Implementa sistema de chat em tempo real entre agente e cliente

- Adiciona tabela liveChatSessions no schema Convex - Cria convex/liveChat.ts com mutations e queries para chat - Adiciona API routes para maquinas (sessions, messages, poll) - Cria modulo chat.rs no Tauri com ChatRuntime e polling - Adiciona comandos de chat no lib.rs (start/stop polling, open/close window) - Cria componentes React do chat widget (ChatWidget, types) - Adiciona botao "Iniciar Chat" no dashboard (ticket-chat-panel) - Implementa menu de chat no system tray - Polling de 2 segundos para maior responsividade - Janela de chat flutuante, frameless, always-on-top 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-07 01:00:27 -03:00 · 2025-12-07 01:00:27 -03:00 · ba91c1e0f5
commit ba91c1e0f5
parent 0c8d53c0b6
15 changed files with 2004 additions and 15 deletions
--- a/apps/desktop/package.json
+++ b/apps/desktop/package.json
@ -11,6 +11,9 @@
    "gen:icon": "node ./scripts/build-icon.mjs"
  },
  "dependencies": {
+    "@assistant-ui/react": "^0.7.0",
+    "@assistant-ui/react-markdown": "^0.3.0",
+    "@radix-ui/react-scroll-area": "^1.2.3",
    "@radix-ui/react-tabs": "^1.1.13",
    "@tauri-apps/api": "^2",
    "@tauri-apps/plugin-opener": "^2",
@ -19,7 +22,8 @@
    "@tauri-apps/plugin-updater": "^2",
    "lucide-react": "^0.544.0",
    "react": "^19.0.0",
-    "react-dom": "^19.0.0"
+    "react-dom": "^19.0.0",
+    "remark-gfm": "^4.0.0"
  },
  "devDependencies": {
    "@tauri-apps/cli": "^2",
--- a/apps/desktop/src-tauri/src/chat.rs
+++ b/apps/desktop/src-tauri/src/chat.rs
@ -0,0 +1,482 @@
+//! Modulo de Chat em Tempo Real
+//!
+//! Este modulo implementa o sistema de chat entre agentes (dashboard web)
+//! e clientes (Raven desktop). Inclui polling de mensagens, gerenciamento
+//! de janelas de chat e emissao de eventos.
+
+use once_cell::sync::Lazy;
+use parking_lot::Mutex;
+use reqwest::Client;
+use serde::{Deserialize, Serialize};
+use std::sync::Arc;
+use std::time::Duration;
+use tauri::async_runtime::JoinHandle;
+use tauri::{Emitter, Manager, WebviewWindowBuilder, WebviewUrl};
+use tokio::sync::Notify;
+
+// ============================================================================
+// TYPES
+// ============================================================================
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ChatSession {
+    pub session_id: String,
+    pub ticket_id: String,
+    pub ticket_ref: u64,
+    pub ticket_subject: String,
+    pub agent_name: String,
+    pub agent_email: Option<String>,
+    pub agent_avatar_url: Option<String>,
+    pub unread_count: u32,
+    pub last_activity_at: i64,
+    pub started_at: i64,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ChatMessage {
+    pub id: String,
+    pub body: String,
+    pub author_name: String,
+    pub author_avatar_url: Option<String>,
+    pub is_from_machine: bool,
+    pub created_at: i64,
+    pub attachments: Vec<ChatAttachment>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ChatAttachment {
+    pub storage_id: String,
+    pub name: String,
+    pub size: Option<u64>,
+    #[serde(rename = "type")]
+    pub mime_type: Option<String>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ChatPollResponse {
+    pub has_active_sessions: bool,
+    pub sessions: Vec<ChatSessionSummary>,
+    pub total_unread: u32,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ChatSessionSummary {
+    pub ticket_id: String,
+    pub unread_count: u32,
+    pub last_activity_at: i64,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ChatMessagesResponse {
+    pub messages: Vec<ChatMessage>,
+    pub has_session: bool,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct SendMessageResponse {
+    pub message_id: String,
+    pub created_at: i64,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct SessionStartedEvent {
+    pub session: ChatSession,
+}
+
+// ============================================================================
+// HTTP CLIENT
+// ============================================================================
+
+static CHAT_CLIENT: Lazy<Client> = Lazy::new(|| {
+    Client::builder()
+        .user_agent("raven-chat/1.0")
+        .timeout(Duration::from_secs(15))
+        .use_rustls_tls()
+        .build()
+        .expect("failed to build chat http client")
+});
+
+// ============================================================================
+// API FUNCTIONS
+// ============================================================================
+
+pub async fn poll_chat_updates(
+    base_url: &str,
+    token: &str,
+    last_checked_at: Option<i64>,
+) -> Result<ChatPollResponse, String> {
+    let url = format!("{}/api/machines/chat/poll", base_url);
+
+    let mut payload = serde_json::json!({
+        "machineToken": token,
+    });
+
+    if let Some(ts) = last_checked_at {
+        payload["lastCheckedAt"] = serde_json::json!(ts);
+    }
+
+    let response = CHAT_CLIENT
+        .post(&url)
+        .json(&payload)
+        .send()
+        .await
+        .map_err(|e| format!("Falha na requisicao de poll: {e}"))?;
+
+    if !response.status().is_success() {
+        let status = response.status();
+        let body = response.text().await.unwrap_or_default();
+        return Err(format!("Poll falhou: status={}, body={}", status, body));
+    }
+
+    response
+        .json()
+        .await
+        .map_err(|e| format!("Falha ao parsear resposta de poll: {e}"))
+}
+
+pub async fn fetch_sessions(base_url: &str, token: &str) -> Result<Vec<ChatSession>, String> {
+    let url = format!("{}/api/machines/chat/sessions", base_url);
+
+    let payload = serde_json::json!({
+        "machineToken": token,
+    });
+
+    let response = CHAT_CLIENT
+        .post(&url)
+        .json(&payload)
+        .send()
+        .await
+        .map_err(|e| format!("Falha na requisicao de sessions: {e}"))?;
+
+    if !response.status().is_success() {
+        let status = response.status();
+        let body = response.text().await.unwrap_or_default();
+        return Err(format!("Sessions falhou: status={}, body={}", status, body));
+    }
+
+    #[derive(Deserialize)]
+    struct SessionsResponse {
+        sessions: Vec<ChatSession>,
+    }
+
+    let data: SessionsResponse = response
+        .json()
+        .await
+        .map_err(|e| format!("Falha ao parsear resposta de sessions: {e}"))?;
+
+    Ok(data.sessions)
+}
+
+pub async fn fetch_messages(
+    base_url: &str,
+    token: &str,
+    ticket_id: &str,
+    since: Option<i64>,
+) -> Result<ChatMessagesResponse, String> {
+    let url = format!("{}/api/machines/chat/messages", base_url);
+
+    let mut payload = serde_json::json!({
+        "machineToken": token,
+        "ticketId": ticket_id,
+        "action": "list",
+    });
+
+    if let Some(ts) = since {
+        payload["since"] = serde_json::json!(ts);
+    }
+
+    let response = CHAT_CLIENT
+        .post(&url)
+        .json(&payload)
+        .send()
+        .await
+        .map_err(|e| format!("Falha na requisicao de messages: {e}"))?;
+
+    if !response.status().is_success() {
+        let status = response.status();
+        let body = response.text().await.unwrap_or_default();
+        return Err(format!("Messages falhou: status={}, body={}", status, body));
+    }
+
+    response
+        .json()
+        .await
+        .map_err(|e| format!("Falha ao parsear resposta de messages: {e}"))
+}
+
+pub async fn send_message(
+    base_url: &str,
+    token: &str,
+    ticket_id: &str,
+    body: &str,
+) -> Result<SendMessageResponse, String> {
+    let url = format!("{}/api/machines/chat/messages", base_url);
+
+    let payload = serde_json::json!({
+        "machineToken": token,
+        "ticketId": ticket_id,
+        "action": "send",
+        "body": body,
+    });
+
+    let response = CHAT_CLIENT
+        .post(&url)
+        .json(&payload)
+        .send()
+        .await
+        .map_err(|e| format!("Falha na requisicao de send: {e}"))?;
+
+    if !response.status().is_success() {
+        let status = response.status();
+        let body = response.text().await.unwrap_or_default();
+        return Err(format!("Send falhou: status={}, body={}", status, body));
+    }
+
+    response
+        .json()
+        .await
+        .map_err(|e| format!("Falha ao parsear resposta de send: {e}"))
+}
+
+// ============================================================================
+// CHAT RUNTIME
+// ============================================================================
+
+struct ChatPollerHandle {
+    stop_signal: Arc<Notify>,
+    join_handle: JoinHandle<()>,
+}
+
+impl ChatPollerHandle {
+    fn stop(self) {
+        self.stop_signal.notify_waiters();
+        self.join_handle.abort();
+    }
+}
+
+#[derive(Default, Clone)]
+pub struct ChatRuntime {
+    inner: Arc<Mutex<Option<ChatPollerHandle>>>,
+    last_sessions: Arc<Mutex<Vec<ChatSession>>>,
+}
+
+impl ChatRuntime {
+    pub fn new() -> Self {
+        Self {
+            inner: Arc::new(Mutex::new(None)),
+            last_sessions: Arc::new(Mutex::new(Vec::new())),
+        }
+    }
+
+    pub fn start_polling(
+        &self,
+        base_url: String,
+        token: String,
+        app: tauri::AppHandle,
+    ) -> Result<(), String> {
+        let sanitized_base = base_url.trim().trim_end_matches('/').to_string();
+        if sanitized_base.is_empty() {
+            return Err("URL base invalida".to_string());
+        }
+
+        // Para polling existente
+        {
+            let mut guard = self.inner.lock();
+            if let Some(handle) = guard.take() {
+                handle.stop();
+            }
+        }
+
+        let stop_signal = Arc::new(Notify::new());
+        let stop_clone = stop_signal.clone();
+        let base_clone = sanitized_base.clone();
+        let token_clone = token.clone();
+        let last_sessions = self.last_sessions.clone();
+
+        let join_handle = tauri::async_runtime::spawn(async move {
+            crate::log_info!("Chat polling iniciado");
+
+            let mut last_checked_at: Option<i64> = None;
+            let poll_interval = Duration::from_secs(2); // Intervalo reduzido para maior responsividade
+
+            loop {
+                tokio::select! {
+                    _ = stop_clone.notified() => {
+                        crate::log_info!("Chat polling encerrado");
+                        break;
+                    }
+                    _ = tokio::time::sleep(poll_interval) => {
+                        match poll_chat_updates(&base_clone, &token_clone, last_checked_at).await {
+                            Ok(result) => {
+                                last_checked_at = Some(chrono::Utc::now().timestamp_millis());
+
+                                if result.has_active_sessions {
+                                    // Verificar novas sessoes
+                                    let prev_sessions: Vec<String> = {
+                                        last_sessions.lock().iter().map(|s| s.session_id.clone()).collect()
+                                    };
+
+                                    // Buscar detalhes das sessoes
+                                    if let Ok(sessions) = fetch_sessions(&base_clone, &token_clone).await {
+                                        for session in &sessions {
+                                            if !prev_sessions.contains(&session.session_id) {
+                                                // Nova sessao! Emitir evento
+                                                crate::log_info!(
+                                                    "Nova sessao de chat: ticket={}",
+                                                    session.ticket_id
+                                                );
+                                                let _ = app.emit(
+                                                    "raven://chat/session-started",
+                                                    SessionStartedEvent {
+                                                        session: session.clone(),
+                                                    },
+                                                );
+
+                                                // Abrir janela de chat automaticamente
+                                                if let Err(e) = open_chat_window_internal(
+                                                    &app,
+                                                    &session.ticket_id,
+                                                ) {
+                                                    crate::log_error!(
+                                                        "Falha ao abrir janela de chat: {e}"
+                                                    );
+                                                }
+                                            }
+                                        }
+
+                                        // Atualizar cache
+                                        *last_sessions.lock() = sessions;
+                                    }
+
+                                    // Verificar mensagens nao lidas e emitir evento
+                                    if result.total_unread > 0 {
+                                        crate::log_info!(
+                                            "Chat: {} mensagens nao lidas",
+                                            result.total_unread
+                                        );
+                                        let _ = app.emit(
+                                            "raven://chat/unread-update",
+                                            serde_json::json!({
+                                                "totalUnread": result.total_unread,
+                                                "sessions": result.sessions
+                                            }),
+                                        );
+                                    }
+                                } else {
+                                    // Sem sessoes ativas
+                                    *last_sessions.lock() = Vec::new();
+                                }
+                            }
+                            Err(e) => {
+                                crate::log_warn!("Falha no polling de chat: {e}");
+                            }
+                        }
+                    }
+                }
+            }
+        });
+
+        let mut guard = self.inner.lock();
+        *guard = Some(ChatPollerHandle {
+            stop_signal,
+            join_handle,
+        });
+
+        Ok(())
+    }
+
+    pub fn stop(&self) {
+        let mut guard = self.inner.lock();
+        if let Some(handle) = guard.take() {
+            handle.stop();
+        }
+    }
+
+    pub fn get_sessions(&self) -> Vec<ChatSession> {
+        self.last_sessions.lock().clone()
+    }
+}
+
+// ============================================================================
+// WINDOW MANAGEMENT
+// ============================================================================
+
+fn open_chat_window_internal(app: &tauri::AppHandle, ticket_id: &str) -> Result<(), String> {
+    let label = format!("chat-{}", ticket_id);
+
+    // Verificar se ja existe
+    if let Some(window) = app.get_webview_window(&label) {
+        window.show().map_err(|e| e.to_string())?;
+        window.set_focus().map_err(|e| e.to_string())?;
+        return Ok(());
+    }
+
+    // Obter tamanho da tela para posicionar no canto inferior direito
+    let monitors = app.available_monitors().map_err(|e| e.to_string())?;
+    let primary = monitors.into_iter().next();
+
+    let (x, y) = if let Some(monitor) = primary {
+        let size = monitor.size();
+        let scale = monitor.scale_factor();
+        let width = 380.0;
+        let height = 520.0;
+        let margin = 20.0;
+        let taskbar_height = 50.0;
+        (
+            (size.width as f64 / scale) - width - margin,
+            (size.height as f64 / scale) - height - margin - taskbar_height,
+        )
+    } else {
+        (100.0, 100.0)
+    };
+
+    let url_path = format!("/chat?ticketId={}", ticket_id);
+
+    WebviewWindowBuilder::new(
+        app,
+        &label,
+        WebviewUrl::App(url_path.into()),
+    )
+    .title("Chat de Suporte")
+    .inner_size(380.0, 520.0)
+    .min_inner_size(300.0, 400.0)
+    .position(x, y)
+    .decorations(false) // Frameless
+    .always_on_top(true)
+    .skip_taskbar(true)
+    .focused(true)
+    .visible(true)
+    .build()
+    .map_err(|e| e.to_string())?;
+
+    crate::log_info!("Janela de chat aberta: {}", label);
+    Ok(())
+}
+
+pub fn open_chat_window(app: &tauri::AppHandle, ticket_id: &str) -> Result<(), String> {
+    open_chat_window_internal(app, ticket_id)
+}
+
+pub fn close_chat_window(app: &tauri::AppHandle, ticket_id: &str) -> Result<(), String> {
+    let label = format!("chat-{}", ticket_id);
+    if let Some(window) = app.get_webview_window(&label) {
+        window.close().map_err(|e| e.to_string())?;
+    }
+    Ok(())
+}
+
+pub fn minimize_chat_window(app: &tauri::AppHandle, ticket_id: &str) -> Result<(), String> {
+    let label = format!("chat-{}", ticket_id);
+    if let Some(window) = app.get_webview_window(&label) {
+        window.hide().map_err(|e| e.to_string())?;
+    }
+    Ok(())
+}
--- a/apps/desktop/src-tauri/src/lib.rs
+++ b/apps/desktop/src-tauri/src/lib.rs
@ -1,9 +1,11 @@
 mod agent;
+mod chat;
 #[cfg(target_os = "windows")]
 mod rustdesk;
 mod usb_control;

