POSController.php

Handles POS checkout, product filtering, sale processing, and returns.

<?php

namespace App\Http\Controllers;

use App\Models\CashLog;
use App\Models\Collection;
use Illuminate\Http\Request;
use Inertia\Inertia;
use App\Models\Sale;
use App\Models\SaleItem;
use App\Models\Transaction;
use App\Models\Contact;
use App\Models\ProductStock;
use App\Models\Product;
use App\Models\Store;
use App\Models\ReloadAndBillMeta;
use App\Services\ReceiptDataService;
use App\Models\Setting;
use App\Notifications\SaleCreated;
use Illuminate\Support\Facades\Notification;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Storage;

use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\Mail;
use App\Models\Charge;

class POSController extends 

... (truncated -- full source via MCP)