const bcrypt = require('bcrypt');
const { db, initializeDatabase } = require('../src/database/db');

async function runMigrations() {
  console.log('Running database migrations...');
  
  try {
    // Initialize tables
    await initializeDatabase();
    
    // Create default admin user if none exists
    const adminExists = await db('admin_users').first();
    if (!adminExists) {
      const defaultPassword = 'admin123'; // Change this!
      const passwordHash = await bcrypt.hash(defaultPassword, 10);
      
      await db('admin_users').insert({
        username: 'admin',
        email: 'admin@example.com',
        password_hash: passwordHash
      });
      
      console.log('Default admin user created:');
      console.log('Username: admin');
      console.log('Password: admin123');
      console.log('⚠️  Please change this password immediately!');
    }
    
    // Create default email templates if none exist
    const templateExists = await db('email_templates').first();
    if (!templateExists) {
      await db('email_templates').insert([
        {
          template_key: 'gallery_created',
          subject: 'Your Photo Gallery is Ready!',
          body_html: `<h2>Gallery Created Successfully</h2>
<p>Dear {{host_name}},</p>
<p>Your photo gallery "{{event_name}}" has been created successfully!</p>
<p><strong>Gallery Details:</strong></p>
<ul>
  <li>Event Date: {{event_date}}</li>
  <li>Gallery Link: {{gallery_link}}</li>
  <li>Password: {{gallery_password}}</li>
  <li>Expires: {{expiry_date}}</li>
</ul>
<p>Share this link and password with your guests to allow them to view and download photos.</p>`,
          body_text: 'Gallery Created Successfully\n\nDear {{host_name}},\n\nYour photo gallery "{{event_name}}" has been created successfully!',
          variables: JSON.stringify(['host_name', 'event_name', 'event_date', 'gallery_link', 'gallery_password', 'expiry_date'])
        },
        {
          template_key: 'expiration_warning',
          subject: 'Your Photo Gallery Expires Soon',
          body_html: `<h2>Gallery Expiring Soon</h2>
<p>Dear {{host_name}},</p>
<p>Your photo gallery "{{event_name}}" will expire in {{days_remaining}} days.</p>
<p>After expiration, the gallery will be archived and no longer accessible to guests.</p>
<p><a href="{{gallery_link}}">Visit Gallery</a></p>`,
          body_text: 'Gallery Expiring Soon\n\nDear {{host_name}},\n\nYour photo gallery "{{event_name}}" will expire in {{days_remaining}} days.',
          variables: JSON.stringify(['host_name', 'event_name', 'days_remaining', 'gallery_link'])
        }
      ]);
      console.log('Default email templates created');
    }

    // Create default email config if none exists
    const emailConfig = await db('email_configs').first();
    if (!emailConfig) {
      await db('email_configs').insert({
        smtp_host: process.env.SMTP_HOST || 'mailhog',
        smtp_port: process.env.SMTP_PORT || 1025,
        smtp_secure: process.env.SMTP_SECURE === 'true',
        smtp_user: process.env.SMTP_USER || '',
        smtp_pass: process.env.SMTP_PASS || '',
        from_email: process.env.EMAIL_FROM || 'noreply@photo-sharing.local',
        from_name: 'Photo Sharing'
      });
      console.log('Default email configuration created');
    }

    console.log('Migrations completed successfully');
    process.exit(0);
  } catch (error) {
    console.error('Migration failed:', error);
    process.exit(1);
  }
}

runMigrations();