 use agent::{collect_inventory_plain, collect_profile, AgentRuntime, MachineProfile};
+use chat::{ChatRuntime, ChatSession, ChatMessagesResponse, SendMessageResponse};
 use chrono::Local;
 use usb_control::{UsbPolicy, UsbPolicyResult};
 use tauri::{Emitter, Manager, WindowEvent};
@ -222,10 +224,76 @@ fn refresh_usb_policy() -> Result<(), String> {
    usb_control::refresh_group_policy().map_err(|e| e.to_string())
 }

+// ============================================================================
+// COMANDOS DE CHAT
+// ============================================================================
+
+#[tauri::command]
+fn start_chat_polling(
+    state: tauri::State<ChatRuntime>,
+    app: tauri::AppHandle,
+    base_url: String,
+    token: String,
+) -> Result<(), String> {
+    state.start_polling(base_url, token, app)
+}
+
+#[tauri::command]
+fn stop_chat_polling(state: tauri::State<ChatRuntime>) -> Result<(), String> {
+    state.stop();
+    Ok(())
+}
+
+#[tauri::command]
+fn get_chat_sessions(state: tauri::State<ChatRuntime>) -> Vec<ChatSession> {
+    state.get_sessions()
+}
+
+#[tauri::command]
+async fn fetch_chat_sessions(base_url: String, token: String) -> Result<Vec<ChatSession>, String> {
+    chat::fetch_sessions(&base_url, &token).await
+}
+
+#[tauri::command]
+async fn fetch_chat_messages(
+    base_url: String,
+    token: String,
+    ticket_id: String,
+    since: Option<i64>,
+) -> Result<ChatMessagesResponse, String> {
+    chat::fetch_messages(&base_url, &token, &ticket_id, since).await
+}
+
+#[tauri::command]
+async fn send_chat_message(
+    base_url: String,
+    token: String,
+    ticket_id: String,
+    body: String,
+) -> Result<SendMessageResponse, String> {
+    chat::send_message(&base_url, &token, &ticket_id, &body).await
+}
+
+#[tauri::command]
+fn open_chat_window(app: tauri::AppHandle, ticket_id: String) -> Result<(), String> {
+    chat::open_chat_window(&app, &ticket_id)
+}
+
+#[tauri::command]
+fn close_chat_window(app: tauri::AppHandle, ticket_id: String) -> Result<(), String> {
+    chat::close_chat_window(&app, &ticket_id)
+}
+
+#[tauri::command]
+fn minimize_chat_window(app: tauri::AppHandle, ticket_id: String) -> Result<(), String> {
+    chat::minimize_chat_window(&app, &ticket_id)
+}
+
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
    tauri::Builder::default()
        .manage(AgentRuntime::new())
+        .manage(ChatRuntime::new())
        .plugin(tauri_plugin_opener::init())
        .plugin(StorePluginBuilder::default().build())
        .plugin(tauri_plugin_updater::Builder::new().build())
@ -249,13 +317,14 @@ pub fn run() {
                setup_raven_autostart();
                setup_tray(&app.handle())?;

