Add OptionalRecurringProducts component and corresponding view

app/Livewire/BillingPortal/Cart/OptionalRecurringProducts.php

@@ -0,0 +1,26 @@
+<?php
+
+/**
+* Invoice Ninja (https://invoiceninja.com).
+*
+* @link https://github.com/invoiceninja/invoiceninja source repository
+*
+* @copyright Copyright (c) 2022. Invoice Ninja LLC (https://invoiceninja.com)
+*
+* @license https://www.elastic.co/licensing/elastic-license
+*/
+
+namespace App\Livewire\BillingPortal\Cart;
+
+use App\Models\Subscription;
+use Livewire\Component;
+
+class OptionalRecurringProducts extends Component
+{
+    public Subscription $subscription;
+
+    public function render(): \Illuminate\View\View
+    {
+        return view('billing-portal.v3.cart.optional-recurring-products');
+    }
+}

resources/views/billing-portal/v3/cart/optional-recurring-products.blade.php

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+<div class="space-y-10">
+    @unless(empty($subscription->optional_recurring_product_ids))
+        @foreach($subscription->service()->optional_recurring_products() as $index => $product)
+        <div>
+            <div class="flex items-start justify-between space-x-4">
+                <div class="flex flex-start">
+                    @if(filter_var($product->product_image, FILTER_VALIDATE_URL))
+                    <div
+                        class="h-16 w-16 flex-shrink-0 overflow-hidden rounded-md border border-gray-200 mr-2"
+                    >
+                        <img
+                            src="{{ $product->product_image }}"
+                            alt=""
+                            class="h-full w-full object-cover object-center border rounded-md"
+                        />
+                    </div>
+                    @endif
+
+                    <div class="flex flex-col">
+                        <h2 class="text-lg font-medium">{{ $product->product_key }}</h2>
+                        <p class="block text-sm">{{ \App\Utils\Number::formatMoney($product->price, $subscription->company) }} / <span class="lowercase">{{ App\Models\RecurringInvoice::frequencyForKey($subscription->frequency_id) }}</span></p>
+                    </div>
+                </div>
+
+                <div class="flex flex-col-reverse space-y-3">
+                    <div class="flex">
+                        @if(is_numeric($product->max_quantity))
+                            @if($subscription->use_inventory_management && $product->in_stock_quantity == 0)
+                                <p class="text-sm font-light text-red-500 text-right mr-2 mt-2">{{ ctrans('texts.out_of_stock') }}</p>
+                            @else
+                                <p class="text-sm font-light text-gray-700 text-right mr-2 mt-2">{{ ctrans('texts.qty') }}</p>
+                            @endif
+        
+                            <select class="rounded-md border-gray-300 shadow-sm sm:text-sm" @if($subscription->use_inventory_management && $product->in_stock_quantity == 0) disabled @endif>
+                                <option value="0" selected="selected">0</option>
+                                @for ($i = 1; $i <= ($subscription->use_inventory_management ? min($product->in_stock_quantity, max(100,$product->max_quantity)) : max(100,$product->max_quantity)); $i++)
+                                    <option value="{{ $i }}">{{ $i }}</option>
+                                @endfor
+                            </select>
+                        @endif
+                    </div>
+                </div>
+            </div>
+
+            <article class="prose my-3 text-sm">
+                {!! $product->markdownNotes() !!}
+            </article>
+        </div>
+        @endforeach 
+    @endunless
+</div>