#!/usr/bin/env node

const fs = require('fs');

// Create backup
const timestamp = new Date().toISOString().replace(/[:.]/g, '-').slice(0, -5);
const backupPath = `src/mocks/resumeInterviewMock.js.backup_${timestamp}_fully_remove`;
const mockContent = fs.readFileSync('src/mocks/resumeInterviewMock.js', 'utf-8');
fs.writeFileSync(backupPath, mockContent);
console.log(`✓ Backup created: ${backupPath}`);

// Function to fully remove all indentation from answers
function fullyRemoveIndentation(answer) {
  // Split by newlines
  const lines = answer.split('\\n');
  const cleanedLines = [];

  for (let line of lines) {
    // Remove ALL leading whitespace from every line
    const cleanedLine = line.trimStart();

    // Only add non-empty lines or explicit empty lines
    if (cleanedLine || line === '') {
      cleanedLines.push(cleanedLine);
    }
  }

  return cleanedLines.join('\\n');
}

// Process the file
let updatedContent = mockContent;
let count = 0;
const processedAnswers = [];

// Pattern to match answer fields (handles escaped characters properly)
const answerRegex = /"answer":\s*"((?:[^"\\]|\\.)*)"/g;

updatedContent = updatedContent.replace(answerRegex, (match, answerContent) => {
  // Unescape the answer content for processing
  let unescaped = answerContent
    .replace(/\\n/g, '\n')
    .replace(/\\"/g, '"')
    .replace(/\\\\/g, '\\');

  // Fully remove all indentation
  let cleaned = fullyRemoveIndentation(unescaped);

  // Store first few for display
  if (processedAnswers.length < 3) {
    processedAnswers.push({
      original: unescaped.substring(0, 200),
      cleaned: cleaned.substring(0, 200)
    });
  }

  // Re-escape for JSON
  let escaped = cleaned
    .replace(/\\/g, '\\\\')
    .replace(/"/g, '\\"')
    .replace(/\n/g, '\\n');

  count++;
  return `"answer": "${escaped}"`;
});

console.log(`\n✅ Fully removed indentation from ${count} answer fields`);

// Save the file
fs.writeFileSync('src/mocks/resumeInterviewMock.js', updatedContent);

// Verify syntax
const { execSync } = require('child_process');
try {
  execSync('node -c src/mocks/resumeInterviewMock.js', { encoding: 'utf-8' });
  console.log('✅ Syntax validation passed');

  // Show before/after comparison
  console.log('\n📋 Before/After comparison:\n');
  processedAnswers.forEach((item, idx) => {
    console.log(`Example ${idx + 1}:`);
    console.log('BEFORE (with indentation):');
    console.log(item.original);
    console.log('\nAFTER (left-aligned):');
    console.log(item.cleaned);
    console.log('\n' + '='.repeat(60) + '\n');
  });

  console.log('✅ All content is now left-aligned without any indentation.');

} catch (error) {
  console.error('❌ Syntax error detected, restoring backup...');
  fs.writeFileSync('src/mocks/resumeInterviewMock.js', mockContent);
  console.log('Backup restored');
  console.error('Error:', error.message);
}