import { mkdtempSync, rmSync } from "node:fs";
import { tmpdir } from "node:os";
import path from "node:path";
import { afterEach, describe, expect, it } from "vitest";
import { runNpmVerifyCommand } from "../../scripts/lib/npm-verify-exec.ts";

const tempDirs: string[] = [];

function makeTempRoot(): string {
  const root = mkdtempSync(path.join(tmpdir(), "openclaw-npm-verify-exec-"));
  tempDirs.push(root);
  return root;
}

afterEach(() => {
  for (const dir of tempDirs.splice(0)) {
    rmSync(dir, { force: true, recursive: true });
  }
});

describe("npm verifier command execution", () => {
  it("trims successful command output", () => {
    const root = makeTempRoot();

    expect(
      runNpmVerifyCommand(
        {
          command: process.execPath,
          args: ["-e", "process.stdout.write('  ok\\n')"],
        },
        root,
        { timeoutMs: 5_000 },
      ),
    ).toBe("ok");
  });

  it("bounds hung commands even when they ignore SIGTERM", () => {
    const root = makeTempRoot();
    const startedAt = Date.now();

    expect(() =>
      runNpmVerifyCommand(
        {
          command: process.execPath,
          args: ["-e", "process.on('SIGTERM', () => {}); setInterval(() => {}, 1000);"],
        },
        root,
        { timeoutMs: 100 },
      ),
    ).toThrow(/ETIMEDOUT|timed out/u);
    expect(Date.now() - startedAt).toBeLessThan(2_500);
  });

  it("bounds buffered command output", () => {
    const root = makeTempRoot();

    expect(() =>
      runNpmVerifyCommand(
        {
          command: process.execPath,
          args: ["-e", "process.stdout.write('x'.repeat(2048));"],
        },
        root,
        { maxBufferBytes: 1024, timeoutMs: 5_000 },
      ),
    ).toThrow(/ENOBUFS|maxBuffer/u);
  });
});