lepton_basics.php

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<?php
 
declare(strict_types=1);
 
class LEPTON_basics
{
    const SYSTEM_DEFAULT_STR = 'System Default';
    public static $instance;
 
    public static function getInstance(): object
    {
        if (null === static::$instance)
        {
            static::$instance = new static();
        }
 
        return static::$instance;
    }
 
 
 
    static function get_errorlevels(): array
    {
        global $TEXT;
        // Create array
        $ER_LEVELS = [];
 
        // Add values to list
        if (isset($TEXT['SYSTEM_DEFAULT']))
        {
            $ER_LEVELS[''] = $TEXT['SYSTEM_DEFAULT'];
        }
        else
        {
            $ER_LEVELS[''] = self::SYSTEM_DEFAULT_STR;
        }
        
        $ER_LEVELS['0'] = 'E_NONE'; // standard for productive use      
        $ER_LEVELS[E_NOTICE] = 'E_NOTICE';
        $ER_LEVELS[E_WARNING] = 'E_WARNING';
        $ER_LEVELS['-1'] = 'E_EVERYTHING'; // highest level
 
        return $ER_LEVELS;
    }
 
    static function get_backend_translation(string $sKey = ""): string
    {
        global $TEXT, $THEME;
 
        $sLanguagePath_user     = THEME_PATH."/languages/".LANGUAGE.".php";
        $sLanguagePath_default  = THEME_PATH."/languages/EN.php";
 
        if (!isset($THEME))
        {
            if (file_exists($sLanguagePath_user))
            {
                require_once $sLanguagePath_user;
            }
            elseif( file_exists( $sLanguagePath_default ) )
            {
                require_once $sLanguagePath_default;
            }
            else
            {
                // avoid errors and conflicts for non existing $THEME 
                $THEME = [];
            }
        }
 
        if (isset($THEME[$sKey]))
        {
            return $THEME[$sKey];
        }
        elseif (isset($TEXT[$sKey]))
        {
            return $TEXT[$sKey];
        }
        else
        {
            return "** ".$sKey." (Key not found in Languages!)";
        }
    }
 
    static function getLanguagePath(string $sRootDir = ""): string
    {
        $lang = $sRootDir."/languages/".LANGUAGE.".php";
        return (file_exists($lang))
            ? $lang
            : $sRootDir."/languages/EN.php"
            ;
    }
}