ProductOptions.php

<?php

namespace App\Conversations;

use Illuminate\Support\Arr;
use App\Extensions\Elements\Button;
use App\Extensions\Elements\Buttonset;
use BotMan\BotMan\Messages\Incoming\Answer;

/**
 * ProductOptions class
 *
 * The conversation class for suggesting options
 *
 * @package App\Conversations
 */
class ProductOptions extends Category
{
    /**
     * The options to suggest for selected sku
     * 
     * @var string
     */
    protected $sku;

    /**
     * Receive incoming parameters from the route (phrase)
     *
     * @param string $options filter options
     * @return \App\Conversations\Category
     */
    public function receive($categoryId = null, $sku = null, $phrase = null, $page = null)
    {
        $this->categoryId = $categoryId;
        $this->sku = $sku;
        $this->phrase = $phrase;
        $this->page = $page;

        return $this;
    }

    /**
     * Execute the conversation
     *
     * @return \App\Conversations\ProductListConversation
     */
    public function run()
    {
        $this->bot->types();

        $product = $this->load()
            ->get('products')
            ->first(function($product) {
                return $product->get('sku') === $this->sku;
            });

        $this->suggestOptions($product);

        return $this;
    }

    /**
    * Suggest options for sizes
    *
    * @param \Illuminate\Support\Collection $product
    * @return void
    */
    protected function suggestOptions($product)
    {
        $sizes = $this->getSizes($product);

        $buttons = $product->get('option')
            ->get('value')
            ->map(function($option) {
                return Button::create($option->get('label'))
                    ->value($option->get('code'));
            });

        
        $buttonset = Buttonset::create()
            ->text('Please select any option')
            ->addButtons($buttons)
            ->asSuggestions();

        $this->ask($buttonset)
            ->then(function($answer) use ($product) {
                if ($answer->isInteractiveMessageReply()) {
                    $this->addToCart($product, $answer->getText());
                } else {
                    $this->suggestOptions();
                }
            });
    }

    /**
    * Add the option to the cart
    *
    * @param \Illuminate\Support\Collection $product
    * @param string $option
    * @return void
    */
    protected function addToCart($product, string $option)
    {
        $query = Arr::query([
            'sku' =>  $product->get('sku'),
            'options' => [],
        ]);
    }
}