-                // Tenta iniciar o agente em background se houver credenciais salvas
+                // Tenta iniciar o agente e chat em background se houver credenciais salvas
                let app_handle = app.handle().clone();
-                let runtime = app.state::<AgentRuntime>().inner().clone();
+                let agent_runtime = app.state::<AgentRuntime>().inner().clone();
+                let chat_runtime = app.state::<ChatRuntime>().inner().clone();
                tauri::async_runtime::spawn(async move {
                    // Aguarda um pouco para o app estabilizar
                    tokio::time::sleep(tokio::time::Duration::from_secs(2)).await;
-                    if let Err(e) = try_start_background_agent(&app_handle, runtime).await {
+                    if let Err(e) = try_start_background_agent(&app_handle, agent_runtime, chat_runtime).await {
                        log_warn!("Agente nao iniciado em background: {e}");
                    }
                });
@ -272,7 +341,17 @@ pub fn run() {
            ensure_rustdesk_and_emit,
            apply_usb_policy,
            get_usb_policy,
-            refresh_usb_policy
+            refresh_usb_policy,
+            // Chat commands
+            start_chat_polling,
+            stop_chat_polling,
+            get_chat_sessions,
+            fetch_chat_sessions,
+            fetch_chat_messages,
+            send_chat_message,
+            open_chat_window,
+            close_chat_window,
+            minimize_chat_window
        ])
        .run(tauri::generate_context!())
        .expect("error while running tauri application");
@ -333,9 +412,10 @@ fn setup_raven_autostart() {
 #[cfg(target_os = "windows")]
 fn setup_tray(app: &tauri::AppHandle) -> tauri::Result<()> {
    let show_item = MenuItemBuilder::with_id("show", "Mostrar").build(app)?;
+    let chat_item = MenuItemBuilder::with_id("chat", "Abrir Chat").build(app)?;
    let quit_item = MenuItemBuilder::with_id("quit", "Sair").build(app)?;
    let menu = MenuBuilder::new(app)
-        .items(&[&show_item, &quit_item])
+        .items(&[&show_item, &chat_item, &quit_item])
        .build()?;

    let mut builder = TrayIconBuilder::new()
@ -348,6 +428,17 @@ fn setup_tray(app: &tauri::AppHandle) -> tauri::Result<()> {
                        let _ = win.set_focus();
                    }
                }
+                "chat" => {
+                    // Abrir janela de chat se houver sessao ativa
+                    if let Some(chat_runtime) = tray.app_handle().try_state::<ChatRuntime>() {
+                        let sessions = chat_runtime.get_sessions();
+                        if let Some(session) = sessions.first() {
+                            if let Err(e) = chat::open_chat_window(tray.app_handle(), &session.ticket_id) {
+                                log_error!("Falha ao abrir janela de chat: {e}");
+                            }
+                        }
+                    }
+                }
                "quit" => {
                    tray.app_handle().exit(0);
                }
@ -376,7 +467,8 @@ fn setup_tray(app: &tauri::AppHandle) -> tauri::Result<()> {
 #[cfg(target_os = "windows")]
 async fn try_start_background_agent(
    app: &tauri::AppHandle,
-    runtime: AgentRuntime,
+    agent_runtime: AgentRuntime,
+    chat_runtime: ChatRuntime,
 ) -> Result<(), String> {
    log_info!("Verificando credenciais salvas para iniciar agente...");

@ -422,7 +514,7 @@ async fn try_start_background_agent(
        interval
    );

-    runtime
+    agent_runtime
        .start_heartbeat(
            api_base_url.to_string(),
            token.to_string(),
@ -432,5 +524,17 @@ async fn try_start_background_agent(
        .map_err(|e| format!("Falha ao iniciar heartbeat: {e}"))?;

