Simplify the language file

We just need to creating the file and load it via config

system/htmly.php

@@ -3,16 +3,8 @@
 // Load the configuration file
 config('source', $config_file);
 
-// Settings for the language
-if ( config('language') === "de" ) {
-  i18n('source', 'lang/lang-de.ini'); // Load the German language file
-  $date_format = '%d. %B %Y';  // Date format German style
-  setlocale(LC_TIME, 'de_DE', 'de_DE.utf8', "German");  // Change time format to German
-} else {  // Default: English ("en")
-  i18n('source', 'lang/lang-en.ini'); // Load the English language file
-  $date_format = '%B %d, %Y';  // Date format English style
-  setlocale(LC_TIME, 'en_US', 'en_US.utf8', "English"); // Change time format to English
-}
+// Load the language file
+get_language();
 
 // Set the timezone
 if (config('timezone')) {

system/includes/functions.php

@@ -3201,3 +3201,26 @@ function replace_href($string, $tag, $class, $url)
     return preg_replace('~<(?:!DOCTYPE|/?(?:html|head|body))[^>]*>\s*~i', '', utf8_decode($doc->saveHTML($doc->documentElement)));
 
 }
+
+function get_language() 
+{
+	
+    $langID = config('language');
+    $langFile = 'lang/'. $langID . '.ini';
+    $local = strtolower($langID);
+
+    // Settings for the language
+    if (!isset($langID) || config('language') === 'en') {
+        i18n('source', 'lang/en.ini'); // Load the English language file
+        setlocale(LC_ALL, 'en_US'); // Change time format to English
+    } else {	
+        if (file_exists($langFile)) {
+            i18n('source', 'lang/' . $langID . '.ini');
+            setlocale(LC_ALL, $local);
+        } else {
+            i18n('source', 'lang/en.ini'); // Load the English language file
+            setlocale(LC_ALL, 'en_US'); // Change time format to English
+        }
+    }
+
+}