#!/usr/bin/env node

/**
 * Local Development Setup Script
 * 
 * This script helps set up the local development environment
 * by creating the PostgreSQL database and running initial setup.
 */

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

console.log('🚀 Setting up Vaishnavi Creation Backend for local development...\n');

// Check if .env file exists
const envPath = path.join(__dirname, '.env');
const envExamplePath = path.join(__dirname, '.env.example');

if (!fs.existsSync(envPath)) {
  if (fs.existsSync(envExamplePath)) {
    console.log('📝 Creating .env file from .env.example...');
    fs.copyFileSync(envExamplePath, envPath);
    console.log('✅ .env file created! Please update it with your database credentials.\n');
  } else {
    console.log('❌ .env.example file not found. Please create a .env file manually.\n');
    process.exit(1);
  }
}

// Check Node.js version
const nodeVersion = process.version;
const majorVersion = parseInt(nodeVersion.slice(1).split('.')[0]);

if (majorVersion < 18) {
  console.log('❌ Node.js 18+ is required. Current version:', nodeVersion);
  process.exit(1);
}

console.log('✅ Node.js version check passed:', nodeVersion);

// Install dependencies
console.log('\n📦 Installing dependencies...');
try {
  execSync('npm install', { stdio: 'inherit' });
  console.log('✅ Dependencies installed successfully!');
} catch (error) {
  console.log('❌ Failed to install dependencies:', error.message);
  process.exit(1);
}

// Generate Prisma client
console.log('\n🔧 Generating Prisma client...');
try {
  execSync('npx prisma generate', { stdio: 'inherit' });
  console.log('✅ Prisma client generated successfully!');
} catch (error) {
  console.log('❌ Failed to generate Prisma client:', error.message);
  console.log('💡 Make sure your PostgreSQL database is running and the DATABASE_URL in .env is correct.');
  process.exit(1);
}

// Test database connection and run migrations
console.log('\n🗄️ Setting up database...');
try {
  execSync('npx prisma db push', { stdio: 'inherit' });
  console.log('✅ Database schema created successfully!');
} catch (error) {
  console.log('❌ Failed to create database schema:', error.message);
  console.log('💡 Please check:');
  console.log('   - PostgreSQL is running');
  console.log('   - Database "vaishnavi_db" exists');
  console.log('   - DATABASE_URL in .env is correct');
  console.log('   - User has proper permissions');
  process.exit(1);
}

// Seed database
console.log('\n🌱 Seeding database...');
try {
  execSync('npm run db:seed', { stdio: 'inherit' });
  console.log('✅ Database seeded successfully!');
} catch (error) {
  console.log('⚠️ Failed to seed database:', error.message);
  console.log('💡 You can run "npm run db:seed" manually later.');
}

console.log('\n🎉 Setup completed successfully!');
console.log('\n📋 Next steps:');
console.log('1. Make sure MongoDB is running on port 27017');
console.log('2. Update your .env file with correct database credentials');
console.log('3. Run "npm run dev" to start the development server');
console.log('\n🔗 Useful commands:');
console.log('- Start dev server: npm run dev');
console.log('- View database: npm run db:studio');
console.log('- Run tests: npm test');
console.log('- Lint code: npm run lint');
console.log('\n📚 API will be available at: http://localhost:3000');
console.log('🏥 Health check: http://localhost:3000/health');
console.log('\n👤 Default admin user: admin@vaishnavi.com / admin123');
console.log('👤 Default customer: customer@example.com / customer123');