refactor: userpreferences are now in the DB

clients/base/http-client.ts

@@ -52,6 +52,13 @@ export class HttpClient {
     });
   }
 
+  async put<T>(endpoint: string, data?: unknown): Promise<T> {
+    return this.request<T>(endpoint, {
+      method: 'PUT',
+      body: data ? JSON.stringify(data) : undefined,
+    });
+  }
+
   async patch<T>(endpoint: string, data?: unknown): Promise<T> {
     return this.request<T>(endpoint, {
       method: 'PATCH',

clients/user-preferences-client.ts

@@ -0,0 +1,77 @@
+import { httpClient } from './base/http-client';
+import { UserPreferences, KanbanFilters, ViewPreferences, ColumnVisibility } from '@/lib/types';
+
+export interface UserPreferencesResponse {
+  success: boolean;
+  data?: UserPreferences;
+  message?: string;
+  error?: string;
+}
+
+export interface UserPreferencesUpdateResponse {
+  success: boolean;
+  message?: string;
+  error?: string;
+}
+
+/**
+ * Client HTTP pour les préférences utilisateur
+ */
+export const userPreferencesClient = {
+  /**
+   * Récupère toutes les préférences utilisateur
+   */
+  async getPreferences(): Promise<UserPreferences> {
+    const response = await httpClient.get<UserPreferencesResponse>('/user-preferences');
+    
+    if (!response.success || !response.data) {
+      throw new Error(response.error || 'Erreur lors de la récupération des préférences');
+    }
+    
+    return response.data;
+  },
+
+  /**
+   * Sauvegarde toutes les préférences utilisateur
+   */
+  async savePreferences(preferences: UserPreferences): Promise<void> {
+    const response = await httpClient.put<UserPreferencesUpdateResponse>('/user-preferences', preferences);
+    
+    if (!response.success) {
+      throw new Error(response.error || 'Erreur lors de la sauvegarde des préférences');
+    }
+  },
+
+  /**
+   * Met à jour les filtres Kanban
+   */
+  async updateKanbanFilters(filters: Partial<KanbanFilters>): Promise<void> {
+    const response = await httpClient.patch<UserPreferencesUpdateResponse>('/user-preferences/kanban-filters', filters);
+    
+    if (!response.success) {
+      throw new Error(response.error || 'Erreur lors de la mise à jour des filtres Kanban');
+    }
+  },
+
+  /**
+   * Met à jour les préférences de vue
+   */
+  async updateViewPreferences(preferences: Partial<ViewPreferences>): Promise<void> {
+    const response = await httpClient.patch<UserPreferencesUpdateResponse>('/user-preferences/view-preferences', preferences);
+    
+    if (!response.success) {
+      throw new Error(response.error || 'Erreur lors de la mise à jour des préférences de vue');
+    }
+  },
+
+  /**
+   * Met à jour la visibilité des colonnes
+   */
+  async updateColumnVisibility(visibility: Partial<ColumnVisibility>): Promise<void> {
+    const response = await httpClient.patch<UserPreferencesUpdateResponse>('/user-preferences/column-visibility', visibility);
+    
+    if (!response.success) {
+      throw new Error(response.error || 'Erreur lors de la mise à jour de la visibilité des colonnes');
+    }
+  }
+};

components/HomePageClient.tsx

@@ -1,12 +1,12 @@
 'use client';
 
-import { useState, useEffect } from 'react';
+import { useState } from 'react';
 import { KanbanBoardContainer } from '@/components/kanban/BoardContainer';
 import { Header } from '@/components/ui/Header';
 import { TasksProvider, useTasksContext } from '@/contexts/TasksContext';
-import { Task, Tag, TaskStats } from '@/lib/types';
+import { UserPreferencesProvider, useUserPreferences } from '@/contexts/UserPreferencesContext';
+import { Task, Tag, TaskStats, UserPreferences } from '@/lib/types';
 import { CreateTaskData } from '@/clients/tasks-client';
-import { userPreferencesService } from '@/services/user-preferences';
 import { CreateTaskForm } from '@/components/forms/CreateTaskForm';
 import { Button } from '@/components/ui/Button';
 
@@ -14,32 +14,26 @@ interface HomePageClientProps {
   initialTasks: Task[];
   initialStats: TaskStats;
   initialTags: (Tag & { usage: number })[];
+  initialPreferences: UserPreferences;
 }
 
+
 function HomePageContent() {
   const { stats, syncing, createTask } = useTasksContext();
-  const [showFilters, setShowFilters] = useState(true);
-  const [showObjectives, setShowObjectives] = useState(true);
+  const { preferences, updateViewPreferences } = useUserPreferences();
   const [isCreateModalOpen, setIsCreateModalOpen] = useState(false);
 
-  // Charger les préférences depuis le service
-  useEffect(() => {
-    const viewPreferences = userPreferencesService.getViewPreferences();
-    setShowFilters(viewPreferences.showFilters);
-    setShowObjectives(viewPreferences.showObjectives);
-  }, []);
+  // Extraire les préférences du context
+  const showFilters = preferences.viewPreferences.showFilters;
+  const showObjectives = preferences.viewPreferences.showObjectives;
 
-  // Sauvegarder les préférences via le service
+  // Handlers pour les toggles (sauvegarde automatique via le context)
   const handleToggleFilters = () => {
-    const newValue = !showFilters;
-    setShowFilters(newValue);
-    userPreferencesService.updateViewPreferences({ showFilters: newValue });
+    updateViewPreferences({ showFilters: !showFilters });
   };
 
   const handleToggleObjectives = () => {
-    const newValue = !showObjectives;
-    setShowObjectives(newValue);
-    userPreferencesService.updateViewPreferences({ showObjectives: newValue });
+    updateViewPreferences({ showObjectives: !showObjectives });
   };
 
   // Handler pour la création de tâche depuis la barre de contrôles
@@ -127,14 +121,16 @@ function HomePageContent() {
   );
 }
 
-export function HomePageClient({ initialTasks, initialStats, initialTags }: HomePageClientProps) {
+export function HomePageClient({ initialTasks, initialStats, initialTags, initialPreferences }: HomePageClientProps) {
   return (
-    <TasksProvider 
-      initialTasks={initialTasks} 
-      initialStats={initialStats}
-      initialTags={initialTags}
-    >
-      <HomePageContent />
-    </TasksProvider>
+    <UserPreferencesProvider initialPreferences={initialPreferences}>
+      <TasksProvider 
+        initialTasks={initialTasks} 
+        initialStats={initialStats}
+        initialTags={initialTags}
+      >
+        <HomePageContent />
+      </TasksProvider>
+    </UserPreferencesProvider>
   );
 }

components/kanban/Board.tsx

@@ -4,16 +4,14 @@ import { Task, TaskStatus } from '@/lib/types';
 import { KanbanColumn } from './Column';
 import { CreateTaskData } from '@/clients/tasks-client';
 import { useMemo, useState } from 'react';
-import { useColumnVisibility } from '@/hooks/useColumnVisibility';
+import { useUserPreferences } from '@/contexts/UserPreferencesContext';
+import { useDragAndDrop } from '@/hooks/useDragAndDrop';
 import { getAllStatuses } from '@/lib/status-config';
 import {
   DndContext,
   DragEndEvent,
   DragOverlay,
-  DragStartEvent,
-  PointerSensor,
-  useSensor,
-  useSensors,
+  DragStartEvent
 } from '@dnd-kit/core';
 import { TaskCard } from './TaskCard';
 
