Merge pull request #127 from R0m1k3/claude/fix-notes-sync-issue-01AMeEdrKQErsM7bvhKkqEEF

Claude/fix notes sync issue 01 a me edr kq ers m7bvh kkq eef

migrations/003_add_due_date_to_todos.sql

@@ -0,0 +1,11 @@
+-- Migration: Add due_date to note_todos table
+-- Description: Adds a due_date column to track task deadlines
+
+-- Add due_date column to note_todos table
+ALTER TABLE note_todos ADD COLUMN IF NOT EXISTS due_date TIMESTAMPTZ;
+
+-- Create index on due_date for faster queries
+CREATE INDEX IF NOT EXISTS idx_note_todos_due_date ON note_todos(due_date);
+
+-- Create index on combination of completed and due_date for efficient queries of pending tasks
+CREATE INDEX IF NOT EXISTS idx_note_todos_completed_due_date ON note_todos(completed, due_date);

migrations/004_add_due_date_to_global_todos.sql

@@ -0,0 +1,11 @@
+-- Migration: Add due_date to global_todos table
+-- Description: Adds a due_date column to track task deadlines for global todos
+
+-- Add due_date column to global_todos table
+ALTER TABLE global_todos ADD COLUMN IF NOT EXISTS due_date TIMESTAMPTZ;
+
+-- Create index on due_date for faster queries
+CREATE INDEX IF NOT EXISTS idx_global_todos_due_date ON global_todos(due_date);
+
+-- Create index on combination of completed and due_date for efficient queries of pending tasks
+CREATE INDEX IF NOT EXISTS idx_global_todos_completed_due_date ON global_todos(completed, due_date);

migrations/005_add_subtasks_support.sql

@@ -0,0 +1,16 @@
+-- Migration: Add subtasks support to todos tables
+-- Description: Adds parent_id column to enable hierarchical task structure
+
+-- Add parent_id column to note_todos table (note todos)
+ALTER TABLE note_todos ADD COLUMN IF NOT EXISTS parent_id INTEGER REFERENCES note_todos(id) ON DELETE CASCADE;
+
+-- Add parent_id column to global_todos table
+ALTER TABLE global_todos ADD COLUMN IF NOT EXISTS parent_id INTEGER REFERENCES global_todos(id) ON DELETE CASCADE;
+
+-- Create indexes for faster subtask queries
+CREATE INDEX IF NOT EXISTS idx_note_todos_parent_id ON note_todos(parent_id);
+CREATE INDEX IF NOT EXISTS idx_global_todos_parent_id ON global_todos(parent_id);
+
+-- Add level column to track depth (optional, for UI optimization)
+ALTER TABLE note_todos ADD COLUMN IF NOT EXISTS level INTEGER DEFAULT 0;
+ALTER TABLE global_todos ADD COLUMN IF NOT EXISTS level INTEGER DEFAULT 0;

routes/notes.routes.js

@@ -61,7 +61,7 @@ router.get('/', async (req, res) => {
     // Charger les todos, images, fichiers et tags pour chaque note
     for (const note of notes) {
       const todos = await getAll(`
-        SELECT id, text, completed, position
+        SELECT id, text, completed, position, parent_id, level
         FROM note_todos
         WHERE note_id = $1
         ORDER BY position ASC, id ASC
@@ -391,10 +391,13 @@ router.delete('/:id/image', async (req, res) => {
 
 /**
  * POST /api/notes/:id/todos
- * Ajouter un todo à une note
+ * Ajouter un todo à une note (supports subtasks via parent_id)
  */
 router.post('/:id/todos',
-  [body('text').trim().notEmpty().withMessage('Le texte est requis')],
+  [
+    body('text').trim().notEmpty().withMessage('Le texte est requis'),
+    body('parent_id').optional().isInt()
+  ],
   async (req, res) => {
     try {
       const errors = validationResult(req);
@@ -408,17 +411,27 @@ router.post('/:id/todos',
         return res.status(404).json({ error: 'Note non trouvée' });
       }
 
-      const { text } = req.body;
+      const { text, parent_id } = req.body;
+      let level = 0;
 
-      logger.info(`[CREATE TODO] Ajout todo à note ${req.params.id}: "${text}"`);
+      // Si c'est un subtask, vérifier que le parent existe et calculer le niveau
+      if (parent_id) {
+        const parent = await getOne('SELECT id, level FROM note_todos WHERE id = $1 AND note_id = $2', [parent_id, req.params.id]);
+        if (!parent) {
+          return res.status(404).json({ error: 'Todo parent non trouvé' });
+        }
+        level = (parent.level || 0) + 1;
+      }
+
+      logger.info(`[CREATE TODO] Ajout todo à note ${req.params.id}: "${text}"${parent_id ? ` (subtask of ${parent_id})` : ''}`);
 
       const result = await runQuery(`
-        INSERT INTO note_todos (note_id, text, position)
-        VALUES ($1, $2, (SELECT COALESCE(MAX(position), 0) + 1 FROM note_todos WHERE note_id = $3))
+        INSERT INTO note_todos (note_id, text, parent_id, level, position)
+        VALUES ($1, $2, $3, $4, (SELECT COALESCE(MAX(position), 0) + 1 FROM note_todos WHERE note_id = $5 AND COALESCE(parent_id, 0) = COALESCE($6, 0)))
         RETURNING *
-      `, [req.params.id, text, req.params.id]);
+      `, [req.params.id, text, parent_id || null, level, req.params.id, parent_id || null]);
 
-      logger.info(`[CREATE TODO] Todo créé - ID: ${result.id}, note_id: ${req.params.id}`);
+      logger.info(`[CREATE TODO] Todo créé - ID: ${result.id}, note_id: ${req.params.id}, level: ${level}`);
 
       await runQuery('UPDATE notes SET updated_at = CURRENT_TIMESTAMP WHERE id = $1', [req.params.id]);
 
@@ -426,7 +439,9 @@ router.post('/:id/todos',
         id: result.id,
         text,
         completed: false,
-        position: 0
+        position: result.position || 0,
+        parent_id: parent_id || null,
+        level: level
       });
     } catch (error) {
       logger.error('Erreur lors de l\'ajout du todo:', error);

routes/todos.routes.js

@@ -19,7 +19,7 @@ router.get('/', async (req, res) => {
     // Essayer d'abord avec le champ priority (nouvelle version)
     try {
       const todos = await getAll(`
-        SELECT id, text, completed, priority, in_progress, created_at
+        SELECT id, text, completed, priority, in_progress, parent_id, level, created_at
         FROM global_todos
         WHERE user_id = $1
         ORDER BY priority DESC, created_at DESC
@@ -38,7 +38,7 @@ router.get('/', async (req, res) => {
       `, [req.user.id]);
 
       // Ajouter priority=false et in_progress=false par défaut pour compatibilité frontend
-      const todosWithPriority = todos.map(t => ({ ...t, priority: false, in_progress: false }));
+      const todosWithPriority = todos.map(t => ({ ...t, priority: false, in_progress: false, parent_id: null, level: 0 }));
       res.json(todosWithPriority);
     }
   } catch (error) {
@@ -49,10 +49,13 @@ router.get('/', async (req, res) => {
 
 /**
  * POST /api/todos
- * Créer un nouveau todo global
+ * Créer un nouveau todo global (supports subtasks via parent_id)
  */
 router.post('/',
-  [body('text').trim().notEmpty().withMessage('Le texte est requis')],
+  [
+    body('text').trim().notEmpty().withMessage('Le texte est requis'),
+    body('parent_id').optional().isInt()
+  ],
   async (req, res) => {
     try {
       const errors = validationResult(req);
@@ -60,17 +63,27 @@ router.post('/',
         return res.status(400).json({ error: 'Données invalides', details: errors.array() });
       }
 
-      const { text } = req.body;
+      const { text, parent_id } = req.body;
+      let level = 0;
 
-      logger.info(`[CREATE GLOBAL TODO] Début création - user_id: ${req.user.id}, text: "${text}"`);
+      // Si c'est un subtask, vérifier que le parent existe et calculer le niveau
+      if (parent_id) {
+        const parent = await getOne('SELECT id, level FROM global_todos WHERE id = $1 AND user_id = $2', [parent_id, req.user.id]);
+        if (!parent) {
+          return res.status(404).json({ error: 'Todo parent non trouvé' });
+        }
+        level = (parent.level || 0) + 1;
+      }
+
+      logger.info(`[CREATE GLOBAL TODO] Début création - user_id: ${req.user.id}, text: "${text}"${parent_id ? ` (subtask of ${parent_id})` : ''}`);
 
       const result = await runQuery(`
-        INSERT INTO global_todos (user_id, text)
-        VALUES ($1, $2)
+        INSERT INTO global_todos (user_id, text, parent_id, level)
+        VALUES ($1, $2, $3, $4)
         RETURNING *
-      `, [req.user.id, text]);
+      `, [req.user.id, text, parent_id || null, level]);
 
-      logger.info(`[CREATE GLOBAL TODO] Todo global créé avec succès - ID: ${result.id}, user: ${req.user.username}`);
+      logger.info(`[CREATE GLOBAL TODO] Todo global créé avec succès - ID: ${result.id}, user: ${req.user.username}, level: ${level}`);
 
       res.status(201).json({
         id: result.id,
@@ -78,6 +91,8 @@ router.post('/',
         completed: false,
         priority: false,
         in_progress: false,
+        parent_id: parent_id || null,
+        level: level,
         created_at: new Date().toISOString()
       });
     } catch (error) {

src/App.tsx

@@ -75,7 +75,7 @@ const App = () => {
 
   return (
     <QueryClientProvider client={queryClient}>
-      <ThemeProvider defaultTheme="light" storageKey="notes-theme">
+      <ThemeProvider defaultTheme="system" storageKey="notes-theme">
         <TooltipProvider>
           <BrowserRouter>
             <Routes>

src/components/AdvancedSearch.tsx

@@ -0,0 +1,283 @@
+import { useState } from "react";
+import { Button } from "@/components/ui/button";
+import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover";
+import { Label } from "@/components/ui/label";
+import { Checkbox } from "@/components/ui/checkbox";
+import { Badge } from "@/components/ui/badge";
+import { Calendar } from "@/components/ui/calendar";
+import { SlidersHorizontal, X, Calendar as CalendarIcon, Tag as TagIcon } from "lucide-react";
+import { Command, CommandEmpty, CommandGroup, CommandInput, CommandItem, CommandList } from "@/components/ui/command";
+
+export interface SearchFilters {
+  tags: string[]; // Tag names
+  dateFrom?: Date;
+  dateTo?: Date;
+  hasTodos?: boolean;
+  hasImages?: boolean;
+  hasFiles?: boolean;
+  priority?: boolean;
+}
+
+export interface TagOption {
+  id: number;
+  name: string;
+}
+
+interface AdvancedSearchProps {
+  filters: SearchFilters;
+  onFiltersChange: (filters: SearchFilters) => void;
+  availableTags: TagOption[];
+}
+
+export function AdvancedSearch({ filters, onFiltersChange, availableTags }: AdvancedSearchProps) {
+  const [open, setOpen] = useState(false);
+  const [datePickerOpen, setDatePickerOpen] = useState<'from' | 'to' | null>(null);
+  const [tagSelectorOpen, setTagSelectorOpen] = useState(false);
+
+  const hasActiveFilters = filters.tags.length > 0 ||
+    filters.dateFrom !== undefined ||
+    filters.dateTo !== undefined ||
+    filters.hasTodos !== undefined ||
+    filters.hasImages !== undefined ||
+    filters.hasFiles !== undefined ||
+    filters.priority !== undefined;
+
+  const clearFilters = () => {
+    onFiltersChange({
+      tags: [],
+      dateFrom: undefined,
+      dateTo: undefined,
+      hasTodos: undefined,
+      hasImages: undefined,
+      hasFiles: undefined,
+      priority: undefined
+    });
+  };
+
+  const toggleTag = (tagName: string) => {
+    const newTags = filters.tags.includes(tagName)
+      ? filters.tags.filter(name => name !== tagName)
+      : [...filters.tags, tagName];
+    onFiltersChange({ ...filters, tags: newTags });
+  };
+
+  const selectedTags = availableTags.filter(tag => filters.tags.includes(tag.name));
+
+  return (
+    <div className="flex items-center gap-2">
+      <Popover open={open} onOpenChange={setOpen}>
+        <PopoverTrigger asChild>
+          <Button variant="outline" size="sm" className="gap-2">
+            <SlidersHorizontal className="h-4 w-4" />
+            Filtres avancés
+            {hasActiveFilters && (
+              <Badge variant="secondary" className="ml-1 px-1.5">
+                {filters.tags.length +
+                  (filters.dateFrom ? 1 : 0) +
+                  (filters.dateTo ? 1 : 0) +
+                  (filters.hasTodos ? 1 : 0) +
+                  (filters.hasImages ? 1 : 0) +
+                  (filters.hasFiles ? 1 : 0) +
+                  (filters.priority ? 1 : 0)}
+              </Badge>
+            )}
+          </Button>
+        </PopoverTrigger>
+        <PopoverContent className="w-80" align="start">
+          <div className="space-y-4">
+            <div className="flex items-center justify-between">
+              <h4 className="font-medium text-sm">Filtres avancés</h4>
+              {hasActiveFilters && (
+                <Button
+                  variant="ghost"
+                  size="sm"
+                  onClick={clearFilters}
+                  className="h-auto p-0 text-xs text-muted-foreground hover:text-foreground"
+                >
+                  Réinitialiser
+                </Button>
+              )}
+            </div>
+
+            {/* Tags Filter */}
+            <div className="space-y-2">
+              <Label className="text-xs font-medium">Tags</Label>
+              <Popover open={tagSelectorOpen} onOpenChange={setTagSelectorOpen}>
+                <PopoverTrigger asChild>
+                  <Button variant="outline" size="sm" className="w-full justify-start gap-2">
+                    <TagIcon className="h-4 w-4" />
+                    {selectedTags.length > 0 ? (
+                      <span className="text-xs">
+                        {selectedTags.length} tag{selectedTags.length > 1 ? 's' : ''} sélectionné{selectedTags.length > 1 ? 's' : ''}
+                      </span>
+                    ) : (
+                      <span className="text-xs text-muted-foreground">Sélectionner des tags</span>
+                    )}
+                  </Button>
+                </PopoverTrigger>
+                <PopoverContent className="w-60 p-0" align="start">
+                  <Command>
+                    <CommandInput placeholder="Rechercher un tag..." />
+                    <CommandList>
+                      <CommandEmpty>Aucun tag trouvé</CommandEmpty>
+                      <CommandGroup>
+                        {availableTags.map((tag) => (
+                          <CommandItem
+                            key={tag.id}
+                            onSelect={() => toggleTag(tag.name)}
+                            className="cursor-pointer"
+                          >
+                            <Checkbox
+                              checked={filters.tags.includes(tag.name)}
+                              className="mr-2"
+                            />
+                            <TagIcon className="h-3 w-3 mr-2" />
+                            {tag.name}
+                          </CommandItem>
+                        ))}
+                      </CommandGroup>
+                    </CommandList>
+                  </Command>
+                </PopoverContent>
+              </Popover>
+              {selectedTags.length > 0 && (
+                <div className="flex flex-wrap gap-1">
+                  {selectedTags.map((tag) => (
+                    <Badge key={tag.id} variant="secondary" className="text-xs gap-1">
+                      {tag.name}
+                      <X
+                        className="h-3 w-3 cursor-pointer"
+                        onClick={() => toggleTag(tag.name)}
+                      />
+                    </Badge>
+                  ))}
+                </div>
+              )}
+            </div>
+
+            {/* Date Range Filter */}
+            <div className="space-y-2">
+              <Label className="text-xs font-medium">Période</Label>
+              <div className="grid grid-cols-2 gap-2">
+                <Popover open={datePickerOpen === 'from'} onOpenChange={(open) => setDatePickerOpen(open ? 'from' : null)}>
+                  <PopoverTrigger asChild>
+                    <Button variant="outline" size="sm" className="justify-start text-xs">
+                      <CalendarIcon className="h-3 w-3 mr-2" />
+                      {filters.dateFrom ? filters.dateFrom.toLocaleDateString('fr-FR') : 'Du'}
+                    </Button>
+                  </PopoverTrigger>
+                  <PopoverContent className="w-auto p-0" align="start">
+                    <Calendar
+                      mode="single"
+                      selected={filters.dateFrom}
+                      onSelect={(date) => {
+                        onFiltersChange({ ...filters, dateFrom: date });
+                        setDatePickerOpen(null);
+                      }}
+                      initialFocus
+                    />
+                  </PopoverContent>
+                </Popover>
+                <Popover open={datePickerOpen === 'to'} onOpenChange={(open) => setDatePickerOpen(open ? 'to' : null)}>
+                  <PopoverTrigger asChild>
+                    <Button variant="outline" size="sm" className="justify-start text-xs">
+                      <CalendarIcon className="h-3 w-3 mr-2" />
+                      {filters.dateTo ? filters.dateTo.toLocaleDateString('fr-FR') : 'Au'}
+                    </Button>
+                  </PopoverTrigger>
+                  <PopoverContent className="w-auto p-0" align="start">
+                    <Calendar
+                      mode="single"
+                      selected={filters.dateTo}
+                      onSelect={(date) => {
+                        onFiltersChange({ ...filters, dateTo: date });
+                        setDatePickerOpen(null);
+                      }}
+                      initialFocus
+                    />
+                  </PopoverContent>
+                </Popover>
+              </div>
+              {(filters.dateFrom || filters.dateTo) && (
+                <Button
+                  variant="ghost"
+                  size="sm"
+                  onClick={() => onFiltersChange({ ...filters, dateFrom: undefined, dateTo: undefined })}
+                  className="h-auto p-0 text-xs text-muted-foreground hover:text-foreground"
+                >
+                  Effacer les dates
+                </Button>
+              )}
+            </div>
+
+            {/* Content Type Filters */}
+            <div className="space-y-2">
+              <Label className="text-xs font-medium">Contenu</Label>
+              <div className="space-y-2">
+                <div className="flex items-center space-x-2">
+                  <Checkbox
+                    id="hasTodos"
+                    checked={filters.hasTodos === true}
+                    onCheckedChange={(checked) =>
+                      onFiltersChange({ ...filters, hasTodos: checked ? true : undefined })
+                    }
+                  />
+                  <label htmlFor="hasTodos" className="text-xs cursor-pointer">
+                    Avec des tâches
+                  </label>
+                </div>
+                <div className="flex items-center space-x-2">
+                  <Checkbox
+                    id="hasImages"
+                    checked={filters.hasImages === true}
+                    onCheckedChange={(checked) =>
+                      onFiltersChange({ ...filters, hasImages: checked ? true : undefined })
+                    }
+                  />
+                  <label htmlFor="hasImages" className="text-xs cursor-pointer">
+                    Avec des images
+                  </label>
+                </div>
+                <div className="flex items-center space-x-2">
+                  <Checkbox
+                    id="hasFiles"
+                    checked={filters.hasFiles === true}
+                    onCheckedChange={(checked) =>
+                      onFiltersChange({ ...filters, hasFiles: checked ? true : undefined })
+                    }
+                  />
+                  <label htmlFor="hasFiles" className="text-xs cursor-pointer">
+                    Avec des fichiers
+                  </label>
+                </div>
+              </div>
+            </div>
+
+            {/* Priority Filter */}
+            <div className="space-y-2">
+              <div className="flex items-center space-x-2">
+                <Checkbox
+                  id="priority"
+                  checked={filters.priority === true}
+                  onCheckedChange={(checked) =>
+                    onFiltersChange({ ...filters, priority: checked ? true : undefined })
+                  }
+                />
+                <label htmlFor="priority" className="text-xs cursor-pointer font-medium">
+                  Notes prioritaires uniquement
+                </label>
+              </div>
+            </div>
+          </div>
+        </PopoverContent>
+      </Popover>
+
+      {hasActiveFilters && (
+        <Button variant="ghost" size="sm" onClick={clearFilters} className="h-8 gap-1">
+          <X className="h-3 w-3" />
+          Effacer
+        </Button>
+      )}
+    </div>
+  );
+}

