const fs = require('fs');
const path = require('path');
const MAX_LINES = 400;

// List of file patterns to ignore (optional, can be customized)
const IGNORE_PATTERNS = [
  /\.lock$/,  // Lock files
  /\.min\.js$/,  // Minified files
  /\.map$/,  // Source maps
  /package-lock\.json$/,
  /bun\.lock$/,
  /tsconfig\.tsbuildinfo$/,
  /\.md$/,  // Markdown documentation files
  /context\.md$/,  // Context files for sub-agents
  /project-structure\.txt$/,  // Generated project structure
];

function shouldIgnore(filePath) {
  return IGNORE_PATTERNS.some(pattern => pattern.test(filePath));
}

const files = process.argv.slice(2);
if (files.length === 0) {
  console.log('ℹ️ No files to check');
  process.exit(0);
}

let hasError = false;

files.forEach(file => {
  // Skip ignored patterns
  if (shouldIgnore(file)) {
    console.log(`⏭️ Skipping ${file} (ignored pattern)`);
    return;
  }

  // Check if file exists (it might have been deleted)
  if (!fs.existsSync(file)) {
    console.log(`⏭️ Skipping ${file} (file does not exist)`);
    return;
  }

  try {
    const content = fs.readFileSync(file, 'utf8');
    const lines = content.split('\n').length;
    
    if (lines > MAX_LINES) {
      console.error(`❌ ${file} is too large (${lines} lines, max ${MAX_LINES}). AI agents will struggle. Please refactor!`);
      hasError = true;
    } else {
      console.log(`✅ ${file} (${lines} lines) - OK`);
    }
  } catch (err) {
    console.error(`⚠️ Error reading ${file}: ${err.message}`);
    // Don't fail on read errors, just warn
  }
});

if (hasError) {
  process.exit(1);
}