More over engineering.

TBH at this point I think I need a DI container.

public/index.php

@@ -1,10 +1,13 @@
 <?php
 
 use FooBar\Configuration;
+use FooBar\ReadableState;
+use FooBar\State;
 
 require_once '../vendor/autoload.php';
 
 $config = Configuration::loadConfig();
+$state = new State($config);
 
 function auth_check(Configuration $config)
 {
@@ -12,26 +15,22 @@ function auth_check(Configuration $config)
         http_response_code(403);
     }
 
-
     echo 'Some text otherwise PHP crashes. I wish this was a joke.';
 }
 
-function toggle(Configuration $config)
+function toggle(Configuration $config, State $state)
 {
     if ($config->isAuthorized()) {
-        $file = $config->stateFile();
-        if ($config->isOpen()) {
-            unlink($file);
-        } else {
-            touch($file);
-        }
+        $state->toggle();
     }
 
     header('location: ' . $_SERVER['REQUEST_URI']);
 }
 
-function display_state(bool $open)
+function display_state(ReadableState $state)
 {
+    $open = $state->isOpen();
+
     header('X-Foobar-Open: ' . var_export($open, true));
     if ($open) {
         require '../templates/open.html';
@@ -43,7 +42,7 @@ function display_state(bool $open)
 if (isset($_POST['auth_check'])) {
     auth_check($config);
 } elseif (isset($_POST['toggle'])) {
-    toggle($config);
+    toggle($config, $state);
 } else {
-    display_state($config->isOpen());
+    display_state($state);
 }