Create FolderChat component

app/dashboard/chat/loading.tsx

@@ -1,79 +0,0 @@
-import { Skeleton } from "@/components/ui/skeleton"
-
-export default function ChatLoading() {
-  return (
-    <div className="h-[calc(100vh-8rem)] flex">
-      {/* Sidebar */}
-      <div className="w-80 border-r bg-white flex flex-col">
-        <div className="p-4 border-b">
-          <div className="flex items-center justify-between mb-4">
-            <Skeleton className="h-6 w-24" />
-            <Skeleton className="h-8 w-8" />
-          </div>
-          <Skeleton className="h-10 w-full" />
-        </div>
-
-        <div className="flex-1 overflow-y-auto">
-          {[...Array(5)].map((_, i) => (
-            <div key={i} className="p-4 border-b">
-              <div className="flex items-start space-x-3">
-                <Skeleton className="h-12 w-12 rounded-full" />
-                <div className="flex-1">
-                  <div className="flex items-center justify-between">
-                    <Skeleton className="h-4 w-24" />
-                    <Skeleton className="h-3 w-12" />
-                  </div>
-                  <Skeleton className="h-3 w-32 mt-2" />
-                  <Skeleton className="h-3 w-16 mt-1" />
-                </div>
-              </div>
-            </div>
-          ))}
-        </div>
-      </div>
-
-      {/* Main Chat Area */}
-      <div className="flex-1 flex flex-col">
-        {/* Header */}
-        <div className="p-4 border-b bg-white">
-          <div className="flex items-center justify-between">
-            <div className="flex items-center space-x-3">
-              <Skeleton className="h-10 w-10 rounded-full" />
-              <div>
-                <Skeleton className="h-4 w-32" />
-                <Skeleton className="h-3 w-20 mt-1" />
-              </div>
-            </div>
-            <div className="flex items-center space-x-2">
-              <Skeleton className="h-8 w-8" />
-              <Skeleton className="h-8 w-8" />
-              <Skeleton className="h-8 w-8" />
-            </div>
-          </div>
-        </div>
-
-        {/* Messages */}
-        <div className="flex-1 overflow-y-auto p-4 space-y-4 bg-gray-50">
-          {[...Array(6)].map((_, i) => (
-            <div key={i} className={`flex ${i % 2 === 0 ? "justify-start" : "justify-end"}`}>
-              <div className={`max-w-xs lg:max-w-md p-4 rounded-lg ${i % 2 === 0 ? "bg-white" : "bg-blue-600"}`}>
-                <Skeleton className={`h-4 w-48 ${i % 2 !== 0 ? "bg-blue-500" : ""}`} />
-                <Skeleton className={`h-3 w-16 mt-2 ${i % 2 !== 0 ? "bg-blue-500" : ""}`} />
-              </div>
-            </div>
-          ))}
-        </div>
-
-        {/* Input */}
-        <div className="p-4 border-t bg-white">
-          <div className="flex items-end space-x-2">
-            <Skeleton className="h-8 w-8" />
-            <Skeleton className="h-20 flex-1" />
-            <Skeleton className="h-8 w-8" />
-            <Skeleton className="h-8 w-16" />
-          </div>
-        </div>
-      </div>
-    </div>
-  )
-}

app/dashboard/chat/page.tsx

@@ -1,7 +0,0 @@
-"use client"
-
-import Chat from "@/components/4nk/Chat"
-
-export default function ChatPage() {
-  return <Chat heightClass="h-[calc(100vh-8rem)]" />
-}

app/dashboard/folders/page.tsx

@@ -14,6 +14,8 @@ import {
   SortAsc,
   SortDesc,
   X,
+  MessageSquare,
+  List,
 } from "lucide-react"
 import { FolderData, FolderCreated, FolderPrivateFields, setDefaultFolderRoles } from "@/lib/4nk/models/FolderData"
 import MessageBus from "@/lib/4nk/MessageBus"
@@ -22,6 +24,7 @@ import UserStore from "@/lib/4nk/UserStore"
 import FolderModal from "@/components/4nk/FolderModal"
 import AuthModal from "@/components/4nk/AuthModal"
 import Iframe from "@/components/4nk/Iframe"
+import FolderChat from "@/components/4nk/FolderChat"
 
 type FolderType = 'contrat' | 'projet' | 'rapport' | 'finance' | 'rh' | 'marketing' | 'autre';
 
