Initial commit

app/Http/Controllers/Admin/ChapterController.php

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+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\Request;
+use App\Models\Course;
+use App\Models\Chapter;
+
+class ChapterController extends Controller
+{
+    public function store(Request $request)
+    {
+        $request->validate([
+            'lesson_section_id' => 'required|exists:lesson_sections,id',
+            'title' => 'required|max:255',
+        ]);
+		
+		// Find the current max order for this section
+		$maxOrder = Chapter::where('lesson_section_id', $request->lesson_section_id)->max('order');
+
+		// If no chapters yet, maxOrder will be null → start at 1
+		$nextOrder = $maxOrder ? $maxOrder + 1 : 1;
+	
+        Chapter::create([
+            'lesson_section_id' => $request->lesson_section_id,
+            'title' => $request->title,
+            'order' => $nextOrder,
+        ]);
+
+        return back()->with('success', 'Chapter added.');
+    }
+
+    public function destroy(Chapter $chapter)
+    {
+        $chapter->delete();
+        return back()->with('success', 'Chapter removed.');
+    }
+	
+	public function reorder(Request $request)
+	{
+		$request->validate([
+			'order' => 'required|string',
+		]);
+
+		$ids = json_decode($request->order, true);
+
+		if (is_array($ids)) {
+			foreach ($ids as $index => $id) {
+				Chapter::where('id', $id)->update(['order' => $index + 1]);
+			}
+		}
+
+		return back()->with('success', 'Chapter order updated.');
+	}	
+
+    public function show(Course $course, Chapter $chapter)
+    {
+        // (Optional) safety check: make sure chapter belongs to this course
+        // via its module / section chain, if you want to enforce that later.
+        return view('admin.chapters.show', [
+            'course'  => $course,
+            'chapter' => $chapter,
+        ]);
+    }
+
+
+}