#!/usr/bin/env node

/**
 * Test CLI Package Locally
 *
 * This script allows testing the CLI package locally before publishing to npm.
 * It builds both packages, creates local tarballs, and installs the CLI package
 * globally for testing.
 */

import { execSync } from 'child_process';
import fs from 'fs';
import path from 'path';
import { fileURLToPath } from 'url';

// Get the directory of the current module
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const rootDir = path.join(__dirname, '..');
const cliPackageDir = path.join(rootDir, 'cli-package');

// Ensure the CLI package directory exists
if (!fs.existsSync(cliPackageDir)) {
  console.error(`Error: CLI package directory not found at ${cliPackageDir}`);
  process.exit(1);
}

try {
  // Step 1: Ensure versions are in sync
  console.log('Ensuring versions are in sync...');
  execSync('node scripts/generate-version.js', { stdio: 'inherit', cwd: rootDir });

  // Step 2: Build the main package
  console.log('Building main package...');
  execSync('npm run build', { stdio: 'inherit', cwd: rootDir });

  // Step 3: Create a local tarball of the main package
  console.log('Creating local tarball of main package...');
  const mainPackOutput = execSync('npm pack', { cwd: rootDir }).toString().trim();
  const mainPackageTarball = path.join(rootDir, mainPackOutput);
  console.log(`Main package tarball created: ${mainPackageTarball}`);

  // Step 4: Build the CLI package
  console.log('Building CLI package...');
  execSync('npm run build', { stdio: 'inherit', cwd: cliPackageDir });

  // Step 5: Verify the CLI was built successfully
  const cliPath = path.join(cliPackageDir, 'dist', 'cli.js');
  if (!fs.existsSync(cliPath)) {
    console.error(`Error: CLI build failed. File not found at ${cliPath}`);
    process.exit(1);
  }

  // Step 6: Temporarily update the CLI package.json to use the local main package
  console.log('Updating CLI package.json to use local main package...');
  const cliPackageJsonPath = path.join(cliPackageDir, 'package.json');
  const cliPackageJson = JSON.parse(fs.readFileSync(cliPackageJsonPath, 'utf8'));
  
  // Save the original dependency for restoration later
  const originalDependency = cliPackageJson.dependencies['@soulcraft/brainy'];
  
  // Update to use the local tarball
  cliPackageJson.dependencies['@soulcraft/brainy'] = `file:${mainPackageTarball}`;
  
  // Write the updated package.json
  fs.writeFileSync(cliPackageJsonPath, JSON.stringify(cliPackageJson, null, 2));

  // Step 7: Create a local tarball of the CLI package
  console.log('Creating local tarball of CLI package...');
  const cliPackOutput = execSync('npm pack', { cwd: cliPackageDir }).toString().trim();
  const cliPackageTarball = path.join(cliPackageDir, cliPackOutput);
  console.log(`CLI package tarball created: ${cliPackageTarball}`);

  // Step 8: Restore the original dependency in CLI package.json
  console.log('Restoring original dependency in CLI package.json...');
  cliPackageJson.dependencies['@soulcraft/brainy'] = originalDependency;
  fs.writeFileSync(cliPackageJsonPath, JSON.stringify(cliPackageJson, null, 2));

  // Step 9: Install the CLI package globally for testing
  console.log('Installing CLI package globally for testing...');
  execSync(`npm install -g ${cliPackageTarball}`, { stdio: 'inherit' });

  console.log('\nCLI package installed globally for testing!');
  console.log('You can now run the CLI using the "brainy" command.');
  console.log('\nTo uninstall after testing:');
  console.log('npm uninstall -g @soulcraft/brainy-cli');
  
} catch (error) {
  console.error('Error:', error.message);
  process.exit(1);
}