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

export const dynamic = 'force-dynamic';

export async function GET(request: NextRequest) {
  try {
    const userId = cookies().get('userId')?.value;
    if (!userId) {
      return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
    }

    // Get user with plan info
    const user = await db.user.findUnique({
      where: { id: userId },
      select: {
        plan: true,
      },
    });

    if (!user) {
      return NextResponse.json({ error: 'User not found' }, { status: 404 });
    }

    // Count dynamic QR codes
    const dynamicQRCount = await db.qRCode.count({
      where: {
        userId,
        type: 'DYNAMIC',
      },
    });

    // Count static QR codes
    const staticQRCount = await db.qRCode.count({
      where: {
        userId,
        type: 'STATIC',
      },
    });

    // Determine limits based on plan
    let dynamicLimit = 3; // FREE plan default
    if (user.plan === 'PRO') {
      dynamicLimit = 50;
    } else if (user.plan === 'BUSINESS') {
      dynamicLimit = 500;
    } else if ((user.plan as string) === 'ENTERPRISE') {
      dynamicLimit = 99999;
    }

    return NextResponse.json({
      dynamicUsed: dynamicQRCount,
      dynamicLimit,
      staticUsed: staticQRCount,
    });
  } catch (error) {
    console.error('Error fetching user stats:', error);
    return NextResponse.json(
      { error: 'Internal server error' },
      { status: 500 }
    );
  }
}
