init config model

src/Model/Config.php

@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yggverse\Yoda\Model;
+
+class Config
+{
+    public function __construct(
+        ?string $filename = null
+    ) {
+        if (empty($filename))
+        {
+            $filename = __DIR__ .
+                        DIRECTORY_SEPARATOR . '..' .
+                        DIRECTORY_SEPARATOR . '..' .
+                        DIRECTORY_SEPARATOR . 'config.json';
+        }
+
+        if (!file_exists($filename))
+        {
+            throw new \Exception; // @TODO
+        }
+
+        if (!is_readable($filename))
+        {
+            throw new \Exception; // @TODO
+        }
+
+        if (!$data = file_get_contents($filename))
+        {
+            throw new \Exception; // @TODO
+        }
+
+        if (!$config = @json_decode($data))
+        {
+            throw new \Exception; // @TODO
+        }
+
+        foreach ($config as $key => $value)
+        {
+            $this->{$key} = $value; // @TODO
+        }
+    }
+}