tags working

src/Services/TagManager.php

@@ -1,14 +1,53 @@
 <?php
+
 namespace Novaconium\Services;
-/**
- * TagManager Class
- * Handles tag preparation, insertion, and linking for pages.
- * Cleans up controller by encapsulating tag logic.
- */
+
 class TagManager
 {
+    protected $db;
+
     public function __construct()
     {
-        echo "class access";
+        global $db;
+        $this->db = $db;
     }
-}
+
+    /**
+     * Assign tags to a page.
+     *
+     * This will delete old links and insert new ones.
+     *
+     * @param int   $pageId
+     * @param array $tags Array of tag names
+     */
+    public function setTagsForPage(int $pageId, array $tags): void
+    {
+        // Remove existing links
+        $this->db->query("DELETE FROM page_tags WHERE page_id = ?", [$pageId]);
+
+        foreach ($tags as $tagName) {
+            $tagName = trim($tagName);
+            if ($tagName === '') continue;
+
+            // Check if tag exists
+            $stmt = $this->db->query("SELECT id FROM tags WHERE name = ?", [$tagName]);
+            $row = $stmt->fetch_assoc(); // mysqli_result -> assoc array
+            if ($row) {
+                $tagId = $row['id'];
+            } else {
+                // Insert new tag
+                $this->db->query(
+                    "INSERT INTO tags (name, created) VALUES (?, NOW())",
+                    [$tagName]
+                );
+                $tagId = $this->db->lastid;
+            }
+
+            // Link page to tag
+            $this->db->query(
+                "INSERT INTO page_tags (page_id, tag_id) VALUES (?, ?)",
+                [$pageId, $tagId]
+            );
+        }
+    }
+}