    log_info!("Agente iniciado com sucesso em background");
+
+    // Iniciar chat polling
+    if let Err(e) = chat_runtime.start_polling(
+        api_base_url.to_string(),
+        token.to_string(),
+        app.clone(),
+    ) {
+        log_warn!("Falha ao iniciar chat polling: {e}");
+    } else {
+        log_info!("Chat polling iniciado com sucesso");
+    }
+
    Ok(())
 }
--- a/apps/desktop/src/chat/ChatWidget.tsx
+++ b/apps/desktop/src/chat/ChatWidget.tsx
@ -0,0 +1,363 @@
+import { useCallback, useEffect, useRef, useState } from "react"
+import { invoke } from "@tauri-apps/api/core"
+import { listen } from "@tauri-apps/api/event"
+import { Store } from "@tauri-apps/plugin-store"
+import { Send, X, Minus, Loader2, Headphones } from "lucide-react"
+import type { ChatMessage, ChatMessagesResponse, SendMessageResponse } from "./types"
+
+interface ChatWidgetProps {
+  ticketId: string
+}
+
+export function ChatWidget({ ticketId }: ChatWidgetProps) {
+  const [messages, setMessages] = useState<ChatMessage[]>([])
+  const [inputValue, setInputValue] = useState("")
+  const [isLoading, setIsLoading] = useState(true)
+  const [isSending, setIsSending] = useState(false)
+  const [error, setError] = useState<string | null>(null)
+  const [ticketInfo, setTicketInfo] = useState<{ ref: number; subject: string; agentName: string } | null>(null)
+  const [hasSession, setHasSession] = useState(false)
+
+  const messagesEndRef = useRef<HTMLDivElement>(null)
+  const lastFetchRef = useRef<number>(0)
+  const pollIntervalRef = useRef<ReturnType<typeof setInterval> | null>(null)
+
+  // Scroll para o final quando novas mensagens chegam
+  const scrollToBottom = useCallback(() => {
+    messagesEndRef.current?.scrollIntoView({ behavior: "smooth" })
+  }, [])
+
+  useEffect(() => {
+    scrollToBottom()
+  }, [messages, scrollToBottom])
+
+  // Carregar configuracao do store
+  const loadConfig = useCallback(async () => {
+    try {
+      const store = await Store.load("machine-agent.json")
+      const token = await store.get<string>("token")
+      const config = await store.get<{ apiBaseUrl: string }>("config")
+
+      if (!token || !config?.apiBaseUrl) {
+        setError("Maquina nao registrada")
+        setIsLoading(false)
+        return null
+      }
+
+      return { token, baseUrl: config.apiBaseUrl }
+    } catch (err) {
+      setError("Erro ao carregar configuracao")
+      setIsLoading(false)
+      return null
+    }
+  }, [])
+
+  // Buscar mensagens
+  const fetchMessages = useCallback(async (baseUrl: string, token: string, since?: number) => {
+    try {
+      const response = await invoke<ChatMessagesResponse>("fetch_chat_messages", {
+        baseUrl,
+        token,
+        ticketId,
+        since: since ?? null,
+      })
+
+      setHasSession(response.hasSession)
+
+      if (response.messages.length > 0) {
+        if (since) {
+          // Adicionar apenas novas mensagens
+          setMessages(prev => {
+            const existingIds = new Set(prev.map(m => m.id))
+            const newMsgs = response.messages.filter(m => !existingIds.has(m.id))
+            return [...prev, ...newMsgs]
+          })
+        } else {
+          // Primeira carga
+          setMessages(response.messages)
+        }
+        lastFetchRef.current = Math.max(...response.messages.map(m => m.createdAt))
+      }
+
+      return response
+    } catch (err) {
+      console.error("Erro ao buscar mensagens:", err)
+      return null
+    }
+  }, [ticketId])
+
+  // Buscar info da sessao
+  const fetchSessionInfo = useCallback(async (baseUrl: string, token: string) => {
+    try {
+      const sessions = await invoke<Array<{
+        ticketId: string
+        ticketRef: number
+        ticketSubject: string
+        agentName: string
+      }>>("fetch_chat_sessions", { baseUrl, token })
+
+      const session = sessions.find(s => s.ticketId === ticketId)
+      if (session) {
+        setTicketInfo({
+          ref: session.ticketRef,
+          subject: session.ticketSubject,
+          agentName: session.agentName,
+        })
+      }
+    } catch (err) {
+      console.error("Erro ao buscar sessao:", err)
+    }
+  }, [ticketId])
+
+  // Inicializacao
+  useEffect(() => {
+    let mounted = true
+
+    const init = async () => {
+      const config = await loadConfig()
+      if (!config || !mounted) return
+
+      const { baseUrl, token } = config
+
+      // Buscar sessao e mensagens iniciais
+      await Promise.all([
+        fetchSessionInfo(baseUrl, token),
+        fetchMessages(baseUrl, token),
+      ])
+
+      if (!mounted) return
+      setIsLoading(false)
+
+      // Iniciar polling (2 segundos para maior responsividade)
+      pollIntervalRef.current = setInterval(async () => {
+        await fetchMessages(baseUrl, token, lastFetchRef.current)
+      }, 2000)
+    }
+
+    init()
+
+    // Listener para eventos de nova mensagem do Tauri
+    const unlistenPromise = listen<{ ticketId: string; message: ChatMessage }>(
+      "raven://chat/new-message",
+      (event) => {
+        if (event.payload.ticketId === ticketId) {
+          setMessages(prev => {
+            if (prev.some(m => m.id === event.payload.message.id)) {
+              return prev
+            }
+            return [...prev, event.payload.message]
+          })
+        }
+      }
+    )
+
+    return () => {
+      mounted = false
+      if (pollIntervalRef.current) {
+        clearInterval(pollIntervalRef.current)
+      }
+      unlistenPromise.then(unlisten => unlisten())
+    }
+  }, [ticketId, loadConfig, fetchMessages, fetchSessionInfo])
+
+  // Enviar mensagem
+  const handleSend = async () => {
+    if (!inputValue.trim() || isSending) return
+
+    const messageText = inputValue.trim()
+    setInputValue("")
+    setIsSending(true)
+
+    try {
+      const config = await loadConfig()
+      if (!config) {
+        setIsSending(false)
+        return
+      }
+
+      const response = await invoke<SendMessageResponse>("send_chat_message", {
+        baseUrl: config.baseUrl,
+        token: config.token,
+        ticketId,
+        body: messageText,
+      })
+
+      // Adicionar mensagem localmente
+      setMessages(prev => [...prev, {
+        id: response.messageId,
+        body: messageText,
+        authorName: "Voce",
+        isFromMachine: true,
+        createdAt: response.createdAt,
+        attachments: [],
+      }])
+
+      lastFetchRef.current = response.createdAt
+    } catch (err) {
+      console.error("Erro ao enviar mensagem:", err)
+      // Restaurar input em caso de erro
+      setInputValue(messageText)
+    } finally {
+      setIsSending(false)
+    }
+  }
+
+  const handleMinimize = () => {
+    invoke("minimize_chat_window", { ticketId })
+  }
+
+  const handleClose = () => {
+    invoke("close_chat_window", { ticketId })
+  }
+
+  const handleKeyDown = (e: React.KeyboardEvent) => {
+    if (e.key === "Enter" && !e.shiftKey) {
+      e.preventDefault()
+      handleSend()
+    }
+  }
+
+  if (isLoading) {
+    return (
+      <div className="flex h-screen flex-col items-center justify-center bg-white">
+        <Loader2 className="size-8 animate-spin text-slate-400" />
+        <p className="mt-2 text-sm text-slate-500">Carregando chat...</p>
+      </div>
+    )
+  }
+
+  if (error) {
+    return (
+      <div className="flex h-screen flex-col items-center justify-center bg-white p-4">
+        <p className="text-sm text-red-600">{error}</p>
+      </div>
+    )
+  }
+
+  if (!hasSession) {
+    return (
+      <div className="flex h-screen flex-col items-center justify-center bg-white p-4">
+        <p className="text-sm text-slate-500">Nenhuma sessao de chat ativa</p>
+      </div>
+    )
+  }
+
+  return (
+    <div className="flex h-screen flex-col bg-white">
+      {/* Header - arrastavel */}
+      <div
+        data-tauri-drag-region
+        className="flex items-center justify-between border-b border-slate-200 bg-slate-50 px-4 py-3"
+      >
+        <div className="flex items-center gap-3">
+          <div className="flex size-10 items-center justify-center rounded-full bg-black text-white">
+            <Headphones className="size-5" />
+          </div>
+          <div>
+            <p className="text-sm font-semibold text-slate-900">
+              {ticketInfo?.agentName ?? "Suporte"}
+            </p>
+            {ticketInfo && (
+              <p className="text-xs text-slate-500">
+                Chamado #{ticketInfo.ref}
+              </p>
+            )}
+          </div>
+        </div>
+        <div className="flex items-center gap-1">
+          <button
+            onClick={handleMinimize}
+            className="rounded p-1.5 text-slate-400 hover:bg-slate-200 hover:text-slate-600"
+          >
+            <Minus className="size-4" />
+          </button>
+          <button
+            onClick={handleClose}
+            className="rounded p-1.5 text-slate-400 hover:bg-slate-200 hover:text-slate-600"
+          >
+            <X className="size-4" />
+          </button>
+        </div>
+      </div>
+
+      {/* Mensagens */}
+      <div className="flex-1 overflow-y-auto p-4">
+        {messages.length === 0 ? (
+          <div className="flex h-full flex-col items-center justify-center text-center">
+            <p className="text-sm text-slate-400">
+              Nenhuma mensagem ainda
+            </p>
+            <p className="mt-1 text-xs text-slate-400">
+              O agente iniciara a conversa em breve
+            </p>
+          </div>
+        ) : (
+          <div className="space-y-3">
+            {messages.map((msg) => (
+              <div
+                key={msg.id}
+                className={`flex ${msg.isFromMachine ? "justify-end" : "justify-start"}`}
+              >
+                <div
+                  className={`max-w-[80%] rounded-2xl px-4 py-2 ${
+                    msg.isFromMachine
+                      ? "bg-black text-white"
+                      : "bg-slate-100 text-slate-900"
+                  }`}
+                >
+                  {!msg.isFromMachine && (
+                    <p className="mb-1 text-xs font-medium text-slate-500">
+                      {msg.authorName}
+                    </p>
+                  )}
+                  <p className="whitespace-pre-wrap text-sm">{msg.body}</p>
+                  <p
+                    className={`mt-1 text-right text-xs ${
+                      msg.isFromMachine ? "text-white/60" : "text-slate-400"
+                    }`}
+                  >
+                    {formatTime(msg.createdAt)}
+                  </p>
+                </div>
+              </div>
+            ))}
+            <div ref={messagesEndRef} />
+          </div>
+        )}
+      </div>
+
+      {/* Input */}
+      <div className="border-t border-slate-200 p-3">
+        <div className="flex items-end gap-2">
+          <textarea
+            value={inputValue}
+            onChange={(e) => setInputValue(e.target.value)}
+            onKeyDown={handleKeyDown}
+            placeholder="Digite sua mensagem..."
+            className="max-h-24 min-h-[40px] flex-1 resize-none rounded-lg border border-slate-300 px-3 py-2 text-sm focus:border-black focus:outline-none focus:ring-1 focus:ring-black"
+            rows={1}
+          />
+          <button
+            onClick={handleSend}
+            disabled={!inputValue.trim() || isSending}
+            className="flex size-10 items-center justify-center rounded-lg bg-black text-white transition hover:bg-black/90 disabled:opacity-50"
+          >
+            {isSending ? (
+              <Loader2 className="size-4 animate-spin" />
+            ) : (
+              <Send className="size-4" />
+            )}
+          </button>
+        </div>
+      </div>
+    </div>
+  )
+}
+
+function formatTime(timestamp: number): string {
+  const date = new Date(timestamp)
+  return date.toLocaleTimeString("pt-BR", {
+    hour: "2-digit",
+    minute: "2-digit",
+  })
+}
--- a/apps/desktop/src/chat/index.tsx
+++ b/apps/desktop/src/chat/index.tsx
@ -0,0 +1,20 @@
+import { ChatWidget } from "./ChatWidget"
+
+export function ChatApp() {
+  // Obter ticketId da URL
+  const params = new URLSearchParams(window.location.search)
+  const ticketId = params.get("ticketId")
+
+  if (!ticketId) {
+    return (
+      <div className="flex h-screen flex-col items-center justify-center bg-white p-4">
+        <p className="text-sm text-red-600">Erro: ticketId nao fornecido</p>
+      </div>
+    )
+  }
+
+  return <ChatWidget ticketId={ticketId} />
+}
+
+export { ChatWidget }
+export * from "./types"
--- a/apps/desktop/src/chat/types.ts
+++ b/apps/desktop/src/chat/types.ts
@ -0,0 +1,45 @@
+// Tipos para o sistema de chat
+
+export interface ChatSession {
+  sessionId: string
+  ticketId: string
+  ticketRef: number
+  ticketSubject: string
+  agentName: string
+  agentEmail?: string
+  agentAvatarUrl?: string
+  unreadCount: number
+  lastActivityAt: number
+  startedAt: number
+}
+
+export interface ChatMessage {
+  id: string
+  body: string
+  authorName: string
+  authorAvatarUrl?: string
+  isFromMachine: boolean
+  createdAt: number
+  attachments: ChatAttachment[]
+}
+
+export interface ChatAttachment {
+  storageId: string
+  name: string
+  size?: number
+  type?: string
+}
+
+export interface ChatMessagesResponse {
+  messages: ChatMessage[]
+  hasSession: boolean
+}
+
+export interface SendMessageResponse {
+  messageId: string
+  createdAt: number
+}
+
+export interface SessionStartedEvent {
+  session: ChatSession
+}
--- a/apps/desktop/src/main.tsx
+++ b/apps/desktop/src/main.tsx
@ -8,6 +8,7 @@ import { appLocalDataDir, join } from "@tauri-apps/api/path"
 import { ExternalLink, Eye, EyeOff, Loader2, RefreshCw } from "lucide-react"
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "./components/ui/tabs"
 import { cn } from "./lib/utils"
+import { ChatApp } from "./chat"
 import { DeactivationScreen } from "./components/DeactivationScreen"