src/components/ExportImportModal.tsx

@@ -0,0 +1,255 @@
+import { useState } from "react";
+import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription } from "@/components/ui/dialog";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
+import { Badge } from "@/components/ui/badge";
+import { Alert, AlertDescription } from "@/components/ui/alert";
+import { Download, Upload, FileJson, FileSpreadsheet, AlertCircle, CheckCircle } from "lucide-react";
+import { Note } from "@/services/NotesService";
+import { Todo } from "@/services/TodosService";
+import {
+  exportToJSON,
+  downloadBackup,
+  downloadCSV,
+  exportNotesToCSV,
+  parseBackupJSON,
+  readFileAsText,
+  getBackupStats,
+  type BackupData
+} from "@/utils/exportImport";
+import { showSuccess, showError } from "@/utils/toast";
+
+interface ExportImportModalProps {
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+  notes: Note[];
+  todos: Todo[];
+  settings?: Record<string, any>;
+  onImport?: (backup: BackupData) => Promise<void>;
+}
+
+export function ExportImportModal({
+  open,
+  onOpenChange,
+  notes,
+  todos,
+  settings,
+  onImport
+}: ExportImportModalProps) {
+  const [importing, setImporting] = useState(false);
+  const [importFile, setImportFile] = useState<File | null>(null);
+  const [previewData, setPreviewData] = useState<BackupData | null>(null);
+
+  const handleExportJSON = async () => {
+    try {
+      const jsonData = await exportToJSON(notes, todos, settings);
+      downloadBackup(jsonData);
+      showSuccess('Backup exporté avec succès');
+    } catch (error) {
+      showError('Erreur lors de l\'export');
+    }
+  };
+
+  const handleExportCSV = () => {
+    try {
+      const csvData = exportNotesToCSV(notes);
+      downloadCSV(csvData);
+      showSuccess('CSV exporté avec succès');
+    } catch (error) {
+      showError('Erreur lors de l\'export CSV');
+    }
+  };
+
+  const handleFileSelect = async (e: React.ChangeEvent<HTMLInputElement>) => {
+    const file = e.target.files?.[0];
+    if (!file) return;
+
+    setImportFile(file);
+
+    try {
+      const content = await readFileAsText(file);
+      const backup = parseBackupJSON(content);
+
+      if (backup) {
+        setPreviewData(backup);
+      } else {
+        showError('Fichier de backup invalide');
+        setImportFile(null);
+      }
+    } catch (error) {
+      showError('Erreur lors de la lecture du fichier');
+      setImportFile(null);
+    }
+  };
+
+  const handleImport = async () => {
+    if (!previewData || !onImport) return;
+
+    setImporting(true);
+    try {
+      await onImport(previewData);
+      showSuccess('Données importées avec succès');
+      setImportFile(null);
+      setPreviewData(null);
+      onOpenChange(false);
+    } catch (error) {
+      showError('Erreur lors de l\'import');
+    } finally {
+      setImporting(false);
+    }
+  };
+
+  const stats = notes.length > 0 ? {
+    notesCount: notes.length,
+    archivedCount: notes.filter(n => n.archived).length,
+    priorityCount: notes.filter(n => n.priority).length,
+    todosCount: todos.length,
+    tagsCount: new Set(notes.flatMap(n => n.tags?.map(t => t.name) || [])).size
+  } : null;
+
+  const previewStats = previewData ? getBackupStats(previewData) : null;
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="max-w-2xl">
+        <DialogHeader>
+          <DialogTitle>Export / Import</DialogTitle>
+          <DialogDescription>
+            Exportez ou importez toutes vos données
+          </DialogDescription>
+        </DialogHeader>
+
+        <Tabs defaultValue="export">
+          <TabsList className="grid grid-cols-2 w-full">
+            <TabsTrigger value="export">Export</TabsTrigger>
+            <TabsTrigger value="import">Import</TabsTrigger>
+          </TabsList>
+
+          <TabsContent value="export" className="space-y-4">
+            {/* Current Data Stats */}
+            {stats && (
+              <div className="grid grid-cols-3 gap-4">
+                <div className="p-4 border rounded-lg">
+                  <div className="text-2xl font-bold">{stats.notesCount}</div>
+                  <div className="text-xs text-muted-foreground">Notes</div>
+                </div>
+                <div className="p-4 border rounded-lg">
+                  <div className="text-2xl font-bold">{stats.todosCount}</div>
+                  <div className="text-xs text-muted-foreground">Tâches</div>
+                </div>
+                <div className="p-4 border rounded-lg">
+                  <div className="text-2xl font-bold">{stats.tagsCount}</div>
+                  <div className="text-xs text-muted-foreground">Tags</div>
+                </div>
+              </div>
+            )}
+
+            {/* Export Options */}
+            <div className="space-y-3">
+              <div>
+                <Label className="text-sm font-medium mb-2 block">Format JSON (Backup complet)</Label>
+                <Button onClick={handleExportJSON} className="w-full" variant="outline">
+                  <FileJson className="h-4 w-4 mr-2" />
+                  Exporter en JSON
+                </Button>
+                <p className="text-xs text-muted-foreground mt-1">
+                  Inclut toutes les notes, tâches, tags, et paramètres
+                </p>
+              </div>
+
+              <div>
+                <Label className="text-sm font-medium mb-2 block">Format CSV (Notes uniquement)</Label>
+                <Button onClick={handleExportCSV} className="w-full" variant="outline">
+                  <FileSpreadsheet className="h-4 w-4 mr-2" />
+                  Exporter en CSV
+                </Button>
+                <p className="text-xs text-muted-foreground mt-1">
+                  Tableau des notes pour Excel ou Google Sheets
+                </p>
+              </div>
+            </div>
+
+            <Alert>
+              <Download className="h-4 w-4" />
+              <AlertDescription>
+                Les fichiers seront téléchargés dans votre dossier de téléchargements
+              </AlertDescription>
+            </Alert>
+          </TabsContent>
+
+          <TabsContent value="import" className="space-y-4">
+            {/* File Upload */}
+            <div>
+              <Label htmlFor="import-file" className="text-sm font-medium mb-2 block">
+                Sélectionner un fichier de backup (JSON)
+              </Label>
+              <Input
+                id="import-file"
+                type="file"
+                accept=".json"
+                onChange={handleFileSelect}
+              />
+            </div>
+
+            {/* Preview */}
+            {previewData && previewStats && (
+              <div className="space-y-3">
+                <div className="flex items-center gap-2">
+                  <CheckCircle className="h-4 w-4 text-green-500" />
+                  <span className="text-sm font-medium">Backup valide</span>
+                  <Badge variant="outline">{previewData.version}</Badge>
+                </div>
+
+                <div className="grid grid-cols-3 gap-4">
+                  <div className="p-3 border rounded-lg">
+                    <div className="text-xl font-bold">{previewStats.notesCount}</div>
+                    <div className="text-xs text-muted-foreground">Notes</div>
+                  </div>
+                  <div className="p-3 border rounded-lg">
+                    <div className="text-xl font-bold">{previewStats.todosCount}</div>
+                    <div className="text-xs text-muted-foreground">Tâches</div>
+                  </div>
+                  <div className="p-3 border rounded-lg">
+                    <div className="text-xl font-bold">{previewStats.tagsCount}</div>
+                    <div className="text-xs text-muted-foreground">Tags</div>
+                  </div>
+                </div>
+
+                <Alert>
+                  <AlertCircle className="h-4 w-4" />
+                  <AlertDescription>
+                    Créé le {new Date(previewData.exportDate).toLocaleDateString('fr-FR')}
+                  </AlertDescription>
+                </Alert>
+
+                <Button
+                  onClick={handleImport}
+                  disabled={importing || !onImport}
+                  className="w-full"
+                >
+                  <Upload className="h-4 w-4 mr-2" />
+                  {importing ? 'Import en cours...' : 'Importer les données'}
+                </Button>
+
+                {!onImport && (
+                  <p className="text-xs text-muted-foreground text-center">
+                    La fonction d'import n'est pas disponible
+                  </p>
+                )}
+              </div>
+            )}
+
+            {!previewData && !importFile && (
+              <div className="text-center py-8 text-muted-foreground">
+                <Upload className="h-12 w-12 mx-auto mb-2 opacity-50" />
+                <p>Sélectionnez un fichier de backup pour commencer</p>
+              </div>
+            )}
+          </TabsContent>
+        </Tabs>
+      </DialogContent>
+    </Dialog>
+  );
+}

src/components/KanbanBoard.tsx

@@ -0,0 +1,196 @@
+import { useState } from "react";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { Badge } from "@/components/ui/badge";
+import { ScrollArea } from "@/components/ui/scroll-area";
+import { CheckSquare, Image as ImageIcon, Paperclip, Tag as TagIcon, Plus, GripVertical } from "lucide-react";
+import { Note } from "@/services/NotesService";
+
+interface KanbanColumn {
+  id: string;
+  title: string;
+  color: string;
+}
+
+const DEFAULT_COLUMNS: KanbanColumn[] = [
+  { id: 'backlog', title: 'Backlog', color: 'bg-gray-100 dark:bg-gray-800' },
+  { id: 'todo', title: 'À faire', color: 'bg-blue-100 dark:bg-blue-900' },
+  { id: 'in_progress', title: 'En cours', color: 'bg-yellow-100 dark:bg-yellow-900' },
+  { id: 'review', title: 'En révision', color: 'bg-purple-100 dark:bg-purple-900' },
+  { id: 'done', title: 'Terminé', color: 'bg-green-100 dark:bg-green-900' },
+];
+
+interface KanbanBoardProps {
+  notes: Note[];
+  onNoteClick: (note: Note) => void;
+  onCreateNote: (columnId: string) => void;
+  onMoveNote?: (noteId: number, newStatus: string) => void;
+}
+
+export function KanbanBoard({ notes, onNoteClick, onCreateNote, onMoveNote }: KanbanBoardProps) {
+  const [draggedNote, setDraggedNote] = useState<Note | null>(null);
+  const [dragOverColumn, setDragOverColumn] = useState<string | null>(null);
+
+  // Group notes by their kanban_status tag or default to 'backlog'
+  const getNoteStatus = (note: Note): string => {
+    const statusTag = note.tags?.find(tag =>
+      DEFAULT_COLUMNS.some(col => col.id === tag.name.toLowerCase())
+    );
+    return statusTag?.name.toLowerCase() || 'backlog';
+  };
+
+  const notesByColumn = DEFAULT_COLUMNS.reduce((acc, column) => {
+    acc[column.id] = notes.filter(note =>
+      !note.archived && getNoteStatus(note) === column.id
+    );
+    return acc;
+  }, {} as Record<string, Note[]>);
+
+  const handleDragStart = (note: Note) => {
+    setDraggedNote(note);
+  };
+
+  const handleDragOver = (e: React.DragEvent, columnId: string) => {
+    e.preventDefault();
+    setDragOverColumn(columnId);
+  };
+
+  const handleDragLeave = () => {
+    setDragOverColumn(null);
+  };
+
+  const handleDrop = (e: React.DragEvent, columnId: string) => {
+    e.preventDefault();
+    setDragOverColumn(null);
+
+    if (draggedNote && onMoveNote && getNoteStatus(draggedNote) !== columnId) {
+      onMoveNote(draggedNote.id!, columnId);
+    }
+    setDraggedNote(null);
+  };
+
+  const handleDragEnd = () => {
+    setDraggedNote(null);
+    setDragOverColumn(null);
+  };
+
+  return (
+    <div className="flex gap-4 h-full overflow-x-auto pb-4">
+      {DEFAULT_COLUMNS.map((column) => (
+        <div
+          key={column.id}
+          className="flex-shrink-0 w-80"
+          onDragOver={(e) => handleDragOver(e, column.id)}
+          onDragLeave={handleDragLeave}
+          onDrop={(e) => handleDrop(e, column.id)}
+        >
+          <Card className={`h-full flex flex-col ${dragOverColumn === column.id ? 'ring-2 ring-primary' : ''}`}>
+            <CardHeader className="pb-3">
+              <div className="flex items-center justify-between">
+                <CardTitle className="text-sm font-medium flex items-center gap-2">
+                  <div className={`w-3 h-3 rounded-full ${column.color}`} />
+                  {column.title}
+                  <Badge variant="secondary" className="ml-1">
+                    {notesByColumn[column.id]?.length || 0}
+                  </Badge>
+                </CardTitle>
+                <Button
+                  size="sm"
+                  variant="ghost"
+                  onClick={() => onCreateNote(column.id)}
+                  className="h-7 w-7 p-0"
+                >
+                  <Plus className="h-4 w-4" />
+                </Button>
+              </div>
+            </CardHeader>
+            <CardContent className="flex-1 pt-0">
+              <ScrollArea className="h-[calc(100vh-250px)]">
+                <div className="space-y-2 pr-4">
+                  {notesByColumn[column.id]?.map((note) => (
+                    <div
+                      key={note.id}
+                      draggable
+                      onDragStart={() => handleDragStart(note)}
+                      onDragEnd={handleDragEnd}
+                      onClick={() => onNoteClick(note)}
+                      className={`p-3 border rounded-lg cursor-move hover:shadow-md transition-all group ${
+                        draggedNote?.id === note.id ? 'opacity-50' : ''
+                      } ${note.priority ? 'border-l-4 border-l-red-500' : ''}`}
+                    >
+                      <div className="flex items-start gap-2 mb-2">
+                        <GripVertical className="h-4 w-4 text-muted-foreground opacity-0 group-hover:opacity-100 transition-opacity flex-shrink-0 mt-0.5" />
+                        <div className="flex-1 min-w-0">
+                          <h4 className="font-medium text-sm line-clamp-2 mb-1">
+                            {note.title || "Sans titre"}
+                          </h4>
+                          {note.content && (
+                            <p className="text-xs text-muted-foreground line-clamp-2">
+                              {note.content.replace(/<[^>]*>/g, '')}
+                            </p>
+                          )}
+                        </div>
+                      </div>
+
+                      {/* Metadata badges */}
+                      <div className="flex flex-wrap gap-1 mt-2">
+                        {note.todos && note.todos.length > 0 && (
+                          <Badge variant="secondary" className="text-xs h-5">
+                            <CheckSquare className="h-3 w-3 mr-1" />
+                            {note.todos.filter(t => t.completed).length}/{note.todos.length}
+                          </Badge>
+                        )}
+                        {note.images && note.images.length > 0 && (
+                          <Badge variant="secondary" className="text-xs h-5">
+                            <ImageIcon className="h-3 w-3 mr-1" />
+                            {note.images.length}
+                          </Badge>
+                        )}
+                        {note.files && note.files.length > 0 && (
+                          <Badge variant="secondary" className="text-xs h-5">
+                            <Paperclip className="h-3 w-3 mr-1" />
+                            {note.files.length}
+                          </Badge>
+                        )}
+                        {note.tags && note.tags.length > 0 && (
+                          <div className="flex flex-wrap gap-1">
+                            {note.tags.slice(0, 2).map((tag) => (
+                              <Badge key={tag.id} variant="outline" className="text-xs h-5">
+                                <TagIcon className="h-2 w-2 mr-1" />
+                                {tag.name}
+                              </Badge>
+                            ))}
+                            {note.tags.length > 2 && (
+                              <Badge variant="outline" className="text-xs h-5">
+                                +{note.tags.length - 2}
+                              </Badge>
+                            )}
+                          </div>
+                        )}
+                      </div>
+
+                      {/* Date */}
+                      {note.updated_at && (
+                        <p className="text-xs text-muted-foreground mt-2">
+                          {new Date(note.updated_at).toLocaleDateString('fr-FR', {
+                            day: '2-digit',
+                            month: 'short'
+                          })}
+                        </p>
+                      )}
+                    </div>
+                  ))}
+                  {notesByColumn[column.id]?.length === 0 && (
+                    <div className="text-center py-8 text-muted-foreground text-sm">
+                      Aucune note
+                    </div>
+                  )}
+                </div>
+              </ScrollArea>
+            </CardContent>
+          </Card>
+        </div>
+      ))}
+    </div>
+  );
+}

