kulakpos_web/Modules/Business/App/Exports/ExportDue.php

<?php

namespace Modules\Business\App\Exports;

use App\Models\Party;
use Illuminate\Contracts\View\View;
use Maatwebsite\Excel\Concerns\FromView;

class ExportDue implements FromView
{
    public function view(): View
    {
        $user = auth()->user();
        $activeBranch = $user->active_branch;
        $business_id = $user->business_id;

        $query = Party::where('business_id', $business_id)
            ->where('type', '!=', 'Supplier')
            ->when(request('search'), function ($q) {
                $q->where(function ($q2) {
                    $q2->where('type', 'like', '%' . request('search') . '%')
                        ->orWhere('name', 'like', '%' . request('search') . '%')
                        ->orWhere('phone', 'like', '%' . request('search') . '%')
                        ->orWhere('credit_limit', 'like', '%' . request('search') . '%');
                });
            })
            ->when(request('type'), function ($q) {
                $q->where('type', request('type'));
            })
            ->with('sales_dues')
            ->latest();

        $parties = $query->get();

        if ($activeBranch) {
            $parties = $parties
                ->transform(function ($customer) use ($activeBranch) {
                    $party_due = $customer->sales_dues
                        ->where('branch_id', $activeBranch->id)
                        ->sum('dueAmount');

                    if ($customer->branch_id === $activeBranch->id) {
                        $openingBalanceDue = $customer->opening_balance_type === 'due'
                            ? ($customer->opening_balance ?? 0)
                            : 0;

                        $customer->due = $openingBalanceDue + $party_due;
                    } else {

                        $customer->due = $party_due;
                    }
                    return $customer;
                })
                ->filter(fn($customer) => $customer->due > 0)
                ->take(request('per_page') ?? 20)
                ->values();
        } else {
            $parties = $parties
                ->filter(fn($customer) => ($customer->due ?? 0) > 0)
                ->take(request('per_page') ?? 20)
                ->values();
        }

        return view('business::reports.due.excel-csv', compact('parties'));
    }
}