import { sanitizeHtml } from '@/lib/utils/email-formatter';
import { simpleParser } from 'mailparser';

function getAddressText(addresses: any): string | null {
  if (!addresses) return null;
  
  try {
    if (Array.isArray(addresses)) {
      return addresses.map(a => a.address || '').join(', ');
    } else if (typeof addresses === 'object') {
      return addresses.address || null;
    }
    return null;
  } catch (error) {
    console.error('Error formatting addresses:', error);
    return null;
  }
}

export async function parseEmail(emailContent: string) {
  try {
    const parsed = await simpleParser(emailContent);
    
    return {
      subject: parsed.subject || null,
      from: getAddressText(parsed.from),
      to: getAddressText(parsed.to),
      cc: getAddressText(parsed.cc),
      bcc: getAddressText(parsed.bcc),
      date: parsed.date || null,
      html: parsed.html ? sanitizeHtml(parsed.html as string) : null,
      text: parsed.text || null,
      attachments: parsed.attachments || [],
      headers: Object.fromEntries(parsed.headers)
    };
  } catch (error) {
    console.error('Error parsing email:', error);
    throw error;
  }
}