src/components/KeyboardShortcutsHelp.tsx

@@ -0,0 +1,82 @@
+import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription } from "@/components/ui/dialog";
+import { Badge } from "@/components/ui/badge";
+import { ScrollArea } from "@/components/ui/scroll-area";
+import { Keyboard } from "lucide-react";
+import { type KeyboardShortcut, formatShortcut } from "@/hooks/useKeyboardShortcuts";
+
+interface KeyboardShortcutsHelpProps {
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+  shortcuts: KeyboardShortcut[];
+}
+
+export function KeyboardShortcutsHelp({ open, onOpenChange, shortcuts }: KeyboardShortcutsHelpProps) {
+  // Group shortcuts by category
+  const groupedShortcuts = shortcuts.reduce((acc, shortcut) => {
+    // Determine category based on description
+    let category = 'Général';
+
+    if (shortcut.description.toLowerCase().includes('note')) {
+      category = 'Notes';
+    } else if (shortcut.description.toLowerCase().includes('recherch')) {
+      category = 'Recherche';
+    } else if (shortcut.description.toLowerCase().includes('todo') || shortcut.description.toLowerCase().includes('tâche')) {
+      category = 'Tâches';
+    } else if (shortcut.description.toLowerCase().includes('navigation')) {
+      category = 'Navigation';
+    } else if (shortcut.description.toLowerCase().includes('édition') || shortcut.description.toLowerCase().includes('gras') || shortcut.description.toLowerCase().includes('italique')) {
+      category = 'Édition';
+    }
+
+    if (!acc[category]) {
+      acc[category] = [];
+    }
+    acc[category].push(shortcut);
+    return acc;
+  }, {} as Record<string, KeyboardShortcut[]>);
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="max-w-2xl">
+        <DialogHeader>
+          <DialogTitle className="flex items-center gap-2">
+            <Keyboard className="h-5 w-5" />
+            Raccourcis clavier
+          </DialogTitle>
+          <DialogDescription>
+            Utilisez ces raccourcis pour naviguer plus rapidement
+          </DialogDescription>
+        </DialogHeader>
+
+        <ScrollArea className="h-[500px] pr-4">
+          <div className="space-y-6">
+            {Object.entries(groupedShortcuts).map(([category, categoryShortcuts]) => (
+              <div key={category}>
+                <h3 className="text-sm font-semibold text-muted-foreground uppercase tracking-wide mb-3">
+                  {category}
+                </h3>
+                <div className="space-y-2">
+                  {categoryShortcuts.map((shortcut, index) => (
+                    <div
+                      key={index}
+                      className="flex items-center justify-between py-2 px-3 rounded-lg hover:bg-accent transition-colors"
+                    >
+                      <span className="text-sm">{shortcut.description}</span>
+                      <Badge variant="secondary" className="font-mono text-xs">
+                        {formatShortcut(shortcut)}
+                      </Badge>
+                    </div>
+                  ))}
+                </div>
+              </div>
+            ))}
+          </div>
+        </ScrollArea>
+
+        <div className="text-xs text-muted-foreground text-center pt-4 border-t">
+          Appuyez sur <Badge variant="outline" className="mx-1">?</Badge> pour afficher cette aide
+        </div>
+      </DialogContent>
+    </Dialog>
+  );
+}

src/components/PomodoroTimer.tsx

@@ -0,0 +1,197 @@
+import { useState, useEffect, useRef } from "react";
+import { Button } from "@/components/ui/button";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Badge } from "@/components/ui/badge";
+import { Play, Pause, RotateCcw, Clock, Coffee, Trophy } from "lucide-react";
+import { showSuccess } from "@/utils/toast";
+
+type TimerMode = 'work' | 'shortBreak' | 'longBreak';
+
+const TIMER_DURATIONS = {
+  work: 25 * 60, // 25 minutes
+  shortBreak: 5 * 60, // 5 minutes
+  longBreak: 15 * 60, // 15 minutes
+};
+
+const SESSIONS_BEFORE_LONG_BREAK = 4;
+
+export function PomodoroTimer() {
+  const [mode, setMode] = useState<TimerMode>('work');
+  const [timeLeft, setTimeLeft] = useState(TIMER_DURATIONS.work);
+  const [isRunning, setIsRunning] = useState(false);
+  const [sessionsCompleted, setSessionsCompleted] = useState(0);
+  const intervalRef = useRef<NodeJS.Timeout | null>(null);
+  const audioRef = useRef<HTMLAudioElement | null>(null);
+
+  useEffect(() => {
+    // Create audio element for notification
+    audioRef.current = new Audio('data:audio/wav;base64,UklGRnoGAABXQVZFZm10IBAAAAABAAEAQB8AAEAfAAABAAgAZGF0YQoGAACBhYqFbF1fdJivrJBhNjVgodDbq2EcBj+a2/LDciUFLIHO8tiJNwgZaLvt559NEAxQp+PwtmMcBjiR1/LMeSwFJHfH8N2QQAoUXrTp66hVFApGn+DyvmwhBSuBzvPaizMHGGS56+mgUBELTqXj8bllHgU2jdXtyHAmBSl+zPLaizsIE12y6OqqWBQLSKHh8rxrIQUsgs/z2ow0BxdnuertolIRC0ul4/K5Zx4FNo3V7chxJwUpf8zy24s7CBRdsujqqVgTCkig4fK8ayCFLILP8tqMNAcXZ7nq7aJSEQtLpePxuGYeBS+Mz+3McyYEKH3L8tmKOwgUXLLn6qdZFApHnuDyvGscBSyCzvLbjDMHF2e56+yiUhELSqXj8rhnHgU2jdXtyHEmBCh+y/LZijsJE1yx6OqoWRMKR57g8rxrHAUsgs7y24wzBxdnuevoIlIQC0ql4/K4Zh4FNo3V7chxJgQofszy2Yo7CBNcsefqp1oUCkee4PK8ahwELIHO8tqLNAcXZ7nr7KJSEQtKpePyuWYeBTaN1e3IcSYEKH7M8tmJOwgTXLLo6qlaFApHnuDxvGobBSuBzvPaizQHF2e56+uiURILSqTi8bllHgY2jdXtyHEmBCl+y/LZijsIE1yx5+qnWhQLR57g8bxqHAYrgs7y2oozCBdouevrolQRDEqk4/G4Zh4FNo3V7chxJgQpfsvy2Yo7CBNbsefqp1oUC0ee4PG8ahsGK4HO8tqLMwgXaLnr66JVEQxKpOPyuGUeBTaN1e3IcScEKX/L8tiKOwkSXLLn6qhbFQtHnt/xvGocByyBzvLajDMIF2e56+qiVBEMSqTj8rhlHgU2jdXuyHEnBCl/y/LYijsJElyx6OqoWxULR53f8bxrHAYsgc/y2owzCBdnuevqolQRDEqk4/K5ZR4FNo3V7shwJwQpf8vy2Is7CBJcsujqqFsVC0ed3/G8ahwGLIHO8tqMNAgWZ7nr6qJUEQxKpOPyuWUeBjaN1e7IcCcFKX/M8tiLOwgSXLHo6qhbFQtHnt/xvGodBiyBzvPajTMIF2a56+qiVBEMSqTj8rllHgU2jdXtyHAnBCl/y/LYijwIElyx6OqoWxUKR53f8bxqHQYsgc7z2owyBxdmuevsIVQRC0qk4/K5ZR4FNo3V7shwJwUpf8vy2Io7CBJcsejqqFsVC0ed3/G8ah0GLIDO89qMMggWZrnr66JUERALO6Tj8rllHgU2jdXuyHEnBCl/y/LYijsIElyx6OqoWxYKR53g8bxqHQYsgc7y2owyBxZmuevsI1QRC0qk4/G5ZR4FNo3V7shyJgUpfsvy2Ys7CBJcsejpqFsVCked4PG8ah0GLILO8tqLNAgWZrnr7KNUEQtKpOPxuWYeBTaN1e7HcScEKH7L8tmLPAgSW7Lo6alZFQpHneDxvGobBSyBzvLaizQIF2a56+yhVREMSqPi8bhlHgU2jdXux3ElBCh+zPLZjDwIEluw6OmpWBYJR5zg8bxrGwcsgs7y2oo0CBZmuevsI1QRC0qk4/K4Zh4FNo3V7sdxJwQofszx2Io8CBJbsOjqqVkVCked4PG7axsGLILO8tqKNAgWZrnr6yNVEQtKpOPxuGYeBTaN1e7HcScFKH7M8tmLOwgSXLHo6qlZFQpHneDxu2odBSyBzvLaijMIF2a56+uiVREMSqPj8bhlHgU2jdXuyHEnBCh+zPLZijsIElyx6OqpWRUKR57g8btrGwYrgs7y2oozCBdnuevoI1USCkqk4/G4Zh4FNo3V7shxJwQofczy2Yo7CBNcsefqqVgVCkee4PG8ahwGK4LO8tqLMwgXZ7nr66JUEgtKpOPxuGYeBTWN1e7IcSYFKH7M8tmKOwgTXLHo6qhZFQpHnuDxvGscBSuCzvLaizQHF2e56+uiUxILSqPj8rhmHQU1jtXuyHEmBSh+y/LZijsJE1ux6OqoWhUKR57g8bxrHAUrgs7y2owzCBdnuevrolMRC0qk4/K4ZR4FNY7V7shwJwUpfsvy2Ik7CBNcsejqqFsVC0ee3/G8ahwFLILO8tqMNAgXZ7nr66NUEgtKpOPyuGQeBjWN1e7IcCcFKX/L8tiKOwgTXLHo6qhaFQtHnt/xvGobBSyCzvLajDQIF2e56+ujVBEMSqTj8rhlHgU2jdXuyHEnBSl/y/LZijsIElyx6OqoWxUKR57g8bxqHAUsgs7y2owzCBdnuevrIlQRC0qk4/K4ZR4FNo3V7shxJgUpf8vy2Yk7CBNcsejqqFsVC0ed4PG8ahwFLILO8tqMMwgXZ7nr6yJUEQtKpOPyuGQeBTWO1e7IcCYEKX/L8tmKOwgSXLLo6qhbFQpHnuDxvGobBSyCzvLajDMIF2e56+siVBELSqTj8rhlHgU1jtXuyHEnBCl/y/LZizsIElyx6OqoWxUKR57f8bxqHAYrgs7y2owzCBdnuevoIlQRC0qk4/K4ZR4FNY7V7shxJwQpf8vy2Yo7CBJcsejpqFsVCkee3/G8ahwGK4LO8tqMMwgXZ7nr6yJUEQtKpOPyuGQeBTWO1e7IcSYEKX/L8tmKOwgSXLLo6qhbFQpHnt/xvGobBiyyzvLajDMIF2e56+siVBEMSqPi8rhlHgU1jtXuxnInBCl/y/LZijwIElyx6OmpmBUKR57g8bxrGwcrgs7y2oozCBdnuevoI1QRC0qk4/G4ZR4FNY7V7shxJgUpf8vy2Yo7CBJcsejqqFsVCked3/G8ahwGK4LO8tqMMwgXZ7nr6iNUEQtKpOPyuGQeBTWO1e7IcSYEKX/L8tmKOwgSXLHo6qlZFQpHnuDxvGobBSyBzvLaizMIF2a56+sjVRELSqPj8bhlHgU1jtXuyHAnBSh+y/HYijsJElux6OqpWhYKRp3f8bxqGwYrgs7y2oozCBdnuevrolQRC0qk4/K4ZR4FNY7V7sdxJwUpfsvy2Yo8CBJbsejqqVkVCkee3/G8ahsGK4LO8tqKNAgXZ7nr6qJUEQtKpOPxuGYeBTaN1e7IcSYEKH7M8tmLOwgSW7Do6qlZFQpHnt/xu2obBiuBzvPaizMIF2e56+qiVBILSqTj8bhlHgU2jdXuyHEmBSh+y/LZizsIElyx6OmpWhUKR57f8btqHAYsgc7z2oo0BxdnuevqolQSC0qk4/K4ZR4FNY7V7shxJgUofsvy2Yo7CBNbsejpqVoUC0ed3/G7ahwGLIHO89qKMwgXZ7nr66JTEQtKpOPyuGQeBjSN1e/IcCYEKH/L8tmKOwgTW7Ho6ahbFApHnuDxu2obBSyBzvPaizMIF2e56+qiUxELSqTj8rhlHgU1jtXuyHEnBCh+y/LZijwIE1ux6OmoWxQKR57g8btrGwYrgs7y2oszCBdnuevqolQRCkqk4/K4ZR4FNY7V7shxJgQofszy2Yo7CBNbsejpqFsUCked4PG7axwGLIHO89qKMwgXZ7nr6qJUEQpKpePyuGYeBTaN1e3IcSYEKH7M8dmLOwgSW7Ho6ahbFApHnuDxu2scBiuBzvPaizMIF2e56+qjVRELSqTj8bhlHgU1jtXuyHEnBCh+zPHYijwIElyx6OmpWRUKR57g8btrGwYrgs7y2oo0CBZnuevrolURDEqj4/K4ZR4FNY7V7shxJgUofsvy2Ys7CBJcsejpqVkVCked4PG8ahsGK4LO8tqKNAgWZ7nr66JVEQtKo+PyuWQeBTWO1e7IcSYFJ37M8tmLOwgSXLDo6ahZFQpHneDxvGocBSuCzvLajDQIF2a56+ujVRELSqPj8rllHgU2jdXuyHEnBCh+zPLYijsIE1uw6OmoWhYKR53f8bxqHAYrgs7y2ow0Bhdn');
+  }, []);
+
+  useEffect(() => {
+    if (isRunning && timeLeft > 0) {
+      intervalRef.current = setInterval(() => {
+        setTimeLeft(prev => {
+          if (prev <= 1) {
+            handleTimerComplete();
+            return 0;
+          }
+          return prev - 1;
+        });
+      }, 1000);
+    } else if (intervalRef.current) {
+      clearInterval(intervalRef.current);
+    }
+
+    return () => {
+      if (intervalRef.current) clearInterval(intervalRef.current);
+    };
+  }, [isRunning, timeLeft]);
+
+  const handleTimerComplete = () => {
+    setIsRunning(false);
+
+    // Play notification sound
+    if (audioRef.current) {
+      audioRef.current.play().catch(e => console.error('Audio play failed:', e));
+    }
+
+    if (mode === 'work') {
+      const newSessionCount = sessionsCompleted + 1;
+      setSessionsCompleted(newSessionCount);
+
+      // Determine next break type
+      if (newSessionCount % SESSIONS_BEFORE_LONG_BREAK === 0) {
+        setMode('longBreak');
+        setTimeLeft(TIMER_DURATIONS.longBreak);
+        showSuccess(`Session terminée ! Temps pour une longue pause (${TIMER_DURATIONS.longBreak / 60} min)`);
+      } else {
+        setMode('shortBreak');
+        setTimeLeft(TIMER_DURATIONS.shortBreak);
+        showSuccess(`Session terminée ! Temps pour une courte pause (${TIMER_DURATIONS.shortBreak / 60} min)`);
+      }
+    } else {
+      // Break completed, back to work
+      setMode('work');
+      setTimeLeft(TIMER_DURATIONS.work);
+      showSuccess('Pause terminée ! Prêt pour une nouvelle session ?');
+    }
+  };
+
+  const handleStart = () => {
+    setIsRunning(true);
+  };
+
+  const handlePause = () => {
+    setIsRunning(false);
+  };
+
+  const handleReset = () => {
+    setIsRunning(false);
+    setTimeLeft(TIMER_DURATIONS[mode]);
+  };
+
+  const handleModeChange = (newMode: TimerMode) => {
+    setMode(newMode);
+    setTimeLeft(TIMER_DURATIONS[newMode]);
+    setIsRunning(false);
+  };
+
+  const formatTime = (seconds: number): string => {
+    const mins = Math.floor(seconds / 60);
+    const secs = seconds % 60;
+    return `${mins.toString().padStart(2, '0')}:${secs.toString().padStart(2, '0')}`;
+  };
+
+  const progress = ((TIMER_DURATIONS[mode] - timeLeft) / TIMER_DURATIONS[mode]) * 100;
+
+  return (
+    <Card>
+      <CardHeader>
+        <CardTitle className="flex items-center gap-2">
+          <Clock className="h-5 w-5" />
+          Pomodoro Timer
+          <Badge variant="outline" className="ml-auto">
+            <Trophy className="h-3 w-3 mr-1" />
+            {sessionsCompleted} session{sessionsCompleted !== 1 ? 's' : ''}
+          </Badge>
+        </CardTitle>
+      </CardHeader>
+      <CardContent className="space-y-4">
+        {/* Mode Selector */}
+        <div className="flex gap-2">
+          <Button
+            variant={mode === 'work' ? 'default' : 'outline'}
+            size="sm"
+            onClick={() => handleModeChange('work')}
+            className="flex-1"
+            disabled={isRunning}
+          >
+            Travail
+          </Button>
+          <Button
+            variant={mode === 'shortBreak' ? 'default' : 'outline'}
+            size="sm"
+            onClick={() => handleModeChange('shortBreak')}
+            className="flex-1"
+            disabled={isRunning}
+          >
+            <Coffee className="h-4 w-4 mr-1" />
+            Courte
+          </Button>
+          <Button
+            variant={mode === 'longBreak' ? 'default' : 'outline'}
+            size="sm"
+            onClick={() => handleModeChange('longBreak')}
+            className="flex-1"
+            disabled={isRunning}
+          >
+            <Coffee className="h-4 w-4 mr-1" />
+            Longue
+          </Button>
+        </div>
+
+        {/* Timer Display */}
+        <div className="relative">
+          <div className="text-6xl font-bold text-center py-8 tabular-nums">
+            {formatTime(timeLeft)}
+          </div>
+          {/* Progress bar */}
+          <div className="w-full h-2 bg-secondary rounded-full overflow-hidden">
+            <div
+              className="h-full bg-primary transition-all duration-1000 ease-linear"
+              style={{ width: `${progress}%` }}
+            />
+          </div>
+        </div>
+
+        {/* Controls */}
+        <div className="flex gap-2">
+          {!isRunning ? (
+            <Button onClick={handleStart} className="flex-1" size="lg">
+              <Play className="h-5 w-5 mr-2" />
+              Démarrer
+            </Button>
+          ) : (
+            <Button onClick={handlePause} variant="secondary" className="flex-1" size="lg">
+              <Pause className="h-5 w-5 mr-2" />
+              Pause
+            </Button>
+          )}
+          <Button onClick={handleReset} variant="outline" size="lg">
+            <RotateCcw className="h-5 w-5" />
+          </Button>
+        </div>
+
+        {/* Session Info */}
+        <div className="text-center text-sm text-muted-foreground">
+          {mode === 'work' && (
+            <p>Session {(sessionsCompleted % SESSIONS_BEFORE_LONG_BREAK) + 1} sur {SESSIONS_BEFORE_LONG_BREAK}</p>
+          )}
+          {mode === 'shortBreak' && <p>Pause courte - Profitez-en pour vous étirer</p>}
+          {mode === 'longBreak' && <p>Pause longue - Temps de vraiment déconnecter</p>}
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

