import { NextResponse } from 'next/server';
import Imap from 'imap';

export async function POST(request: Request) {
  try {
    const { email, password, host, port } = await request.json();

    // IMAP configuration
    const imapConfig: Imap.Config = {
      user: email,
      password: password,
      host: host,
      port: parseInt(port, 10),
      tls: true,
      tlsOptions: { 
        rejectUnauthorized: false,
        servername: host
      },
      authTimeout: 10000,
      connTimeout: 10000
    };

    // Create a promise-based IMAP connection
    const imap = new Imap(imapConfig);

    return new Promise((resolve, reject) => {
      imap.once('ready', () => {
        imap.end();
        resolve(NextResponse.json({ success: true }));
      });

      imap.once('error', (err: Error) => {
        console.error('IMAP connection error:', err);
        reject(NextResponse.json({ 
          error: 'Failed to connect to email server',
          details: err.message
        }, { status: 401 }));
      });

      imap.connect();
    });

  } catch (error) {
    console.error('Error in test connection:', error);
    return NextResponse.json({ 
      error: 'Failed to test connection',
      details: error instanceof Error ? error.message : 'Unknown error'
    }, { status: 500 });
  }
}