const dotenv = require('dotenv');
const path = require('path');
const fs = require('fs');

const envPath = path.join(__dirname, '../../.env');
if (fs.existsSync(envPath)) {
  dotenv.config({ path: envPath });
  console.log('📄 Loaded .env file');
} else {
  dotenv.config();
}

const ADMIN_EMAIL = process.env.ADMIN_EMAIL?.trim();
const ADMIN_PASSWORD = process.env.ADMIN_PASSWORD?.trim();

if (!ADMIN_EMAIL || !ADMIN_PASSWORD) {
  console.error('❌ ADMIN_EMAIL and ADMIN_PASSWORD must be set in environment variables');
  process.exit(1);
}

console.log('📧 Admin Email:', ADMIN_EMAIL);
console.log('🔑 Password:', ADMIN_PASSWORD ? 'SET' : 'NOT SET');
console.log('📊 Database URL:', process.env.DATABASE_URL ? 'SET' : 'NOT SET');

import 'reflect-metadata';
import { AppDataSource } from '../config/database';
import { User } from '../entities/User';
import bcrypt from 'bcryptjs';

/**
 * Initialize permanent admin user from environment variables
 * This ensures the admin user always exists and maintains admin status
 */
export async function initializeAdmin(): Promise<void> {
  const adminEmail = process.env.ADMIN_EMAIL?.trim();
  const adminPassword = process.env.ADMIN_PASSWORD?.trim();

  if (!adminEmail || !adminPassword) {
    console.log('⚠️  ADMIN_EMAIL and ADMIN_PASSWORD not set - skipping admin initialization');
    return;
  }

  try {
    // Check if database is already initialized
    if (!AppDataSource.isInitialized) {
      await AppDataSource.initialize();
    }

    const userRepository = AppDataSource.getRepository(User);
    
    let user = await userRepository.findOne({ where: { email: adminEmail.toLowerCase() } });

    if (user) {
      // User exists - ensure they are admin and update password if needed
      const needsUpdate = !user.isAdmin || !user.isActive;
      
      if (needsUpdate) {
        user.isAdmin = true;
        user.isActive = true;
        console.log(`✅ Updated user ${adminEmail} to admin status`);
      }
      
      // Always update password to match env (ensures it stays in sync)
      const hashedPassword = await bcrypt.hash(adminPassword, 12);
      user.password = hashedPassword;
      
      await userRepository.save(user);
      console.log(`✅ Permanent admin user maintained: ${adminEmail}`);
    } else {
      // Create new admin user
      const hashedPassword = await bcrypt.hash(adminPassword, 12);
      
      user = userRepository.create({
        email: adminEmail.toLowerCase(),
        password: hashedPassword,
        name: process.env.ADMIN_NAME || 'Admin User',
        isAdmin: true,
        isActive: true,
        isCreator: false,
      });

      await userRepository.save(user);
      console.log(`✅ Permanent admin user created: ${adminEmail}`);
    }
  } catch (error) {
    console.error('❌ Error initializing admin:', error);
    if (error instanceof Error) {
      console.error('Error message:', error.message);
    }
    // Don't throw - allow app to continue even if admin init fails
  }
}

/**
 * Standalone script to create/update admin user
 */
async function createAdmin() {
  const adminEmail = ADMIN_EMAIL;
  const adminPassword = ADMIN_PASSWORD;

  if (!adminEmail || !adminPassword) {
    console.error('❌ ADMIN_EMAIL and ADMIN_PASSWORD must be set in environment variables');
    process.exit(1);
  }

  try {
    console.log('\n🔧 Initializing database connection...');
    await AppDataSource.initialize();
    console.log('✅ Database connected');

    const userRepository = AppDataSource.getRepository(User);

    console.log(`\n🔍 Looking for user: ${adminEmail}`);
    
    let user = await userRepository.findOne({ where: { email: adminEmail.toLowerCase() } });

    if (user) {
      console.log('✅ User found, updating to permanent admin...');
      user.isAdmin = true;
      user.isActive = true;
      
      const hashedPassword = await bcrypt.hash(adminPassword, 12);
      user.password = hashedPassword;
      console.log('✅ Password updated');
      
      await userRepository.save(user);
      console.log('✅ User updated to permanent admin successfully!');
      console.log(`\n📧 Email: ${user.email}`);
      console.log(`👤 Admin: ${user.isAdmin}`);
      console.log(`🆔 User ID: ${user.id}`);
    } else {
      console.log('⚠️  User not found, creating new permanent admin user...');
      
      const hashedPassword = await bcrypt.hash(adminPassword, 12);
      
      user = userRepository.create({
        email: adminEmail.toLowerCase(),
        password: hashedPassword,
        name: process.env.ADMIN_NAME || 'Admin User',
        isAdmin: true,
        isActive: true,
        isCreator: false,
      });

      await userRepository.save(user);
      console.log('✅ Permanent admin user created successfully!');
      console.log(`\n📧 Email: ${user.email}`);
      console.log(`👤 Admin: ${user.isAdmin}`);
      console.log(`🆔 User ID: ${user.id}`);
    }

    await AppDataSource.destroy();
    console.log('\n✅ Done!');
    process.exit(0);
  } catch (error) {
    console.error('❌ Error:', error);
    if (error instanceof Error) {
      console.error('Error message:', error.message);
      console.error('Error stack:', error.stack);
    }
    process.exit(1);
  }
}

// Only run if this file is executed directly (not imported)
if (require.main === module) {
  createAdmin();
}