src/components/QuickCaptureWidget.tsx

@@ -0,0 +1,145 @@
+import { useState } from "react";
+import { Button } from "@/components/ui/button";
+import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription } from "@/components/ui/dialog";
+import { Textarea } from "@/components/ui/textarea";
+import { Input } from "@/components/ui/input";
+import { Zap, Send } from "lucide-react";
+import NotesService from "@/services/NotesService";
+import { showSuccess, showError } from "@/utils/toast";
+
+interface QuickCaptureWidgetProps {
+  onNoteCaptured?: () => void;
+}
+
+export function QuickCaptureWidget({ onNoteCaptured }: QuickCaptureWidgetProps) {
+  const [open, setOpen] = useState(false);
+  const [title, setTitle] = useState("");
+  const [content, setContent] = useState("");
+  const [isSubmitting, setIsSubmitting] = useState(false);
+
+  const handleCapture = async () => {
+    if (!content.trim()) {
+      showError("Le contenu ne peut pas être vide");
+      return;
+    }
+
+    setIsSubmitting(true);
+    try {
+      const noteTitle = title.trim() || `Note rapide - ${new Date().toLocaleDateString('fr-FR', {
+        day: '2-digit',
+        month: 'short',
+        hour: '2-digit',
+        minute: '2-digit'
+      })}`;
+
+      await NotesService.createNote(noteTitle, content);
+      showSuccess("Note capturée avec succès");
+
+      // Reset form
+      setTitle("");
+      setContent("");
+      setOpen(false);
+
+      // Notify parent component
+      if (onNoteCaptured) {
+        onNoteCaptured();
+      }
+    } catch (error) {
+      showError("Erreur lors de la capture de la note");
+    } finally {
+      setIsSubmitting(false);
+    }
+  };
+
+  const handleKeyDown = (e: React.KeyboardEvent) => {
+    // Cmd/Ctrl + Enter to submit
+    if ((e.metaKey || e.ctrlKey) && e.key === 'Enter') {
+      e.preventDefault();
+      handleCapture();
+    }
+
+    // Escape to close
+    if (e.key === 'Escape') {
+      setOpen(false);
+    }
+  };
+
+  return (
+    <>
+      {/* Floating Action Button */}
+      <Button
+        size="lg"
+        className="fixed bottom-6 right-6 h-14 w-14 rounded-full shadow-lg hover:shadow-xl transition-all z-50"
+        onClick={() => setOpen(true)}
+        title="Capture rapide (Ctrl+Q)"
+      >
+        <Zap className="h-6 w-6" />
+      </Button>
+
+      {/* Quick Capture Modal */}
+      <Dialog open={open} onOpenChange={setOpen}>
+        <DialogContent className="max-w-2xl" onKeyDown={handleKeyDown}>
+          <DialogHeader>
+            <DialogTitle className="flex items-center gap-2">
+              <Zap className="h-5 w-5 text-primary" />
+              Capture rapide
+            </DialogTitle>
+            <DialogDescription>
+              Capturez rapidement une idée ou une note. Appuyez sur Ctrl+Entrée pour enregistrer.
+            </DialogDescription>
+          </DialogHeader>
+
+          <div className="space-y-4">
+            {/* Optional Title */}
+            <div>
+              <Input
+                placeholder="Titre (optionnel)"
+                value={title}
+                onChange={(e) => setTitle(e.target.value)}
+                className="text-lg font-medium"
+                autoFocus={false}
+              />
+              <p className="text-xs text-muted-foreground mt-1">
+                Si vide, un titre avec la date sera généré automatiquement
+              </p>
+            </div>
+
+            {/* Content */}
+            <Textarea
+              placeholder="Votre note..."
+              value={content}
+              onChange={(e) => setContent(e.target.value)}
+              className="min-h-[200px] resize-none"
+              autoFocus
+            />
+
+            {/* Actions */}
+            <div className="flex items-center justify-between">
+              <p className="text-xs text-muted-foreground">
+                <kbd className="px-2 py-1 bg-muted rounded text-xs">Ctrl</kbd> +{' '}
+                <kbd className="px-2 py-1 bg-muted rounded text-xs">Enter</kbd> pour enregistrer
+              </p>
+              <div className="flex gap-2">
+                <Button
+                  variant="outline"
+                  onClick={() => setOpen(false)}
+                  disabled={isSubmitting}
+                >
+                  Annuler
+                </Button>
+                <Button
+                  onClick={handleCapture}
+                  disabled={isSubmitting || !content.trim()}
+                  className="gap-2"
+                >
+                  <Send className="h-4 w-4" />
+                  {isSubmitting ? "Enregistrement..." : "Capturer"}
+                </Button>
+              </div>
+            </div>
+          </div>
+        </DialogContent>
+      </Dialog>
+    </>
+  );
+}

src/components/StatsDashboard.tsx

@@ -0,0 +1,204 @@
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Badge } from "@/components/ui/badge";
+import { Progress } from "@/components/ui/progress";
+import {
+  FileText,
+  CheckSquare,
+  Tag as TagIcon,
+  TrendingUp,
+  Calendar as CalendarIcon,
+  Clock,
+  Target,
+  Zap
+} from "lucide-react";
+import { Note } from "@/services/NotesService";
+import { Todo } from "@/services/TodosService";
+
+interface StatsDashboardProps {
+  notes: Note[];
+  todos: Todo[];
+}
+
+export function StatsDashboard({ notes, todos }: StatsDashboardProps) {
+  // Calculate statistics
+  const totalNotes = notes.length;
+  const archivedNotes = notes.filter(n => n.archived).length;
+  const activeNotes = totalNotes - archivedNotes;
+  const priorityNotes = notes.filter(n => n.priority && !n.archived).length;
+
+  const totalTodos = todos.length;
+  const completedTodos = todos.filter(t => t.completed).length;
+  const activeTodos = totalTodos - completedTodos;
+  const completionRate = totalTodos > 0 ? (completedTodos / totalTodos) * 100 : 0;
+
+  // Notes with specific content
+  const notesWithTodos = notes.filter(n => n.todos && n.todos.length > 0 && !n.archived).length;
+  const notesWithImages = notes.filter(n => n.images && n.images.length > 0 && !n.archived).length;
+  const notesWithFiles = notes.filter(n => n.files && n.files.length > 0 && !n.archived).length;
+
+  // Get all unique tags
+  const allTags = new Set<string>();
+  notes.forEach(note => {
+    note.tags?.forEach(tag => allTags.add(tag.name));
+  });
+  const totalTags = allTags.size;
+
+  // Recent activity (notes updated in last 7 days)
+  const sevenDaysAgo = new Date();
+  sevenDaysAgo.setDate(sevenDaysAgo.getDate() - 7);
+  const recentlyUpdated = notes.filter(n =>
+    n.updated_at && new Date(n.updated_at) > sevenDaysAgo
+  ).length;
+
+  // Calculate productivity score (0-100)
+  const productivityScore = Math.round(
+    (completionRate * 0.4) +
+    ((activeNotes > 0 ? Math.min(priorityNotes / activeNotes, 1) : 0) * 20) +
+    ((recentlyUpdated / Math.max(activeNotes, 1)) * 40)
+  );
+
+  return (
+    <div className="space-y-4">
+      {/* Productivity Score */}
+      <Card>
+        <CardHeader className="pb-3">
+          <CardTitle className="text-sm font-medium flex items-center gap-2">
+            <Target className="h-4 w-4 text-primary" />
+            Score de Productivité
+          </CardTitle>
+        </CardHeader>
+        <CardContent>
+          <div className="space-y-2">
+            <div className="flex items-center justify-between">
+              <span className="text-3xl font-bold">{productivityScore}</span>
+              <Badge variant={productivityScore >= 70 ? "default" : productivityScore >= 40 ? "secondary" : "outline"}>
+                {productivityScore >= 70 ? "Excellent" : productivityScore >= 40 ? "Bien" : "À améliorer"}
+              </Badge>
+            </div>
+            <Progress value={productivityScore} className="h-2" />
+            <p className="text-xs text-muted-foreground">
+              Basé sur le taux de complétion, notes prioritaires et activité récente
+            </p>
+          </div>
+        </CardContent>
+      </Card>
+
+      {/* Notes Statistics */}
+      <div className="grid grid-cols-2 gap-4">
+        <Card>
+          <CardHeader className="pb-3">
+            <CardTitle className="text-sm font-medium flex items-center gap-2">
+              <FileText className="h-4 w-4" />
+              Notes
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
+            <div className="space-y-2">
+              <div className="flex items-center justify-between">
+                <span className="text-xs text-muted-foreground">Total</span>
+                <span className="text-2xl font-bold">{totalNotes}</span>
+              </div>
+              <div className="flex items-center justify-between text-xs">
+                <span className="text-muted-foreground">Actives</span>
+                <Badge variant="secondary">{activeNotes}</Badge>
+              </div>
+              <div className="flex items-center justify-between text-xs">
+                <span className="text-muted-foreground">Archivées</span>
+                <Badge variant="outline">{archivedNotes}</Badge>
+              </div>
+              <div className="flex items-center justify-between text-xs">
+                <span className="text-muted-foreground">Prioritaires</span>
+                <Badge variant="destructive">{priorityNotes}</Badge>
+              </div>
+            </div>
+          </CardContent>
+        </Card>
+
+        <Card>
+          <CardHeader className="pb-3">
+            <CardTitle className="text-sm font-medium flex items-center gap-2">
+              <CheckSquare className="h-4 w-4" />
+              Tâches
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
+            <div className="space-y-2">
+              <div className="flex items-center justify-between">
+                <span className="text-xs text-muted-foreground">Total</span>
+                <span className="text-2xl font-bold">{totalTodos}</span>
+              </div>
+              <div className="flex items-center justify-between text-xs">
+                <span className="text-muted-foreground">Complétées</span>
+                <Badge variant="secondary">{completedTodos}</Badge>
+              </div>
+              <div className="flex items-center justify-between text-xs">
+                <span className="text-muted-foreground">En cours</span>
+                <Badge variant="default">{activeTodos}</Badge>
+              </div>
+              <div className="flex items-center justify-between text-xs">
+                <span className="text-muted-foreground">Taux</span>
+                <Badge variant="outline">{completionRate.toFixed(0)}%</Badge>
+              </div>
+            </div>
+          </CardContent>
+        </Card>
+      </div>
+
+      {/* Content Statistics */}
+      <Card>
+        <CardHeader className="pb-3">
+          <CardTitle className="text-sm font-medium flex items-center gap-2">
+            <Zap className="h-4 w-4" />
+            Contenu
+          </CardTitle>
+        </CardHeader>
+        <CardContent>
+          <div className="grid grid-cols-2 gap-4">
+            <div className="space-y-1">
+              <div className="flex items-center justify-between text-xs">
+                <span className="text-muted-foreground">Avec tâches</span>
+                <Badge variant="secondary">{notesWithTodos}</Badge>
+              </div>
+              <div className="flex items-center justify-between text-xs">
+                <span className="text-muted-foreground">Avec images</span>
+                <Badge variant="secondary">{notesWithImages}</Badge>
+              </div>
+            </div>
+            <div className="space-y-1">
+              <div className="flex items-center justify-between text-xs">
+                <span className="text-muted-foreground">Avec fichiers</span>
+                <Badge variant="secondary">{notesWithFiles}</Badge>
+              </div>
+              <div className="flex items-center justify-between text-xs">
+                <span className="text-muted-foreground">Tags uniques</span>
+                <Badge variant="secondary">{totalTags}</Badge>
+              </div>
+            </div>
+          </div>
+        </CardContent>
+      </Card>
+
+      {/* Recent Activity */}
+      <Card>
+        <CardHeader className="pb-3">
+          <CardTitle className="text-sm font-medium flex items-center gap-2">
+            <TrendingUp className="h-4 w-4" />
+            Activité Récente
+          </CardTitle>
+        </CardHeader>
+        <CardContent>
+          <div className="flex items-center justify-between">
+            <div className="flex items-center gap-2">
+              <Clock className="h-4 w-4 text-muted-foreground" />
+              <span className="text-sm text-muted-foreground">Derniers 7 jours</span>
+            </div>
+            <div className="flex items-center gap-2">
+              <span className="text-2xl font-bold">{recentlyUpdated}</span>
+              <span className="text-sm text-muted-foreground">notes modifiées</span>
+            </div>
+          </div>
+        </CardContent>
+      </Card>
+    </div>
+  );
+}

src/components/TemplateSelector.tsx

@@ -0,0 +1,126 @@
+import { useState } from "react";
+import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription } from "@/components/ui/dialog";
+import { Input } from "@/components/ui/input";
+import { Button } from "@/components/ui/button";
+import { ScrollArea } from "@/components/ui/scroll-area";
+import { Badge } from "@/components/ui/badge";
+import { Search, Sparkles } from "lucide-react";
+import { DEFAULT_TEMPLATES, getTemplatesByCategory, searchTemplates, type NoteTemplate } from "@/utils/noteTemplates";
+
+interface TemplateSelectorProps {
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+  onSelectTemplate: (template: NoteTemplate) => void;
+}
+
+export function TemplateSelector({ open, onOpenChange, onSelectTemplate }: TemplateSelectorProps) {
+  const [searchQuery, setSearchQuery] = useState("");
+
+  const templates = searchQuery.trim()
+    ? searchTemplates(searchQuery)
+    : DEFAULT_TEMPLATES;
+
+  const templatesByCategory = getTemplatesByCategory();
+
+  const handleSelectTemplate = (template: NoteTemplate) => {
+    onSelectTemplate(template);
+    onOpenChange(false);
+    setSearchQuery("");
+  };
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="max-w-3xl max-h-[80vh]">
+        <DialogHeader>
+          <DialogTitle className="flex items-center gap-2">
+            <Sparkles className="h-5 w-5 text-primary" />
+            Choisir un template
+          </DialogTitle>
+          <DialogDescription>
+            Démarrez rapidement avec un modèle prédéfini
+          </DialogDescription>
+        </DialogHeader>
+
+        {/* Search */}
+        <div className="relative">
+          <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-4 w-4 text-muted-foreground" />
+          <Input
+            placeholder="Rechercher un template..."
+            value={searchQuery}
+            onChange={(e) => setSearchQuery(e.target.value)}
+            className="pl-9"
+          />
+        </div>
+
+        {/* Templates Grid */}
+        <ScrollArea className="h-[400px] pr-4">
+          {searchQuery.trim() ? (
+            // Search Results
+            <div className="grid grid-cols-1 md:grid-cols-2 gap-3">
+              {templates.map((template) => (
+                <TemplateCard
+                  key={template.id}
+                  template={template}
+                  onClick={() => handleSelectTemplate(template)}
+                />
+              ))}
+              {templates.length === 0 && (
+                <div className="col-span-2 text-center py-8 text-muted-foreground">
+                  Aucun template trouvé
+                </div>
+              )}
+            </div>
+          ) : (
+            // Templates by Category
+            <div className="space-y-6">
+              {Array.from(templatesByCategory.entries()).map(([category, categoryTemplates]) => (
+                <div key={category}>
+                  <h3 className="font-semibold mb-3 text-sm text-muted-foreground uppercase tracking-wide">
+                    {category}
+                  </h3>
+                  <div className="grid grid-cols-1 md:grid-cols-2 gap-3">
+                    {categoryTemplates.map((template) => (
+                      <TemplateCard
+                        key={template.id}
+                        template={template}
+                        onClick={() => handleSelectTemplate(template)}
+                      />
+                    ))}
+                  </div>
+                </div>
+              ))}
+            </div>
+          )}
+        </ScrollArea>
+      </DialogContent>
+    </Dialog>
+  );
+}
+
+interface TemplateCardProps {
+  template: NoteTemplate;
+  onClick: () => void;
+}
+
+function TemplateCard({ template, onClick }: TemplateCardProps) {
+  return (
+    <Button
+      variant="outline"
+      className="h-auto p-4 flex flex-col items-start gap-2 hover:bg-accent hover:border-primary transition-all"
+      onClick={onClick}
+    >
+      <div className="flex items-center gap-2 w-full">
+        <span className="text-2xl">{template.icon}</span>
+        <span className="font-semibold text-left flex-1">{template.name}</span>
+      </div>
+      <p className="text-sm text-muted-foreground text-left">
+        {template.description}
+      </p>
+      {template.todos && template.todos.length > 0 && (
+        <Badge variant="secondary" className="text-xs">
+          {template.todos.length} tâche{template.todos.length > 1 ? 's' : ''}
+        </Badge>
+      )}
+    </Button>
+  );
+}

src/components/mode-toggle.tsx

@@ -0,0 +1,36 @@
+import { Moon, Sun } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu";
+import { useTheme } from "@/components/theme-provider";
+
+export function ModeToggle() {
+  const { setTheme } = useTheme();
+
+  return (
+    <DropdownMenu>
+      <DropdownMenuTrigger asChild>
+        <Button variant="outline" size="icon">
+          <Sun className="h-[1.2rem] w-[1.2rem] rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
+          <Moon className="absolute h-[1.2rem] w-[1.2rem] rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
+          <span className="sr-only">Toggle theme</span>
+        </Button>
+      </DropdownMenuTrigger>
+      <DropdownMenuContent align="end">
+        <DropdownMenuItem onClick={() => setTheme("light")}>
+          Clair
+        </DropdownMenuItem>
+        <DropdownMenuItem onClick={() => setTheme("dark")}>
+          Sombre
+        </DropdownMenuItem>
+        <DropdownMenuItem onClick={() => setTheme("system")}>
+          Système
+        </DropdownMenuItem>
+      </DropdownMenuContent>
+    </DropdownMenu>
+  );
+}

