<?php
/**
 * 2007-2021 ETS-Soft
 *
 * NOTICE OF LICENSE
 *
 * This file is not open source! Each license that you purchased is only available for 1 wesite only.
 * If you want to use this file on more websites (or projects), you need to purchase additional licenses.
 * You are not allowed to redistribute, resell, lease, license, sub-license or offer our resources to any third party.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please contact us for extra customization service at an affordable price
 *
 * @author ETS-Soft <etssoft.jsc@gmail.com>
 * @copyright  2007-2021 ETS-Soft
 * @license    Valid for 1 website (or project) for each purchase of license
 *  International Registered Trademark & Property of ETS-Soft
 */

class ETS_CFU_Pipe
{
    public $before = '';
    public $after = '';

    public function __construct($text)
    {
        $text = (string)$text;
        $pipe_pos = strpos($text, '|');
        if (false === $pipe_pos) {
            $this->before = $this->after = trim($text);
            // $this->after ='';
        } else {
            $this->before = trim(Tools::substr($text, 0, $pipe_pos));
            $this->after = trim(Tools::substr($text, $pipe_pos + 1));
        }
    }
}

class ETS_CFU_Pipes
{
    private $pipes = array();

    public function __construct(array $texts)
    {
        foreach ($texts as $text) {
            $this->add_pipe($text);
        }
    }

    private function add_pipe($text)
    {
        $pipe = new ETS_CFU_Pipe($text);
        $this->pipes[] = $pipe;
    }

    public function do_pipe($before)
    {
        foreach ($this->pipes as $pipe) {
            if ($pipe->before == $before) {
                return $pipe->after;
            }
        }
        return $before;
    }

    public function collect_befores()
    {
        $befores = array();

        foreach ($this->pipes as $pipe) {
            $befores[] = $pipe->before;
        }
        return $befores;
    }

    public function collect_afters()
    {
        $afters = array();
        foreach ($this->pipes as $pipe) {
            $afters[] = $pipe->after;
        }
        return $afters;
    }

    public function random_pipe()
    {
        if ($this->zero()) {
            return null;
        }
        return $this->pipes[array_rand($this->pipes)];
    }

    public function zero()
    {
        return empty($this->pipes);
    }
}