<?php

/**
 * Chill is a software for social workers
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

declare(strict_types=1);

namespace Chill\PersonBundle\Config;

/**
 * Give help to interact with the config for alt names.
 */
class ConfigPersonAltNamesHelper
{
    /**
     * the raw config, directly from the container parameter.
     *
     * @var array
     */
    private $config = [];

    public function __construct($config)
    {
        $this->config = $config;
    }

    /**
     * get the choices as key => values.
     */
    public function getChoices(): array
    {
        $choices = [];

        foreach ($this->config as $entry) {
            $labels = $entry['labels'];
            $lang = false;
            $label = false;
            $cur = reset($labels);

            while ($cur) {
                if (key($labels) === 'lang') {
                    $lang = current($labels);
                }

                if (key($labels) === 'label') {
                    $label = current($labels);
                }

                if (false !== $lang && false !== $label) {
                    $choices[$entry['key']][$lang] = $label;
                    $lang = false;
                    $label = false;
                }
                $cur = next($labels);
            }
        }

        return $choices;
    }

    /**
     * Return true if at least one alt name is configured.
     */
    public function hasAltNames(): bool
    {
        return [] !== $this->config;
    }
}