/**
 * Bookmarklet Generator
 *
 * Converts a regular JavaScript file into a bookmarklet format.
 * - Removes all comments (single-line and multi-line)
 * - Wraps code in IIFE for bookmarklet format
 * - Minifies to a single line
 * - Copies to clipboard
 *
 * Usage:
 *   node code/utils/bookmarkletMaker.js <path-to-js-file>
 *   npm run bookmarklet -- <path-to-js-file>
 *
 * Example:
 *   npm run bookmarklet -- code/bookmarklets/example-bookmarklet.js
 */
import fs from 'fs';
import path from 'path';
import clipboardy from 'clipboardy';
import { fileURLToPath } from 'url';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

/**
 * Remove all comments from JavaScript code
 * @param {string} code - The JavaScript code
 * @returns {string} Code without comments
 */
function removeComments(code) {
  // Remove multi-line comments /* ... */
  code = code.replace(/\/\*[\s\S]*?\*\//g, '');
  // Remove single-line comments //
  code = code.replace(/\/\/.*$/gm, '');
  return code;
}

/**
 * Minify code to a single line
 * @param {string} code - The JavaScript code
 * @returns {string} Minified code
 */
function minify(code) {
  return code
    .split('\n')
    .map(line => line.trim())
    .filter(line => line.length > 0)
    .join(' ')
    .replace(/\s+/g, ' ')
    .replace(/\s*([{}();,])\s*/g, '$1');
}

/**
 * Generate bookmarklet from JavaScript file
 * @param {string} filePath - Path to the JavaScript file
 * @returns {string} The bookmarklet code
 */
function generateBookmarklet(filePath) {
  // Validate file exists
  if (!fs.existsSync(filePath)) {
    throw new Error(`File not found: ${filePath}`);
  }

  // Read the JavaScript file
  const jsCode = fs.readFileSync(filePath, 'utf8');

  // Clean and minify
  let cleanedCode = removeComments(jsCode);
  cleanedCode = minify(cleanedCode);

  // Wrap in IIFE and add javascript: protocol
  const bookmarklet = `javascript:(function(){${cleanedCode}})();`;

  return bookmarklet;
}

// Main execution
try {
  const filePath = process.argv[2];

  if (!filePath) {
    console.error('❌ Error: Please provide a file path');
    console.log('\nUsage:');
    console.log('  npm run bookmarklet -- <path-to-js-file>');
    console.log('\nExample:');
    console.log('  npm run bookmarklet -- code/bookmarklets/my-bookmarklet.js');
    process.exit(1);
  }

  const bookmarklet = generateBookmarklet(filePath);
  const fileName = path.basename(filePath);

  // Copy to clipboard
  clipboardy.writeSync(bookmarklet);

  console.log('✅ Bookmarklet generated successfully!');
  console.log(`📁 Source: ${fileName}`);
  console.log(`📋 Copied to clipboard (${bookmarklet.length} characters)`);
  console.log('\n📝 Next steps:');
  console.log('  1. Create a new bookmark in your browser');
  console.log('  2. Paste the clipboard content as the URL');
  console.log('  3. Give it a name and save');
} catch (error) {
  console.error('❌ Error:', error.message);
  process.exit(1);
}