src/hooks/useKeyboardShortcuts.ts

@@ -0,0 +1,87 @@
+import { useEffect } from 'react';
+
+export interface KeyboardShortcut {
+  key: string;
+  ctrl?: boolean;
+  alt?: boolean;
+  shift?: boolean;
+  meta?: boolean;
+  description: string;
+  handler: () => void;
+  preventDefault?: boolean;
+}
+
+/**
+ * Custom hook for managing keyboard shortcuts
+ */
+export function useKeyboardShortcuts(
+  shortcuts: KeyboardShortcut[],
+  enabled = true
+) {
+  useEffect(() => {
+    if (!enabled) return;
+
+    const handleKeyDown = (event: KeyboardEvent) => {
+      for (const shortcut of shortcuts) {
+        const keyMatch = event.key.toLowerCase() === shortcut.key.toLowerCase();
+        const ctrlMatch = shortcut.ctrl ? (event.ctrlKey || event.metaKey) : !event.ctrlKey && !event.metaKey;
+        const altMatch = shortcut.alt ? event.altKey : !event.altKey;
+        const shiftMatch = shortcut.shift ? event.shiftKey : !event.shiftKey;
+        const metaMatch = shortcut.meta ? event.metaKey : !event.metaKey;
+
+        if (keyMatch && ctrlMatch && altMatch && shiftMatch && metaMatch) {
+          if (shortcut.preventDefault !== false) {
+            event.preventDefault();
+          }
+          shortcut.handler();
+          break;
+        }
+      }
+    };
+
+    window.addEventListener('keydown', handleKeyDown);
+    return () => window.removeEventListener('keydown', handleKeyDown);
+  }, [shortcuts, enabled]);
+}
+
+/**
+ * Format keyboard shortcut for display
+ */
+export function formatShortcut(shortcut: KeyboardShortcut): string {
+  const parts: string[] = [];
+
+  if (shortcut.ctrl || shortcut.meta) {
+    parts.push(navigator.platform.includes('Mac') ? '⌘' : 'Ctrl');
+  }
+  if (shortcut.alt) {
+    parts.push(navigator.platform.includes('Mac') ? '⌥' : 'Alt');
+  }
+  if (shortcut.shift) {
+    parts.push(navigator.platform.includes('Mac') ? '⇧' : 'Shift');
+  }
+
+  parts.push(shortcut.key.toUpperCase());
+
+  return parts.join('+');
+}
+
+/**
+ * Common keyboard shortcuts used across the app
+ */
+export const COMMON_SHORTCUTS = {
+  NEW_NOTE: { key: 'n', ctrl: true, description: 'Nouvelle note' },
+  SEARCH: { key: 'k', ctrl: true, description: 'Rechercher' },
+  QUICK_CAPTURE: { key: 'q', ctrl: true, description: 'Capture rapide' },
+  TOGGLE_SIDEBAR: { key: 'b', ctrl: true, description: 'Basculer sidebar' },
+  SAVE: { key: 's', ctrl: true, description: 'Sauvegarder' },
+  CLOSE: { key: 'Escape', description: 'Fermer' },
+  HELP: { key: '?', shift: true, description: 'Aide raccourcis' },
+  ARCHIVE: { key: 'e', ctrl: true, description: 'Archiver note' },
+  DELETE: { key: 'Delete', ctrl: true, description: 'Supprimer' },
+  NEXT: { key: 'j', description: 'Suivant' },
+  PREVIOUS: { key: 'k', description: 'Précédent' },
+  TOGGLE_TODO: { key: 'Enter', ctrl: true, description: 'Toggle todo' },
+  BOLD: { key: 'b', ctrl: true, description: 'Gras' },
+  ITALIC: { key: 'i', ctrl: true, description: 'Italique' },
+  LINK: { key: 'k', ctrl: true, shift: true, description: 'Lien' },
+};

src/pages/Index.tsx

@@ -15,7 +15,7 @@ import { Command, CommandEmpty, CommandGroup, CommandInput, CommandItem, Command
 import { RichTextEditor } from "@/components/RichTextEditor";
 import {
   PlusCircle, Search, User, LogOut, Settings, ChevronDown, Plus, Archive, Trash2,
-  Image as ImageIcon, CheckSquare, FileText, Rss, ExternalLink, RefreshCw, Key, Zap, Paperclip, X, Edit, Calendar as CalendarIcon, Tag as TagIcon, MessageSquare, Send, Check, ChevronsUpDown, Star, Activity
+  Image as ImageIcon, CheckSquare, FileText, Rss, ExternalLink, RefreshCw, Key, Zap, Paperclip, X, Edit, Calendar as CalendarIcon, Tag as TagIcon, MessageSquare, Send, Check, ChevronsUpDown, Star, Activity, FileDown, LayoutGrid, List, Sparkles
 } from "lucide-react";
 import AuthService from "@/services/AuthService";
 import AdminService from "@/services/AdminService";
@@ -32,6 +32,18 @@ import { ConfirmModal } from "@/components/modals/ConfirmModal";
 import { InputModal } from "@/components/modals/InputModal";
 import { AddUserModal } from "@/components/modals/AddUserModal";
 import { compressImage, formatFileSize } from "@/utils/imageCompression";
+import { ModeToggle } from "@/components/mode-toggle";
+import { downloadNoteAsMarkdown, downloadAllNotesAsMarkdown, downloadTodosAsMarkdown } from "@/utils/markdownExport";
+import { TemplateSelector } from "@/components/TemplateSelector";
+import type { NoteTemplate } from "@/utils/noteTemplates";
+import { AdvancedSearch, type SearchFilters, type TagOption } from "@/components/AdvancedSearch";
+import { PomodoroTimer } from "@/components/PomodoroTimer";
+import { KanbanBoard } from "@/components/KanbanBoard";
+import { getSmartTagSuggestions } from "@/utils/smartTags";
+import { QuickCaptureWidget } from "@/components/QuickCaptureWidget";
+import { StatsDashboard } from "@/components/StatsDashboard";
+import { KeyboardShortcutsHelp } from "@/components/KeyboardShortcutsHelp";
+import { useKeyboardShortcuts, type KeyboardShortcut } from "@/hooks/useKeyboardShortcuts";
 
 // ===== FONCTIONS UTILITAIRES TIMEZONE EUROPE/PARIS =====
 
@@ -111,6 +123,15 @@ const Index = () => {
   const [user, setUser] = useState<UserType | null>(null);
   const [showAdmin, setShowAdmin] = useState(false);
   const [searchQuery, setSearchQuery] = useState("");
+  const [searchFilters, setSearchFilters] = useState<SearchFilters>({
+    tags: [],
+    dateFrom: undefined,
+    dateTo: undefined,
+    hasTodos: undefined,
+    hasImages: undefined,
+    hasFiles: undefined,
+    priority: undefined
+  });
   const [notes, setNotes] = useState<Note[]>([]);
   const [openNote, setOpenNote] = useState<Note | null>(null);
   const [users, setUsers] = useState<UserType[]>([]);
@@ -121,6 +142,7 @@ const Index = () => {
   const [settings, setSettings] = useState<AppSettings>({});
   const [adminTab, setAdminTab] = useState("users");
   const [showArchived, setShowArchived] = useState(false);
+  const [notesViewMode, setNotesViewMode] = useState<'list' | 'kanban'>('list');
   const [noteTags, setNoteTags] = useState<Tag[]>([]);
   const [openRouterModels, setOpenRouterModels] = useState<OpenRouterModel[]>([]);
   const [loadingModels, setLoadingModels] = useState(false);
@@ -145,11 +167,14 @@ const Index = () => {
   const [addUserModal, setAddUserModal] = useState(false);
   const [deleteUserModal, setDeleteUserModal] = useState<{ open: boolean, userId?: number }>({ open: false });
   const [changePasswordModal, setChangePasswordModal] = useState<{ open: boolean, userId?: number }>({ open: false });
+  const [templateSelectorOpen, setTemplateSelectorOpen] = useState(false);
   const [addNoteTodoModal, setAddNoteTodoModal] = useState(false);
   const [addTagModal, setAddTagModal] = useState(false);
   const [selectedImage, setSelectedImage] = useState<string | null>(null);
   const [addEventModal, setAddEventModal] = useState(false);
   const [editEventModal, setEditEventModal] = useState<{ open: boolean, event?: CalendarEvent }>({ open: false });
+  const [showKeyboardHelp, setShowKeyboardHelp] = useState(false);
+  const [showStatsDashboard, setShowStatsDashboard] = useState(false);
 
   // Pagination states
   const [notesPage, setNotesPage] = useState(0);
@@ -408,12 +433,32 @@ const Index = () => {
     navigate("/login");
   };
 
-  const handleCreateNote = async () => {
+  const handleCreateNote = () => {
+    setTemplateSelectorOpen(true);
+  };
+
+  const handleCreateNoteFromTemplate = async (template: NoteTemplate) => {
     try {
-      const newNote = await NotesService.createNote("Nouvelle note");
+      const title = template.name === "Note vide" ? "Nouvelle note" : template.name;
+      const newNote = await NotesService.createNote(title, template.content);
       if (newNote) {
-        setNotes([newNote, ...notes]);
-        setOpenNote(newNote);
+        // Add todos if template has any
+        if (template.todos && template.todos.length > 0) {
+          for (const todo of template.todos) {
+            await NotesService.addTodo(newNote.id!, todo.text);
+          }
+          // Reload note to get the todos
+          const notes = await NotesService.getNotes();
+          const updatedNote = notes.find(n => n.id === newNote.id);
+          if (updatedNote) {
+            setNotes([updatedNote, ...notes.filter(n => n.id !== newNote.id)]);
+            setOpenNote(updatedNote);
+          }
+        } else {
+          setNotes([newNote, ...notes]);
+          setOpenNote(newNote);
+        }
+        showSuccess("Note créée depuis le template");
       }
     } catch (error) {
       showError("Erreur lors de la création de la note");
@@ -803,12 +848,71 @@ const Index = () => {
     }
   };
 
-  const filteredNotes = notes.filter(note =>
-    (showArchived ? note.archived : !note.archived) &&
-    (searchQuery === "" ||
-      (note.title && note.title.toLowerCase().includes(searchQuery.toLowerCase())) ||
-      (note.content && note.content.toLowerCase().includes(searchQuery.toLowerCase())))
-  );
+  // Extract unique tags from all notes
+  const availableTags: TagOption[] = Array.from(
+    new Map(
+      notes.flatMap(note =>
+        (note.tags || []).map(tag => [tag.name, { id: tag.id!, name: tag.name }])
+      )
+    ).values()
+  ).sort((a, b) => a.name.localeCompare(b.name));
+
+  const filteredNotes = notes.filter(note => {
+    // Archived filter
+    if (showArchived ? !note.archived : note.archived) return false;
+
+    // Text search
+    if (searchQuery !== "" &&
+      !(note.title && note.title.toLowerCase().includes(searchQuery.toLowerCase())) &&
+      !(note.content && note.content.toLowerCase().includes(searchQuery.toLowerCase()))) {
+      return false;
+    }
+
+    // Tags filter
+    if (searchFilters.tags.length > 0) {
+      const noteTags = (note.tags || []).map(t => t.name);
+      if (!searchFilters.tags.some(filterTag => noteTags.includes(filterTag))) {
+        return false;
+      }
+    }
+
+    // Date range filter
+    if (searchFilters.dateFrom || searchFilters.dateTo) {
+      const noteDate = new Date(note.updated_at || note.created_at || 0);
+      if (searchFilters.dateFrom) {
+        const fromDate = new Date(searchFilters.dateFrom);
+        fromDate.setHours(0, 0, 0, 0);
+        if (noteDate < fromDate) return false;
+      }
+      if (searchFilters.dateTo) {
+        const toDate = new Date(searchFilters.dateTo);
+        toDate.setHours(23, 59, 59, 999);
+        if (noteDate > toDate) return false;
+      }
+    }
+
+    // Has todos filter
+    if (searchFilters.hasTodos && (!note.todos || note.todos.length === 0)) {
+      return false;
+    }
+
+    // Has images filter
+    if (searchFilters.hasImages && (!note.images || note.images.length === 0)) {
+      return false;
+    }
+
+    // Has files filter
+    if (searchFilters.hasFiles && (!note.files || note.files.length === 0)) {
+      return false;
+    }
+
+    // Priority filter
+    if (searchFilters.priority && !note.priority) {
+      return false;
+    }
+
+    return true;
+  });
 
   // Pagination for notes
   const totalNotesPages = Math.ceil(filteredNotes.length / NOTES_PER_PAGE);
@@ -820,7 +924,7 @@ const Index = () => {
   // Reset page when changing filters or search
   useEffect(() => {
     setNotesPage(0);
-  }, [showArchived, searchQuery]);
+  }, [showArchived, searchQuery, searchFilters]);
 
   useEffect(() => {
     setTodosActivePage(0);
@@ -835,6 +939,72 @@ const Index = () => {
     setCalendarPage(0);
   }, [calendarEvents.length]);
 
+  // Define keyboard shortcuts
+  const keyboardShortcuts: KeyboardShortcut[] = [
+    {
+      key: 'n',
+      ctrl: true,
+      description: 'Nouvelle note',
+      handler: () => !showAdmin && handleCreateNote()
+    },
+    {
+      key: 'k',
+      ctrl: true,
+      description: 'Rechercher',
+      handler: () => {
+        const searchInput = document.querySelector('input[type="search"]') as HTMLInputElement;
+        if (searchInput) searchInput.focus();
+      }
+    },
+    {
+      key: 'q',
+      ctrl: true,
+      description: 'Capture rapide',
+      handler: () => {
+        const captureButton = document.querySelector('[title="Capture rapide (Ctrl+Q)"]') as HTMLButtonElement;
+        if (captureButton) captureButton.click();
+      }
+    },
+    {
+      key: 'Escape',
+      description: 'Fermer note/modal',
+      handler: () => {
+        if (openNote) setOpenNote(null);
+        else if (showAdmin) setShowAdmin(false);
+        else if (showKeyboardHelp) setShowKeyboardHelp(false);
+      },
+      preventDefault: false
+    },
+    {
+      key: '?',
+      shift: true,
+      description: 'Aide raccourcis',
+      handler: () => setShowKeyboardHelp(true)
+    },
+    {
+      key: 'e',
+      ctrl: true,
+      description: 'Archiver note',
+      handler: async () => {
+        if (openNote?.id) {
+          await handleUpdateNote({ archived: !openNote.archived });
+        }
+      }
+    },
+    {
+      key: 's',
+      ctrl: true,
+      description: 'Sauvegarder (auto)',
+      handler: () => {
+        // Note: Auto-save is handled by the editor
+        showSuccess('Auto-save actif');
+      }
+    }
+  ];
+
+  // Register keyboard shortcuts
+  useKeyboardShortcuts(keyboardShortcuts, !showAdmin);
+
   // Pagination for todos
   const activeTodos = todos.filter(t => !t.completed);
   const completedTodos = todos.filter(t => t.completed);
@@ -923,6 +1093,8 @@ const Index = () => {
                 Nouvelle Note
               </Button>
 
+              <ModeToggle />
+
               {user && (
                 <DropdownMenu>
                   <DropdownMenuTrigger asChild>
@@ -1090,6 +1262,9 @@ const Index = () => {
                 )}
               </CardContent>
             </Card>
+
+            {/* Statistics Dashboard */}
+            <StatsDashboard notes={notes} todos={todos} />
           </div>
 
           {/* Middle Column: Notes or Open Note */}
@@ -1116,20 +1291,51 @@ const Index = () => {
                     </div>
                   </div>
 
-                  <div className="relative w-96">
-                    <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-5 w-5 text-muted-foreground" />
-                    <Input
-                      type="search"
-                      placeholder="Rechercher dans les notes..."
-                      className="pl-10 h-12 text-base"
-                      value={searchQuery}
-                      onChange={(e) => setSearchQuery(e.target.value)}
+                  <div className="flex items-center gap-2">
+                    <div className="relative w-96">
+                      <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-5 w-5 text-muted-foreground" />
+                      <Input
+                        type="search"
+                        placeholder="Rechercher dans les notes..."
+                        className="pl-10 h-12 text-base"
+                        value={searchQuery}
+                        onChange={(e) => setSearchQuery(e.target.value)}
+                      />
+                    </div>
+                    <AdvancedSearch
+                      filters={searchFilters}
+                      onFiltersChange={setSearchFilters}
+                      availableTags={availableTags}
                     />
+
+                    {/* View Mode Toggle */}
+                    <div className="flex gap-1 border rounded-md p-1">
+                      <Button
+                        variant={notesViewMode === 'list' ? 'default' : 'ghost'}
+                        size="sm"
+                        onClick={() => setNotesViewMode('list')}
+                        className="gap-2"
+                      >
+                        <List className="h-4 w-4" />
+                        Liste
+                      </Button>
+                      <Button
+                        variant={notesViewMode === 'kanban' ? 'default' : 'ghost'}
+                        size="sm"
+                        onClick={() => setNotesViewMode('kanban')}
+                        className="gap-2"
+                      >
+                        <LayoutGrid className="h-4 w-4" />
+                        Kanban
+                      </Button>
+                    </div>
                   </div>
                 </div>
 
-                {/* Notes Grid - 1 column for better visibility */}
-                <div className="grid grid-cols-1 gap-4">
+                {/* Notes View - List or Kanban */}
+                {notesViewMode === 'list' ? (
+                  <>
+                  <div className="grid grid-cols-1 gap-4">
                   {filteredNotes.length > 0 ? (
                     paginatedNotes.map(note => (
                       <Card
@@ -1267,6 +1473,41 @@ const Index = () => {
                     </Button>
                   </div>
                 )}
+                </>
+                ) : (
+                  /* Kanban View */
+                  <KanbanBoard
+                    notes={filteredNotes}
+                    onNoteClick={handleOpenNote}
+                    onCreateNote={(columnId) => {
+                      setTemplateSelectorOpen(true);
+                      // TODO: Set initial tag based on columnId
+                    }}
+                    onMoveNote={async (noteId, newStatus) => {
+                      // Move note to new column by updating its status tag
+                      const note = notes.find(n => n.id === noteId);
+                      if (!note) return;
+
+                      // Remove old status tags
+                      const oldStatusTags = note.tags?.filter(tag =>
+                        ['backlog', 'todo', 'in_progress', 'review', 'done'].includes(tag.name.toLowerCase())
+                      ) || [];
+
+                      for (const tag of oldStatusTags) {
+                        if (tag.id && note.id) {
+                          await TagsService.deleteTag(note.id, tag.id);
+                        }
+                      }
+
+                      // Add new status tag
+                      if (note.id) {
+                        await TagsService.addTag(note.id, newStatus);
+                        await loadNotes(); // Refresh notes
+                        showSuccess(`Note déplacée vers ${newStatus}`);
+                      }
+                    }}
+                  />
+                )}
               </>
             ) : (
               /* Open Note Editor */
@@ -1275,6 +1516,19 @@ const Index = () => {
                   <div></div>
 
                   <div className="flex items-center gap-2">
+                    <Button
+                      variant="outline"
+                      size="icon"
+                      onClick={() => {
+                        if (openNote) {
+                          downloadNoteAsMarkdown(openNote);
+                          showSuccess("Note exportée en Markdown");
+                        }
+                      }}
+                      title="Exporter en Markdown"
+                    >
+                      <FileDown className="h-4 w-4" />
+                    </Button>
                     <Button
                       variant="outline"
                       size="icon"
@@ -1425,6 +1679,34 @@ const Index = () => {
                   </div>
                 )}
 
+                {/* Smart Tag Suggestions */}
+                {openNote && (() => {
+                  const existingTags = noteTags.map(t => t.tag);
+                  const suggestions = getSmartTagSuggestions(openNote, notes, existingTags);
+
+                  return suggestions.length > 0 && (
+                    <div className="space-y-2">
+                      <p className="text-xs text-muted-foreground flex items-center gap-1">
+                        <Sparkles className="h-3 w-3" />
+                        Suggestions de tags
+                      </p>
+                      <div className="flex gap-2 flex-wrap">
+                        {suggestions.map((suggestion) => (
+                          <Badge
+                            key={suggestion}
+                            variant="outline"
+                            className="text-xs px-2 py-1 gap-1 cursor-pointer hover:bg-primary hover:text-primary-foreground transition-colors"
+                            onClick={() => confirmAddTag(suggestion)}
+                          >
+                            <Plus className="h-3 w-3" />
+                            {suggestion}
+                          </Badge>
+                        ))}
+                      </div>
+                    </div>
+                  );
+                })()}
+
                 {/* Todos */}
                 {openNote.todos && openNote.todos.length > 0 && (
                   <>
@@ -1624,8 +1906,13 @@ const Index = () => {
             )}
           </div>
 