@@ -30,18 +28,8 @@ interface KanbanBoardProps {
 
 export function KanbanBoard({ tasks, onCreateTask, onDeleteTask, onEditTask, onUpdateTitle, onUpdateStatus, compactView = false, visibleStatuses }: KanbanBoardProps) {
   const [activeTask, setActiveTask] = useState<Task | null>(null);
-  
-  // Gestion de la visibilité des colonnes (utilise les props si disponibles)
-  const { getVisibleStatuses } = useColumnVisibility();
-  
-  // Configuration des capteurs pour le drag & drop
-  const sensors = useSensors(
-    useSensor(PointerSensor, {
-      activationConstraint: {
-        distance: 8, // Évite les clics accidentels
-      },
-    })
-  );
+  const { isColumnVisible } = useUserPreferences();
+  const { isMounted, sensors } = useDragAndDrop();
   // Organiser les tâches par statut
   const tasksByStatus = useMemo(() => {
     const grouped = tasks.reduce((acc, task) => {
@@ -66,7 +54,7 @@ export function KanbanBoard({ tasks, onCreateTask, onDeleteTask, onEditTask, onU
   // Filtrer les colonnes visibles
   const visibleColumns = visibleStatuses ? 
     allColumns.filter(column => visibleStatuses.includes(column.id)) :
-    getVisibleStatuses(allColumns);
+    allColumns.filter(column => isColumnVisible(column.id));
 
 
   // Gestion du début du drag
@@ -94,17 +82,10 @@ export function KanbanBoard({ tasks, onCreateTask, onDeleteTask, onEditTask, onU
     await onUpdateStatus(taskId, newStatus);
   };
 
-  return (
-    <DndContext
-      id="kanban-board"
-      sensors={sensors}
-      onDragStart={handleDragStart}
-      onDragEnd={handleDragEnd}
-    >
-      <div className="h-full flex flex-col bg-[var(--background)]">
-        {/* Espacement supérieur */}
-        <div className="pt-4"></div>
-
+  const content = (
+    <div className="h-full flex flex-col bg-[var(--background)]">
+      {/* Espacement supérieur */}
+      <div className="pt-4"></div>
 
         {/* Board tech dark */}
         <div className="flex-1 flex gap-6 overflow-x-auto p-6">
@@ -121,9 +102,22 @@ export function KanbanBoard({ tasks, onCreateTask, onDeleteTask, onEditTask, onU
             />
           ))}
         </div>
+    </div>
+  );
 
-      </div>
+  if (!isMounted) {
+    return content;
+  }
 
+  return (
+    <DndContext
+      id="kanban-board"
+      sensors={sensors}
+      onDragStart={handleDragStart}
+      onDragEnd={handleDragEnd}
+    >
+      {content}
+      
       {/* Overlay pour le drag & drop */}
       <DragOverlay>
         {activeTask ? (

components/kanban/BoardContainer.tsx

@@ -8,9 +8,9 @@ import { ObjectivesBoard } from './ObjectivesBoard';
 import { KanbanFilters } from './KanbanFilters';
 import { EditTaskForm } from '@/components/forms/EditTaskForm';
 import { useTasksContext } from '@/contexts/TasksContext';
+import { useUserPreferences } from '@/contexts/UserPreferencesContext';
 import { Task, TaskStatus } from '@/lib/types';
 import { UpdateTaskData, CreateTaskData } from '@/clients/tasks-client';
-import { useColumnVisibility } from '@/hooks/useColumnVisibility';
 import { getAllStatuses } from '@/lib/status-config';
 
 interface KanbanBoardContainerProps {
@@ -20,7 +20,7 @@ interface KanbanBoardContainerProps {
 
 export function KanbanBoardContainer({ 
   showFilters = true, 
-  showObjectives = true 
+  showObjectives = true
 }: KanbanBoardContainerProps = {}) {
   const { 
     filteredTasks, 
@@ -35,9 +35,10 @@ export function KanbanBoardContainer({
     tags
   } = useTasksContext();
 
-  const { hiddenStatuses, toggleStatusVisibility, getVisibleStatuses } = useColumnVisibility();
+  const { preferences, toggleColumnVisibility, isColumnVisible } = useUserPreferences();
+  
   const allStatuses = getAllStatuses();
-  const visibleStatuses = getVisibleStatuses(allStatuses.map(s => ({ id: s.key }))).map(s => s.id);
+  const visibleStatuses = allStatuses.filter(status => isColumnVisible(status.key)).map(s => s.key);
   const [editingTask, setEditingTask] = useState<Task | null>(null);
 
   const handleEditTask = (task: Task) => {
@@ -79,8 +80,8 @@ export function KanbanBoardContainer({
         <KanbanFilters 
           filters={kanbanFilters} 
           onFiltersChange={setKanbanFilters}
-          hiddenStatuses={hiddenStatuses}
-          onToggleStatusVisibility={toggleStatusVisibility}
+          hiddenStatuses={new Set(preferences.columnVisibility.hiddenStatuses)}
+          onToggleStatusVisibility={toggleColumnVisibility}
         />
       )}
       

components/kanban/KanbanFilters.tsx

@@ -8,7 +8,7 @@ import { Input } from '@/components/ui/Input';
 import { useTasksContext } from '@/contexts/TasksContext';
 import { getAllPriorities, getPriorityColorHex } from '@/lib/status-config';
 import { SORT_OPTIONS } from '@/lib/sort-config';
-import { useColumnVisibility } from '@/hooks/useColumnVisibility';
+import { useUserPreferences } from '@/contexts/UserPreferencesContext';
 import { ColumnVisibilityToggle } from './ColumnVisibilityToggle';
 
 export interface KanbanFilters {
@@ -32,11 +32,11 @@ interface KanbanFiltersProps {
 
 export function KanbanFilters({ filters, onFiltersChange, hiddenStatuses: propsHiddenStatuses, onToggleStatusVisibility }: KanbanFiltersProps) {
   const { tags: availableTags, regularTasks } = useTasksContext();
-  const { hiddenStatuses: localHiddenStatuses, toggleStatusVisibility: localToggleStatusVisibility } = useColumnVisibility();
+  const { preferences, toggleColumnVisibility } = useUserPreferences();
   
-  // Utiliser les props si disponibles, sinon utiliser l'état local
-  const hiddenStatuses = propsHiddenStatuses || localHiddenStatuses;
-  const toggleStatusVisibility = onToggleStatusVisibility || localToggleStatusVisibility;
+  // Utiliser les props si disponibles, sinon utiliser le context
+  const hiddenStatuses = propsHiddenStatuses || new Set(preferences.columnVisibility.hiddenStatuses);
+  const toggleStatusVisibility = onToggleStatusVisibility || toggleColumnVisibility;
   const [isExpanded, setIsExpanded] = useState(false);
   const [isSortExpanded, setIsSortExpanded] = useState(false);
   const [isSwimlaneModeExpanded, setIsSwimlaneModeExpanded] = useState(false);

components/kanban/ObjectivesBoard.tsx

@@ -1,7 +1,8 @@
 'use client';
 
 import { useState } from 'react';
-import { useObjectivesCollapse } from '@/hooks/useObjectivesCollapse';
+import { useUserPreferences } from '@/contexts/UserPreferencesContext';
+import { useDragAndDrop } from '@/hooks/useDragAndDrop';
 import { Task, TaskStatus } from '@/lib/types';
 import { TaskCard } from './TaskCard';
 import { Card, CardHeader, CardContent } from '@/components/ui/Card';
@@ -10,10 +11,7 @@ import {
   DndContext,
   DragEndEvent,
   DragOverlay,
-  DragStartEvent,
-  PointerSensor,
-  useSensor,
-  useSensors,
+  DragStartEvent
 } from '@dnd-kit/core';
 import {
   SortableContext,
@@ -105,18 +103,11 @@ export function ObjectivesBoard({
   compactView = false,
   pinnedTagName = "Objectifs"
 }: ObjectivesBoardProps) {
-  const { isCollapsed, toggleCollapse } = useObjectivesCollapse();
+  const { preferences, toggleObjectivesCollapse } = useUserPreferences();
+  const isCollapsed = preferences.viewPreferences.objectivesCollapsed;
+  const { isMounted, sensors } = useDragAndDrop();
   const [activeTask, setActiveTask] = useState<Task | null>(null);
 
