import { describe, it, expect } from 'vitest';
import { createRequire } from 'module';
import fs from 'node:fs/promises';
import os from 'node:os';
import path from 'node:path';
import { fileURLToPath } from 'node:url';

describe('CommonJS interop', () => {
  it('supports require("micro-logs")("namespace", level)', async () => {
    const repoRoot = fileURLToPath(new URL('..', import.meta.url));
    const tmpDir = await fs.mkdtemp(path.join(os.tmpdir(), 'micro-logs-cjs-interop-'));

    try {
      const nodeModulesDir = path.join(tmpDir, 'node_modules');
      await fs.mkdir(nodeModulesDir, { recursive: true });

      // Create a symlink so Node resolves `require("micro-logs")` by package name.
      const linkPath = path.join(nodeModulesDir, 'micro-logs');
      await fs.symlink(repoRoot, linkPath);

      const requireInTmp = createRequire(path.join(tmpDir, 'index.cjs'));
      const microLogs = requireInTmp('micro-logs');

      expect(typeof microLogs).toBe('function');

      const logger = microLogs('nx-md-parser:bullet-parser', 'debug');
      expect(typeof logger.debug).toBe('function');
      expect(typeof logger.info).toBe('function');
    } finally {
      await fs.rm(tmpDir, { recursive: true, force: true });
    }
  });
});