 type MachineOs = {
@ -1642,5 +1643,18 @@ function StatusBadge({ status, className }: { status: string | null; className?:
  )
 }

+// Roteamento simples baseado no path
+function RootApp() {
+  const path = window.location.pathname
+
+  // Rota /chat - janela de chat flutuante
+  if (path === "/chat" || path.startsWith("/chat?")) {
+    return <ChatApp />
+  }
+
+  // Rota padrao - aplicacao principal
+  return <App />
+}
+
 const root = document.getElementById("root") || (() => { const el = document.createElement("div"); el.id = "root"; document.body.appendChild(el); return el })()
-createRoot(root).render(<App />)
+createRoot(root).render(<RootApp />)
--- a/convex/liveChat.ts
+++ b/convex/liveChat.ts
@ -0,0 +1,512 @@
+import { v } from "convex/values"
+import { mutation, query, type MutationCtx, type QueryCtx } from "./_generated/server"
+import { ConvexError } from "convex/values"
+import type { Doc, Id } from "./_generated/dataModel"
+import { sha256 } from "@noble/hashes/sha256"
+import { bytesToHex as toHex } from "@noble/hashes/utils"
+
+// ============================================
+// HELPERS
+// ============================================
+
+function hashToken(token: string) {
+  return toHex(sha256(token))
+}
+
+async function validateMachineToken(
+  ctx: MutationCtx | QueryCtx,
+  machineToken: string
+): Promise<{ machine: Doc<"machines">; tenantId: string }> {
+  const tokenHash = hashToken(machineToken)
+
+  const tokenRecord = await ctx.db
+    .query("machineTokens")
+    .withIndex("by_token_hash", (q) => q.eq("tokenHash", tokenHash))
+    .first()
+
+  if (!tokenRecord) {
+    throw new ConvexError("Token de maquina invalido")
+  }
+
+  if (tokenRecord.revoked) {
+    throw new ConvexError("Token de maquina revogado")
+  }
+
+  if (tokenRecord.expiresAt < Date.now()) {
+    throw new ConvexError("Token de maquina expirado")
+  }
+
+  const machine = await ctx.db.get(tokenRecord.machineId)
+  if (!machine) {
+    throw new ConvexError("Maquina nao encontrada")
+  }
+
+  return { machine, tenantId: tokenRecord.tenantId }
+}
+
+// ============================================
+// MUTATIONS (Agente)
+// ============================================
+
+// Agente inicia sessao de chat com cliente
+export const startSession = mutation({
+  args: {
+    ticketId: v.id("tickets"),
+    actorId: v.id("users"),
+  },
+  handler: async (ctx, { ticketId, actorId }) => {
+    const ticket = await ctx.db.get(ticketId)
+    if (!ticket) {
+      throw new ConvexError("Ticket nao encontrado")
+    }
+
+    if (!ticket.machineId) {
+      throw new ConvexError("Este ticket nao esta vinculado a uma maquina")
+    }
+
+    // Verificar se agente tem permissao
+    const agent = await ctx.db.get(actorId)
+    if (!agent || agent.tenantId !== ticket.tenantId) {
+      throw new ConvexError("Acesso negado")
+    }
+
+    const role = agent.role?.toUpperCase() ?? ""
+    if (!["ADMIN", "MANAGER", "AGENT"].includes(role)) {
+      throw new ConvexError("Apenas agentes podem iniciar chat ao vivo")
+    }
+
+    // Verificar se maquina esta online (heartbeat nos ultimos 5 minutos)
+    const machine = await ctx.db.get(ticket.machineId)
+    if (!machine) {
+      throw new ConvexError("Maquina nao encontrada")
+    }
+
+    const fiveMinutesAgo = Date.now() - 5 * 60 * 1000
+    if (!machine.lastHeartbeatAt || machine.lastHeartbeatAt < fiveMinutesAgo) {
+      throw new ConvexError("Maquina offline. A maquina precisa estar online para iniciar o chat.")
+    }
+
+    // Verificar se ja existe sessao ativa para este ticket
+    const existingSession = await ctx.db
+      .query("liveChatSessions")
+      .withIndex("by_ticket", (q) => q.eq("ticketId", ticketId))
+      .filter((q) => q.eq(q.field("status"), "ACTIVE"))
+      .first()
+
+    if (existingSession) {
+      // Retornar sessao existente
+      return { sessionId: existingSession._id, isNew: false }
+    }
+
+    const now = Date.now()
+
+    // Criar nova sessao
+    const sessionId = await ctx.db.insert("liveChatSessions", {
+      tenantId: ticket.tenantId,
+      ticketId,
+      machineId: ticket.machineId,
+      agentId: actorId,
+      agentSnapshot: {
+        name: agent.name,
+        email: agent.email,
+        avatarUrl: agent.avatarUrl,
+      },
+      status: "ACTIVE",
+      startedAt: now,
+      lastActivityAt: now,
+      unreadByMachine: 0,
+      unreadByAgent: 0,
+    })
+
+    // Habilitar chat no ticket se nao estiver
+    if (!ticket.chatEnabled) {
+      await ctx.db.patch(ticketId, { chatEnabled: true })
+    }
+
+    return { sessionId, isNew: true }
+  },
+})
+
+// Agente encerra sessao de chat
+export const endSession = mutation({
+  args: {
+    sessionId: v.id("liveChatSessions"),
+    actorId: v.id("users"),
+  },
+  handler: async (ctx, { sessionId, actorId }) => {
+    const session = await ctx.db.get(sessionId)
+    if (!session) {
+      throw new ConvexError("Sessao nao encontrada")
+    }
+
+    // Verificar permissao
+    const agent = await ctx.db.get(actorId)
+    if (!agent || agent.tenantId !== session.tenantId) {
+      throw new ConvexError("Acesso negado")
+    }
+
+    if (session.status !== "ACTIVE") {
+      throw new ConvexError("Sessao ja encerrada")
+    }
+
+    await ctx.db.patch(sessionId, {
+      status: "ENDED",
+      endedAt: Date.now(),
+    })
+
+    return { ok: true }
+  },
+})
+
+// ============================================
+// MUTATIONS (Maquina/Cliente)
+// ============================================
+
+// Cliente envia mensagem via machineToken
+export const postMachineMessage = mutation({
+  args: {
+    machineToken: v.string(),
+    ticketId: v.id("tickets"),
+    body: v.string(),
+    attachments: v.optional(
+      v.array(
+        v.object({
+          storageId: v.id("_storage"),
+          name: v.string(),
+          size: v.optional(v.number()),
+          type: v.optional(v.string()),
+        })
+      )
+    ),
+  },
+  handler: async (ctx, args) => {
+    const { machine, tenantId } = await validateMachineToken(ctx, args.machineToken)
+
+    const ticket = await ctx.db.get(args.ticketId)
+    if (!ticket || ticket.tenantId !== tenantId) {
+      throw new ConvexError("Ticket nao encontrado")
+    }
+
+    if (ticket.machineId?.toString() !== machine._id.toString()) {
+      throw new ConvexError("Esta maquina nao esta vinculada a este ticket")
+    }
+
+    // Verificar se existe sessao ativa
+    const session = await ctx.db
+      .query("liveChatSessions")
+      .withIndex("by_ticket", (q) => q.eq("ticketId", args.ticketId))
+      .filter((q) => q.eq(q.field("status"), "ACTIVE"))
+      .first()
+
+    if (!session) {
+      throw new ConvexError("Nenhuma sessao de chat ativa para este ticket")
+    }
+
+    // Obter usuario vinculado a maquina (ou usar nome do hostname)
+    let authorId: Id<"users"> | null = machine.assignedUserId ?? null
+    let authorSnapshot = {
+      name: machine.assignedUserName ?? machine.hostname,
+      email: machine.assignedUserEmail ?? undefined,
+      avatarUrl: undefined as string | undefined,
+    }
+
+    // Se nao tem usuario vinculado, buscar por linkedUserIds
+    if (!authorId && machine.linkedUserIds?.length) {
+      authorId = machine.linkedUserIds[0]
+      const linkedUser = await ctx.db.get(authorId)
+      if (linkedUser) {
+        authorSnapshot = {
+          name: linkedUser.name,
+          email: linkedUser.email,
+          avatarUrl: linkedUser.avatarUrl,
+        }
+      }
+    }
+
+    // Se ainda nao tem authorId, criar mensagem sem autor (usando ID do agente temporariamente)
+    if (!authorId) {
+      // Usar o primeiro user do tenant como fallback (requester do ticket)
+      authorId = ticket.requesterId
+    }
+
+    const now = Date.now()
+
+    // Limitar tamanho do body
+    if (args.body.length > 4000) {
+      throw new ConvexError("Mensagem muito longa (maximo 4000 caracteres)")
+    }
+
+    // Inserir mensagem
+    const messageId = await ctx.db.insert("ticketChatMessages", {
+      ticketId: args.ticketId,
+      authorId,
+      authorSnapshot,
+      body: args.body.trim(),
+      attachments: args.attachments,
+      createdAt: now,