-  // Configuration des sensors pour le drag & drop
-  const sensors = useSensors(
-    useSensor(PointerSensor, {
-      activationConstraint: {
-        distance: 8, // Évite les clics accidentels
-      },
-    })
-  );
-
   // Handlers pour le drag & drop
   const handleDragStart = (event: DragStartEvent) => {
     const task = tasks.find(t => t.id === event.active.id);
@@ -143,20 +134,14 @@ export function ObjectivesBoard({
     return null; // Ne rien afficher s'il n'y a pas d'objectifs
   }
 
-  return (
-    <DndContext
-      id="objectives-board"
-      sensors={sensors}
-      onDragStart={handleDragStart}
-      onDragEnd={handleDragEnd}
-    >
-      <div className="bg-[var(--card)]/30 border-b border-[var(--accent)]/30">
-        <div className="container mx-auto px-6 py-4">
+  const content = (
+    <div className="bg-[var(--card)]/30 border-b border-[var(--accent)]/30">
+      <div className="container mx-auto px-6 py-4">
           <Card variant="column" className="border-[var(--accent)]/30 shadow-[var(--accent)]/10">
             <CardHeader className="pb-3">
               <div className="flex items-center justify-between">
                 <button
-                  onClick={toggleCollapse}
+                  onClick={toggleObjectivesCollapse}
                   className="flex items-center gap-3 hover:bg-[var(--accent)]/20 rounded-lg p-2 -m-2 transition-colors group"
                 >
                   <div className="w-3 h-3 bg-[var(--accent)] rounded-full animate-pulse shadow-[var(--accent)]/50 shadow-lg"></div>
@@ -189,7 +174,7 @@ export function ObjectivesBoard({
                   
                   {/* Bouton collapse séparé pour mobile */}
                   <button
-                    onClick={toggleCollapse}
+                    onClick={toggleObjectivesCollapse}
                     className="lg:hidden p-1 hover:bg-[var(--accent)]/20 rounded transition-colors"
                     aria-label={isCollapsed ? "Développer" : "Réduire"}
                   >
@@ -261,7 +246,21 @@ export function ObjectivesBoard({
           </Card>
         </div>
       </div>
+  );
 
+  if (!isMounted) {
+    return content;
+  }
+
+  return (
+    <DndContext
+      id="objectives-board"
+      sensors={sensors}
+      onDragStart={handleDragStart}
+      onDragEnd={handleDragEnd}
+    >
+      {content}
+      
       {/* Overlay pour le drag & drop */}
       <DragOverlay>
         {activeTask ? (

components/kanban/SwimlanesBase.tsx

@@ -5,17 +5,15 @@ import { TaskCard } from './TaskCard';
 import { QuickAddTask } from './QuickAddTask';
 import { CreateTaskData } from '@/clients/tasks-client';
 import { useState } from 'react';
-import { useColumnVisibility } from '@/hooks/useColumnVisibility';
+import { useUserPreferences } from '@/contexts/UserPreferencesContext';
+import { useDragAndDrop } from '@/hooks/useDragAndDrop';
 import { getAllStatuses } from '@/lib/status-config';
 import {
   DndContext,
   DragEndEvent,
   DragOverlay,
   DragStartEvent,
-  closestCenter,
-  PointerSensor,
-  useSensor,
-  useSensors,
+  closestCenter
 } from '@dnd-kit/core';
 import {
   SortableContext,
@@ -143,19 +141,11 @@ export function SwimlanesBase({
   const [showQuickAdd, setShowQuickAdd] = useState<{ [key: string]: boolean }>({});
   
   // Gestion de la visibilité des colonnes
-  const { getVisibleStatuses } = useColumnVisibility();
+  const { isColumnVisible } = useUserPreferences();
+  const { isMounted, sensors } = useDragAndDrop();
   const allStatuses = getAllStatuses();
   const statusesToShow = visibleStatuses || 
-    getVisibleStatuses(allStatuses.map(s => ({ id: s.key }))).map(s => s.id);
-
-  // Configuration des sensors pour le drag & drop
-  const sensors = useSensors(
-    useSensor(PointerSensor, {
-      activationConstraint: {
-        distance: 8,
-      },
-    })
-  );
+    allStatuses.filter(status => isColumnVisible(status.key)).map(s => s.key);
 
   // Handlers pour le drag & drop
   const handleDragStart = (event: DragStartEvent) => {
@@ -203,16 +193,10 @@ export function SwimlanesBase({
     setShowQuickAdd(prev => ({ ...prev, [columnId]: !prev[columnId] }));
   };
 
-  return (
-    <DndContext
-      sensors={sensors}
-      collisionDetection={closestCenter}
-      onDragStart={handleDragStart}
-      onDragEnd={handleDragEnd}
-    >
-      <div className="flex flex-col h-full bg-[var(--background)]">
-        {/* Espacement supérieur */}
-        <div className="flex-shrink-0 py-2"></div>
+  const content = (
+    <div className="flex flex-col h-full bg-[var(--background)]">
+      {/* Espacement supérieur */}
+      <div className="flex-shrink-0 py-2"></div>
 
 
         {/* Headers des colonnes visibles */}
@@ -305,7 +289,21 @@ export function SwimlanesBase({
           </div>
         </div>
       </div>
+  );
 
+  if (!isMounted) {
+    return content;
+  }
+
+  return (
+    <DndContext
+      sensors={sensors}
+      collisionDetection={closestCenter}
+      onDragStart={handleDragStart}
+      onDragEnd={handleDragEnd}
+    >
+      {content}
+      
       {/* Drag overlay */}
       <DragOverlay>
         {activeTask && (
@@ -315,7 +313,6 @@ export function SwimlanesBase({
           />
         )}
       </DragOverlay>
-
     </DndContext>
   );
 }

hooks/useColumnVisibility.ts

@@ -1,52 +0,0 @@
-import { useState, useEffect } from 'react';
-import { TaskStatus } from '@/lib/types';
-import { userPreferencesService } from '@/services/user-preferences';
-import { getAllStatuses } from '@/lib/status-config';
-
-export function useColumnVisibility() {
-  const [hiddenStatuses, setHiddenStatuses] = useState<Set<TaskStatus>>(new Set());
-
-  // Charger les préférences au montage
-  useEffect(() => {
-    const saved = userPreferencesService.getColumnVisibility();
-    setHiddenStatuses(new Set(saved.hiddenStatuses));
-  }, []);
-
-  const toggleStatusVisibility = (status: TaskStatus) => {
-    setHiddenStatuses(prev => {
-      const newSet = new Set(prev);
-      if (newSet.has(status)) {
-        newSet.delete(status);
-      } else {
-        newSet.add(status);
-      }
-      
-      // Sauvegarder dans localStorage
-      userPreferencesService.saveColumnVisibility({
-        hiddenStatuses: Array.from(newSet)
-      });
-      
-      return newSet;
-    });
-  };
-
-  const getVisibleStatuses = <T extends { id: TaskStatus }>(statuses: T[]): T[] => {
-    return statuses.filter(status => !hiddenStatuses.has(status.id));
-  };
-
-  const isStatusVisible = (status: TaskStatus): boolean => {
-    return !hiddenStatuses.has(status);
-  };
-
-  const getAllAvailableStatuses = () => {
-    return getAllStatuses();
-  };
-
-  return {
-    hiddenStatuses,
-    toggleStatusVisibility,
-    getVisibleStatuses,
-    isStatusVisible,
-    getAllAvailableStatuses
-  };
-}

