import { NextRequest, NextResponse } from 'next/server';
import { verifyCredentials, generateToken } from '@/lib/admin/auth';

export async function POST(request: NextRequest) {
  try {
    const body = await request.json();
    const { username, password } = body;

    // Validate input
    if (!username || !password) {
      return NextResponse.json(
        { error: 'Username and password are required' },
        { status: 400 }
      );
    }

    // Verify credentials
    const isValid = verifyCredentials(username, password);

    if (!isValid) {
      return NextResponse.json(
        { error: 'Invalid credentials' },
        { status: 401 }
      );
    }

    // Generate JWT token
    const token = generateToken({
      username,
      isAdmin: true,
    });

    // Create response with token in cookie
    const response = NextResponse.json({
      success: true,
      user: {
        username,
        isAdmin: true,
      },
    });

    // Set HTTP-only cookie with JWT token
    response.cookies.set('admin-token', token, {
      httpOnly: true,
      secure: process.env.NODE_ENV === 'production',
      sameSite: 'lax',
      maxAge: 60 * 60 * 24, // 24 hours
      path: '/',
    });

    return response;
  } catch (error) {
    console.error('Login error:', error);
    return NextResponse.json(
      { error: 'Internal server error' },
      { status: 500 }
    );
  }
}