import { NextRequest, NextResponse } from 'next/server';
import { getDatabase } from '@/lib/db/mongodb';

const ALLOWED_COLLECTIONS = [
  'accessroles', 'aclentries', 'actions', 'agentcategories', 'agents',
  'assistants', 'balances', 'banners', 'conversations', 'conversationtags',
  'files', 'groups', 'keys', 'memoryentries', 'messages', 'pluginauths',
  'presets', 'projects', 'promptgroups', 'prompts', 'roles', 'sessions',
  'sharedlinks', 'tokens', 'toolcalls', 'transactions', 'users'
];

export async function GET(
  request: NextRequest,
  { params }: { params: Promise<{ collection: string }> }
) {
  const { collection } = await params;
  
  try {
    
    if (!ALLOWED_COLLECTIONS.includes(collection)) {
      return NextResponse.json(
        { error: 'Collection non autorisée' },
        { status: 400 }
      );
    }

    const { searchParams } = new URL(request.url);
    const page = parseInt(searchParams.get('page') || '1');
    const limit = parseInt(searchParams.get('limit') || '20');
    const filter = JSON.parse(searchParams.get('filter') || '{}');

    const db = await getDatabase();
    const skip = (page - 1) * limit;

    const [data, total] = await Promise.all([
      db.collection(collection)
        .find(filter)
        .skip(skip)
        .limit(limit)
        .sort({ createdAt: -1 })
        .toArray(),
      db.collection(collection).countDocuments(filter)
    ]);

    return NextResponse.json({
      data,
      total,
      page,
      limit,
      totalPages: Math.ceil(total / limit)
    });
  } catch (error) {
    console.error(`Erreur lors de la récupération de ${collection}:`, error);
    return NextResponse.json(
      { error: 'Erreur serveur' },
      { status: 500 }
    );
  }
}