import fs from "node:fs/promises";
import os from "node:os";
import path from "node:path";
import { afterEach, describe, expect, it, vi } from "vitest";
import { copyStaticExtensionAssets } from "../../scripts/runtime-postbuild.mjs";

const cleanupDirs: string[] = [];

afterEach(async () => {
  await Promise.all(
    cleanupDirs.splice(0).map((dir) => fs.rm(dir, { recursive: true, force: true })),
  );
});

async function createTempRoot() {
  const dir = await fs.mkdtemp(path.join(os.tmpdir(), "openclaw-runtime-postbuild-"));
  cleanupDirs.push(dir);
  return dir;
}

describe("runtime postbuild static assets", () => {
  it("copies declared static assets into dist", async () => {
    const rootDir = await createTempRoot();
    const src = "extensions/acpx/src/runtime-internals/mcp-proxy.mjs";
    const dest = "dist/extensions/acpx/mcp-proxy.mjs";
    const sourcePath = path.join(rootDir, src);
    const destPath = path.join(rootDir, dest);
    await fs.mkdir(path.dirname(sourcePath), { recursive: true });
    await fs.writeFile(sourcePath, "proxy-data\n", "utf8");

    copyStaticExtensionAssets({
      rootDir,
      assets: [{ src, dest }],
    });

    expect(await fs.readFile(destPath, "utf8")).toBe("proxy-data\n");
  });

  it("warns when a declared static asset is missing", async () => {
    const rootDir = await createTempRoot();
    const warn = vi.fn();

    copyStaticExtensionAssets({
      rootDir,
      assets: [{ src: "missing/file.mjs", dest: "dist/file.mjs" }],
      warn,
    });

    expect(warn).toHaveBeenCalledWith(
      "[runtime-postbuild] static asset not found, skipping: missing/file.mjs",
    );
  });
});