@@ -32,6 +35,7 @@ export default function FoldersPage() {
   const [currentPath, setCurrentPath] = useState<string[]>(["Racine"])
   const [folderType, setFolderType] = useState<FolderType | null>(null);
   const [isModalOpen, setIsModalOpen] = useState(false);
+  const [activeTab, setActiveTab] = useState<"folders" | "chat">("folders");
 
   // 4NK Integration states
   const [isConnected, setIsConnected] = useState(false)
@@ -356,103 +360,142 @@ export default function FoldersPage() {
             </div>
             
             <div className="flex items-center space-x-2">
+              {activeTab === "folders" && (
+                <Button
+                  onClick={() => handleOpenModal("autre")}
+                  disabled={!isConnected}
+                  className="flex items-center space-x-2"
+                >
+                  <FolderPlus className="h-4 w-4" />
+                  <span>Nouveau dossier</span>
+                </Button>
+              )}
+            </div>
+          </div>
+
+          {/* Tabs */}
+          <div className="flex items-center space-x-4 mb-4">
+            <div className="flex bg-gray-700 rounded-lg p-1">
               <Button
-                onClick={() => handleOpenModal("autre")}
-                disabled={!isConnected}
+                variant={activeTab === "folders" ? "default" : "ghost"}
+                size="sm"
+                onClick={() => setActiveTab("folders")}
                 className="flex items-center space-x-2"
               >
-                <FolderPlus className="h-4 w-4" />
-                <span>Nouveau dossier</span>
+                <List className="h-4 w-4" />
+                <span>Dossiers</span>
+              </Button>
+              <Button
+                variant={activeTab === "chat" ? "default" : "ghost"}
+                size="sm"
+                onClick={() => setActiveTab("chat")}
+                className="flex items-center space-x-2"
+              >
+                <MessageSquare className="h-4 w-4" />
+                <span>Chat</span>
               </Button>
             </div>
           </div>
 
-          {/* Search and filters */}
-          <div className="flex items-center space-x-4">
-            <div className="flex-1 relative">
-              <Search className="absolute left-3 top-1/2 transform -translate-y-1/2 h-4 w-4 text-gray-400" />
-              <Input
-                placeholder="Rechercher des dossiers..."
-                value={searchTerm}
-                onChange={(e) => setSearchTerm(e.target.value)}
-                className="pl-10"
-              />
+          {/* Search and filters - only show for folders tab */}
+          {activeTab === "folders" && (
+            <div className="flex items-center space-x-4">
+              <div className="flex-1 relative">
+                <Search className="absolute left-3 top-1/2 transform -translate-y-1/2 h-4 w-4 text-gray-400" />
+                <Input
+                  placeholder="Rechercher des dossiers..."
+                  value={searchTerm}
+                  onChange={(e) => setSearchTerm(e.target.value)}
+                  className="pl-10"
+                />
+              </div>
+              
+              <div className="flex items-center space-x-2">
+                <Button
+                  variant="outline"
+                  size="sm"
+                  onClick={() => setSortOrder(sortOrder === "asc" ? "desc" : "asc")}
+                >
+                  {sortOrder === "asc" ? <SortAsc className="h-4 w-4" /> : <SortDesc className="h-4 w-4" />}
+                </Button>
+              </div>
             </div>
-            
-            <div className="flex items-center space-x-2">
-              <Button
-                variant="outline"
-                size="sm"
-                onClick={() => setSortOrder(sortOrder === "asc" ? "desc" : "asc")}
-              >
-                {sortOrder === "asc" ? <SortAsc className="h-4 w-4" /> : <SortDesc className="h-4 w-4" />}
-              </Button>
-            </div>
-          </div>
+          )}
         </div>
 
