update LibConfig.php

lib/LibConfig.php

@@ -7,27 +7,63 @@
 use Symfony\Component\Yaml\Yaml;
 
 class LibConfig {
-
+    /**
+     * The path to the configuration file.
+     *
+     * @var string
+     */
     protected $file;
+
+    /**
+     * The configuration data.
+     *
+     * @var array
+     */
     protected $data;
 
+    /**
+     * LibConfig constructor.
+     *
+     * @param string $file The path to the configuration file.
+     */
     public function __construct($file)
     {
         $this->file = $file;
         $this->data = $this->read();
     }
 
+    /**
+     * Get a value from the configuration data.
+     *
+     * @param string $key     The key to retrieve.
+     * @param mixed  $default The default value to return if the key does not exist.
+     *
+     * @return mixed The value associated with the key, or the default value if the key does not exist.
+     */
     public function get($key, $default = null)
     {
         return $this->data[$key] ?? $default;
     }
 
+    /**
+     * Set a value in the configuration data.
+     *
+     * @param string $key   The key to set.
+     * @param mixed  $value The value to set.
+     *
+     * @return void
+     */
     public function set($key, $value)
     {
         $this->data[$key] = $value;
         $this->save();
     }
 
+    /**
+     * Read the configuration file.
+     *
+     * @return array The parsed configuration data.
+     */
     protected function read()
     {
         if (file_exists($this->file)) {
@@ -36,6 +72,11 @@ protected function read()
         return [];
     }
 
+    /**
+     * Save the configuration data to the file.
+     *
+     * @return void
+     */
     public function save()
     {
         $content = Yaml::dump($this->data);