hooks/useDragAndDrop.ts

@@ -0,0 +1,28 @@
+import { useState, useEffect } from 'react';
+import { useSensors, useSensor, PointerSensor } from '@dnd-kit/core';
+
+/**
+ * Hook pour gérer le drag & drop de manière safe avec SSR
+ * Désactive le DnD jusqu'à l'hydratation pour éviter les erreurs d'hydratation
+ */
+export function useDragAndDrop() {
+  const [isMounted, setIsMounted] = useState(false);
+
+  useEffect(() => {
+    // Activer le drag & drop après l'hydratation
+    setIsMounted(true);
+  }, []);
+
+  const sensors = useSensors(
+    useSensor(PointerSensor, {
+      activationConstraint: {
+        distance: 8,
+      },
+    })
+  );
+
+  return {
+    isMounted,
+    sensors
+  };
+}

hooks/useObjectivesCollapse.ts

@@ -1,39 +0,0 @@
-import { useState, useEffect } from 'react';
-
-const STORAGE_KEY = 'towercontrol_objectives_collapsed';
-
-export function useObjectivesCollapse() {
-  const [isCollapsed, setIsCollapsed] = useState(false);
-
-  // Charger l'état au montage
-  useEffect(() => {
-    try {
-      const saved = localStorage.getItem(STORAGE_KEY);
-      if (saved !== null) {
-        setIsCollapsed(JSON.parse(saved));
-      }
-    } catch (error) {
-      console.warn('Erreur lors du chargement de l\'état de collapse des objectifs:', error);
-    }
-  }, []);
-
-  const toggleCollapse = () => {
-    setIsCollapsed(prev => {
-      const newValue = !prev;
-      
-      // Sauvegarder dans localStorage
-      try {
-        localStorage.setItem(STORAGE_KEY, JSON.stringify(newValue));
-      } catch (error) {
-        console.warn('Erreur lors de la sauvegarde de l\'état de collapse des objectifs:', error);
-      }
-      
-      return newValue;
-    });
-  };
-
-  return {
-    isCollapsed,
-    toggleCollapse
-  };
-}

hooks/useObjectivesVisibility.ts

@@ -1,30 +0,0 @@
-import { useState, useEffect } from 'react';
-import { userPreferencesService } from '@/services/user-preferences';
-
-export function useObjectivesVisibility() {
-  const [showObjectives, setShowObjectives] = useState(true);
-
-  // Charger les préférences au montage
-  useEffect(() => {
-    const saved = userPreferencesService.getViewPreferences();
-    setShowObjectives(saved.showObjectives);
-  }, []);
-
-  const toggleObjectivesVisibility = () => {
-    setShowObjectives(prev => {
-      const newValue = !prev;
-      
-      // Sauvegarder dans localStorage
-      userPreferencesService.updateViewPreferences({
-        showObjectives: newValue
-      });
-      
-      return newValue;
-    });
-  };
-
-  return {
-    showObjectives,
-    toggleObjectivesVisibility
-  };
-}

lib/types.ts

@@ -46,6 +46,35 @@ export interface Tag {
   isPinned?: boolean; // Tag pour objectifs principaux
 }
 
+// Types pour les préférences utilisateur
+export interface KanbanFilters {
+  search?: string;
+  tags?: string[];
+  priorities?: TaskPriority[];
+  showCompleted?: boolean;
+  sortBy?: string;
+}
+
+export interface ViewPreferences {
+  compactView: boolean;
+  swimlanesByTags: boolean;
+  swimlanesMode?: 'tags' | 'priority';
+  showObjectives: boolean;
+  showFilters: boolean;
+  objectivesCollapsed: boolean;
+  theme: 'light' | 'dark';
+}
+
+export interface ColumnVisibility {
+  hiddenStatuses: TaskStatus[];
+}
+
+export interface UserPreferences {
+  kanbanFilters: KanbanFilters;
+  viewPreferences: ViewPreferences;
+  columnVisibility: ColumnVisibility;
+}
+
 // Interface pour les logs de synchronisation
 export interface SyncLog {
   id: string;

prisma/migrations/20250916201629_add_user_preferences/migration.sql

@@ -0,0 +1,9 @@
+-- CreateTable
+CREATE TABLE "user_preferences" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "kanbanFilters" JSONB,
+    "viewPreferences" JSONB,
+    "columnVisibility" JSONB,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" DATETIME NOT NULL
+);

prisma/schema.prisma

@@ -84,3 +84,21 @@ model DailyCheckbox {
   @@index([date])
   @@map("daily_checkboxes")
 }
+
+model UserPreferences {
+  id String @id @default(cuid())
+  
+  // Filtres Kanban (JSON)
+  kanbanFilters Json?
+  
+  // Préférences de vue (JSON)
+  viewPreferences Json?
+  
+  // Visibilité des colonnes (JSON)
+  columnVisibility Json?
+  
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+  
+  @@map("user_preferences")
+}

services/user-preferences.ts

@@ -1,31 +1,5 @@
-import { TaskPriority, TaskStatus } from '@/lib/types';
-
-// Types pour les préférences utilisateur
-export interface KanbanFilters {
-  search?: string;
-  tags?: string[];
-  priorities?: TaskPriority[];
-  showCompleted?: boolean;
-  sortBy?: string;
-}
-
-export interface ViewPreferences {
-  compactView: boolean;
-  swimlanesByTags: boolean;
-  swimlanesMode?: 'tags' | 'priority';
-  showObjectives: boolean;
-  showFilters: boolean;
-}
-
-export interface ColumnVisibility {
-  hiddenStatuses: TaskStatus[];
-}
-
-export interface UserPreferences {
-  kanbanFilters: KanbanFilters;
-  viewPreferences: ViewPreferences;
-  columnVisibility: ColumnVisibility;
-}
+import { TaskStatus, KanbanFilters, ViewPreferences, ColumnVisibility, UserPreferences } from '@/lib/types';
+import { prisma } from './database';
 
 // Valeurs par défaut
 const DEFAULT_PREFERENCES: UserPreferences = {
@@ -33,186 +7,217 @@ const DEFAULT_PREFERENCES: UserPreferences = {
     search: '',
     tags: [],
     priorities: [],
-    showCompleted: true
+    showCompleted: true,
+    sortBy: ''
   },
   viewPreferences: {
     compactView: false,
     swimlanesByTags: false,
+    swimlanesMode: 'tags',
     showObjectives: true,
-    showFilters: true
+    showFilters: true,
+    objectivesCollapsed: false,
+    theme: 'dark'
   },
   columnVisibility: {
     hiddenStatuses: []
   }
 };
 