+      updatedAt: now,
+      tenantId,
+      companyId: ticket.companyId,
+      readBy: [{ userId: authorId, readAt: now }], // Autor ja leu
+    })
+
+    // Atualizar sessao
+    await ctx.db.patch(session._id, {
+      lastActivityAt: now,
+      unreadByAgent: (session.unreadByAgent ?? 0) + 1,
+    })
+
+    return { messageId, createdAt: now }
+  },
+})
+
+// Cliente marca mensagens como lidas
+export const markMachineMessagesRead = mutation({
+  args: {
+    machineToken: v.string(),
+    ticketId: v.id("tickets"),
+    messageIds: v.array(v.id("ticketChatMessages")),
+  },
+  handler: async (ctx, args) => {
+    const { machine, tenantId } = await validateMachineToken(ctx, args.machineToken)
+
+    const ticket = await ctx.db.get(args.ticketId)
+    if (!ticket || ticket.tenantId !== tenantId) {
+      throw new ConvexError("Ticket nao encontrado")
+    }
+
+    if (ticket.machineId?.toString() !== machine._id.toString()) {
+      throw new ConvexError("Esta maquina nao esta vinculada a este ticket")
+    }
+
+    // Obter userId para marcar leitura
+    const userId = machine.assignedUserId ?? machine.linkedUserIds?.[0] ?? ticket.requesterId
+
+    const now = Date.now()
+    for (const messageId of args.messageIds) {
+      const message = await ctx.db.get(messageId)
+      if (!message || message.ticketId.toString() !== args.ticketId.toString()) {
+        continue
+      }
+
+      const readBy = message.readBy ?? []
+      const alreadyRead = readBy.some((r) => r.userId.toString() === userId.toString())
+      if (!alreadyRead) {
+        await ctx.db.patch(messageId, {
+          readBy: [...readBy, { userId, readAt: now }],
+        })
+      }
+    }
+
+    // Zerar contador de nao lidas pela maquina
+    const session = await ctx.db
+      .query("liveChatSessions")
+      .withIndex("by_ticket", (q) => q.eq("ticketId", args.ticketId))
+      .filter((q) => q.eq(q.field("status"), "ACTIVE"))
+      .first()
+
+    if (session) {
+      await ctx.db.patch(session._id, { unreadByMachine: 0 })
+    }
+
+    return { ok: true }
+  },
+})
+
+// ============================================
+// QUERIES (Maquina/Cliente)
+// ============================================
+
+// Listar sessoes ativas para uma maquina
+export const listMachineSessions = query({
+  args: {
+    machineToken: v.string(),
+  },
+  handler: async (ctx, { machineToken }) => {
+    const { machine, tenantId } = await validateMachineToken(ctx, machineToken)
+
+    const sessions = await ctx.db
+      .query("liveChatSessions")
+      .withIndex("by_machine_status", (q) =>
+        q.eq("machineId", machine._id).eq("status", "ACTIVE")
+      )
+      .collect()
+
+    const result = await Promise.all(
+      sessions.map(async (session) => {
+        const ticket = await ctx.db.get(session.ticketId)
+        return {
+          sessionId: session._id,
+          ticketId: session.ticketId,
+          ticketRef: ticket?.reference ?? 0,
+          ticketSubject: ticket?.subject ?? "",
+          agentName: session.agentSnapshot?.name ?? "Agente",
+          agentEmail: session.agentSnapshot?.email,
+          agentAvatarUrl: session.agentSnapshot?.avatarUrl,
+          unreadCount: session.unreadByMachine ?? 0,
+          lastActivityAt: session.lastActivityAt,
+          startedAt: session.startedAt,
+        }
+      })
+    )
+
+    return result
+  },
+})
+
+// Listar mensagens de um chat para maquina
+export const listMachineMessages = query({
+  args: {
+    machineToken: v.string(),
+    ticketId: v.id("tickets"),
+    since: v.optional(v.number()),
+    limit: v.optional(v.number()),
+  },
+  handler: async (ctx, args) => {
+    const { machine, tenantId } = await validateMachineToken(ctx, args.machineToken)
+
+    const ticket = await ctx.db.get(args.ticketId)
+    if (!ticket || ticket.tenantId !== tenantId) {
+      throw new ConvexError("Ticket nao encontrado")
+    }
+
+    if (ticket.machineId?.toString() !== machine._id.toString()) {
+      throw new ConvexError("Esta maquina nao esta vinculada a este ticket")
+    }
+
+    // Buscar sessao ativa
+    const session = await ctx.db
+      .query("liveChatSessions")
+      .withIndex("by_ticket", (q) => q.eq("ticketId", args.ticketId))
+      .filter((q) => q.eq(q.field("status"), "ACTIVE"))
+      .first()
+
+    if (!session) {
+      return { messages: [], hasSession: false }
+    }
+
+    let query = ctx.db
+      .query("ticketChatMessages")
+      .withIndex("by_ticket_created", (q) => q.eq("ticketId", args.ticketId))
+
+    const allMessages = await query.collect()
+
+    // Filtrar por since se fornecido
+    let messages = args.since
+      ? allMessages.filter((m) => m.createdAt > args.since!)
+      : allMessages
+
+    // Aplicar limite
+    const limit = args.limit ?? 50
+    messages = messages.slice(-limit)
+
+    // Obter userId da maquina para verificar se eh autor
+    const machineUserId = machine.assignedUserId ?? machine.linkedUserIds?.[0]
+
+    const result = messages.map((msg) => {
+      const isFromMachine = machineUserId
+        ? msg.authorId.toString() === machineUserId.toString()
+        : false
+
+      return {
+        id: msg._id,
+        body: msg.body,
+        authorName: msg.authorSnapshot?.name ?? "Usuario",
+        authorAvatarUrl: msg.authorSnapshot?.avatarUrl,
+        isFromMachine,
+        createdAt: msg.createdAt,
+        attachments: msg.attachments ?? [],
+      }
+    })
+
+    return { messages: result, hasSession: true }
+  },
+})
+
+// Polling leve para verificar updates
+export const checkMachineUpdates = query({
+  args: {
+    machineToken: v.string(),
+    lastCheckedAt: v.optional(v.number()),
+  },
+  handler: async (ctx, args) => {
+    const { machine } = await validateMachineToken(ctx, args.machineToken)
+
+    const sessions = await ctx.db
+      .query("liveChatSessions")
+      .withIndex("by_machine_status", (q) =>
+        q.eq("machineId", machine._id).eq("status", "ACTIVE")
+      )
+      .collect()
+
+    if (sessions.length === 0) {
+      return {
+        hasActiveSessions: false,
+        sessions: [],
+        totalUnread: 0,
+      }
+    }
+
+    const sessionSummaries = sessions.map((s) => ({
+      ticketId: s.ticketId,
+      unreadCount: s.unreadByMachine ?? 0,
+      lastActivityAt: s.lastActivityAt,
+    }))
+
+    const totalUnread = sessionSummaries.reduce((sum, s) => sum + s.unreadCount, 0)
+
+    return {
+      hasActiveSessions: true,
+      sessions: sessionSummaries,
+      totalUnread,
+    }
+  },
+})
+
+// ============================================
+// QUERIES (Agente)
+// ============================================
+
+// Listar sessao ativa de um ticket
+export const getTicketSession = query({
+  args: {
+    ticketId: v.id("tickets"),
+    viewerId: v.id("users"),
+  },
+  handler: async (ctx, { ticketId, viewerId }) => {
+    const ticket = await ctx.db.get(ticketId)
+    if (!ticket) {
+      return null
+    }
+
+    const viewer = await ctx.db.get(viewerId)
+    if (!viewer || viewer.tenantId !== ticket.tenantId) {
+      return null
+    }
+
+    const session = await ctx.db
+      .query("liveChatSessions")
+      .withIndex("by_ticket", (q) => q.eq("ticketId", ticketId))
+      .filter((q) => q.eq(q.field("status"), "ACTIVE"))
+      .first()
+
+    if (!session) {
+      return null
+    }
+
+    // Verificar se maquina esta online
+    const machine = ticket.machineId ? await ctx.db.get(ticket.machineId) : null
+    const fiveMinutesAgo = Date.now() - 5 * 60 * 1000
+    const machineOnline = machine?.lastHeartbeatAt && machine.lastHeartbeatAt > fiveMinutesAgo
+
+    return {
+      sessionId: session._id,
+      agentId: session.agentId,
+      agentName: session.agentSnapshot?.name,
+      startedAt: session.startedAt,
+      lastActivityAt: session.lastActivityAt,
+      unreadByAgent: session.unreadByAgent ?? 0,
+      machineOnline: Boolean(machineOnline),
+    }
+  },
+})
--- a/convex/machines.ts
+++ b/convex/machines.ts
@ -1002,6 +1002,13 @@ export const listByTenant = query({
          })
        ).then((arr) => arr.filter(Boolean) as Array<{ id: string; email: string; name: string }>)

