// @vitest-environment jsdom

import { render, screen } from "@testing-library/react";
import { describe, expect, it, vi } from "vitest";

import {
  ChunkRecoveryBoundary,
  isChunkLoadFailure,
} from "../../src/presentation/boundaries/chunk-recovery-boundary.tsx";
import { FeatureBoundary } from "../../src/presentation/boundaries/render-error-boundary.tsx";

function ChunkDefect(): never {
  throw new TypeError("Failed to fetch dynamically imported module");
}

function RenderDefect(): never {
  throw new Error("ordinary render defect");
}

describe("chunk recovery boundary classification", () => {
  it("recognizes lazy module failures without classifying ordinary render errors", () => {
    expect(
      isChunkLoadFailure(
        new TypeError("Failed to fetch dynamically imported module"),
      ),
    ).toBe(true);
    expect(isChunkLoadFailure(new Error("ordinary render defect"))).toBe(false);
  });

  it("runs the recovery input only for a lazy chunk rejection", async () => {
    const recover = vi.fn(async () => ({
      action: "support" as const,
      reason: "reload-already-attempted",
    }));
    render(
      <ChunkRecoveryBoundary chunkId="route-home" recover={recover}>
        <ChunkDefect />
      </ChunkRecoveryBoundary>,
    );

    expect(
      await screen.findByRole("heading", {
        name: "화면 자산을 복구하지 못했습니다.",
      }),
    ).toBeVisible();
    expect(recover).toHaveBeenCalledOnce();
    expect(recover).toHaveBeenCalledWith({
      chunkId: "route-home",
      failureKind: "CHUNK_LOAD_FAILURE",
    });
  });

  it("rethrows an ordinary component defect to the local render boundary", () => {
    const recover = vi.fn();
    render(
      <FeatureBoundary routeId="APP_HOME" buildId="build-a">
        <ChunkRecoveryBoundary chunkId="route-home" recover={recover}>
          <RenderDefect />
        </ChunkRecoveryBoundary>
      </FeatureBoundary>,
    );

    expect(screen.getByRole("alert")).toHaveTextContent(
      "화면을 표시하지 못했습니다.",
    );
    expect(recover).not.toHaveBeenCalled();
  });
});