#!/usr/bin/env node

/**
 * Interactive Setup Wizard
 * Guides users through the complete setup process
 */

const readline = require('readline');
const fs = require('fs');
const path = require('path');
const { execSync } = require('child_process');

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout
});

function question(query) {
  return new Promise(resolve => rl.question(query, resolve));
}

function displayBanner() {
  console.log('\n================================================');
  console.log('🚀 Property Image Tagging API - Setup Wizard');
  console.log('================================================\n');
}

async function checkEnvFile() {
  const envPath = path.join(process.cwd(), '.env');
  if (fs.existsSync(envPath)) {
    console.log('✅ .env file found\n');
    return true;
  } else {
    console.log('❌ .env file not found\n');
    return false;
  }
}

async function setupEnvironment() {
  console.log('📝 Environment Configuration\n');
  
  const dbPassword = await question('Enter MySQL root password (press Enter if no password): ');
  const anthropicKey = await question('Enter your Anthropic API key (or press Enter to skip): ');
  const port = await question('Server port (default 3000): ') || '3000';
  const skipAuth = await question('Skip authentication for development? (y/n, default: y): ');
  
  const envContent = `# Environment Configuration
NODE_ENV=development
PORT=${port}

# Database Configuration
DB_HOST=localhost
DB_PORT=3306
DB_USER=root
DB_PASSWORD=${dbPassword}
DB_NAME=property_tagging

# Claude AI Configuration (REQUIRED)
# Get your API key from: https://console.anthropic.com/
ANTHROPIC_API_KEY=${anthropicKey}

# Authentication (Optional - for development only)
# Set to true to skip API key authentication during development
SKIP_AUTH=${skipAuth.toLowerCase() !== 'n'}

# Logging
LOG_LEVEL=info
`;

  const envPath = path.join(process.cwd(), '.env');
  fs.writeFileSync(envPath, envContent);
  console.log('\n✅ .env file created\n');
}

async function setupDatabase() {
  console.log('🗄️  Setting up database...\n');
  
  try {
    execSync('node scripts/setup-database.js', { stdio: 'inherit' });
    return true;
  } catch (error) {
    console.log('\n❌ Database setup failed\n');
    console.log('You can try setting it up manually later with: npm run db:setup\n');
    return false;
  }
}

async function createApiKey() {
  const create = await question('\n🔑 Do you want to create an API key now? (y/n): ');
  
  if (create.toLowerCase() === 'y') {
    try {
      console.log('\n');
      execSync('node scripts/manage-api-keys.js create', { stdio: 'inherit' });
      console.log('\n✅ API key created! Save it securely.\n');
    } catch (error) {
      console.log('\n❌ Failed to create API key\n');
      console.log('You can create one later with: npm run apikey:create\n');
    }
  }
}

async function displayNextSteps(dbSetup) {
  console.log('\n================================================');
  console.log('✅ Setup Complete!');
  console.log('================================================\n');
  
  console.log('Next steps:\n');
  
  if (!dbSetup) {
    console.log('⚠️  Database setup incomplete. Run:');
    console.log('   npm run db:setup\n');
  }
  
  console.log('🚀 Start the server:');
  console.log('   npm start        (production mode)');
  console.log('   npm run dev      (development mode with auto-reload)\n');
  
  console.log('📚 Available commands:');
  console.log('   npm run db:setup         - Set up database');
  console.log('   npm run apikey:create    - Create API key');
  console.log('   npm run apikey:list      - List API keys');
  console.log('   npm run apikey:revoke    - Revoke API key\n');
  
  console.log('📖 For more information, see SETUP_GUIDE.md\n');
  
  console.log('🌐 The API will be available at: http://localhost:' + (process.env.PORT || '3000'));
  console.log('');
}

async function main() {
  try {
    displayBanner();
    
    const envExists = await checkEnvFile();
    
    if (!envExists) {
      const create = await question('Would you like to create it now? (y/n): ');
      if (create.toLowerCase() === 'y') {
        await setupEnvironment();
      } else {
        console.log('\nSetup cancelled. Please create a .env file manually.\n');
        console.log('You can copy .env.example and fill in the values:\n');
        console.log('   cp .env.example .env\n');
        rl.close();
        return;
      }
    } else {
      // Load existing .env
      require('dotenv').config();
      
      const update = await question('Would you like to update the .env configuration? (y/n): ');
      if (update.toLowerCase() === 'y') {
        await setupEnvironment();
        // Reload after update
        require('dotenv').config();
      }
    }
    
    const dbSetup = await setupDatabase();
    
    if (dbSetup) {
      await createApiKey();
    }
    
    await displayNextSteps(dbSetup);
    
  } catch (error) {
    console.error('\n❌ Setup failed:', error.message);
    console.error('\nPlease check the error and try again.\n');
  } finally {
    rl.close();
  }
}

// Run the wizard
main();