         {/* Content */}
-        <div className="flex-1 p-6 bg-gray-900">
-          {loadingFolders ? (
-            <div className="flex items-center justify-center h-64">
-              <div className="text-center">
-                <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-blue-600 mx-auto mb-4"></div>
-                <p className="text-gray-400">Chargement des dossiers...</p>
-              </div>
-            </div>
-          ) : sortedFolders.length === 0 ? (
-            <div className="flex items-center justify-center h-64">
-              <div className="text-center">
-                <Folder className="h-12 w-12 text-gray-400 mx-auto mb-4" />
-                <h3 className="text-lg font-medium text-gray-100 mb-2">Aucun dossier</h3>
-                <p className="text-gray-400 mb-4">
-                  {searchTerm ? "Aucun dossier ne correspond à votre recherche." : "Commencez par créer votre premier dossier."}
-                </p>
-                {!searchTerm && (
-                  <Button
-                    onClick={() => handleOpenModal("autre")}
-                    disabled={!isConnected}
-                  >
-                    <FolderPlus className="h-4 w-4 mr-2" />
-                    Créer un dossier
-                  </Button>
-                )}
-              </div>
-            </div>
-          ) : (
-            <div className="space-y-4">
-              {/* Folder list */}
-              <div className="space-y-2">
-                {sortedFolders.map((folder) => (
-                  <Card key={folder.folderNumber} className="hover:shadow-md transition-shadow bg-gray-800 border border-gray-700">
-                    <CardContent className="p-4">
-                      <div className="flex items-center justify-between">
-                        <div className="flex items-center space-x-3">
-                          <Folder className="h-5 w-5 text-blue-600" />
-                          <div>
-                            <h3 className="font-medium text-gray-100">{folder.name}</h3>
-                            <p className="text-sm text-gray-400">{folder.description}</p>
-                            <div className="flex items-center space-x-4 mt-1">
-                              <span className="text-xs text-gray-400">#{folder.folderNumber}</span>
-                              <span className="text-xs text-gray-400">
-                                <Clock className="h-3 w-3 inline mr-1" />
-                                {new Date(folder.updated_at).toLocaleDateString()}
-                              </span>
+        <div className="flex-1 bg-gray-900">
+          {activeTab === "folders" ? (
+            <div className="p-6">
+              {loadingFolders ? (
+                <div className="flex items-center justify-center h-64">
+                  <div className="text-center">
+                    <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-blue-600 mx-auto mb-4"></div>
+                    <p className="text-gray-400">Chargement des dossiers...</p>
+                  </div>
+                </div>
+              ) : sortedFolders.length === 0 ? (
+                <div className="flex items-center justify-center h-64">
+                  <div className="text-center">
+                    <Folder className="h-12 w-12 text-gray-400 mx-auto mb-4" />
+                    <h3 className="text-lg font-medium text-gray-100 mb-2">Aucun dossier</h3>
+                    <p className="text-gray-400 mb-4">
+                      {searchTerm ? "Aucun dossier ne correspond à votre recherche." : "Commencez par créer votre premier dossier."}
+                    </p>
+                    {!searchTerm && (
+                      <Button
+                        onClick={() => handleOpenModal("autre")}
+                        disabled={!isConnected}
+                      >
+                        <FolderPlus className="h-4 w-4 mr-2" />
+                        Créer un dossier
+                      </Button>
+                    )}
+                  </div>
+                </div>
+              ) : (
+                <div className="space-y-4">
+                  {/* Folder list */}
+                  <div className="space-y-2">
+                    {sortedFolders.map((folder) => (
+                      <Card key={folder.folderNumber} className="hover:shadow-md transition-shadow bg-gray-800 border border-gray-700">
+                        <CardContent className="p-4">
+                          <div className="flex items-center justify-between">
+                            <div className="flex items-center space-x-3">
+                              <Folder className="h-5 w-5 text-blue-600" />
+                              <div>
+                                <h3 className="font-medium text-gray-100">{folder.name}</h3>
+                                <p className="text-sm text-gray-400">{folder.description}</p>
+                                <div className="flex items-center space-x-4 mt-1">
+                                  <span className="text-xs text-gray-400">#{folder.folderNumber}</span>
+                                  <span className="text-xs text-gray-400">
+                                    <Clock className="h-3 w-3 inline mr-1" />
+                                    {new Date(folder.updated_at).toLocaleDateString()}
+                                  </span>
+                                </div>
+                              </div>
+                            </div>
+                            
+                            <div className="flex items-center space-x-2">
+                              {folder.notes.length > 0 && (
+                                <Badge variant="outline">{folder.notes.length} notes</Badge>
+                              )}
                             </div>
                           </div>
-                        </div>
-                        
-                        <div className="flex items-center space-x-2">
-                          {folder.notes.length > 0 && (
-                            <Badge variant="outline">{folder.notes.length} notes</Badge>
-                          )}
-                        </div>
-                      </div>
-                    </CardContent>
-                  </Card>
-                ))}
-              </div>
+                        </CardContent>
+                      </Card>
+                    ))}
+                  </div>
+                </div>
+              )}
             </div>
+          ) : (
+            <FolderChat
+              heightClass="h-full"
+              folderProcesses={folderProcesses}
+              myFolderProcesses={myFolderProcesses}
+              folderPrivateData={folderPrivateData}
+            />
           )}
         </div>
       </div>

