Add all files

app/Livewire/Components/CurrencySwitch.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace App\Livewire\Components;
+
+use App\Classes\Cart;
+use App\Livewire\Component;
+use App\Models\Currency;
+
+class CurrencySwitch extends Component
+{
+    public $currentCurrency;
+
+    protected $currencies = [];
+
+    public function mount()
+    {
+        $this->currentCurrency = session('currency', config('settings.default_currency'));
+        $this->currencies = Currency::all()->map(fn ($currency) => [
+            'value' => $currency->code,
+            'label' => $currency->code,
+        ])->values()->toArray();
+        if (Cart::get()->isNotEmpty() || count($this->currencies) <= 1) {
+            $this->skipRender();
+        }
+    }
+
+    public function updatedCurrentCurrency($currency)
+    {
+        if (Cart::get()->isNotEmpty()) {
+            $this->notify('You cannot change the currency while there are items in the cart.', 'error');
+            $this->currentCurrency = session('currency', config('settings.default_currency'));
+
+            return;
+        }
+        session(['currency' => $currency]);
+
+        return $this->redirect(request()->header('Referer', '/'), navigate: true);
+    }
+
+    public function render()
+    {
+        return view('components.currency-switch');
+    }
+}