-          {/* Right Column: Todos & RSS Boxes side by side */}
-          <div className="grid grid-cols-2 gap-6">
+          {/* Right Column: Pomodoro Timer, Todos & RSS */}
+          <div className="space-y-6">
+            {/* Pomodoro Timer */}
+            <PomodoroTimer />
+
+            {/* Todos & RSS Boxes side by side */}
+            <div className="grid grid-cols-2 gap-6">
             {/* Todos Box */}
             <Card className="shadow-lg">
               <CardHeader className="pb-3">
@@ -1855,6 +2142,7 @@ const Index = () => {
             </Card>
 
           </div>
+          </div>
         </div>
       </div>
 
@@ -2270,6 +2558,13 @@ const Index = () => {
         confirmText="Ajouter"
       />
 
+      {/* Template Selector */}
+      <TemplateSelector
+        open={templateSelectorOpen}
+        onOpenChange={setTemplateSelectorOpen}
+        onSelectTemplate={handleCreateNoteFromTemplate}
+      />
+
       {/* Add Event Modal */}
       <Dialog open={addEventModal} onOpenChange={setAddEventModal}>
         <DialogContent className="max-w-2xl max-h-[90vh] overflow-y-auto">
@@ -2846,6 +3141,16 @@ const Index = () => {
           </div>
         </div>
       )}
+
+      {/* Keyboard Shortcuts Help Modal */}
+      <KeyboardShortcutsHelp
+        open={showKeyboardHelp}
+        onOpenChange={setShowKeyboardHelp}
+        shortcuts={keyboardShortcuts}
+      />
+
+      {/* Quick Capture Widget */}
+      <QuickCaptureWidget onNoteCaptured={loadNotes} />
     </div>
   );
 };

src/pages/mobile/NoteDetailPage.tsx

@@ -17,7 +17,8 @@ import {
   Paperclip,
   Tag as TagIcon,
   X,
-  MoreVertical
+  MoreVertical,
+  FileDown
 } from "lucide-react";
 import {
   DropdownMenu,
@@ -28,6 +29,7 @@ import {
 import NotesService, { Note } from "@/services/NotesService";
 import { showError, showSuccess } from "@/utils/toast";
 import { compressImage, formatFileSize } from "@/utils/imageCompression";
+import { downloadNoteAsMarkdown } from "@/utils/markdownExport";
 
 export default function NoteDetailPage() {
   const { id } = useParams();
@@ -199,6 +201,15 @@ export default function NoteDetailPage() {
               </Button>
             </DropdownMenuTrigger>
             <DropdownMenuContent align="end">
+              <DropdownMenuItem onClick={() => {
+                if (note) {
+                  downloadNoteAsMarkdown(note);
+                  showSuccess("Note exportée en Markdown");
+                }
+              }}>
+                <FileDown className="h-4 w-4 mr-2" />
+                Exporter en Markdown
+              </DropdownMenuItem>
               <DropdownMenuItem onClick={async () => {
                 if (note?.id) {
                   const newArchived = !note.archived;

src/pages/mobile/NotesPage.tsx

@@ -5,17 +5,33 @@ import { Input } from "@/components/ui/input";
 import { Badge } from "@/components/ui/badge";
 import { MobileFAB } from "@/components/mobile/MobileFAB";
 import { MobileCard } from "@/components/mobile/MobileCard";
-import { Plus, Search, CheckSquare, Image as ImageIcon, Paperclip, Tag as TagIcon, FileText } from "lucide-react";
+import { Plus, Search, CheckSquare, Image as ImageIcon, Paperclip, Tag as TagIcon, FileText, LayoutGrid, List } from "lucide-react";
 import NotesService, { Note } from "@/services/NotesService";
 import { showError, showSuccess } from "@/utils/toast";
+import { TemplateSelector } from "@/components/TemplateSelector";
+import type { NoteTemplate } from "@/utils/noteTemplates";
+import { AdvancedSearch, type SearchFilters, type TagOption } from "@/components/AdvancedSearch";
+import { KanbanBoard } from "@/components/KanbanBoard";
+import TagsService from "@/services/TagsService";
 
 const NOTES_PER_PAGE = 10;
 
 export default function NotesPage() {
   const [notes, setNotes] = useState<Note[]>([]);
   const [searchQuery, setSearchQuery] = useState("");
+  const [searchFilters, setSearchFilters] = useState<SearchFilters>({
+    tags: [],
+    dateFrom: undefined,
+    dateTo: undefined,
+    hasTodos: undefined,
+    hasImages: undefined,
+    hasFiles: undefined,
+    priority: undefined
+  });
   const [showArchived, setShowArchived] = useState(false);
   const [page, setPage] = useState(0);
+  const [templateSelectorOpen, setTemplateSelectorOpen] = useState(false);
+  const [viewMode, setViewMode] = useState<'list' | 'kanban'>('list');
   const navigate = useNavigate();
 
   const loadNotes = async () => {
@@ -31,13 +47,71 @@ export default function NotesPage() {
     loadNotes();
   }, []);
 
+  // Extract unique tags from all notes
+  const availableTags: TagOption[] = Array.from(
+    new Map(
+      notes.flatMap(note =>
+        (note.tags || []).map(tag => [tag.name, { id: tag.id!, name: tag.name }])
+      )
+    ).values()
+  ).sort((a, b) => a.name.localeCompare(b.name));
+
   const filteredNotes = notes
     .filter(note => {
-      const matchArchived = showArchived ? note.archived : !note.archived;
-      const matchSearch = searchQuery === "" ||
-        note.title?.toLowerCase().includes(searchQuery.toLowerCase()) ||
-        note.content?.toLowerCase().includes(searchQuery.toLowerCase());
-      return matchArchived && matchSearch;
+      // Archived filter
+      if (showArchived ? !note.archived : note.archived) return false;
+
+      // Text search
+      if (searchQuery !== "" &&
+        !(note.title?.toLowerCase().includes(searchQuery.toLowerCase())) &&
+        !(note.content?.toLowerCase().includes(searchQuery.toLowerCase()))) {
+        return false;
+      }
+
+      // Tags filter
+      if (searchFilters.tags.length > 0) {
+        const noteTags = (note.tags || []).map(t => t.name);
+        if (!searchFilters.tags.some(filterTag => noteTags.includes(filterTag))) {
+          return false;
+        }
+      }
+
+      // Date range filter
+      if (searchFilters.dateFrom || searchFilters.dateTo) {
+        const noteDate = new Date(note.updated_at || note.created_at || 0);
+        if (searchFilters.dateFrom) {
+          const fromDate = new Date(searchFilters.dateFrom);
+          fromDate.setHours(0, 0, 0, 0);
+          if (noteDate < fromDate) return false;
+        }
+        if (searchFilters.dateTo) {
+          const toDate = new Date(searchFilters.dateTo);
+          toDate.setHours(23, 59, 59, 999);
+          if (noteDate > toDate) return false;
+        }
+      }
+
+      // Has todos filter
+      if (searchFilters.hasTodos && (!note.todos || note.todos.length === 0)) {
+        return false;
+      }
+
+      // Has images filter
+      if (searchFilters.hasImages && (!note.images || note.images.length === 0)) {
+        return false;
+      }
+
+      // Has files filter
+      if (searchFilters.hasFiles && (!note.files || note.files.length === 0)) {
+        return false;
+      }
+
+      // Priority filter
+      if (searchFilters.priority && !note.priority) {
+        return false;
+      }
+
+      return true;
     })
     .sort((a, b) => {
       if (a.priority && !b.priority) return -1;
@@ -48,10 +122,24 @@ export default function NotesPage() {
   const totalPages = Math.ceil(filteredNotes.length / NOTES_PER_PAGE);
   const paginatedNotes = filteredNotes.slice(page * NOTES_PER_PAGE, (page + 1) * NOTES_PER_PAGE);
 
-  const handleCreateNote = async () => {
+  const handleCreateNote = () => {
+    setTemplateSelectorOpen(true);
+  };
+
+  const handleCreateNoteFromTemplate = async (template: NoteTemplate) => {
     try {
-      const newNote = await NotesService.createNote("Nouvelle note", "");
-      navigate(`/mobile/notes/${newNote.id}`);
+      const title = template.name === "Note vide" ? "Nouvelle note" : template.name;
+      const newNote = await NotesService.createNote(title, template.content);
+      if (newNote) {
+        // Add todos if template has any
+        if (template.todos && template.todos.length > 0) {
+          for (const todo of template.todos) {
+            await NotesService.addTodo(newNote.id!, todo.text);
+          }
+        }
+        showSuccess("Note créée depuis le template");
+        navigate(`/mobile/notes/${newNote.id}`);
+      }
     } catch (error) {
       showError("Erreur lors de la création de la note");
     }
@@ -89,6 +177,16 @@ export default function NotesPage() {
           />
         </div>
 
+        {/* Advanced Filters */}
+        <AdvancedSearch
+          filters={searchFilters}
+          onFiltersChange={(newFilters) => {
+            setSearchFilters(newFilters);
+            setPage(0);
+          }}
+          availableTags={availableTags}
+        />
+
         {/* Filter Tabs */}
         <div className="flex gap-2">
           <Button
@@ -114,9 +212,32 @@ export default function NotesPage() {
             Archivées ({notes.filter(n => n.archived).length})
           </Button>
         </div>
+
+        {/* View Mode Toggle */}
+        <div className="flex gap-1 border rounded-md p-1">
+          <Button
+            variant={viewMode === 'list' ? 'default' : 'ghost'}
+            size="sm"
+            onClick={() => setViewMode('list')}
+            className="flex-1 gap-2"
+          >
+            <List className="h-4 w-4" />
+            Liste
+          </Button>
+          <Button
+            variant={viewMode === 'kanban' ? 'default' : 'ghost'}
+            size="sm"
+            onClick={() => setViewMode('kanban')}
+            className="flex-1 gap-2"
+          >
+            <LayoutGrid className="h-4 w-4" />
+            Kanban
+          </Button>
+        </div>
       </div>
 
-      {/* Notes List */}
+      {/* Notes View - List or Kanban */}
+      {viewMode === 'list' ? (
       <div className="p-4 space-y-3">
         {paginatedNotes.length > 0 ? (
           paginatedNotes.map(note => (
@@ -209,35 +330,76 @@ export default function NotesPage() {
             )}
           </div>
         )}
-      </div>
 
-      {/* Pagination */}
-      {totalPages > 1 && (
-        <div className="flex items-center justify-center gap-4 px-4 pb-4">
-          <Button
-            variant="ghost"
-            size="sm"
-            onClick={() => setPage(p => Math.max(0, p - 1))}
-            disabled={page === 0}
-          >
-            ‹ Précédent
-          </Button>
-          <span className="text-sm text-muted-foreground">
-            {page + 1} / {totalPages}
-          </span>
-          <Button
-            variant="ghost"
-            size="sm"
-            onClick={() => setPage(p => Math.min(totalPages - 1, p + 1))}
-            disabled={page === totalPages - 1}
-          >
-            Suivant ›
-          </Button>
+        {/* Pagination */}
+        {totalPages > 1 && (
+          <div className="flex items-center justify-center gap-4 px-4 pb-4">
+            <Button
+              variant="ghost"
+              size="sm"
+              onClick={() => setPage(p => Math.max(0, p - 1))}
+              disabled={page === 0}
+            >
+              ‹ Précédent
+            </Button>
+            <span className="text-sm text-muted-foreground">
+              {page + 1} / {totalPages}
+            </span>
+            <Button
+              variant="ghost"
+              size="sm"
+              onClick={() => setPage(p => Math.min(totalPages - 1, p + 1))}
+              disabled={page === totalPages - 1}
+            >
+              Suivant ›
+            </Button>
+          </div>
+        )}
+      </div>
+      ) : (
+        /* Kanban View */
+        <div className="p-2 overflow-x-auto">
+          <KanbanBoard
+            notes={filteredNotes}
+            onNoteClick={(note) => navigate(`/mobile/notes/${note.id}`)}
+            onCreateNote={(columnId) => {
+              setTemplateSelectorOpen(true);
+            }}
+            onMoveNote={async (noteId, newStatus) => {
+              const note = notes.find(n => n.id === noteId);
+              if (!note) return;
+
+              // Remove old status tags
+              const oldStatusTags = note.tags?.filter(tag =>
+                ['backlog', 'todo', 'in_progress', 'review', 'done'].includes(tag.name.toLowerCase())
+              ) || [];
+
+              for (const tag of oldStatusTags) {
+                if (tag.id && note.id) {
+                  await TagsService.deleteTag(note.id, tag.id);
+                }
+              }
+
+              // Add new status tag
+              if (note.id) {
+                await TagsService.addTag(note.id, newStatus);
+                await loadNotes();
+                showSuccess(`Note déplacée vers ${newStatus}`);
+              }
+            }}
+          />
         </div>
       )}
 
       {/* FAB */}
       <MobileFAB icon={Plus} onClick={handleCreateNote} label="Créer une note" />
+
+      {/* Template Selector */}
+      <TemplateSelector
+        open={templateSelectorOpen}
+        onOpenChange={setTemplateSelectorOpen}
+        onSelectTemplate={handleCreateNoteFromTemplate}
+      />
     </div>
   );
 }

src/pages/mobile/SettingsPage.tsx

@@ -4,6 +4,7 @@ import { Button } from "@/components/ui/button";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 import { Switch } from "@/components/ui/switch";
 import { Label } from "@/components/ui/label";
+import { RadioGroup, RadioGroupItem } from "@/components/ui/radio-group";
 import {
   User,
   LogOut,
@@ -53,10 +54,6 @@ export default function SettingsPage() {
     }
   };
 
-  const toggleTheme = () => {
-    setTheme(theme === "dark" ? "light" : "dark");
-  };
-
   return (
     <div className="p-4 space-y-6 pb-24">
       {/* Appearance */}
@@ -68,16 +65,29 @@ export default function SettingsPage() {
           </CardTitle>
         </CardHeader>
         <CardContent>
-          <div className="flex items-center justify-between">
-            <Label htmlFor="dark-mode" className="text-base">
-              Mode sombre
-            </Label>
-            <Switch
-              id="dark-mode"
-              checked={theme === "dark"}
-              onCheckedChange={toggleTheme}
-            />
-          </div>
+          <RadioGroup value={theme} onValueChange={(value) => setTheme(value as "light" | "dark" | "system")}>
+            <div className="flex items-center space-x-2 mb-3">
+              <RadioGroupItem value="light" id="light" />
+              <Label htmlFor="light" className="text-base font-normal cursor-pointer flex items-center gap-2">
+                <Sun className="h-4 w-4" />
+                Clair
+              </Label>
+            </div>
+            <div className="flex items-center space-x-2 mb-3">
+              <RadioGroupItem value="dark" id="dark" />
+              <Label htmlFor="dark" className="text-base font-normal cursor-pointer flex items-center gap-2">
+                <Moon className="h-4 w-4" />
+                Sombre
+              </Label>
+            </div>
+            <div className="flex items-center space-x-2">
+              <RadioGroupItem value="system" id="system" />
+              <Label htmlFor="system" className="text-base font-normal cursor-pointer flex items-center gap-2">
+                <User className="h-4 w-4" />
+                Système
+              </Label>
+            </div>
+          </RadioGroup>
         </CardContent>
       </Card>
 

src/services/NotesService.ts

@@ -6,6 +6,9 @@ interface Todo {
   text: string;
   completed: boolean;
   position?: number;
+  due_date?: string;
+  parent_id?: number;
+  level?: number;
 }
 
 interface Image {
@@ -221,12 +224,17 @@ class NotesService {
   }
 
   // Todo management methods
-  async addTodo(noteId: number, text: string): Promise<Todo | null> {
+  async addTodo(noteId: number, text: string, dueDate?: string): Promise<Todo | null> {
     try {
+      const payload: any = { text };
+      if (dueDate) {
+        payload.due_date = dueDate;
+      }
+
       const response = await fetch(`/api/notes/${noteId}/todos`, {
         method: "POST",
         headers: AuthService.getHeaders(),
-        body: JSON.stringify({ text })
+        body: JSON.stringify(payload)
       });
 
       if (!response.ok) {

src/services/TodosService.ts

@@ -33,9 +33,13 @@ class TodosService {
     }
   }
 
-  async createTodo(text: string, priority?: boolean): Promise<Todo> {
+  async createTodo(text: string, priority?: boolean, dueDate?: string): Promise<Todo> {
     try {
-      const response = await axios.post(this.baseURL, { text, priority: priority || false, completed: false }, this.getAuthHeader());
+      const payload: any = { text, priority: priority || false, completed: false };
+      if (dueDate) {
+        payload.due_date = dueDate;
+      }
+      const response = await axios.post(this.baseURL, payload, this.getAuthHeader());
       return response.data;
     } catch (error) {
       console.error('Error creating todo:', error);

