SimpleEditConversation.php

<?php
namespace App\Bot\Conversations;

use Mpociot\BotMan\Button;
use Mpociot\BotMan\Conversation;
use Mpociot\BotMan\Question;

class SimpleEditConversation extends Conversation
{
    protected $cont;

    /**
     * Start the conversation
     */
    public function run()
    {
        $this->cont=0;
        $this->askAccion();
    }


    public function askAccion()
    {
        $question = Question::create('cont = '.$this->cont)
            ->fallback('Unable to create a new database')
            ->callbackId('create_database')
            ->addButtons([
                Button::create('minus 1')->value('minus'),
                Button::create( $this->cont)->value($this->cont),
                Button::create('sum 1')->value('sum'),
            ]);
        $this->ask($question, function () {
            $this->simpleCallback();
        });
    }


    public function keyboard()
    {
        $keyboard = [
            'inline_keyboard' => array(
                array( ['text' => 'minus 1', 'callback_data' => 'minus']),
                array( ['text' =>  "$this->cont", 'callback_data' => "$this->cont"]),
                array( ['text' => 'sum 1', 'callback_data' => 'sum']),
            ),
        ];

        return json_encode($keyboard);
    }

    private function simpleCallback()
    {
        $value = $this->bot->getConversationAnswer()->getValue();
        switch ($value) {
            case "minus":
                $text='Minus 1, now cont='.$this->cont;
                $this->cont-=1;
                break;
            case "sum":
                $text='Sum 1, now cont='.$this->cont;
                $this->cont+=1;
                break;
            default:
                $text='cont='.$this->cont;
                $this->bot->reply($value);
        }
        $parameters = [
            'text' => $text,
            'message_id' => $this->bot->getConversationAnswer()->getMessage()->getPayload()['message_id'],
            'parse_mode' => 'HTML',
            'reply_markup' => $this->keyboard()
        ];
        $this->bot->sendRequest('editMessageText', $parameters);
        $this->bot->storeConversation($this,function() { $this->simpleCallback(); },
            $text,['reply_markup' => $this->keyboard()]);
    }

}