import { NextRequest, NextResponse } from 'next/server';
import prisma from '@/lib/prisma';
import { getCurrentUser } from '@/lib/auth';
import type { ListAppsResponse } from '@/types/api-types';

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

    const { searchParams } = new URL(request.url);
    const limit = parseInt(searchParams.get('limit') || '50');
    const offset = parseInt(searchParams.get('offset') || '0');

    const [apps, total] = await Promise.all([
      prisma.generatedApp.findMany({
        where: { userId: user.id },
        orderBy: { createdAt: 'desc' },
        skip: offset,
        take: limit,
        select: {
          id: true,
          title: true,
          description: true,
          appType: true,
          status: true,
          createdAt: true,
        }
      }),
      prisma.generatedApp.count({
        where: { userId: user.id }
      })
    ]);

    const response: ListAppsResponse = {
      apps: apps.map(app => ({
        id: app.id,
        title: app.title,
        description: app.description || undefined,
        appType: app.appType || undefined,
        status: app.status,
        createdAt: app.createdAt.toISOString(),
      })),
      total,
    };

    return NextResponse.json(response, { status: 200 });
  } catch (error) {
    console.error('List apps error:', error);
    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
  }
}