<?php

/**
 * LanguageModel class file
 *
 * PHP Version 7.2
 *
 * @category Model
 * @package  Ez
 * @author   Imenso Software <admin@imensosoftware.com>
 * @license  http://imensosoftware/license.php GNU Public License
 * @link     http://imensosoftware.com/recipes
 */

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

/**
 * LanguageModel class
 *
 * The class manage Language related queries
 *
 * @category LanguageModel
 * @package  Ez
 * @author   Imenso Software <admin@imensosoftware.com>
 * @license  http://imensosoftware/license.php GNU Public License
 * @link     http://imensosoftware.com/recipes
 */
  
class Language extends Model
{
    public $table = "languages";
    public $fillable = ['language_l','language_s','so'];
    public $timestamps = false;

    /**
     * GetLanguageCombination function make a language combination and
     * return the language combination.
     *
     * @param  int chars
     * @param  int size
     * @param  array combinations
     * @return language combination array
     */
    public static function getLanguageCombination($chars, $size, $combinations = array())
    {
        // if it's the first iteration, the first set
        // of combinations is the same as the set of characters
        if (empty($combinations)) {
            $combinations = $chars;
        }
        // we're done if we're at size 1
        if ($size == 1) {
            return $combinations;
        }
        // initialise array to put new values in
        $new_combinations = array();
        // loop through existing combinations and character set to create strings
        foreach ($combinations as $combination) {
            foreach ($chars as $char) {
                if ($combination != $char) {
                    $new_combinations[] = [$combination,$char] ;
                }
            }
        }
        // call same function again for the next iteration
        return self::getLanguageCombination($chars, $size - 1, $new_combinations);
    }
}