state, boundary.props)
        : patch;
      if (next) boundary.state = { ...boundary.state, ...next };
    }) as typeof boundary.setState;

    boundary.componentDidCatch(
      boundary.state.error!,
      { componentStack: "\n    at DungeonEnvironment" } as ErrorInfo,
    );
    expect(boundary.state.retryScheduled).toBe(true);

    vi.advanceTimersByTime(500);

    expect(restartActiveDungeonSession).toHaveBeenCalledOnce();
    expect(window.location.reload).not.toHaveBeenCalled();
    expect(boundary.state).toMatchObject({
      error: null,
      retryCount: 1,
      retryScheduled: false,
    });
    boundary.componentWillUnmount();
  });
});