feat: add toast notifications for file actions

frontend/src/components/FileExplorer.tsx

@@ -7,7 +7,8 @@ import {
   ChevronRight, Grid3X3, List, Plus, Upload, LogOut,
   MoreVertical, Star, Download, Pencil, Copy, Move,
   FolderPlus, ArrowUp, X, Check, RefreshCw, Info, Link as LinkIcon, Image as ImageIcon, Film as FilmIcon,
-  Sun, Moon, Music as MusicIcon, Code as CodeIcon, Archive as ArchiveIcon, CornerDownRight
+  Sun, Moon, Music as MusicIcon, Code as CodeIcon, Archive as ArchiveIcon, CornerDownRight,
+  CheckCircle, AlertCircle
 } from 'lucide-react';
 import api from '@/lib/api';
 
@@ -105,6 +106,12 @@ interface UploadProgress {
   error?: string;
 }
 
+interface Toast {
+  id: number;
+  message: string;
+  type?: 'success' | 'error' | 'info';
+}
+
 function getFileDisplayName(name: string, isDir: boolean) {
   if (isDir) return name;
   const dotIndex = name.lastIndexOf('.');
@@ -236,6 +243,15 @@ export default function FileExplorer({ onLogout }: FileExplorerProps) {
   const [sortAsc, setSortAsc] = useState(true);
   const [draggedFile, setDraggedFile] = useState<string | null>(null);
   const [uploads, setUploads] = useState<UploadProgress[]>([]);
+  const [toasts, setToasts] = useState<Toast[]>([]);
+
+  function showToast(message: string, type: 'success' | 'error' | 'info' = 'success') {
+    const id = Date.now() + Math.random();
+    setToasts(prev => [...prev, { id, message, type }]);
+    setTimeout(() => {
+      setToasts(prev => prev.filter(t => t.id !== id));
+    }, 3000);
+  }
   const [showTrashModal, setShowTrashModal] = useState(false);
   const [showMoveModal, setShowMoveModal] = useState(false);
   const [movingFiles, setMovingFiles] = useState<string[]>([]);
@@ -599,17 +615,21 @@ export default function FileExplorer({ onLogout }: FileExplorerProps) {
 
   async function deleteSelected() {
     if (selectedFiles.size === 0) return;
+    if (!confirm(`Move ${selectedFiles.size} items to trash?`)) return;
+    const count = selectedFiles.size;
     for (const path of selectedFiles) {
       await api.deleteFile(path);
     }
     setSelectedFiles(new Set());
-    loadFiles();
+    loadFiles(undefined, true);
+    showToast(`Deleted ${count} item${count > 1 ? 's' : ''}`);
   }
 
   async function handlePin(file: FileItem) {
     await api.togglePin(file.path);
     loadFiles(undefined, true);
     setPinnedRefreshCounter(c => c + 1);
+    showToast(file.is_pinned ? 'Unpinned item' : 'Pinned item');
   }
 
   async function handleRename(path: string, originalName: string, isDir: boolean) {
@@ -629,6 +649,7 @@ export default function FileExplorer({ onLogout }: FileExplorerProps) {
     setRenaming(null);
     setNewName('');
     loadFiles(undefined, true);
+    showToast(`Renamed to ${finalName}`);
   }
 
   async function handleCreateFolder() {
@@ -643,11 +664,13 @@ export default function FileExplorer({ onLogout }: FileExplorerProps) {
   async function handleRestore(file: FileItem) {
     await api.restoreFromTrash(file.path);
     loadTrash();
+    showToast(`Restored ${file.name}`);
   }
 
   async function handleEmptyTrash() {
     await api.emptyTrash();
     loadTrash();
+    showToast('Trash emptied');
   }
 
   async function handleMoveExecute() {
@@ -658,6 +681,7 @@ export default function FileExplorer({ onLogout }: FileExplorerProps) {
       setMovingFiles([]);
       loadFiles(undefined, true);
       setSelectedFiles(new Set());
+      showToast(`Moved ${movingFiles.length} item${movingFiles.length > 1 ? 's' : ''}`);
     } catch (err) {
       console.error(err);
     }
@@ -706,6 +730,7 @@ export default function FileExplorer({ onLogout }: FileExplorerProps) {
     try {
       await api.move(sourcePath, file.path);
       loadFiles(undefined, true);
+      showToast('Item moved');
     } catch (err) {
       console.error(err);
     }
@@ -1553,15 +1578,7 @@ export default function FileExplorer({ onLogout }: FileExplorerProps) {
               <button
                 className="p-2 hover:bg-red-500/10 rounded-lg transition-colors flex items-center gap-2 text-sm text-red-500"
                 title="Delete Selected"
-                onClick={async () => {
-                  if (confirm(`Move ${selectedFiles.size} items to trash?`)) {
-                    for (const path of Array.from(selectedFiles)) {
-                      await api.deleteFile(path).catch(() => {});
-                    }
-                    setSelectedFiles(new Set());
-                    loadFiles(undefined, true);
-                  }
-                }}
+                onClick={() => deleteSelected()}
               >
                 <Trash2 className="w-4 h-4" />
               </button>
@@ -1676,8 +1693,13 @@ export default function FileExplorer({ onLogout }: FileExplorerProps) {
                   label="Move to Trash"
                   danger
                   onClick={() => {
+                    if (confirm(`Move ${contextMenu.file.name} to trash?`)) {
+                      api.deleteFile(contextMenu.file.path).then(() => {
+                        loadFiles(undefined, true);
+                        showToast(`Deleted ${contextMenu.file.name}`);
+                      });
+                    }
                     setContextMenu(null);
-                    api.deleteFile(contextMenu.file.path).then(() => loadFiles(undefined, true));
                   }}
                 />
               </>
@@ -1716,6 +1738,30 @@ export default function FileExplorer({ onLogout }: FileExplorerProps) {
         )}
       </AnimatePresence>
 
+      {/* Toast Notifications */}
+      <div className="fixed bottom-6 right-6 z-[60] flex flex-col gap-2 pointer-events-none">
+        <AnimatePresence>
+          {toasts.map(toast => (
+            <motion.div
+              key={toast.id}
+              initial={{ opacity: 0, y: 20, scale: 0.95 }}
+              animate={{ opacity: 1, y: 0, scale: 1 }}
+              exit={{ opacity: 0, y: -20, scale: 0.95 }}
+              className="px-4 py-3 rounded-xl shadow-xl flex items-center gap-3 backdrop-blur-md border border-white/10 pointer-events-auto"
+              style={{ 
+                backgroundColor: toast.type === 'error' ? 'rgba(239, 68, 68, 0.9)' : 'var(--color-bg-elevated)',
+                color: toast.type === 'error' ? 'white' : 'var(--color-text-primary)'
+              }}
+            >
+              {toast.type === 'success' && <CheckCircle className="w-5 h-5 text-green-500" />}
+              {toast.type === 'error' && <AlertCircle className="w-5 h-5 text-white" />}
+              {toast.type === 'info' && <Info className="w-5 h-5 text-blue-500" />}
+              <span className="font-medium text-sm">{toast.message}</span>
+            </motion.div>
+          ))}
+        </AnimatePresence>
+      </div>
+
       {/* Upload Progress Panel */}
       <AnimatePresence>
         {uploads.length > 0 && (