+        // ticket count
+        const ticketCount = await ctx.db
+          .query("tickets")
+          .withIndex("by_tenant_machine", (q) => q.eq("tenantId", tenantId).eq("machineId", machine._id))
+          .collect()
+          .then((tickets) => tickets.length)
+
        const companyFromId = machine.companyId ? companyById.get(machine.companyId) ?? null : null
        const companyFromSlug = machine.companySlug ? companyBySlug.get(machine.companySlug) ?? null : null
        const resolvedCompany = companyFromId ?? companyFromSlug
@ -1054,6 +1061,7 @@ export const listByTenant = query({
          usbPolicy: machine.usbPolicy ?? null,
          usbPolicyStatus: machine.usbPolicyStatus ?? null,
          usbPolicyError: machine.usbPolicyError ?? null,
+          ticketCount,
        }
      })
    )
--- a/convex/schema.ts
+++ b/convex/schema.ts
@ -410,6 +410,31 @@ export default defineSchema({
    .index("by_ticket_created", ["ticketId", "createdAt"])
    .index("by_tenant_created", ["tenantId", "createdAt"]),

+  // Sessoes de chat ao vivo entre agente (dashboard) e cliente (Raven desktop)
+  liveChatSessions: defineTable({
+    tenantId: v.string(),
+    ticketId: v.id("tickets"),
+    machineId: v.id("machines"),
+    agentId: v.id("users"),
+    agentSnapshot: v.optional(
+      v.object({
+        name: v.string(),
+        email: v.optional(v.string()),
+        avatarUrl: v.optional(v.string()),
+      })
+    ),
+    status: v.string(), // ACTIVE | ENDED
+    startedAt: v.number(),
+    endedAt: v.optional(v.number()),
+    lastActivityAt: v.number(),
+    unreadByMachine: v.optional(v.number()),
+    unreadByAgent: v.optional(v.number()),
+  })
+    .index("by_ticket", ["ticketId"])
+    .index("by_machine_status", ["machineId", "status"])
+    .index("by_tenant_machine", ["tenantId", "machineId"])
+    .index("by_tenant_status", ["tenantId", "status"]),
+
  commentTemplates: defineTable({
    tenantId: v.string(),
    kind: v.optional(v.string()),
--- a/convex/tickets.ts
+++ b/convex/tickets.ts
@ -2956,12 +2956,59 @@ export const listChatMessages = query({
      .withIndex("by_ticket_created", (q) => q.eq("ticketId", ticketId))
      .collect()

+    // Verificar maquina e sessao de chat ao vivo
+    let liveChat: {
+      hasMachine: boolean
+      machineOnline: boolean
+      machineHostname: string | null
+      activeSession: {
+        sessionId: Id<"liveChatSessions">
+        agentId: Id<"users">
+        agentName: string | null
+        startedAt: number
+        unreadByAgent: number
+      } | null
+    } = {
+      hasMachine: false,
+      machineOnline: false,
+      machineHostname: null,
+      activeSession: null,
+    }
+
+    if (ticketDoc.machineId) {
+      const machine = await ctx.db.get(ticketDoc.machineId)
+      if (machine) {
+        const fiveMinutesAgo = now - 5 * 60 * 1000
+        liveChat.hasMachine = true
+        liveChat.machineOnline = Boolean(machine.lastHeartbeatAt && machine.lastHeartbeatAt > fiveMinutesAgo)
+        liveChat.machineHostname = machine.hostname
+
+        // Verificar sessao ativa
+        const activeSession = await ctx.db
+          .query("liveChatSessions")
+          .withIndex("by_ticket", (q) => q.eq("ticketId", ticketId))
+          .filter((q) => q.eq(q.field("status"), "ACTIVE"))
+          .first()
+
+        if (activeSession) {
+          liveChat.activeSession = {
+            sessionId: activeSession._id,
+            agentId: activeSession.agentId,
+            agentName: activeSession.agentSnapshot?.name ?? null,
+            startedAt: activeSession.startedAt,
+            unreadByAgent: activeSession.unreadByAgent ?? 0,
+          }
+        }
+      }
+    }
+
    return {
      ticketId: String(ticketId),
      chatEnabled,
      status,
      canPost,
      reopenDeadline: ticketDoc.reopenDeadline ?? null,
+      liveChat,
      messages: messages
        .sort((a, b) => a.createdAt - b.createdAt)
        .map((message) => ({
--- a/src/app/api/machines/chat/messages/route.ts
+++ b/src/app/api/machines/chat/messages/route.ts
@ -0,0 +1,126 @@
+import { z } from "zod"
+
+import { api } from "@/convex/_generated/api"
+import type { Id } from "@/convex/_generated/dataModel"
+import { createCorsPreflight, jsonWithCors } from "@/server/cors"
+import { createConvexClient, ConvexConfigurationError } from "@/server/convex-client"
+
+const getMessagesSchema = z.object({
+  machineToken: z.string().min(1),
+  ticketId: z.string().min(1),
+  since: z.number().optional(),
+  limit: z.number().optional(),
+})
+
+const postMessageSchema = z.object({
+  machineToken: z.string().min(1),
+  ticketId: z.string().min(1),
+  body: z.string().min(1).max(4000),
+  attachments: z
+    .array(
+      z.object({
+        storageId: z.string(),
+        name: z.string(),
+        size: z.number().optional(),
+        type: z.string().optional(),
+      })
+    )
+    .optional(),
+})
+
+const CORS_METHODS = "POST, OPTIONS"
+
+export async function OPTIONS(request: Request) {
+  return createCorsPreflight(request.headers.get("origin"), CORS_METHODS)
+}
+
+// POST /api/machines/chat/messages
+// action=list: Lista mensagens de um chat
+// action=send: Envia nova mensagem
+export async function POST(request: Request) {
+  const origin = request.headers.get("origin")
+
+  let client
+  try {
+    client = createConvexClient()
+  } catch (error) {
+    if (error instanceof ConvexConfigurationError) {
+      return jsonWithCors({ error: error.message }, 500, origin, CORS_METHODS)
+    }
+    throw error
+  }
+
+  let raw
+  try {
+    raw = await request.json()
+  } catch {
+    return jsonWithCors({ error: "JSON invalido" }, 400, origin, CORS_METHODS)
+  }
+
+  const action = raw.action ?? "list"
+
+  if (action === "list") {
+    let payload
+    try {
+      payload = getMessagesSchema.parse(raw)
+    } catch (error) {
+      return jsonWithCors(
+        { error: "Payload invalido", details: error instanceof Error ? error.message : String(error) },
+        400,
+        origin,
+        CORS_METHODS
+      )
+    }
+
+    try {
+      const result = await client.query(api.liveChat.listMachineMessages, {
+        machineToken: payload.machineToken,
+        ticketId: payload.ticketId as Id<"tickets">,
+        since: payload.since,
+        limit: payload.limit,
+      })
+      return jsonWithCors(result, 200, origin, CORS_METHODS)
+    } catch (error) {
+      console.error("[machines.chat.messages] Falha ao listar mensagens", error)
+      const details = error instanceof Error ? error.message : String(error)
+      return jsonWithCors({ error: "Falha ao listar mensagens", details }, 500, origin, CORS_METHODS)
+    }
+  }
+
+  if (action === "send") {
+    let payload
+    try {
+      payload = postMessageSchema.parse(raw)
+    } catch (error) {
+      return jsonWithCors(
+        { error: "Payload invalido", details: error instanceof Error ? error.message : String(error) },
+        400,
+        origin,
+        CORS_METHODS
+      )
+    }
+
+    try {
+      const result = await client.mutation(api.liveChat.postMachineMessage, {
+        machineToken: payload.machineToken,
+        ticketId: payload.ticketId as Id<"tickets">,
+        body: payload.body,
+        attachments: payload.attachments as
+          | Array<{
+              storageId: Id<"_storage">
+              name: string
+              size?: number
+              type?: string
+            }>
+          | undefined,
+      })
+      return jsonWithCors(result, 200, origin, CORS_METHODS)
+    } catch (error) {
+      console.error("[machines.chat.messages] Falha ao enviar mensagem", error)
+      const details = error instanceof Error ? error.message : String(error)
+      return jsonWithCors({ error: "Falha ao enviar mensagem", details }, 500, origin, CORS_METHODS)
+    }
+  }
+
+  return jsonWithCors({ error: "Acao invalida" }, 400, origin, CORS_METHODS)
+}
--- a/src/app/api/machines/chat/poll/route.ts
+++ b/src/app/api/machines/chat/poll/route.ts
@ -0,0 +1,57 @@
+import { z } from "zod"
+
+import { api } from "@/convex/_generated/api"
+import { createCorsPreflight, jsonWithCors } from "@/server/cors"
+import { createConvexClient, ConvexConfigurationError } from "@/server/convex-client"
+
+const pollSchema = z.object({
+  machineToken: z.string().min(1),
+  lastCheckedAt: z.number().optional(),
+})
+
+const CORS_METHODS = "POST, OPTIONS"
+
+export async function OPTIONS(request: Request) {
+  return createCorsPreflight(request.headers.get("origin"), CORS_METHODS)
+}
+
+// POST /api/machines/chat/poll
+// Endpoint leve para polling de atualizacoes de chat
+export async function POST(request: Request) {
+  const origin = request.headers.get("origin")
+
+  let client
+  try {
+    client = createConvexClient()
+  } catch (error) {
+    if (error instanceof ConvexConfigurationError) {
+      return jsonWithCors({ error: error.message }, 500, origin, CORS_METHODS)
+    }
+    throw error
+  }
+
+  let payload
+  try {
+    const raw = await request.json()
+    payload = pollSchema.parse(raw)
+  } catch (error) {
+    return jsonWithCors(
+      { error: "Payload invalido", details: error instanceof Error ? error.message : String(error) },
+      400,
+      origin,
+      CORS_METHODS
+    )
+  }
+
+  try {
+    const result = await client.query(api.liveChat.checkMachineUpdates, {
+      machineToken: payload.machineToken,
+      lastCheckedAt: payload.lastCheckedAt,
+    })
+    return jsonWithCors(result, 200, origin, CORS_METHODS)
+  } catch (error) {
+    console.error("[machines.chat.poll] Falha ao verificar atualizacoes", error)
+    const details = error instanceof Error ? error.message : String(error)
+    return jsonWithCors({ error: "Falha ao verificar atualizacoes", details }, 500, origin, CORS_METHODS)
+  }
+}
--- a/src/app/api/machines/chat/sessions/route.ts
+++ b/src/app/api/machines/chat/sessions/route.ts
@ -0,0 +1,55 @@
+import { z } from "zod"
+
+import { api } from "@/convex/_generated/api"
+import { createCorsPreflight, jsonWithCors } from "@/server/cors"
+import { createConvexClient, ConvexConfigurationError } from "@/server/convex-client"
+
+const sessionsSchema = z.object({
+  machineToken: z.string().min(1),
+})
+
+const CORS_METHODS = "POST, OPTIONS"
+
+export async function OPTIONS(request: Request) {
+  return createCorsPreflight(request.headers.get("origin"), CORS_METHODS)
+}
+
+// POST /api/machines/chat/sessions
+// Lista sessoes de chat ativas para a maquina
+export async function POST(request: Request) {
+  const origin = request.headers.get("origin")
+
+  let client
+  try {
+    client = createConvexClient()
+  } catch (error) {
+    if (error instanceof ConvexConfigurationError) {
+      return jsonWithCors({ error: error.message }, 500, origin, CORS_METHODS)
+    }
+    throw error
+  }
+
+  let payload
+  try {
+    const raw = await request.json()
+    payload = sessionsSchema.parse(raw)
+  } catch (error) {
+    return jsonWithCors(
+      { error: "Payload invalido", details: error instanceof Error ? error.message : String(error) },
+      400,
+      origin,
+      CORS_METHODS
+    )
+  }
+
+  try {
+    const sessions = await client.query(api.liveChat.listMachineSessions, {
+      machineToken: payload.machineToken,
+    })
+    return jsonWithCors({ sessions }, 200, origin, CORS_METHODS)
+  } catch (error) {
+    console.error("[machines.chat.sessions] Falha ao listar sessoes", error)
+    const details = error instanceof Error ? error.message : String(error)
+    return jsonWithCors({ error: "Falha ao listar sessoes", details }, 500, origin, CORS_METHODS)
+  }
+}
--- a/src/components/tickets/ticket-chat-panel.tsx
+++ b/src/components/tickets/ticket-chat-panel.tsx
@ -13,6 +13,7 @@ import { cn } from "@/lib/utils"
 import { toast } from "sonner"
 import { formatDistanceToNowStrict } from "date-fns"
 import { ptBR } from "date-fns/locale"
+import { MessageCircle, MonitorSmartphone, WifiOff, X } from "lucide-react"

