feat: Add edit functionality for marketing files and update handling

assets/marketing.js

@@ -100,6 +100,11 @@ class MarketingFileManager {
                 this.deleteFile(this.selectedFile);
             }
         });
+        
+        // Save edit
+        document.getElementById('saveEdit')?.addEventListener('click', () => {
+            this.saveEdit();
+        });
     }
     
     bindUploadEvents() {
@@ -359,6 +364,9 @@ class MarketingFileManager {
                     <button class="download-btn" title="Download">
                         <i class="fa fa-download"></i>
                     </button>
+                    <button class="edit-btn" title="Edit">
+                        <i class="fa fa-edit"></i>
+                    </button>
                 </div>
             </div>
             <div class="file-info">
@@ -385,6 +393,10 @@ class MarketingFileManager {
             this.downloadFile(file);
         });
         
+        fileElement.querySelector('.edit-btn').addEventListener('click', () => {
+            this.editFile(file);
+        });
+        
         fileElement.addEventListener('dblclick', () => {
             this.previewFile(file);
         });
@@ -870,6 +882,96 @@ class MarketingFileManager {
         return iconMap[fileType.toLowerCase()] || 'fa-file';
     }
     
+    // Edit file functionality
+    editFile(file) {
+        this.selectedFile = file;
+        this.showEditModal();
+        this.populateEditModal(file);
+    }
+    
+    showEditModal() {
+        const modal = document.getElementById('editModal');
+        if (modal) {
+            this.showModal(modal);
+        }
+    }
+    
+    populateEditModal(file) {
+        // Populate title
+        const titleInput = document.getElementById('editTitle');
+        if (titleInput) {
+            titleInput.value = file.title || '';
+        }
+        
+        // Populate folder select
+        const folderSelect = document.getElementById('editFolder');
+        if (folderSelect) {
+            folderSelect.innerHTML = '<option value="">Root Folder</option>';
+            this.addFolderOptions(folderSelect, this.folders);
+            
+            // Select current folder
+            if (file.folder_id) {
+                folderSelect.value = file.folder_id;
+            }
+        }
+        
+        // Populate tags
+        const tagsInput = document.getElementById('editTags');
+        if (tagsInput) {
+            tagsInput.value = file.tags ? file.tags.join(', ') : '';
+        }
+    }
+    
+    saveEdit() {
+        if (!this.selectedFile) return;
+        
+        const title = document.getElementById('editTitle').value.trim();
+        const folderId = document.getElementById('editFolder').value;
+        const tags = document.getElementById('editTags').value.trim();
+        
+        // Prepare update data
+        const updateData = {
+            file_id: this.selectedFile.id,
+            title: title || null,
+            folder_id: folderId || null,
+            tags: tags ? tags.split(',').map(tag => tag.trim()).filter(tag => tag) : []
+        };
+        
+        // Show loading state
+        const saveBtn = document.getElementById('saveEdit');
+        const originalText = saveBtn.innerHTML;
+        saveBtn.innerHTML = '<i class="fa fa-spinner fa-spin"></i> Saving...';
+        saveBtn.disabled = true;
+        
+        // Send update request
+        fetch('./marketing.php?action=update_file', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+            },
+            body: JSON.stringify(updateData)
+        })
+        .then(response => response.json())
+        .then(data => {
+            if (data.success) {
+                this.showToast('File updated successfully!', 'success');
+                this.closeModal(document.getElementById('editModal'));
+                this.loadFiles(); // Reload to show changes
+            } else {
+                throw new Error(data.message || 'Failed to update file');
+            }
+        })
+        .catch(error => {
+            console.error('Update error:', error);
+            this.showToast('Error updating file: ' + error.message, 'error');
+        })
+        .finally(() => {
+            // Restore button state
+            saveBtn.innerHTML = originalText;
+            saveBtn.disabled = false;
+        });
+    }
+    
     updateQueueItem(index, item) {
         const queueItems = document.querySelectorAll('.upload-item');
         if (queueItems[index]) {