-// Clés pour le localStorage
-const STORAGE_KEYS = {
-  KANBAN_FILTERS: 'towercontrol_kanban_filters',
-  VIEW_PREFERENCES: 'towercontrol_view_preferences',
-  COLUMN_VISIBILITY: 'towercontrol_column_visibility'
-} as const;
-
 /**
- * Service pour gérer les préférences utilisateur dans le localStorage
+ * Service pour gérer les préférences utilisateur en base de données
  */
-export const userPreferencesService = {
+class UserPreferencesService {
+  private readonly USER_ID = 'default'; // Pour l'instant, un seul utilisateur
+
+  /**
+   * Récupère ou crée l'entrée user preferences (avec upsert pour éviter les doublons)
+   */
+  private async getOrCreateUserPreferences() {
+    // Utiliser upsert pour éviter les conditions de course
+    const userPrefs = await prisma.userPreferences.upsert({
+      where: { id: 'default' }, // ID fixe pour l'utilisateur unique
+      update: {}, // Ne rien mettre à jour si existe
+      create: {
+        id: 'default',
+        kanbanFilters: DEFAULT_PREFERENCES.kanbanFilters,
+        viewPreferences: DEFAULT_PREFERENCES.viewPreferences,
+        columnVisibility: DEFAULT_PREFERENCES.columnVisibility,
+      }
+    });
+    
+    return userPrefs;
+  }
+
   // === FILTRES KANBAN ===
   
   /**
    * Sauvegarde les filtres Kanban
    */
-  saveKanbanFilters(filters: KanbanFilters): void {
+  async saveKanbanFilters(filters: KanbanFilters): Promise<void> {
     try {
-      localStorage.setItem(STORAGE_KEYS.KANBAN_FILTERS, JSON.stringify(filters));
+      const userPrefs = await this.getOrCreateUserPreferences();
+      await prisma.userPreferences.update({
+        where: { id: userPrefs.id },
+        data: { kanbanFilters: filters }
+      });
     } catch (error) {
       console.warn('Erreur lors de la sauvegarde des filtres Kanban:', error);
+      throw error;
     }
-  },
+  }
 
   /**
    * Récupère les filtres Kanban
    */
-  getKanbanFilters(): KanbanFilters {
+  async getKanbanFilters(): Promise<KanbanFilters> {
     try {
-      const stored = localStorage.getItem(STORAGE_KEYS.KANBAN_FILTERS);
-      if (stored) {
-        return { ...DEFAULT_PREFERENCES.kanbanFilters, ...JSON.parse(stored) };
-      }
+      const userPrefs = await this.getOrCreateUserPreferences();
+      const filters = userPrefs.kanbanFilters as KanbanFilters | null;
+      return { ...DEFAULT_PREFERENCES.kanbanFilters, ...(filters || {}) };
     } catch (error) {
       console.warn('Erreur lors de la récupération des filtres Kanban:', error);
+      return DEFAULT_PREFERENCES.kanbanFilters;
     }
-    return DEFAULT_PREFERENCES.kanbanFilters;
-  },
+  }
 
   // === PRÉFÉRENCES DE VUE ===
 
   /**
    * Sauvegarde les préférences de vue
    */
-  saveViewPreferences(preferences: ViewPreferences): void {
+  async saveViewPreferences(preferences: ViewPreferences): Promise<void> {
     try {
-      localStorage.setItem(STORAGE_KEYS.VIEW_PREFERENCES, JSON.stringify(preferences));
+      const userPrefs = await this.getOrCreateUserPreferences();
+      await prisma.userPreferences.update({
+        where: { id: userPrefs.id },
+        data: { viewPreferences: preferences }
+      });
     } catch (error) {
       console.warn('Erreur lors de la sauvegarde des préférences de vue:', error);
+      throw error;
     }
-  },
+  }
 
   /**
    * Récupère les préférences de vue
    */
-  getViewPreferences(): ViewPreferences {
+  async getViewPreferences(): Promise<ViewPreferences> {
     try {
-      const stored = localStorage.getItem(STORAGE_KEYS.VIEW_PREFERENCES);
-      if (stored) {
-        return { ...DEFAULT_PREFERENCES.viewPreferences, ...JSON.parse(stored) };
-      }
+      const userPrefs = await this.getOrCreateUserPreferences();
+      const preferences = userPrefs.viewPreferences as ViewPreferences | null;
+      return { ...DEFAULT_PREFERENCES.viewPreferences, ...(preferences || {}) };
     } catch (error) {
       console.warn('Erreur lors de la récupération des préférences de vue:', error);
+      return DEFAULT_PREFERENCES.viewPreferences;
     }
-    return DEFAULT_PREFERENCES.viewPreferences;
-  },
+  }
 
   // === VISIBILITÉ DES COLONNES ===
 
   /**
    * Sauvegarde la visibilité des colonnes
    */
-  saveColumnVisibility(visibility: ColumnVisibility): void {
+  async saveColumnVisibility(visibility: ColumnVisibility): Promise<void> {
     try {
-      localStorage.setItem(STORAGE_KEYS.COLUMN_VISIBILITY, JSON.stringify(visibility));
+      const userPrefs = await this.getOrCreateUserPreferences();
+      await prisma.userPreferences.update({
+        where: { id: userPrefs.id },
+        data: { columnVisibility: visibility }
+      });
     } catch (error) {
       console.warn('Erreur lors de la sauvegarde de la visibilité des colonnes:', error);
+      throw error;
     }
-  },
+  }
 
   /**
    * Récupère la visibilité des colonnes
    */
-  getColumnVisibility(): ColumnVisibility {
+  async getColumnVisibility(): Promise<ColumnVisibility> {
     try {
-      const stored = localStorage.getItem(STORAGE_KEYS.COLUMN_VISIBILITY);
-      if (stored) {
-        return { ...DEFAULT_PREFERENCES.columnVisibility, ...JSON.parse(stored) };
-      }
+      const userPrefs = await this.getOrCreateUserPreferences();
+      const visibility = userPrefs.columnVisibility as ColumnVisibility | null;
+      return { ...DEFAULT_PREFERENCES.columnVisibility, ...(visibility || {}) };
     } catch (error) {
       console.warn('Erreur lors de la récupération de la visibilité des colonnes:', error);
+      return DEFAULT_PREFERENCES.columnVisibility;
     }
-    return DEFAULT_PREFERENCES.columnVisibility;
-  },
+  }
 
   // === MÉTHODES GLOBALES ===
 
   /**
    * Récupère toutes les préférences utilisateur
    */
-  getAllPreferences(): UserPreferences {
+  async getAllPreferences(): Promise<UserPreferences> {
+    const [kanbanFilters, viewPreferences, columnVisibility] = await Promise.all([
+      this.getKanbanFilters(),
+      this.getViewPreferences(),
+      this.getColumnVisibility()
+    ]);
+
     return {
-      kanbanFilters: this.getKanbanFilters(),
-      viewPreferences: this.getViewPreferences(),
-      columnVisibility: this.getColumnVisibility()
+      kanbanFilters,
+      viewPreferences,
+      columnVisibility
     };
-  },
+  }
 
   /**
    * Sauvegarde toutes les préférences utilisateur
    */
-  saveAllPreferences(preferences: UserPreferences): void {
-    this.saveKanbanFilters(preferences.kanbanFilters);
-    this.saveViewPreferences(preferences.viewPreferences);
-    this.saveColumnVisibility(preferences.columnVisibility);
-  },
+  async saveAllPreferences(preferences: UserPreferences): Promise<void> {
+    await Promise.all([
+      this.saveKanbanFilters(preferences.kanbanFilters),
+      this.saveViewPreferences(preferences.viewPreferences),
+      this.saveColumnVisibility(preferences.columnVisibility)
+    ]);
+  }
 
