diff --git a/src/pages/chat/chat.ts b/src/pages/chat/chat.ts
index f57483a..57a520f 100755
--- a/src/pages/chat/chat.ts
+++ b/src/pages/chat/chat.ts
@@ -404,29 +404,84 @@ class ChatElement extends HTMLElement {
 
         try {
             const myAddresses = await this.getMemberFromDevice();
-            console.log('👤 Adresses de l\'expéditeur:', myAddresses);
+            if (!myAddresses) {
+                throw new Error('No paired member found');
+            }
 
-            // Vérifier si un processus de conversation existe déjà
-            const existingProcess = await this.getExistingConversationProcess(this.selectedMemberId!);
-            console.log('🔍 Processus existant:', existingProcess);
+            const existingProcess = await this.getExistingConversationProcess(this.selectedMemberId);
             
+            // Ajoutons des logs pour voir la structure exacte
+            console.log('📝 Process existant:', {
+                fullProcess: existingProcess,
+                messageStructure: existingProcess?.messages?.object?.content?.[0]
+            });
+
+            const messageContent = {
+                text: messageText,
+                timestamp: Date.now(),
+                sender: myAddresses[0],
+                type: 'text', 
+                state: 'initial',  
+                object: {  
+                    content: messageText,
+                    metadata: {
+                        created_at: Date.now(),
+                        last_updated: Date.now()
+                    }
+                }
+            };
+
+            console.log('📝 Nouveau message:', messageContent);
+
             if (existingProcess) {
-                console.log('📝 Mise à jour du processus existant');
-                await this.updateProcessWithNewMessage(existingProcess.process_id, messageText);
+                console.log('✏️ Mise à jour du processus:', {
+                    processId: existingProcess.process_id,
+                    currentMessages: existingProcess.messages.object.content,
+                    newMessage: messageContent
+                });
+                // Mettre à jour le processus existant avec le nouveau message
+                existingProcess.messages.object.content.push(messageContent);
+                existingProcess.messages.object.metadata.last_updated = Date.now();
+                
+                await this.updateProcessWithNewMessage(existingProcess.process_id, messageContent);
+                console.log('✅ Message ajouté au processus existant:', existingProcess.process_id);
             } else {
-                console.log('🆕 Création d\'un nouveau processus');
+                // Créer un nouveau processus de message
+                const messagingTemplate = {
+                    process_id: crypto.randomUUID(),
+                    parent_id: null,
+                    description: 'messaging',
+                    messages: {
+                        state: 'initial',
+                        object: {
+                            type: 'message_list',
+                            content: [messageContent],
+                            content_type: {
+                                allowed: ['text', 'file'],
+                                default: 'text'
+                            },
+                            metadata: {
+                                created_at: Date.now(),
+                                last_updated: Date.now()
+                            }
+                        }
+                    }
+                };
+
                 const result = await this.createMessagingProcess(
                     [{ sp_addresses: [this.selectedMemberId] }],
                     'relay_address',
                     1
                 );
-                console.log('✅ Nouveau processus créé:', result);
-                await this.saveConversationProcessRef(this.selectedMemberId!, (result as any).id);
+
+                await this.saveConversationProcessRef(this.selectedMemberId, messagingTemplate.process_id);
+                console.log('✅ Nouveau processus de message créé:', messagingTemplate.process_id);
             }
 
-            console.log('✅ Message envoyé avec succès');
             messageInput.value = '';
             
+            this.loadMemberChat(this.selectedMemberId);
+
         } catch (error) {
             console.error('❌ Erreur lors de l\'envoi du message:', error);
         }
@@ -446,8 +501,9 @@ class ChatElement extends HTMLElement {
         }
 
         this.selectedMemberId = String(memberId);
-        const memberMessages = this.messagesMock.find(m => String(m.memberId) === String(memberId));
-
+        
+        const existingProcess = await this.getExistingConversationProcess(this.selectedMemberId);
+        
         const chatHeader = this.shadowRoot?.querySelector('#chat-header');
         const messagesContainer = this.shadowRoot?.querySelector('#messages');
 
@@ -458,60 +514,27 @@ class ChatElement extends HTMLElement {
         chatHeader.textContent = `Chat with ${emojis}`;
         messagesContainer.innerHTML = '';
 
-        if (memberMessages) {
-            for (const message of memberMessages.messages) {
+        if (existingProcess?.messages?.object?.content) {
+            for (const message of existingProcess.messages.object.content) {
                 const messageElement = document.createElement('div');
                 messageElement.className = 'message-container';
-                
-                if (message.sender === myAddresses[0]) {
-                    messageElement.style.justifyContent = 'flex-end';
-                } else {
-                    messageElement.style.justifyContent = 'flex-start';
-                }
+                messageElement.style.justifyContent = message.sender === myAddresses[0] ? 'flex-end' : 'flex-start';
 
                 const messageContent = document.createElement('div');
-                messageContent.className = message.class || 'message';
-                
-                if (message.type === 'file') {
-                    messageContent.innerHTML = `
-                        <div class="message-content">
-                            <strong>${await addressToEmoji(message.sender)}</strong>: 
-                            <span class="file-message" style="cursor: pointer; color: #0066cc; text-decoration: underline;">
-                                📎 ${message.fileName}
-                            </span>
-                        </div>
-                        <div class="message-time">${message.time}</div>
-                    `;
-                    
-                    const fileSpan = messageContent.querySelector('.file-message');
-                    fileSpan?.addEventListener('click', () => {
-                        const fileKey = `file_${message.id}`;
-                        const fileData = localStorage.getItem(fileKey);
-                        if (fileData) {
-                            // Créer un lien de téléchargement
-                            const link = document.createElement('a');
-                            link.href = fileData;
-                            link.download = message.fileName;
-                            document.body.appendChild(link);
-                            link.click();
-                            document.body.removeChild(link);
-                        }
-                    });
-                } else {
-                    messageContent.innerHTML = `
-                        <div class="message-content">
-                            <strong>${await addressToEmoji(message.sender)}</strong>: ${message.text}
-                        </div>
-                        <div class="message-time">${message.time}</div>
-                    `;
-                }
+                messageContent.className = `message ${message.sender === myAddresses[0] ? 'user' : ''}`;
+                messageContent.innerHTML = `
+                    <div class="message-content">
+                        <strong>${await addressToEmoji(message.sender)}</strong>: ${message.text}
+                    </div>
+                    <div class="message-time">${new Date(message.timestamp).toLocaleString('fr-FR')}</div>
+                `;
 
                 messageElement.appendChild(messageContent);
                 messagesContainer.appendChild(messageElement);
             }
+            
+            this.scrollToBottom(messagesContainer);
         }
-
-        this.scrollToBottom(messagesContainer);
     }
 
     private async toggleMembers(roleData: any, roleElement: HTMLElement) {
@@ -1103,17 +1126,14 @@ class ChatElement extends HTMLElement {
         }
     }
 
-    private async updateProcessWithNewMessage(processId: string, messageText: string) {
+    private async updateProcessWithNewMessage(processId: string, messageContent: any) {
         const db = await Database.getInstance();
         try {
             const process = await db.getObject('processes', processId);
             if (process) {
-                const myAddresses = await this.getMemberFromDevice();
-                process.messages.object.content.push({
-                    text: messageText,
-                    timestamp: Date.now(),
-                    sender: myAddresses?.[0]
-                });
+                process.messages.object.content.push(messageContent);
+                process.messages.object.metadata.last_updated = Date.now();
+                
                 await db.addObject({
                     storeName: 'processes',
                     key: processId,