import { NextRequest, NextResponse } from 'next/server';
import { getSession } from '@/lib/auth';
import { conversationService } from '@/lib/control-center';
import { prisma } from '@/lib/db';

export async function GET(request: NextRequest) {
  const session = await getSession();
  if (!session) {
    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
  }

  const { searchParams } = new URL(request.url);
  const limit = parseInt(searchParams.get('limit') || '20', 10);
  const offset = parseInt(searchParams.get('offset') || '0', 10);

  try {
    const [conversations, total] = await Promise.all([
      conversationService.listByUser(session.user.id, limit, offset),
      prisma.controlCenterConversation.count({
        where: { userId: session.user.id }
      })
    ]);

    return NextResponse.json({
      conversations,
      total,
      limit,
      offset
    });
  } catch (error) {
    console.error('Failed to list conversations:', error);
    return NextResponse.json(
      { error: 'Failed to fetch conversations' },
      { status: 500 }
    );
  }
}