feat: nested profiler now check state of parent profile on profile

src/Exception/ParentProfileIsNotStarted.php

@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PetrKnap\Profiler\Exception;
+
+use LogicException;
+
+/**
+ * @internal exception should never be thrown out
+ */
+final class ParentProfileIsNotStarted extends LogicException implements ProfilerException
+{
+}

src/Profile.php

@@ -44,6 +44,11 @@ public function __construct()
         $this->outputOption = Optional::empty();
     }
 
+    public function getState(): ProfileState
+    {
+        return $this->state;
+    }
+
     /**
      * @throws Exception\ProfileCouldNotBeStarted
      */

src/Profiling.php

@@ -6,8 +6,6 @@
 
 final class Profiling
 {
-    private bool $wasFinished = false;
-
     /**
      * @param Profile<mixed> $profile
      */
@@ -29,14 +27,13 @@ public static function start(): self
      */
     public function finish(): ProfileInterface
     {
-        if ($this->wasFinished) {
-            throw new Exception\ProfilingHasBeenAlreadyFinished();
-        }
+        try {
+            $this->profile->finish();
 
-        $this->profile->finish();
-        $this->wasFinished = true;
-
-        return $this->profile;
+            return $this->profile;
+        } catch (Exception\ProfileException $profileException) {
+            throw new Exception\ProfilingHasBeenAlreadyFinished(previous: $profileException);
+        }
     }
 
     /**
@@ -53,6 +50,15 @@ public function __construct(
             ) {
                 $this->parentProfile = $parentProfile;
             }
+
+            public function profile(callable $callable): ProcessableProfileInterface & ProfileWithOutputInterface
+            {
+                if ($this->parentProfile?->getState() !== ProfileState::Started) {
+                    throw new Exception\ParentProfileIsNotStarted();
+                }
+
+                return parent::profile($callable);
+            }
         };
     }
 }