   /**
    * Remet à zéro toutes les préférences
    */
-  resetAllPreferences(): void {
+  async resetAllPreferences(): Promise<void> {
     try {
-      Object.values(STORAGE_KEYS).forEach(key => {
-        localStorage.removeItem(key);
+      const userPrefs = await this.getOrCreateUserPreferences();
+      await prisma.userPreferences.update({
+        where: { id: userPrefs.id },
+        data: {
+          kanbanFilters: DEFAULT_PREFERENCES.kanbanFilters,
+          viewPreferences: DEFAULT_PREFERENCES.viewPreferences,
+          columnVisibility: DEFAULT_PREFERENCES.columnVisibility,
+        }
       });
     } catch (error) {
       console.warn('Erreur lors de la remise à zéro des préférences:', error);
+      throw error;
     }
-  },
-
-  /**
-   * Vérifie si le localStorage est disponible
-   */
-  isStorageAvailable(): boolean {
-    try {
-      const test = '__storage_test__';
-      localStorage.setItem(test, test);
-      localStorage.removeItem(test);
-      return true;
-    } catch {
-      return false;
-    }
-  },
+  }
 
   // === MÉTHODES UTILITAIRES ===
 
   /**
    * Met à jour partiellement les filtres Kanban
    */
-  updateKanbanFilters(updates: Partial<KanbanFilters>): void {
-    const current = this.getKanbanFilters();
-    this.saveKanbanFilters({ ...current, ...updates });
-  },
+  async updateKanbanFilters(updates: Partial<KanbanFilters>): Promise<void> {
+    const current = await this.getKanbanFilters();
+    await this.saveKanbanFilters({ ...current, ...updates });
+  }
 
   /**
    * Met à jour partiellement les préférences de vue
    */
-  updateViewPreferences(updates: Partial<ViewPreferences>): void {
-    const current = this.getViewPreferences();
-    this.saveViewPreferences({ ...current, ...updates });
-  },
+  async updateViewPreferences(updates: Partial<ViewPreferences>): Promise<void> {
+    const current = await this.getViewPreferences();
+    await this.saveViewPreferences({ ...current, ...updates });
+  }
 
   /**
    * Met à jour la visibilité d'une colonne spécifique
    */
-  toggleColumnVisibility(status: TaskStatus): void {
-    const current = this.getColumnVisibility();
+  async toggleColumnVisibility(status: TaskStatus): Promise<void> {
+    const current = await this.getColumnVisibility();
     const hiddenStatuses = new Set(current.hiddenStatuses);
     
     if (hiddenStatuses.has(status)) {
@@ -221,8 +226,11 @@ export const userPreferencesService = {
       hiddenStatuses.add(status);
     }
     
-    this.saveColumnVisibility({
+    await this.saveColumnVisibility({
       hiddenStatuses: Array.from(hiddenStatuses)
     });
   }
-};
+}
+
+// Export de l'instance singleton
+export const userPreferencesService = new UserPreferencesService();

src/app/api/user-preferences/column-visibility/route.ts

@@ -0,0 +1,28 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { userPreferencesService } from '@/services/user-preferences';
+
+/**
+ * PATCH /api/user-preferences/column-visibility - Met à jour partiellement la visibilité des colonnes
+ */
+export async function PATCH(request: NextRequest) {
+  try {
+    const updates = await request.json();
+    
+    const current = await userPreferencesService.getColumnVisibility();
+    await userPreferencesService.saveColumnVisibility({ ...current, ...updates });
+    
+    return NextResponse.json({
+      success: true,
+      message: 'Visibilité des colonnes mise à jour avec succès'
+    });
+  } catch (error) {
+    console.error('Erreur lors de la mise à jour de la visibilité des colonnes:', error);
+    return NextResponse.json(
+      { 
+        success: false, 
+        error: 'Erreur lors de la mise à jour de la visibilité des colonnes' 
+      },
+      { status: 500 }
+    );
+  }
+}

src/app/api/user-preferences/kanban-filters/route.ts

@@ -0,0 +1,76 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { userPreferencesService } from '@/services/user-preferences';
+
+/**
+ * GET /api/user-preferences/kanban-filters - Récupère les filtres Kanban
+ */
+export async function GET() {
+  try {
+    const filters = await userPreferencesService.getKanbanFilters();
+    
+    return NextResponse.json({
+      success: true,
+      data: filters
+    });
+  } catch (error) {
+    console.error('Erreur lors de la récupération des filtres Kanban:', error);
+    return NextResponse.json(
+      { 
+        success: false, 
+        error: 'Erreur lors de la récupération des filtres Kanban' 
+      },
+      { status: 500 }
+    );
+  }
+}
+
+/**
+ * PUT /api/user-preferences/kanban-filters - Met à jour les filtres Kanban
+ */
+export async function PUT(request: NextRequest) {
+  try {
+    const filters = await request.json();
+    
+    await userPreferencesService.saveKanbanFilters(filters);
+    
+    return NextResponse.json({
+      success: true,
+      message: 'Filtres Kanban sauvegardés avec succès'
+    });
+  } catch (error) {
+    console.error('Erreur lors de la sauvegarde des filtres Kanban:', error);
+    return NextResponse.json(
+      { 
+        success: false, 
+        error: 'Erreur lors de la sauvegarde des filtres Kanban' 
+      },
+      { status: 500 }
+    );
+  }
+}
+
+/**
+ * PATCH /api/user-preferences/kanban-filters - Met à jour partiellement les filtres Kanban
+ */
+export async function PATCH(request: NextRequest) {
+  try {
+    const updates = await request.json();
+    
+    const current = await userPreferencesService.getKanbanFilters();
+    await userPreferencesService.saveKanbanFilters({ ...current, ...updates });
+    
+    return NextResponse.json({
+      success: true,
+      message: 'Filtres Kanban mis à jour avec succès'
+    });
+  } catch (error) {
+    console.error('Erreur lors de la mise à jour des filtres Kanban:', error);
+    return NextResponse.json(
+      { 
+        success: false, 
+        error: 'Erreur lors de la mise à jour des filtres Kanban' 
+      },
+      { status: 500 }
+    );
+  }
+}

src/app/api/user-preferences/route.ts

@@ -0,0 +1,50 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { userPreferencesService } from '@/services/user-preferences';
+
+/**
+ * GET /api/user-preferences - Récupère toutes les préférences utilisateur
+ */
+export async function GET() {
+  try {
+    const preferences = await userPreferencesService.getAllPreferences();
+    
+    return NextResponse.json({
+      success: true,
+      data: preferences
+    });
+  } catch (error) {
+    console.error('Erreur lors de la récupération des préférences:', error);
+    return NextResponse.json(
+      { 
+        success: false, 
+        error: 'Erreur lors de la récupération des préférences' 
+      },
+      { status: 500 }
+    );
+  }
+}
+
+/**
+ * PUT /api/user-preferences - Met à jour toutes les préférences utilisateur
+ */
+export async function PUT(request: NextRequest) {
+  try {
+    const preferences = await request.json();
+    
+    await userPreferencesService.saveAllPreferences(preferences);
+    
+    return NextResponse.json({
+      success: true,
+      message: 'Préférences sauvegardées avec succès'
+    });
+  } catch (error) {
+    console.error('Erreur lors de la sauvegarde des préférences:', error);
+    return NextResponse.json(
+      { 
+        success: false, 
+        error: 'Erreur lors de la sauvegarde des préférences' 
+      },
+      { status: 500 }
+    );
+  }
+}

