added table of content [SEO]

app/Helpers/Helper.php

@@ -1271,3 +1271,98 @@ function sendingSMS($text, $number, $args)
     return true;
 
 }
+
+/**
+ * table of content generator
+ * @param $html
+ * @return array
+ */
+function generateTOC($html) {
+    // Load HTML into a DOMDocument for parsing
+    $doc = new DOMDocument();
+    @$doc->loadHTML(mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8'));
+
+    $toc = '';
+    $tocItems = [];
+    $lastH2 = '';
+    $lastH3 = '';
+    $idCounter = 0;
+
+    // Fetch all headings in the document
+    $headings = $doc->getElementsByTagName('*');
+
+    foreach ($headings as $heading) {
+        if (in_array($heading->nodeName, ['h2', 'h3'])) {
+            // Generate a unique ID for each heading
+            $id = generateHeadingID($heading->nodeValue, $idCounter);
+            $idCounter++;
+            $heading->setAttribute('id', $id);
+
+            if ($heading->nodeName === 'h2') {
+                $tocItems[] = [
+                    'title' => $heading->nodeValue,
+                    'id' => $id,
+                    'children' => []
+                ];
+                $lastH2 = $heading->nodeValue; // Update last H2 title
+                $lastH3 = ''; // Reset last H3
+            } elseif ($heading->nodeName === 'h3') {
+                if ($lastH2) {
+                    // Create a new child entry for the last H2
+                    $tocItems[count($tocItems) - 1]['children'][] = [
+                        'title' => $heading->nodeValue,
+                        'id' => $id,
+                    ];
+                    $lastH3 = $heading->nodeValue; // Update last H3 title
+                }
+            }
+        }
+    }
+
+    // Create the TOC HTML
+    $toc .= buildTOC($tocItems);
+
+    // Return the modified HTML and the TOC
+    return [$toc, $doc->saveHTML()];
+}
+
+/**
+ * generate heading ID for table of content
+ * @param $text
+ * @param $counter
+ * @return string
+ */
+function generateHeadingID($text, $counter) {
+    // Convert to lowercase and replace non-alphanumeric characters with dashes
+    $id = strtolower(preg_replace('/[^a-zA-Z0-9]+/', '-', $text));
+
+    // Remove leading and trailing dashes
+    $id = trim($id, '-');
+
+    // Ensure the ID is not empty
+    if (empty($id)) {
+        $id = 'heading';
+    }
+
+    // Add the counter to ensure uniqueness
+    $id .= '-' . $counter;
+
+    return $id;
+}
+
+// The buildTOC function remains unchanged
+function buildTOC($items) {
+    $html = '<ul>';
+    foreach ($items as $item) {
+        $html .= '<li>';
+        $html .= '<a href="#' . $item['id'] . '">' . $item['title'] . '</a>';
+
+        if (!empty($item['children'])) {
+            $html .= buildTOC($item['children']);
+        }
+
+        $html .= '</li>';
+    }
+    $html .= '</ul>';
+    return $html;
+}

app/Http/Controllers/Admin/PostController.php

@@ -58,6 +58,7 @@ class PostController extends XController
         $post->group_id = $request->input('group_id');
         $post->user_id = auth()->id();
         $post->is_pinned = $request->has('is_pin');
+        $post->table_of_contents = $request->has('table_of_contents');
         $post->icon = $request->input('icon');
 
         if ($post->hash == null) {

app/Models/Post.php

@@ -196,4 +196,14 @@ RESULT;
             return implode(',', $this->tags()->pluck('name')->toArray());
         }
     }
+
+    public function tableOfContents(){
+        list($toc, $modifiedHtml) = generateTOC($this->body);
+        return $toc;
+    }
+
+    public function bodyContent(){
+        list($toc, $modifiedHtml) = generateTOC($this->body);
+        return $modifiedHtml;
+    }
 }

composer.json

@@ -6,6 +6,7 @@
     "license": "GPL-3.0-or-later",
     "require": {
         "php": "^8.2",
+        "ext-dom": "*",
         "carlos-meneses/laravel-mpdf": "^2.1",
         "chillerlan/php-qrcode": "^5.0",
         "dpsoft/mellat": "^1.1",

database/migrations/2024_05_07_123414_create_posts_table.php

@@ -26,6 +26,7 @@ return new class extends Migration
             $table->unsignedInteger('like')->default(0);
             $table->unsignedInteger('dislike')->default(0);
             $table->string('icon', 128)->nullable();
+            $table->boolean('table_of_contents')->default(0);
             $table->softDeletes();
             $table->timestamps();
 

resources/lang/fa.json

@@ -418,6 +418,7 @@
     "Successfully Invoices": "",
     "Summary": "خلاصه",
     "System notification": "پیام سیستم",
+    "Table of contents": "فهرست عناوین",
     "Tag": "برچسب",
     "Tags": "برچسب‌ها",
     "Tags list": "فهرست برچسب‌ها",

resources/views/admin/posts/post-form.blade.php

@@ -103,13 +103,23 @@
                                    placeholder="{{__('Title')}}" value="{{old('title',$item->title??null)}}"/>
                         </div>
                     </div>
-                    <div class="col-md-12 mt-3">
+                    <div class="col-md-9 mt-3">
                         <label for="slug">
                             {{__('Slug')}}
                         </label>
                         <input name="slug" type="text" class="form-control @error('slug') is-invalid @enderror"
                                placeholder="{{__('Slug')}}" value="{{old('slug',$item->slug??null)}}"/>
                     </div>
+                    <div class="col-3 mt-4">
+                        <div class="form-group mt-4">
+                            <div class="form-check form-switch">
+                                <input class="form-check-input" name="table_of_contents"  @if (old('table_of_contents',$item->table_of_contents??0) != 0)
+                                    checked
+                                       @endif type="checkbox" id="table_of_contents">
+                                <label class="form-check-label" for="table_of_contents">{{__('Table of contents')}}</label>
+                            </div>
+                        </div>
+                    </div>
                     <div class="col-md-12 mt-3">
                         <div class="form-group">
                             <label for="subtitle">

resources/views/segments/post/PostSidebar/PostSidebar.blade.php

@@ -44,7 +44,14 @@
                         @endif
                     </div>
                     <hr>
+                    @if($post->table_of_contents)
+                        {!! $post->tableOfContents() !!}
+                        {!! $post->bodyContent() !!}
+                    @else
+
                         {!! $post->body !!}
+                    @endif
+
                 </div>
 
             </div>

resources/views/segments/post/SimplePost/SimplePost.blade.php

@@ -37,7 +37,13 @@
                 @endif
             </div>
             <hr>
+            @if($post->table_of_contents)
+                {!! $post->tableOfContents() !!}
+                {!! $post->bodyContent() !!}
+            @else
+
                 {!! $post->body !!}
+            @endif
 
         </div>
     </div>