marking chapters as complete and toggling value from course list and chapter page.

app/Http/Controllers/Chapter/CompleteToggle.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Http\Controllers\Chapter;
+
+use App\Http\Controllers\Controller;
+use App\Models\Chapter;
+use App\Models\Course;
+use Illuminate\Http\RedirectResponse;
+
+class CompleteToggle extends Controller
+{
+    public function __invoke(Course $course, Chapter $chapter): RedirectResponse
+    {
+        $chapter->update(['is_complete' => !$chapter->is_complete]);
+        return redirect()->back();
+    }
+}