src/app/api/user-preferences/view-preferences/route.ts

@@ -0,0 +1,28 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { userPreferencesService } from '@/services/user-preferences';
+
+/**
+ * PATCH /api/user-preferences/view-preferences - Met à jour partiellement les préférences de vue
+ */
+export async function PATCH(request: NextRequest) {
+  try {
+    const updates = await request.json();
+    
+    const current = await userPreferencesService.getViewPreferences();
+    await userPreferencesService.saveViewPreferences({ ...current, ...updates });
+    
+    return NextResponse.json({
+      success: true,
+      message: 'Préférences de vue mises à jour avec succès'
+    });
+  } catch (error) {
+    console.error('Erreur lors de la mise à jour des préférences de vue:', error);
+    return NextResponse.json(
+      { 
+        success: false, 
+        error: 'Erreur lors de la mise à jour des préférences de vue' 
+      },
+      { status: 500 }
+    );
+  }
+}

src/app/page.tsx

@@ -1,5 +1,6 @@
 import { tasksService } from '@/services/tasks';
 import { tagsService } from '@/services/tags';
+import { userPreferencesService } from '@/services/user-preferences';
 import { HomePageClient } from '@/components/HomePageClient';
 
 // Force dynamic rendering (no static generation)
@@ -7,10 +8,11 @@ export const dynamic = 'force-dynamic';
 
 export default async function HomePage() {
   // SSR - Récupération des données côté serveur
-  const [initialTasks, initialStats, initialTags] = await Promise.all([
+  const [initialTasks, initialStats, initialTags, initialPreferences] = await Promise.all([
     tasksService.getTasks(),
     tasksService.getTaskStats(),
-    tagsService.getTags()
+    tagsService.getTags(),
+    userPreferencesService.getAllPreferences()
   ]);
 
   return (
@@ -18,6 +20,7 @@ export default async function HomePage() {
       initialTasks={initialTasks}
       initialStats={initialStats}
       initialTags={initialTags}
+      initialPreferences={initialPreferences}
     />
   );
 }

src/contexts/TasksContext.tsx

@@ -1,9 +1,9 @@
 'use client';
 
-import { createContext, useContext, ReactNode, useState, useMemo, useEffect } from 'react';
+import { createContext, useContext, ReactNode, useMemo } from 'react';
 import { useTasks } from '@/hooks/useTasks';
 import { useTags } from '@/hooks/useTags';
-import { userPreferencesService } from '@/services/user-preferences';
+import { useUserPreferences } from './UserPreferencesContext';
 import { Task, Tag, TaskStats } from '@/lib/types';
 import { CreateTaskData, UpdateTaskData, TaskFilters } from '@/clients/tasks-client';
 import { KanbanFilters } from '@/components/kanban/KanbanFilters';
@@ -49,48 +49,42 @@ export function TasksProvider({ children, initialTasks, initialStats, initialTag
   );
 
   const { tags, loading: tagsLoading, error: tagsError } = useTags(initialTags);
-  
-  // État des filtres Kanban avec persistance
-  const [kanbanFilters, setKanbanFilters] = useState<KanbanFilters>({});
+  const { preferences, updateKanbanFilters, updateViewPreferences } = useUserPreferences();
 
-  // Charger les préférences au montage
-  useEffect(() => {
-    const savedFilters = userPreferencesService.getKanbanFilters();
-    const savedViewPrefs = userPreferencesService.getViewPreferences();
-    
-    setKanbanFilters({
-      search: savedFilters.search,
-      tags: savedFilters.tags,
-      priorities: savedFilters.priorities,
-      showCompleted: savedFilters.showCompleted,
-      sortBy: savedFilters.sortBy || createSortKey('priority', 'desc'), // Tri par défaut
-      compactView: savedViewPrefs.compactView,
-      swimlanesByTags: savedViewPrefs.swimlanesByTags,
-      swimlanesMode: savedViewPrefs.swimlanesMode || 'tags'
-    });
-  }, []);
+  // Construire l'objet KanbanFilters à partir des préférences
+  const kanbanFilters: KanbanFilters = useMemo(() => ({
+    search: preferences.kanbanFilters.search || '',
+    tags: preferences.kanbanFilters.tags || [],
+    priorities: preferences.kanbanFilters.priorities || [],
+    showCompleted: preferences.kanbanFilters.showCompleted ?? true,
+    sortBy: preferences.kanbanFilters.sortBy || createSortKey('priority', 'desc'),
+    compactView: preferences.viewPreferences.compactView || false,
+    swimlanesByTags: preferences.viewPreferences.swimlanesByTags || false,
+    swimlanesMode: preferences.viewPreferences.swimlanesMode || 'tags'
+  }), [preferences]);
 
   // Fonction pour mettre à jour les filtres avec persistance
-  const updateKanbanFilters = (newFilters: KanbanFilters) => {
-    setKanbanFilters(newFilters);
-    
-    // Sauvegarder les filtres
-    userPreferencesService.saveKanbanFilters({
+  const setKanbanFilters = async (newFilters: KanbanFilters) => {
+    // Séparer les vrais filtres des préférences de vue
+    const kanbanFilterUpdates = {
       search: newFilters.search,
       tags: newFilters.tags,
       priorities: newFilters.priorities,
       showCompleted: newFilters.showCompleted,
       sortBy: newFilters.sortBy
-    });
+    };
     
-    // Sauvegarder les préférences de vue
-    userPreferencesService.saveViewPreferences({
-      compactView: newFilters.compactView || false,
-      swimlanesByTags: newFilters.swimlanesByTags || false,
-      swimlanesMode: newFilters.swimlanesMode || 'tags',
-      showObjectives: true, // Toujours visible pour l'instant
-      showFilters: true // Toujours visible pour l'instant
-    });
+    const viewPreferenceUpdates = {
+      compactView: newFilters.compactView,
+      swimlanesByTags: newFilters.swimlanesByTags,
+      swimlanesMode: newFilters.swimlanesMode
+    };
+    
+    // Mettre à jour via UserPreferencesContext
+    await Promise.all([
+      updateKanbanFilters(kanbanFilterUpdates),
+      updateViewPreferences(viewPreferenceUpdates)
+    ]);
   };
 
   // Séparer les tâches épinglées (objectifs) des autres et les trier
@@ -176,7 +170,7 @@ export function TasksProvider({ children, initialTasks, initialStats, initialTag
     tagsLoading,
     tagsError,
     kanbanFilters,
-    setKanbanFilters: updateKanbanFilters,
+    setKanbanFilters,
     filteredTasks,
     pinnedTasks
   };

src/contexts/ThemeContext.tsx

@@ -14,34 +14,22 @@ const ThemeContext = createContext<ThemeContextType | undefined>(undefined);
 
 interface ThemeProviderProps {
   children: ReactNode;
+  initialTheme?: Theme;
 }
 
-export function ThemeProvider({ children }: ThemeProviderProps) {
-  const [theme, setThemeState] = useState<Theme>('dark');
+export function ThemeProvider({ children, initialTheme = 'dark' }: ThemeProviderProps) {
+  const [theme, setThemeState] = useState<Theme>(initialTheme);
   const [mounted, setMounted] = useState(false);
 