components/4nk/FolderChat.tsx

@@ -0,0 +1,338 @@
+"use client"
+
+import { useState, useEffect } from "react"
+import { Badge } from "@/components/ui/badge"
+import { Button } from "@/components/ui/button"
+import { Input } from "@/components/ui/input"
+import { Textarea } from "@/components/ui/textarea"
+import {
+  MessageSquare,
+  Search,
+  Send,
+  Paperclip,
+  Smile,
+  MoreHorizontal,
+  Users,
+  Circle,
+  Folder,
+  Clock,
+} from "lucide-react"
+
+interface FolderMember {
+  id: string
+  name: string
+  avatar: string
+  isOnline: boolean
+}
+
+interface FolderConversation {
+  id: string
+  folderNumber: string
+  folderName: string
+  members: FolderMember[]
+  lastMessage: string
+  lastMessageTime: string
+  unreadCount: number
+}
+
+interface FolderChatProps {
+  heightClass?: string
+  folderProcesses?: any
+  myFolderProcesses?: string[]
+  folderPrivateData?: Record<string, Record<string, any>>
+}
+
+export default function FolderChat({ 
+  heightClass = "h-[calc(100vh-8rem)]", 
+  folderProcesses, 
+  myFolderProcesses = [],
+  folderPrivateData = {}
+}: FolderChatProps) {
+  const [selectedConversation, setSelectedConversation] = useState("")
+  const [newMessage, setNewMessage] = useState("")
+  const [folderConversations, setFolderConversations] = useState<FolderConversation[]>([])
+  const [isLoading, setIsLoading] = useState(true)
+  const [searchQuery, setSearchQuery] = useState("")
+
+  // Extract folder conversations from processes
+  useEffect(() => {
+    if (folderProcesses && Object.keys(folderProcesses).length > 0) {
+      setIsLoading(true)
+      
+      const conversations: FolderConversation[] = []
+      
+      Object.entries(folderProcesses).forEach(([processId, process]: [string, any]) => {
+        // Only include processes that belong to the user
+        if (!myFolderProcesses.includes(processId)) return
+
+        const latestState = process.states?.[0]
+        if (!latestState) return
+
+        // Check if this process has a folderNumber (indicates it's a folder process)
+        const folderNumber = latestState.pcd_commitment?.folderNumber
+        if (!folderNumber) return
+
+        // Get private data for folder name
+        const privateData = folderPrivateData[latestState.state_id]
+        const folderName = privateData?.name || `Dossier ${folderNumber}`
+
+        // Extract members from roles.owner.members
+        const ownerMembers = latestState.roles?.owner?.members || []
+        const members: FolderMember[] = ownerMembers.map((memberId: string, index: number) => {
+          // Generate avatar from member ID
+          const avatar = memberId.slice(0, 2).toUpperCase()
+          
+          return {
+            id: memberId,
+            name: `Membre ${memberId.slice(0, 8)}`, // Could be enhanced with real names
+            avatar: avatar,
+            isOnline: Math.random() > 0.5 // Random online status for demo
+          }
+        })
+
+        conversations.push({
+          id: processId,
+          folderNumber: folderNumber,
+          folderName: folderName,
+          members: members,
+          lastMessage: "",
+          lastMessageTime: "",
+          unreadCount: 0
+        })
+      })
+      
+      setFolderConversations(conversations)
+      setIsLoading(false)
+    } else {
+      setIsLoading(true)
+      setFolderConversations([])
+    }
+  }, [folderProcesses, myFolderProcesses, folderPrivateData])
+
+  // Filter conversations based on search query
+  const filteredConversations = folderConversations.filter(conversation => {
+    if (!searchQuery.trim()) return true
+    
+    const matchesNumber = conversation.folderNumber.toLowerCase().includes(searchQuery.toLowerCase())
+    const matchesName = conversation.folderName.toLowerCase().includes(searchQuery.toLowerCase())
+    const matchesId = conversation.id.toLowerCase().includes(searchQuery.toLowerCase())
+    
+    return matchesNumber || matchesName || matchesId
+  })
+
+  const currentConversation = folderConversations.find((conv) => conv.id === selectedConversation)
+
+  const handleSendMessage = () => {
+    if (newMessage.trim()) {
+      console.log("Sending message to folder:", selectedConversation, "Message:", newMessage)
+      // Here implement the actual message sending logic
+      setNewMessage("")
+    }
+  }
+
+  return (
+    <div className={`${heightClass} flex`}>
+      {/* Sidebar with folder conversations */}
+      <div className="w-80 border-r bg-white dark:bg-gray-800 flex flex-col">
+        <div className="p-4 border-b border-gray-200 dark:border-gray-700">
+          <div className="mb-4">
+            <h2 className="text-lg font-semibold text-gray-900 dark:text-gray-100 mb-3">
