ErrorMessage.php

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<?php

namespace Combu;

class ErrorMessage {
    
    private static $instance = NULL;

    private $language;
    private $folder;
    private $messages;
    

    public static function Initialize($language = "en") {
        // Instantiate the singleton instance
        self::$instance = new self();
        self::$instance->folder = (defined("ERRORS_FOLDER") && ERRORS_FOLDER ? ERRORS_FOLDER : "");
        self::$instance->messages = array();
        if (!file_exists(self::$instance->folder) || !is_dir(self::$instance->folder)) {
            self::$instance->folder = FALSE;
        }
        if (self::$instance->folder) {
            // Load the english language to be sure all errors are defined, even if the other languages miss some errors
            self::$instance->LoadLanguage("en");
            // Load the favorite language
            if ($language) {
                self::$instance->LoadLanguage($language);
            }
        }
    }

    private static function LoadLanguage($language) {
        $filename = self::$instance->folder . "errors_" . $language . ".php";
        if (self::$instance->language != $language && file_exists($filename)) {
            // Set the current language
            self::$instance->language = $language;
            // Initialize the errors array and include the language file
            $errors = array();
            include_once $filename;
            // Load the custom language file if exists
            $filename = self::$instance->folder . "errors_" . $language . "_custom.php";
            if (file_exists($filename))
                include_once $filename;
            if (isset($errors) && is_array($errors)) {
                self::$instance->messages = array_merge(self::$instance->messages, $errors);
            }
        }
    }
    
    public static function Get($errorName) {
        if (array_key_exists($errorName, self::$instance->messages)) {
            return self::$instance->messages[$errorName];
        }
        return "";
    }
    
    public static function GetLanguage() {
        return self::$instance->language;
    }
}