   // Hydration safe initialization
   useEffect(() => {
     setMounted(true);
-    
-    // Check localStorage first
-    const savedTheme = localStorage.getItem('theme') as Theme | null;
-    if (savedTheme) {
-      setThemeState(savedTheme);
-      return;
-    }
-
-    // Fallback to system preference
-    if (window.matchMedia('(prefers-color-scheme: light)').matches) {
-      setThemeState('light');
-    }
   }, []);
 
   // Apply theme class to document
   useEffect(() => {
     if (mounted) {
       document.documentElement.className = theme;
-      localStorage.setItem('theme', theme);
     }
   }, [theme, mounted]);
 
@@ -55,7 +43,7 @@ export function ThemeProvider({ children }: ThemeProviderProps) {
 
   return (
     <ThemeContext.Provider value={{ theme, toggleTheme, setTheme }}>
-      <div className={mounted ? theme : 'dark'}>
+      <div className={mounted ? theme : initialTheme}>
         {children}
       </div>
     </ThemeContext.Provider>

src/contexts/UserPreferencesContext.tsx

@@ -0,0 +1,150 @@
+'use client';
+
+import { createContext, useContext, ReactNode, useState, useCallback, useEffect } from 'react';
+import { userPreferencesClient } from '@/clients/user-preferences-client';
+import { UserPreferences, KanbanFilters, ViewPreferences, ColumnVisibility, TaskStatus } from '@/lib/types';
+
+interface UserPreferencesContextType {
+  preferences: UserPreferences;
+  
+  // Kanban Filters
+  updateKanbanFilters: (updates: Partial<KanbanFilters>) => Promise<void>;
+  
+  // View Preferences  
+  updateViewPreferences: (updates: Partial<ViewPreferences>) => Promise<void>;
+  toggleObjectivesVisibility: () => Promise<void>;
+  toggleObjectivesCollapse: () => Promise<void>;
+  toggleTheme: () => Promise<void>;
+  setTheme: (theme: 'light' | 'dark') => Promise<void>;
+  
+  // Column Visibility
+  updateColumnVisibility: (updates: Partial<ColumnVisibility>) => Promise<void>;
+  toggleColumnVisibility: (status: TaskStatus) => Promise<void>;
+  isColumnVisible: (status: TaskStatus) => boolean;
+}
+
+const UserPreferencesContext = createContext<UserPreferencesContextType | null>(null);
+
+interface UserPreferencesProviderProps {
+  children: ReactNode;
+  initialPreferences: UserPreferences;
+}
+
+export function UserPreferencesProvider({ children, initialPreferences }: UserPreferencesProviderProps) {
+  const [preferences, setPreferences] = useState<UserPreferences>(initialPreferences);
+
+  // Synchroniser le thème avec le ThemeProvider global (si disponible)
+  useEffect(() => {
+    if (typeof window !== 'undefined') {
+      // Appliquer le thème au document
+      document.documentElement.className = preferences.viewPreferences.theme;
+    }
+  }, [preferences.viewPreferences.theme]);
+
+  // === KANBAN FILTERS ===
+  
+  const updateKanbanFilters = useCallback(async (updates: Partial<KanbanFilters>) => {
+    const newFilters = { ...preferences.kanbanFilters, ...updates };
+    setPreferences(prev => ({ ...prev, kanbanFilters: newFilters }));
+    
+    try {
+      await userPreferencesClient.updateKanbanFilters(updates);
+    } catch (error) {
+      console.warn('Erreur lors de la sauvegarde des filtres Kanban:', error);
+      // Revert optimistic update on error
+      setPreferences(prev => ({ ...prev, kanbanFilters: preferences.kanbanFilters }));
+    }
+  }, [preferences.kanbanFilters]);
+
+  // === VIEW PREFERENCES ===
+  
+  const updateViewPreferences = useCallback(async (updates: Partial<ViewPreferences>) => {
+    const newPreferences = { ...preferences.viewPreferences, ...updates };
+    setPreferences(prev => ({ ...prev, viewPreferences: newPreferences }));
+    
+    try {
+      await userPreferencesClient.updateViewPreferences(updates);
+    } catch (error) {
+      console.warn('Erreur lors de la sauvegarde des préférences de vue:', error);
+      // Revert optimistic update on error
+      setPreferences(prev => ({ ...prev, viewPreferences: preferences.viewPreferences }));
+    }
+  }, [preferences.viewPreferences]);
+
+  const toggleObjectivesVisibility = useCallback(async () => {
+    const newValue = !preferences.viewPreferences.showObjectives;
+    await updateViewPreferences({ showObjectives: newValue });
+  }, [preferences.viewPreferences.showObjectives, updateViewPreferences]);
+
+  const toggleObjectivesCollapse = useCallback(async () => {
+    const newValue = !preferences.viewPreferences.objectivesCollapsed;
+    await updateViewPreferences({ objectivesCollapsed: newValue });
+  }, [preferences.viewPreferences.objectivesCollapsed, updateViewPreferences]);
+
+  const toggleTheme = useCallback(async () => {
+    const newTheme = preferences.viewPreferences.theme === 'dark' ? 'light' : 'dark';
+    await updateViewPreferences({ theme: newTheme });
+  }, [preferences.viewPreferences.theme, updateViewPreferences]);
+
+  const setTheme = useCallback(async (theme: 'light' | 'dark') => {
+    await updateViewPreferences({ theme });
+  }, [updateViewPreferences]);
+
+  // === COLUMN VISIBILITY ===
+  
+  const updateColumnVisibility = useCallback(async (updates: Partial<ColumnVisibility>) => {
+    const newVisibility = { ...preferences.columnVisibility, ...updates };
+    setPreferences(prev => ({ ...prev, columnVisibility: newVisibility }));
+    
+    try {
+      await userPreferencesClient.updateColumnVisibility(updates);
+    } catch (error) {
+      console.warn('Erreur lors de la sauvegarde de la visibilité des colonnes:', error);
+      // Revert optimistic update on error
+      setPreferences(prev => ({ ...prev, columnVisibility: preferences.columnVisibility }));
+    }
+  }, [preferences.columnVisibility]);
+
+  const toggleColumnVisibility = useCallback(async (status: TaskStatus) => {
+    const hiddenStatuses = new Set(preferences.columnVisibility.hiddenStatuses);
+    
+    if (hiddenStatuses.has(status)) {
+      hiddenStatuses.delete(status);
+    } else {
+      hiddenStatuses.add(status);
+    }
+    
+    await updateColumnVisibility({ hiddenStatuses: Array.from(hiddenStatuses) });
+  }, [preferences.columnVisibility.hiddenStatuses, updateColumnVisibility]);
+
+  const isColumnVisible = useCallback((status: TaskStatus) => {
+    return !preferences.columnVisibility.hiddenStatuses.includes(status);
+  }, [preferences.columnVisibility.hiddenStatuses]);
+
+  const contextValue: UserPreferencesContextType = {
+    preferences,
+    updateKanbanFilters,
+    updateViewPreferences,
+    toggleObjectivesVisibility,
+    toggleObjectivesCollapse,
+    toggleTheme,
+    setTheme,
+    updateColumnVisibility,
+    toggleColumnVisibility,
+    isColumnVisible
+  };
+
+  return (
+    <UserPreferencesContext.Provider value={contextValue}>
+      {children}
+    </UserPreferencesContext.Provider>
+  );
+}
+
+export function useUserPreferences() {
+  const context = useContext(UserPreferencesContext);
+  if (!context) {
+    throw new Error('useUserPreferences must be used within a UserPreferencesProvider');
+  }
+  return context;
+}