#!/usr/bin/env node

/**
 * Reset Development Database
 * 
 * Drops and recreates the development database with a clean state.
 * Useful for development and testing.
 */

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

// Load environment variables
const envPath = path.resolve(__dirname, '..', '.env.development');
if (fs.existsSync(envPath)) {
  require('dotenv').config({ path: envPath });
}

// Check if DATABASE_URL is set
if (!process.env.DATABASE_URL) {
  console.error('❌ DATABASE_URL is not set');
  console.error('Please set it in .env.development');
  process.exit(1);
}

// Extract database name from URL
const dbUrl = process.env.DATABASE_URL;
const dbName = dbUrl.split('/').pop();

console.log('🔄 Resetting development database...\n');
console.log(`Database: ${dbName}`);
console.log(`URL: ${dbUrl}\n`);

try {
  // Drop existing connections
  console.log('Dropping existing connections...');
  execSync(
    `psql "${dbUrl}" -c "SELECT pg_terminate_backend(pid) FROM pg_stat_activity WHERE datname = '${dbName}' AND pid <> pg_backend_pid();" 2>/dev/null || true`,
    { stdio: 'pipe' }
  );

  // Drop the database
  console.log('Dropping database...');
  execSync(
    `psql "${dbUrl}" -c "DROP DATABASE IF EXISTS ${dbName};" 2>/dev/null || true`,
    { stdio: 'pipe' }
  );

  // Recreate the database
  console.log('Creating database...');
  execSync(`psql "${dbUrl}" -c "CREATE DATABASE ${dbName};"`, { stdio: 'pipe' });

  // Run migrations
  console.log('Running migrations...');
  execSync('npx prisma migrate deploy', { stdio: 'inherit' });

  console.log('\n✅ Development database reset successfully!');
  console.log('\nNext steps:');
  console.log('1. Seed the database (optional): npm run db:seed');
  console.log('2. Start development server: npm run dev');
} catch (error) {
  console.error('\n❌ Failed to reset database:', error.message);
  process.exit(1);
}