+              Chat Dossiers
+            </h2>
+            <div className="relative">
+              <Search className="absolute left-3 top-1/2 transform -translate-y-1/2 h-4 w-4 text-gray-400" />
+              <Input
+                placeholder="Rechercher un dossier..."
+                value={searchQuery}
+                onChange={(e) => setSearchQuery(e.target.value)}
+                className="pl-10 bg-gray-50 dark:bg-gray-700 border-gray-200 dark:border-gray-600"
+              />
+            </div>
+          </div>
+        </div>
+
+        <div className="flex-1 overflow-y-auto">
+          {isLoading ? (
+            <div className="flex items-center justify-center p-8">
+              <div className="text-gray-500 dark:text-gray-400">Chargement des dossiers...</div>
+            </div>
+          ) : filteredConversations.length > 0 ? (
+            filteredConversations.map((conversation) => (
+              <div
+                key={conversation.id}
+                onClick={() => setSelectedConversation(conversation.id)}
+                className={`p-4 border-b cursor-pointer hover:bg-gray-50 dark:hover:bg-gray-700 ${
+                  selectedConversation === conversation.id
+                    ? "bg-blue-50 dark:bg-blue-900 border-r-2 border-blue-500 dark:border-blue-400"
+                    : ""
+                }`}
+              >
+                <div className="flex items-start space-x-3">
+                  <div className="relative">
+                    <div className="w-12 h-12 bg-green-100 dark:bg-green-800 rounded-full flex items-center justify-center">
+                      <Folder className="h-6 w-6 text-green-600 dark:text-green-400" />
+                    </div>
+                  </div>
+                  <div className="flex-1 min-w-0">
+                    <div className="flex items-center justify-between">
+                      <h3 className="font-medium text-gray-900 dark:text-gray-100 truncate">
+                        {conversation.folderName}
+                      </h3>
+                      {conversation.members.length > 0 && (
+                        <Badge variant="secondary" className="ml-2">
+                          <Users className="h-3 w-3 mr-1" />
+                          {conversation.members.length}
+                        </Badge>
+                      )}
+                    </div>
+                    <p className="text-xs text-gray-500 dark:text-gray-400 mt-1">
+                      #{conversation.folderNumber}
+                    </p>
+                    <p className="text-xs text-gray-500 dark:text-gray-400 mt-1">
+                      {conversation.members.length} membre{conversation.members.length > 1 ? 's' : ''}
+                    </p>
+                  </div>
+                </div>
+              </div>
+            ))
+          ) : (
+            <div className="flex items-center justify-center p-8">
+              <div className="text-center">
+                <Folder className="h-8 w-8 mx-auto text-gray-400 dark:text-gray-500 mb-2" />
+                <p className="text-gray-500 dark:text-gray-400">Aucun dossier trouvé</p>
+                <p className="text-xs text-gray-400 dark:text-gray-500 mt-1">
+                  Essayez de rechercher par nom ou numéro
+                </p>
+              </div>
+            </div>
+          )}
+        </div>
+      </div>
+
+      {/* Main chat area */}
+      <div className="flex-1 flex flex-col">
+        {currentConversation ? (
+          <>
+            {/* Chat header */}
+            <div className="p-4 border-b border-gray-200 dark:border-gray-700 bg-white dark:bg-gray-800">
+              <div className="flex items-center justify-between">
+                <div className="flex items-center space-x-3">
+                  <div className="w-10 h-10 bg-green-100 dark:bg-green-800 rounded-full flex items-center justify-center">
+                    <Folder className="h-5 w-5 text-green-600 dark:text-green-400" />
+                  </div>
+                  <div>
+                    <h3 className="font-medium text-gray-900 dark:text-gray-100">
+                      {currentConversation.folderName}
+                    </h3>
+                    <p className="text-sm text-gray-500 dark:text-gray-400">
+                      Dossier #{currentConversation.folderNumber} • {currentConversation.members.length} membre{currentConversation.members.length > 1 ? 's' : ''}
+                    </p>
+                  </div>
+                </div>
+                <div className="flex items-center space-x-2">
+                  <Button variant="outline" size="sm">
+                    <Users className="h-4 w-4" />
+                  </Button>