src/utils/exportImport.ts

@@ -0,0 +1,163 @@
+import { Note } from "@/services/NotesService";
+import { Todo } from "@/services/TodosService";
+
+export interface BackupData {
+  version: string;
+  exportDate: string;
+  notes: Note[];
+  globalTodos: Todo[];
+  settings?: Record<string, any>;
+}
+
+/**
+ * Export all app data to JSON
+ */
+export async function exportToJSON(
+  notes: Note[],
+  globalTodos: Todo[],
+  settings?: Record<string, any>
+): Promise<string> {
+  const backup: BackupData = {
+    version: "1.0.0",
+    exportDate: new Date().toISOString(),
+    notes,
+    globalTodos,
+    settings
+  };
+
+  return JSON.stringify(backup, null, 2);
+}
+
+/**
+ * Download backup as JSON file
+ */
+export function downloadBackup(jsonData: string, filename?: string): void {
+  const blob = new Blob([jsonData], { type: 'application/json' });
+  const url = URL.createObjectURL(blob);
+  const link = document.createElement('a');
+
+  const timestamp = new Date().toISOString().split('T')[0];
+  link.href = url;
+  link.download = filename || `noteflow-backup-${timestamp}.json`;
+
+  document.body.appendChild(link);
+  link.click();
+  document.body.removeChild(link);
+
+  URL.revokeObjectURL(url);
+}
+
+/**
+ * Parse and validate backup JSON
+ */
+export function parseBackupJSON(jsonString: string): BackupData | null {
+  try {
+    const data = JSON.parse(jsonString);
+
+    // Validate structure
+    if (!data.version || !data.exportDate || !Array.isArray(data.notes)) {
+      throw new Error('Format de backup invalide');
+    }
+
+    return data as BackupData;
+  } catch (error) {
+    console.error('Error parsing backup:', error);
+    return null;
+  }
+}
+
+/**
+ * Read file as text
+ */
+export function readFileAsText(file: File): Promise<string> {
+  return new Promise((resolve, reject) => {
+    const reader = new FileReader();
+
+    reader.onload = (e) => {
+      if (e.target?.result) {
+        resolve(e.target.result as string);
+      } else {
+        reject(new Error('Failed to read file'));
+      }
+    };
+
+    reader.onerror = () => {
+      reject(new Error('File reading error'));
+    };
+
+    reader.readAsText(file);
+  });
+}
+
+/**
+ * Export notes to CSV format
+ */
+export function exportNotesToCSV(notes: Note[]): string {
+  const headers = ['ID', 'Title', 'Created', 'Updated', 'Archived', 'Priority', 'Tags', 'Todos Count'];
+
+  const rows = notes.map(note => [
+    note.id || '',
+    `"${(note.title || '').replace(/"/g, '""')}"`,
+    note.created_at || '',
+    note.updated_at || '',
+    note.archived ? 'Yes' : 'No',
+    note.priority ? 'Yes' : 'No',
+    `"${(note.tags || []).map(t => t.name).join(', ')}"`,
+    (note.todos || []).length
+  ]);
+
+  const csv = [
+    headers.join(','),
+    ...rows.map(row => row.join(','))
+  ].join('\n');
+
+  return csv;
+}
+
+/**
+ * Download CSV file
+ */
+export function downloadCSV(csvData: string, filename?: string): void {
+  const blob = new Blob([csvData], { type: 'text/csv;charset=utf-8;' });
+  const url = URL.createObjectURL(blob);
+  const link = document.createElement('a');
+
+  const timestamp = new Date().toISOString().split('T')[0];
+  link.href = url;
+  link.download = filename || `noteflow-export-${timestamp}.csv`;
+
+  document.body.appendChild(link);
+  link.click();
+  document.body.removeChild(link);
+
+  URL.revokeObjectURL(url);
+}
+
+/**
+ * Get backup statistics
+ */
+export function getBackupStats(backup: BackupData): {
+  notesCount: number;
+  todosCount: number;
+  tagsCount: number;
+  imagesCount: number;
+  filesCount: number;
+} {
+  const allTags = new Set<string>();
+  let imagesCount = 0;
+  let filesCount = 0;
+
+  backup.notes.forEach(note => {
+    note.tags?.forEach(tag => allTags.add(tag.name));
+    imagesCount += (note.images?.length || 0);
+    filesCount += (note.files?.length || 0);
+  });
+
+  return {
+    notesCount: backup.notes.length,
+    todosCount: backup.globalTodos?.length || 0,
+    tagsCount: allTags.size,
+    imagesCount,
+    filesCount
+  };
+}

src/utils/markdownExport.ts

@@ -0,0 +1,241 @@
+import { Note } from "@/services/NotesService";
+import { Todo } from "@/services/TodosService";
+
+/**
+ * Convertit le contenu HTML d'une note en Markdown
+ */
+function htmlToMarkdown(html: string): string {
+  let markdown = html;
+
+  // Enlever les balises HTML simples et les convertir en Markdown
+  markdown = markdown
+    // Headings
+    .replace(/<h1[^>]*>(.*?)<\/h1>/g, '# $1\n')
+    .replace(/<h2[^>]*>(.*?)<\/h2>/g, '## $1\n')
+    .replace(/<h3[^>]*>(.*?)<\/h3>/g, '### $1\n')
+    // Bold and italic
+    .replace(/<strong[^>]*>(.*?)<\/strong>/g, '**$1**')
+    .replace(/<b[^>]*>(.*?)<\/b>/g, '**$1**')
+    .replace(/<em[^>]*>(.*?)<\/em>/g, '*$1*')
+    .replace(/<i[^>]*>(.*?)<\/i>/g, '*$1*')
+    // Lists
+    .replace(/<ul[^>]*>/g, '\n')
+    .replace(/<\/ul>/g, '\n')
+    .replace(/<ol[^>]*>/g, '\n')
+    .replace(/<\/ol>/g, '\n')
+    .replace(/<li[^>]*>(.*?)<\/li>/g, '- $1\n')
+    // Paragraphs and breaks
+    .replace(/<p[^>]*>/g, '\n')
+    .replace(/<\/p>/g, '\n')
+    .replace(/<br\s*\/?>/g, '\n')
+    // Links
+    .replace(/<a[^>]*href="([^"]*)"[^>]*>(.*?)<\/a>/g, '[$2]($1)')
+    // Code
+    .replace(/<code[^>]*>(.*?)<\/code>/g, '`$1`')
+    .replace(/<pre[^>]*>(.*?)<\/pre>/g, '```\n$1\n```')
+    // Remove remaining HTML tags
+    .replace(/<[^>]*>/g, '')
+    // Decode HTML entities
+    .replace(/&nbsp;/g, ' ')
+    .replace(/&amp;/g, '&')
+    .replace(/&lt;/g, '<')
+    .replace(/&gt;/g, '>')
+    .replace(/&quot;/g, '"')
+    .replace(/&#39;/g, "'")
+    // Clean up extra whitespace
+    .replace(/\n{3,}/g, '\n\n')
+    .trim();
+
+  return markdown;
+}
+
+/**
+ * Exporte une note au format Markdown
+ */
+export function exportNoteAsMarkdown(note: Note): string {
+  let markdown = '';
+
+  // Title
+  markdown += `# ${note.title || 'Sans titre'}\n\n`;
+
+  // Metadata
+  if (note.created_at) {
+    const date = new Date(note.created_at);
+    markdown += `*Créée le: ${date.toLocaleDateString('fr-FR')} à ${date.toLocaleTimeString('fr-FR')}*\n\n`;
+  }
+
+  // Tags
+  if (note.tags && note.tags.length > 0) {
+    markdown += `**Tags:** ${note.tags.map(tag => `#${tag.name}`).join(', ')}\n\n`;
+  }
+
+  // Priority
+  if (note.priority) {
+    markdown += `⭐ **Prioritaire**\n\n`;
+  }
+
+  // Separator
+  markdown += '---\n\n';
+
+  // Content
+  if (note.content) {
+    markdown += htmlToMarkdown(note.content);
+    markdown += '\n\n';
+  }
+
+  // Todos
+  if (note.todos && note.todos.length > 0) {
+    markdown += '## Tâches\n\n';
+    note.todos.forEach(todo => {
+      const checkbox = todo.completed ? '[x]' : '[ ]';
+      markdown += `- ${checkbox} ${todo.text}\n`;
+    });
+    markdown += '\n';
+  }
+
+  // Images
+  if (note.images && note.images.length > 0) {
+    markdown += '## Images\n\n';
+    note.images.forEach(image => {
+      markdown += `![${image.original_name || 'Image'}](/uploads/images/${image.filename})\n`;
+    });
+    markdown += '\n';
+  }
+
+  return markdown;
+}
+
+/**
+ * Télécharge une note au format Markdown
+ */
+export function downloadNoteAsMarkdown(note: Note): void {
+  const markdown = exportNoteAsMarkdown(note);
+  const blob = new Blob([markdown], { type: 'text/markdown;charset=utf-8' });
+  const url = URL.createObjectURL(blob);
+  const link = document.createElement('a');
+  link.href = url;
+  link.download = `${note.title || 'note'}.md`;
+  document.body.appendChild(link);
+  link.click();
+  document.body.removeChild(link);
+  URL.revokeObjectURL(url);
+}
+
+/**
+ * Exporte toutes les notes au format Markdown (un fichier par note dans un zip)
+ */
+export function exportAllNotesAsMarkdown(notes: Note[]): string {
+  let combined = `# Mes Notes\n\n`;
+  combined += `*Exporté le ${new Date().toLocaleDateString('fr-FR')} à ${new Date().toLocaleTimeString('fr-FR')}*\n\n`;
+  combined += `---\n\n`;
+
+  notes.forEach((note, index) => {
+    if (index > 0) {
+      combined += `\n\n---\n\n`;
+    }
+    combined += exportNoteAsMarkdown(note);
+  });
+
+  return combined;
+}
+
+/**
+ * Télécharge toutes les notes dans un fichier Markdown
+ */
+export function downloadAllNotesAsMarkdown(notes: Note[]): void {
+  const markdown = exportAllNotesAsMarkdown(notes);
+  const blob = new Blob([markdown], { type: 'text/markdown;charset=utf-8' });
+  const url = URL.createObjectURL(blob);
+  const link = document.createElement('a');
+  link.href = url;
+  const filename = `noteflow-export-${new Date().toISOString().split('T')[0]}.md`;
+  link.download = filename;
+  document.body.appendChild(link);
+  link.click();
+  document.body.removeChild(link);
+  URL.revokeObjectURL(url);
+}
+
+/**
+ * Exporte un todo au format Markdown
+ */
+export function exportTodoAsMarkdown(todo: Todo): string {
+  const checkbox = todo.completed ? '[x]' : '[ ]';
+  let markdown = `- ${checkbox} ${todo.text}`;
+
+  if (todo.priority) {
+    markdown += ' ⭐';
+  }
+
+  if (todo.in_progress) {
+    markdown += ' 🔄';
+  }
+
+  return markdown;
+}
+
+/**
+ * Exporte tous les todos au format Markdown
+ */
+export function exportTodosAsMarkdown(todos: Todo[]): string {
+  let markdown = '# Mes Tâches\n\n';
+  markdown += `*Exporté le ${new Date().toLocaleDateString('fr-FR')} à ${new Date().toLocaleTimeString('fr-FR')}*\n\n`;
+
+  // Tâches prioritaires
+  const priorityTodos = todos.filter(t => t.priority && !t.completed);
+  if (priorityTodos.length > 0) {
+    markdown += '## ⭐ Prioritaires\n\n';
+    priorityTodos.forEach(todo => {
+      markdown += exportTodoAsMarkdown(todo) + '\n';
+    });
+    markdown += '\n';
+  }
+
+  // Tâches en cours
+  const inProgressTodos = todos.filter(t => t.in_progress && !t.completed);
+  if (inProgressTodos.length > 0) {
+    markdown += '## 🔄 En cours\n\n';
+    inProgressTodos.forEach(todo => {
+      markdown += exportTodoAsMarkdown(todo) + '\n';
+    });
+    markdown += '\n';
+  }
+
+  // Tâches en attente
+  const pendingTodos = todos.filter(t => !t.completed && !t.priority && !t.in_progress);
+  if (pendingTodos.length > 0) {
+    markdown += '## 📋 En attente\n\n';
+    pendingTodos.forEach(todo => {
+      markdown += exportTodoAsMarkdown(todo) + '\n';
+    });
+    markdown += '\n';
+  }
+
+  // Tâches terminées
+  const completedTodos = todos.filter(t => t.completed);
+  if (completedTodos.length > 0) {
+    markdown += '## ✅ Terminées\n\n';
+    completedTodos.forEach(todo => {
+      markdown += exportTodoAsMarkdown(todo) + '\n';
+    });
+  }
+
+  return markdown;
+}
+
+/**
+ * Télécharge tous les todos au format Markdown
+ */
+export function downloadTodosAsMarkdown(todos: Todo[]): void {
+  const markdown = exportTodosAsMarkdown(todos);
+  const blob = new Blob([markdown], { type: 'text/markdown;charset=utf-8' });
+  const url = URL.createObjectURL(blob);
+  const link = document.createElement('a');
+  link.href = url;
+  const filename = `noteflow-todos-${new Date().toISOString().split('T')[0]}.md`;
+  link.download = filename;
+  document.body.appendChild(link);
+  link.click();
+  document.body.removeChild(link);
+  URL.revokeObjectURL(url);
+}

src/utils/noteLinks.ts

@@ -0,0 +1,187 @@
+import { Note } from "@/services/NotesService";
+
+/**
+ * Pattern to match wiki-style links: [[Note Title]]
+ */
+const WIKI_LINK_PATTERN = /\[\[([^\]]+)\]\]/g;
+
+/**
+ * Extract all note links from content
+ */
+export function extractNoteLinks(content: string): string[] {
+  if (!content) return [];
+
+  const matches = content.matchAll(WIKI_LINK_PATTERN);
+  const links: string[] = [];
+
+  for (const match of matches) {
+    if (match[1]) {
+      links.push(match[1].trim());
+    }
+  }
+
+  return [...new Set(links)]; // Remove duplicates
+}
+
+/**
+ * Find notes that match the given link text
+ */
+export function findLinkedNotes(linkText: string, allNotes: Note[]): Note[] {
+  const searchText = linkText.toLowerCase().trim();
+
+  return allNotes.filter(note => {
+    if (!note.title) return false;
+    return note.title.toLowerCase().includes(searchText);
+  });
+}
+
+/**
+ * Convert wiki-style links to HTML clickable links
+ */
+export function convertLinksToHTML(
+  content: string,
+  allNotes: Note[],
+  onLinkClick: (noteId: number) => void
+): string {
+  if (!content) return '';
+
+  return content.replace(WIKI_LINK_PATTERN, (match, linkText) => {
+    const trimmedText = linkText.trim();
+    const matchedNotes = findLinkedNotes(trimmedText, allNotes);
+
+    if (matchedNotes.length > 0) {
+      // Found matching note - create clickable link
+      const note = matchedNotes[0];
+      return `<a
+        href="#"
+        class="note-link"
+        data-note-id="${note.id}"
+        style="color: #3b82f6; text-decoration: underline; cursor: pointer;"
+        title="Ouvrir: ${note.title}"
+      >${trimmedText}</a>`;
+    } else {
+      // No matching note - show as grayed out
+      return `<span
+        class="note-link-broken"
+        style="color: #9ca3af; text-decoration: line-through;"
+        title="Note introuvable: ${trimmedText}"
+      >[[${trimmedText}]]</span>`;
+    }
+  });
+}
+
+/**
+ * Get backlinks for a note (notes that link to this one)
+ */
+export function getBacklinks(note: Note, allNotes: Note[]): Note[] {
+  if (!note.title) return [];
+
+  const backlinks: Note[] = [];
+  const noteTitle = note.title.toLowerCase();
+
+  for (const otherNote of allNotes) {
+    if (otherNote.id === note.id || !otherNote.content) continue;
+
+    const links = extractNoteLinks(otherNote.content);
+    const hasLink = links.some(link =>
+      link.toLowerCase().includes(noteTitle) ||
+      noteTitle.includes(link.toLowerCase())
+    );
+
+    if (hasLink) {
+      backlinks.push(otherNote);
+    }
+  }
+
+  return backlinks;
+}
+
+/**
+ * Suggest note titles for autocomplete when typing [[
+ */
+export function suggestNoteTitles(
+  partialText: string,
+  allNotes: Note[],
+  limit = 10
+): Note[] {
+  if (!partialText) {
+    // Return recent notes when no search text
+    return allNotes
+      .filter(note => note.title && !note.archived)
+      .sort((a, b) =>
+        new Date(b.updated_at || 0).getTime() - new Date(a.updated_at || 0).getTime()
+      )
+      .slice(0, limit);
+  }
+
+  const searchText = partialText.toLowerCase().trim();
+
+  // Find notes matching the partial text
+  const matches = allNotes
+    .filter(note => {
+      if (!note.title || note.archived) return false;
+      return note.title.toLowerCase().includes(searchText);
+    })
+    .sort((a, b) => {
+      // Prioritize exact matches and more recent notes
+      const aTitle = a.title?.toLowerCase() || '';
+      const bTitle = b.title?.toLowerCase() || '';
+
+      const aExact = aTitle === searchText ? 1 : 0;
+      const bExact = bTitle === searchText ? 1 : 0;
+
+      if (aExact !== bExact) return bExact - aExact;
+
+      const aStarts = aTitle.startsWith(searchText) ? 1 : 0;
+      const bStarts = bTitle.startsWith(searchText) ? 1 : 0;
+
+      if (aStarts !== bStarts) return bStarts - aStarts;
+
+      // Fall back to recency
+      return new Date(b.updated_at || 0).getTime() - new Date(a.updated_at || 0).getTime();
+    });
+
+  return matches.slice(0, limit);
+}
+
+/**
+ * Parse content and detect cursor position for link autocomplete
+ * Returns the partial link text if cursor is inside a [[...]] pattern
+ */
+export function detectLinkAtCursor(content: string, cursorPosition: number): {
+  isInLink: boolean;
+  linkText: string;
+  startPos: number;
+  endPos: number;
+} | null {
+  // Find all [[ positions before cursor
+  const beforeCursor = content.substring(0, cursorPosition);
+  const lastOpenBracket = beforeCursor.lastIndexOf('[[');
+
+  if (lastOpenBracket === -1) {
+    return null; // Not in a link
+  }
+
+  // Check if there's a closing ]] between lastOpenBracket and cursor
+  const betweenBrackets = content.substring(lastOpenBracket, cursorPosition);
+  if (betweenBrackets.includes(']]')) {
+    return null; // Link is already closed
+  }
+
+  // Find the closing ]] after cursor (if any)
+  const afterCursor = content.substring(cursorPosition);
+  const nextCloseBracket = afterCursor.indexOf(']]');
+  const endPos = nextCloseBracket !== -1
+    ? cursorPosition + nextCloseBracket + 2
+    : cursorPosition;
+
+  // Extract the link text
+  const linkText = content.substring(lastOpenBracket + 2, cursorPosition).trim();
+
+  return {
+    isInLink: true,
+    linkText,
+    startPos: lastOpenBracket,
+    endPos
+  };
+}

