import { NextRequest, NextResponse } from 'next/server';
import { cookies } from 'next/headers';

const API_BASE_URL = process.env.API_BASE_URL || process.env.NEXT_PUBLIC_API_BASE_URL;

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

    // Forward to backend API
    const res = await fetch(`${API_BASE_URL}/api/auth/login`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify(body),
    });

    if (!res.ok) {
      const text = await res.text().catch(() => '');
      return NextResponse.json(
        { error: text || 'Login failed' },
        { status: res.status }
      );
    }

    const data = await res.json();

    // Set HTTP-only cookie instead of returning token
    const cookieStore = await cookies();
    cookieStore.set('session_token', data.token, {
      httpOnly: true,
      secure: process.env.NODE_ENV === 'production',
      sameSite: 'lax',
      maxAge: 60 * 60 * 24 * 7, // 7 days
      path: '/',
    });

    // Return user data without token
    return NextResponse.json({
      user: data.user,
    });
  } catch (err: any) {
    return NextResponse.json(
      { error: err?.message || 'Login failed' },
      { status: 500 }
    );
  }
}