+                  <Button variant="outline" size="sm">
+                    <MoreHorizontal className="h-4 w-4" />
+                  </Button>
+                </div>
+              </div>
+              
+              {/* Members list */}
+              {currentConversation.members.length > 0 && (
+                <div className="mt-3 pt-3 border-t border-gray-200 dark:border-gray-700">
+                  <div className="flex items-center space-x-2 mb-2">
+                    <Users className="h-4 w-4 text-gray-500" />
+                    <span className="text-sm font-medium text-gray-700 dark:text-gray-300">
+                      Membres du dossier
+                    </span>
+                  </div>
+                  <div className="flex flex-wrap gap-2">
+                    {currentConversation.members.map((member) => (
+                      <div
+                        key={member.id}
+                        className="flex items-center space-x-2 bg-gray-100 dark:bg-gray-700 rounded-full px-3 py-1"
+                      >
+                        <div className="relative">
+                          <div className="w-6 h-6 bg-blue-100 dark:bg-blue-800 rounded-full flex items-center justify-center">
+                            <span className="text-xs text-blue-600 dark:text-blue-400 font-medium">
+                              {member.avatar}
+                            </span>
+                          </div>
+                          {member.isOnline && (
+                            <Circle className="absolute -bottom-1 -right-1 h-3 w-3 text-green-500 fill-current" />
+                          )}
+                        </div>
+                        <span className="text-xs text-gray-700 dark:text-gray-300">
+                          {member.name}
+                        </span>
+                      </div>
+                    ))}
+                  </div>
+                </div>
+              )}
+            </div>
+
+            {/* Messages area */}
+            <div className="flex-1 overflow-y-auto p-4 space-y-4 bg-gray-50 dark:bg-gray-900">
+              <div className="flex items-center justify-center h-full">
+                <div className="text-center">
+                  <MessageSquare className="h-12 w-12 mx-auto text-gray-400 dark:text-gray-500 mb-4" />
+                  <h3 className="text-lg font-medium text-gray-900 dark:text-gray-100 mb-2">
+                    Aucun message
+                  </h3>
+                  <p className="text-gray-600 dark:text-gray-400">
+                    Commencez une conversation avec les membres de ce dossier
+                  </p>
+                </div>
+              </div>
+            </div>
+
+            {/* Message input */}
+            <div className="p-4 border-t border-gray-200 dark:border-gray-700 bg-white dark:bg-gray-800">
+              <div className="flex items-end space-x-2">
+                <Button variant="outline" size="sm">
+                  <Paperclip className="h-4 w-4" />
+                </Button>
+                <div className="flex-1">
+                  <Textarea
+                    placeholder="Tapez votre message..."
+                    value={newMessage}
+                    onChange={(e) => setNewMessage(e.target.value)}
+                    onKeyPress={(e) => {
+                      if (e.key === "Enter" && !e.shiftKey) {
+                        e.preventDefault();
+                        handleSendMessage();
+                      }
+                    }}
+                    rows={1}
+                    className="resize-none bg-gray-50 dark:bg-gray-900 border border-gray-300 dark:border-gray-700"
+                  />
+                </div>
+                <Button variant="outline" size="sm">
+                  <Smile className="h-4 w-4" />
+                </Button>
+                <Button onClick={handleSendMessage} disabled={!newMessage.trim()}>
+                  <Send className="h-4 w-4" />
+                </Button>
+              </div>
+            </div>
+          </>
+        ) : (
+          <div className="flex-1 flex items-center justify-center bg-gray-50 dark:bg-gray-900">
+            <div className="text-center">
+              <Folder className="h-12 w-12 mx-auto text-gray-400 dark:text-gray-500 mb-4" />
+              <h3 className="text-lg font-medium text-gray-900 dark:text-gray-100 mb-2">
+                Sélectionnez un dossier
+              </h3>
+              <p className="text-gray-600 dark:text-gray-400">
+                Choisissez un dossier pour commencer à discuter avec ses membres
+              </p>
+            </div>
+          </div>
+        )}
+      </div>
+    </div>
+  )
+}