src/utils/noteTemplates.ts

@@ -0,0 +1,363 @@
+export interface NoteTemplate {
+  id: string;
+  name: string;
+  description: string;
+  icon: string;
+  category: string;
+  content: string;
+  todos?: Array<{ text: string; completed: boolean }>;
+}
+
+export const DEFAULT_TEMPLATES: NoteTemplate[] = [
+  {
+    id: 'blank',
+    name: 'Note vide',
+    description: 'Commencer avec une page blanche',
+    icon: '📄',
+    category: 'Général',
+    content: '',
+    todos: []
+  },
+  {
+    id: 'meeting',
+    name: 'Réunion',
+    description: 'Notes de réunion structurées',
+    icon: '🤝',
+    category: 'Travail',
+    content: `<h2>Réunion - [Titre]</h2>
+<p><strong>Date:</strong> ${new Date().toLocaleDateString('fr-FR')}</p>
+<p><strong>Participants:</strong> </p>
+<p><strong>Objectif:</strong> </p>
+
+<h3>Points discutés</h3>
+<p>1. </p>
+<p>2. </p>
+<p>3. </p>
+
+<h3>Décisions</h3>
+<p>• </p>
+
+<h3>Prochaines étapes</h3>
+<p>→ </p>`,
+    todos: [
+      { text: 'Envoyer le compte-rendu', completed: false },
+      { text: 'Planifier le suivi', completed: false }
+    ]
+  },
+  {
+    id: 'daily-journal',
+    name: 'Journal quotidien',
+    description: 'Réflexions et gratitude du jour',
+    icon: '📔',
+    category: 'Personnel',
+    content: `<h2>Journal - ${new Date().toLocaleDateString('fr-FR', { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' })}</h2>
+
+<h3>🌅 Ce matin je me sens...</h3>
+<p></p>
+
+<h3>🎯 Mes priorités aujourd'hui</h3>
+<p>1. </p>
+<p>2. </p>
+<p>3. </p>
+
+<h3>💡 Idées et réflexions</h3>
+<p></p>
+
+<h3>🙏 Gratitude</h3>
+<p>Aujourd'hui je suis reconnaissant(e) pour:</p>
+<p>• </p>
+
+<h3>🌙 Bilan de la journée</h3>
+<p></p>`,
+    todos: []
+  },
+  {
+    id: 'project-planning',
+    name: 'Planification de projet',
+    description: 'Organiser un nouveau projet',
+    icon: '🎯',
+    category: 'Travail',
+    content: `<h2>Projet - [Nom du projet]</h2>
+
+<h3>📋 Vue d'ensemble</h3>
+<p><strong>Objectif:</strong> </p>
+<p><strong>Deadline:</strong> </p>
+<p><strong>Responsable:</strong> </p>
+
+<h3>🎯 Objectifs</h3>
+<p>1. </p>
+<p>2. </p>
+<p>3. </p>
+
+<h3>📊 Phases du projet</h3>
+<p><strong>Phase 1:</strong> Préparation</p>
+<p>• </p>
+
+<p><strong>Phase 2:</strong> Développement</p>
+<p>• </p>
+
+<p><strong>Phase 3:</strong> Finalisation</p>
+<p>• </p>
+
+<h3>👥 Équipe</h3>
+<p>• </p>
+
+<h3>⚠️ Risques identifiés</h3>
+<p>• </p>
+
+<h3>📌 Ressources nécessaires</h3>
+<p>• </p>`,
+    todos: [
+      { text: 'Définir le scope', completed: false },
+      { text: 'Assembler l\'équipe', completed: false },
+      { text: 'Créer le planning', completed: false }
+    ]
+  },
+  {
+    id: 'brainstorming',
+    name: 'Brainstorming',
+    description: 'Session de génération d\'idées',
+    icon: '💭',
+    category: 'Créativité',
+    content: `<h2>💭 Brainstorming - [Sujet]</h2>
+
+<p><strong>Date:</strong> ${new Date().toLocaleDateString('fr-FR')}</p>
+<p><strong>Question centrale:</strong> </p>
+
+<h3>💡 Idées</h3>
+<p>1. </p>
+<p>2. </p>
+<p>3. </p>
+<p>4. </p>
+<p>5. </p>
+
+<h3>⭐ Idées à creuser</h3>
+<p>• </p>
+
+<h3>🚀 Actions possibles</h3>
+<p>→ </p>
+
+<h3>🔗 Connexions et insights</h3>
+<p></p>`,
+    todos: []
+  },
+  {
+    id: 'recipe',
+    name: 'Recette de cuisine',
+    description: 'Noter une recette',
+    icon: '👨‍🍳',
+    category: 'Personnel',
+    content: `<h2>🍳 Recette - [Nom du plat]</h2>
+
+<p><strong>⏱️ Temps de préparation:</strong> </p>
+<p><strong>👥 Portions:</strong> </p>
+<p><strong>😋 Difficulté:</strong> Facile / Moyen / Difficile</p>
+
+<h3>📝 Ingrédients</h3>
+<p>• </p>
+
+<h3>👨‍🍳 Préparation</h3>
+<p>1. </p>
+<p>2. </p>
+<p>3. </p>
+
+<h3>💡 Astuces</h3>
+<p>• </p>
+
+<h3>📌 Notes</h3>
+<p></p>`,
+    todos: []
+  },
+  {
+    id: 'weekly-review',
+    name: 'Revue hebdomadaire',
+    description: 'Bilan et planification de la semaine',
+    icon: '📊',
+    category: 'Productivité',
+    content: `<h2>📊 Revue de la semaine</h2>
+<p><strong>Semaine du:</strong> ${new Date().toLocaleDateString('fr-FR')}</p>
+
+<h3>✅ Accomplissements</h3>
+<p>Cette semaine j'ai réussi à:</p>
+<p>1. </p>
+<p>2. </p>
+<p>3. </p>
+
+<h3>📈 Progrès</h3>
+<p>• </p>
+
+<h3>⚠️ Défis rencontrés</h3>
+<p>• </p>
+
+<h3>💡 Leçons apprises</h3>
+<p>• </p>
+
+<h3>🎯 Objectifs semaine prochaine</h3>
+<p>1. </p>
+<p>2. </p>
+<p>3. </p>
+
+<h3>🔄 Habitudes à améliorer</h3>
+<p>• </p>`,
+    todos: [
+      { text: 'Planifier la semaine prochaine', completed: false }
+    ]
+  },
+  {
+    id: 'bug-report',
+    name: 'Rapport de bug',
+    description: 'Documenter un problème technique',
+    icon: '🐛',
+    category: 'Développement',
+    content: `<h2>🐛 Bug Report</h2>
+
+<p><strong>Date:</strong> ${new Date().toLocaleDateString('fr-FR')}</p>
+<p><strong>Priorité:</strong> 🔴 Critique / 🟠 Haute / 🟡 Moyenne / 🟢 Basse</p>
+<p><strong>Statut:</strong> Nouveau / En cours / Résolu</p>
+
+<h3>📋 Description</h3>
+<p></p>
+
+<h3>🔄 Étapes pour reproduire</h3>
+<p>1. </p>
+<p>2. </p>
+<p>3. </p>
+
+<h3>✅ Résultat attendu</h3>
+<p></p>
+
+<h3>❌ Résultat actuel</h3>
+<p></p>
+
+<h3>💻 Environnement</h3>
+<p><strong>OS:</strong> </p>
+<p><strong>Navigateur:</strong> </p>
+<p><strong>Version:</strong> </p>
+
+<h3>📌 Notes additionnelles</h3>
+<p></p>
+
+<h3>🔧 Solution proposée</h3>
+<p></p>`,
+    todos: [
+      { text: 'Reproduire le bug', completed: false },
+      { text: 'Identifier la cause', completed: false },
+      { text: 'Implémenter le fix', completed: false },
+      { text: 'Tester la solution', completed: false }
+    ]
+  },
+  {
+    id: 'learning-notes',
+    name: 'Notes d\'apprentissage',
+    description: 'Apprendre un nouveau sujet',
+    icon: '📚',
+    category: 'Éducation',
+    content: `<h2>📚 Notes d'apprentissage - [Sujet]</h2>
+
+<p><strong>Date:</strong> ${new Date().toLocaleDateString('fr-FR')}</p>
+<p><strong>Source:</strong> </p>
+
+<h3>🎯 Objectifs d'apprentissage</h3>
+<p>• </p>
+
+<h3>📝 Concepts clés</h3>
+<p><strong>Concept 1:</strong> </p>
+<p>• </p>
+
+<p><strong>Concept 2:</strong> </p>
+<p>• </p>
+
+<h3>💡 Exemples</h3>
+<p></p>
+
+<h3>❓ Questions</h3>
+<p>• </p>
+
+<h3>🔗 Ressources</h3>
+<p>• </p>
+
+<h3>📌 À retenir</h3>
+<p>• </p>
+
+<h3>✍️ Pratique</h3>
+<p>Exercices à faire:</p>
+<p>1. </p>`,
+    todos: [
+      { text: 'Réviser les notes', completed: false },
+      { text: 'Faire les exercices', completed: false }
+    ]
+  },
+  {
+    id: 'travel-planning',
+    name: 'Planification de voyage',
+    description: 'Organiser un déplacement',
+    icon: '✈️',
+    category: 'Personnel',
+    content: `<h2>✈️ Voyage - [Destination]</h2>
+
+<p><strong>📅 Dates:</strong> du [date] au [date]</p>
+<p><strong>👥 Voyageurs:</strong> </p>
+<p><strong>💰 Budget:</strong> </p>
+
+<h3>🎒 À emporter</h3>
+<p>Vêtements:</p>
+<p>• </p>
+
+<p>Documents:</p>
+<p>• Passeport</p>
+<p>• Billets</p>
+<p>• Assurance</p>
+
+<h3>🏨 Hébergement</h3>
+<p><strong>Hôtel/Airbnb:</strong> </p>
+<p><strong>Adresse:</strong> </p>
+<p><strong>Check-in:</strong> </p>
+
+<h3>✈️ Transport</h3>
+<p><strong>Vol aller:</strong> </p>
+<p><strong>Vol retour:</strong> </p>
+
+<h3>📍 Lieux à visiter</h3>
+<p>1. </p>
+<p>2. </p>
+<p>3. </p>
+
+<h3>🍽️ Restaurants recommandés</h3>
+<p>• </p>
+
+<h3>💡 Conseils et infos pratiques</h3>
+<p>• </p>`,
+    todos: [
+      { text: 'Réserver les vols', completed: false },
+      { text: 'Réserver l\'hébergement', completed: false },
+      { text: 'Faire la valise', completed: false }
+    ]
+  }
+];
+
+export function getTemplatesByCategory(): Map<string, NoteTemplate[]> {
+  const categorized = new Map<string, NoteTemplate[]>();
+
+  DEFAULT_TEMPLATES.forEach(template => {
+    const category = template.category;
+    if (!categorized.has(category)) {
+      categorized.set(category, []);
+    }
+    categorized.get(category)!.push(template);
+  });
+
+  return categorized;
+}
+
+export function getTemplateById(id: string): NoteTemplate | undefined {
+  return DEFAULT_TEMPLATES.find(t => t.id === id);
+}
+
+export function searchTemplates(query: string): NoteTemplate[] {
+  const lowerQuery = query.toLowerCase();
+  return DEFAULT_TEMPLATES.filter(template =>
+    template.name.toLowerCase().includes(lowerQuery) ||
+    template.description.toLowerCase().includes(lowerQuery) ||
+    template.category.toLowerCase().includes(lowerQuery)
+  );
+}

src/utils/smartTags.ts

@@ -0,0 +1,179 @@
+import { Note } from "@/services/NotesService";
+
+// Common French stop words to filter out
+const FRENCH_STOP_WORDS = new Set([
+  'le', 'la', 'les', 'un', 'une', 'des', 'de', 'du', 'et', 'ou', 'mais', 'donc',
+  'or', 'ni', 'car', 'est', 'sont', 'être', 'avoir', 'a', 'dans', 'sur', 'pour',
+  'par', 'avec', 'sans', 'sous', 'vers', 'chez', 'depuis', 'pendant', 'avant',
+  'après', 'entre', 'parmi', 'selon', 'dont', 'que', 'qui', 'quoi', 'où', 'quand',
+  'comment', 'pourquoi', 'ce', 'cet', 'cette', 'ces', 'mon', 'ton', 'son', 'ma',
+  'ta', 'sa', 'mes', 'tes', 'ses', 'notre', 'votre', 'leur', 'nos', 'vos', 'leurs',
+  'je', 'tu', 'il', 'elle', 'nous', 'vous', 'ils', 'elles', 'on', 'me', 'te', 'se',
+  'lui', 'leur', 'y', 'en', 'ne', 'pas', 'plus', 'moins', 'très', 'trop', 'assez',
+  'beaucoup', 'peu', 'bien', 'mal', 'tout', 'toute', 'tous', 'toutes', 'même',
+  'autre', 'autres', 'tel', 'telle', 'quel', 'quelle', 'quelque', 'plusieurs',
+  'chaque', 'aucun', 'aucune', 'nul', 'nulle', 'certain', 'certaine'
+]);
+
+// Category keywords for auto-tagging
+const CATEGORY_KEYWORDS: Record<string, string[]> = {
+  'travail': ['réunion', 'projet', 'équipe', 'client', 'présentation', 'deadline', 'objectif', 'tâche', 'mission', 'entreprise', 'bureau', 'collègue', 'manager'],
+  'personnel': ['maison', 'famille', 'ami', 'vacances', 'loisir', 'hobby', 'détente', 'week-end', 'anniversaire', 'fête'],
+  'développement': ['code', 'bug', 'feature', 'api', 'database', 'frontend', 'backend', 'git', 'deploy', 'test', 'debug', 'javascript', 'python', 'react', 'node'],
+  'design': ['ui', 'ux', 'interface', 'maquette', 'prototype', 'couleur', 'police', 'layout', 'wireframe', 'mockup', 'figma', 'sketch'],
+  'finance': ['budget', 'dépense', 'économie', 'investissement', 'facture', 'paiement', 'compte', 'banque', 'argent', 'revenu'],
+  'santé': ['sport', 'exercice', 'nutrition', 'médecin', 'santé', 'bien-être', 'fitness', 'régime', 'yoga', 'course'],
+  'formation': ['cours', 'apprentissage', 'étude', 'formation', 'certifica', 'examen', 'leçon', 'tutoriel', 'documentation', 'lecture'],
+  'idée': ['brainstorming', 'innovation', 'créativité', 'concept', 'inspiration', 'réflexion', 'hypothèse', 'proposition'],
+  'urgent': ['urgent', 'important', 'prioritaire', 'asap', 'deadline', 'critique', 'essentiel'],
+  'meeting': ['réunion', 'rendez-vous', 'appel', 'visio', 'conférence', 'présentation', 'démonstration']
+};
+
+/**
+ * Extract keywords from text content
+ */
+export function extractKeywords(text: string, limit = 10): string[] {
+  if (!text) return [];
+
+  // Remove HTML tags
+  const cleanText = text.replace(/<[^>]*>/g, ' ');
+
+  // Convert to lowercase and split into words
+  const words = cleanText
+    .toLowerCase()
+    .replace(/[^\w\sàâäæçéèêëïîôùûüÿœ]/g, ' ')
+    .split(/\s+/)
+    .filter(word => word.length > 3) // Min 4 chars
+    .filter(word => !FRENCH_STOP_WORDS.has(word));
+
+  // Count word frequency
+  const frequency = new Map<string, number>();
+  words.forEach(word => {
+    frequency.set(word, (frequency.get(word) || 0) + 1);
+  });
+
+  // Sort by frequency and take top N
+  return Array.from(frequency.entries())
+    .sort((a, b) => b[1] - a[1])
+    .slice(0, limit)
+    .map(([word]) => word);
+}
+
+/**
+ * Suggest category tags based on content
+ */
+export function suggestCategoryTags(text: string): string[] {
+  if (!text) return [];
+
+  const cleanText = text.toLowerCase().replace(/<[^>]*>/g, ' ');
+  const suggestions: string[] = [];
+
+  for (const [category, keywords] of Object.entries(CATEGORY_KEYWORDS)) {
+    // Check if any category keyword appears in the text
+    const matches = keywords.filter(keyword =>
+      cleanText.includes(keyword.toLowerCase())
+    );
+
+    // If multiple matches, suggest this category
+    if (matches.length >= 2) {
+      suggestions.push(category);
+    }
+  }
+
+  return suggestions;
+}
+
+/**
+ * Suggest tags based on existing tags from similar notes
+ */
+export function suggestFromSimilarNotes(
+  currentNote: Note,
+  allNotes: Note[],
+  limit = 5
+): string[] {
+  if (!currentNote.title && !currentNote.content) return [];
+
+  const currentKeywords = extractKeywords(
+    `${currentNote.title || ''} ${currentNote.content || ''}`,
+    15
+  );
+
+  if (currentKeywords.length === 0) return [];
+
+  // Find notes with similar keywords
+  const noteSimilarity = allNotes
+    .filter(note => note.id !== currentNote.id && note.tags && note.tags.length > 0)
+    .map(note => {
+      const noteKeywords = extractKeywords(
+        `${note.title || ''} ${note.content || ''}`,
+        15
+      );
+
+      // Calculate similarity (common keywords / total unique keywords)
+      const commonKeywords = currentKeywords.filter(kw =>
+        noteKeywords.includes(kw)
+      ).length;
+
+      const totalKeywords = new Set([...currentKeywords, ...noteKeywords]).size;
+      const similarity = totalKeywords > 0 ? commonKeywords / totalKeywords : 0;
+
+      return {
+        note,
+        similarity
+      };
+    })
+    .filter(item => item.similarity > 0.2) // Min 20% similarity
+    .sort((a, b) => b.similarity - a.similarity)
+    .slice(0, 5); // Top 5 similar notes
+
+  // Extract tags from similar notes
+  const tagFrequency = new Map<string, number>();
+  noteSimilarity.forEach(({ note }) => {
+    note.tags?.forEach(tag => {
+      const tagName = tag.name.toLowerCase();
+      tagFrequency.set(tagName, (tagFrequency.get(tagName) || 0) + 1);
+    });
+  });
+
+  // Sort by frequency and return top tags
+  return Array.from(tagFrequency.entries())
+    .sort((a, b) => b[1] - a[1])
+    .slice(0, limit)
+    .map(([tag]) => tag);
+}
+
+/**
+ * Get all tag suggestions for a note
+ */
+export function getSmartTagSuggestions(
+  note: Note,
+  allNotes: Note[],
+  existingTags: string[] = []
+): string[] {
+  const content = `${note.title || ''} ${note.content || ''}`;
+
+  // Get category suggestions
+  const categoryTags = suggestCategoryTags(content);
+
+  // Get suggestions from similar notes
+  const similarNoteTags = suggestFromSimilarNotes(note, allNotes);
+
+  // Get keyword-based suggestions
+  const keywords = extractKeywords(content, 5);
+
+  // Combine all suggestions
+  const allSuggestions = [
+    ...categoryTags,
+    ...similarNoteTags,
+    ...keywords
+  ];
+
+  // Filter out existing tags and duplicates
+  const existingTagsLower = existingTags.map(t => t.toLowerCase());
+  const uniqueSuggestions = Array.from(
+    new Set(allSuggestions.map(t => t.toLowerCase()))
+  ).filter(tag => !existingTagsLower.includes(tag));
+
+  // Return top 8 suggestions
+  return uniqueSuggestions.slice(0, 8);
+}