showArticle -> like-Button

content/showArticle.php

@@ -1,28 +1,10 @@
 <?php
-include_once 'php/controller/showArticle-controller.php';
-require_once 'php/model/CommentManager.php';
-
 $comments = [];
 $mainComments = [];
 $repliesByParent = [];
+$articleObj = null;
 
-if (isset($_GET["id"])) {
-    try {
-        $commentManager = CommentManager::getInstance();
-        $comments = $commentManager->getCommentsByArticle($_GET["id"]);
-
-        foreach ($comments as $comment) {
-            if ($comment->isReply()) {
-                $parentId = $comment->getParentCommentId();
-                $repliesByParent[$parentId][] = $comment;
-            } else {
-                $mainComments[] = $comment;
-            }
-        }
-    } catch (Exception $e) {
-        $_SESSION["message"] = "internal_error";
-    }
-}
+include_once 'php/controller/showArticle-controller.php';
 ?>
 <!--
      Seite: Anzeige für Beiträge
@@ -35,9 +17,28 @@ if (isset($_GET["id"])) {
     <!-- Metadaten & Titel -->
     <div class="article-view-top-section">
 
-        <?php if (isset($category) && !empty($category)): ?>
-            <span class="article-view-category"><?php echo htmlspecialchars($category); ?></span>
-        <?php endif; ?>
+        <div class="article-view-top-section">
+
+            <div class="category-and-likes-row">
+                <?php if (isset($category) && !empty($category)): ?>
+                    <span class="article-view-category"><?php echo htmlspecialchars($category); ?></span>
+                <?php endif; ?>
+
+                <!-- Like-Anzeige und dynamischer Like-Button  -->
+                <?php if (isset($articleObj) && $articleObj !== null): ?>
+                    <div class="article-view-likes">
+                        <span>❤️ <span class="like-count"><?php echo $articleObj->getLikeCount(); ?></span></span>
+
+                        <?php if (isset($_SESSION["user_email"])): ?>
+                            <a href="php/controller/like-controller.php?id=<?php echo $articleObj->getId(); ?>" class="like-toggle-btn">
+                                <?php echo $articleObj->hasLiked($_SESSION["user_email"]) ? '👎 Gefällt mir nicht mehr' : '👍 Gefällt mir'; ?>
+                            </a>
+                        <?php else: ?>
+                            <span class="login-hint">(Anmelden zum Liken)</span>
+                        <?php endif; ?>
+                    </div>
+                <?php endif; ?>
+            </div>
 
         <h1 class="article-view-title">
             <?php if (isset($title)) { echo htmlspecialchars($title); } ?>

css/showArticle.css

@@ -240,3 +240,47 @@
 .comment-login-hint p {
     margin-bottom: 1rem;
 }
+
+/*
+Like-Button etc.
+ */
+
+.category-and-likes-row {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    margin-bottom: 10px;
+}
+
+.article-view-likes {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    font-size: 0.95em;
+}
+
+.article-view-likes .like-count {
+    font-weight: bold;
+}
+
+.article-view-likes .login-hint {
+    font-size: 0.8em;
+    color: #777;
+}
+
+/* Interaktiver Like/Unlike-Button */
+.like-toggle-btn {
+    text-decoration: none;
+    padding: 4px 10px;
+    border: 1px solid #bbb;
+    border-radius: 4px;
+    background-color: #f5f5f5;
+    color: #333;
+    font-weight: 500;
+    transition: background-color 0.2s ease, border-color 0.2s ease;
+}
+
+.like-toggle-btn:hover {
+    background-color: #eaeaea;
+    border-color: #999;
+}

php/controller/showArticle-controller.php

@@ -5,6 +5,7 @@ if (session_status() === PHP_SESSION_NONE) {
 
 require_once 'php/model/Article.php';
 require_once 'php/model/ArticleManager.php';
+require_once 'php/model/CommentManager.php';
 
 if (isset($_GET["id"]) && !empty($_GET["id"])){
     try {
@@ -17,11 +18,25 @@ if (isset($_GET["id"]) && !empty($_GET["id"])){
             $category = $article->getCategory();
             $author = $article->getAuthor();
             $tags = $article->getTags();
+            $articleObj = $article; // Objekt für die Like-Abfagen sichern
         }else{
             //header("location: index.php?pfad=404");
             include_once "content/404.php";
             exit();
         }
+
+        $commentManager = CommentManager::getInstance();
+        $comments = $commentManager->getCommentsByArticle($_GET["id"]);
+
+        foreach ($comments as $comment) {
+            if ($comment->isReply()) {
+                $parentId = $comment->getParentCommentId();
+                $repliesByParent[$parentId][] = $comment;
+            } else {
+                $mainComments[] = $comment;
+            }
+        }
+
     } catch (Exception $e){
         $_SESSION["message"] = "internal_error";
         exit();