 const MAX_MESSAGE_LENGTH = 4000

@ -41,6 +42,18 @@ export function TicketChatPanel({ ticketId }: TicketChatPanelProps) {
        status: string
        canPost: boolean
        reopenDeadline: number | null
+        liveChat: {
+          hasMachine: boolean
+          machineOnline: boolean
+          machineHostname: string | null
+          activeSession: {
+            sessionId: Id<"liveChatSessions">
+            agentId: Id<"users">
+            agentName: string | null
+            startedAt: number
+            unreadByAgent: number
+          } | null
+        }
        messages: Array<{
          id: Id<"ticketChatMessages">
          body: string
@ -58,9 +71,13 @@ export function TicketChatPanel({ ticketId }: TicketChatPanelProps) {

  const markChatRead = useMutation(api.tickets.markChatRead)
  const postChatMessage = useMutation(api.tickets.postChatMessage)
+  const startLiveChat = useMutation(api.liveChat.startSession)
+  const endLiveChat = useMutation(api.liveChat.endSession)
  const messagesEndRef = useRef<HTMLDivElement | null>(null)
  const [draft, setDraft] = useState("")
  const [isSending, setIsSending] = useState(false)
+  const [isStartingChat, setIsStartingChat] = useState(false)
+  const [isEndingChat, setIsEndingChat] = useState(false)

  const messages = chat?.messages ?? []
  const canPost = Boolean(chat?.canPost && viewerId)
@ -96,10 +113,50 @@ export function TicketChatPanel({ ticketId }: TicketChatPanelProps) {
    return null
  }, [canPost, chatEnabled])

+  const handleStartLiveChat = async () => {
+    if (!viewerId) return
+    setIsStartingChat(true)
+    toast.dismiss("live-chat")
+    try {
+      const result = await startLiveChat({
+        ticketId: ticketId as Id<"tickets">,
+        actorId: viewerId as Id<"users">,
+      })
+      if (result.isNew) {
+        toast.success("Chat ao vivo iniciado! O cliente sera notificado.", { id: "live-chat" })
+      } else {
+        toast.info("Ja existe uma sessao de chat ativa.", { id: "live-chat" })
+      }
+    } catch (error: unknown) {
+      const message = error instanceof Error ? error.message : "Nao foi possivel iniciar o chat"
+      toast.error(message, { id: "live-chat" })
+    } finally {
+      setIsStartingChat(false)
+    }
+  }
+
+  const handleEndLiveChat = async () => {
+    if (!viewerId || !chat?.liveChat?.activeSession) return
+    setIsEndingChat(true)
+    toast.dismiss("live-chat")
+    try {
+      await endLiveChat({
+        sessionId: chat.liveChat.activeSession.sessionId,
+        actorId: viewerId as Id<"users">,
+      })
+      toast.success("Chat ao vivo encerrado.", { id: "live-chat" })
+    } catch (error: unknown) {
+      const message = error instanceof Error ? error.message : "Nao foi possivel encerrar o chat"
+      toast.error(message, { id: "live-chat" })
+    } finally {
+      setIsEndingChat(false)
+    }
+  }
+
  const handleSend = async () => {
    if (!viewerId || !canPost || draft.trim().length === 0) return
    if (draft.length > MAX_MESSAGE_LENGTH) {
-      toast.error(`Mensagem muito longa (máx. ${MAX_MESSAGE_LENGTH} caracteres).`)
+      toast.error(`Mensagem muito longa (max. ${MAX_MESSAGE_LENGTH} caracteres).`)
      return
    }
    setIsSending(true)
@ -115,7 +172,7 @@ export function TicketChatPanel({ ticketId }: TicketChatPanelProps) {
      toast.success("Mensagem enviada!", { id: "ticket-chat" })
    } catch (error) {
      console.error(error)
-      toast.error("Não foi possível enviar a mensagem.", { id: "ticket-chat" })
+      toast.error("Nao foi possivel enviar a mensagem.", { id: "ticket-chat" })
    } finally {
      setIsSending(false)
    }
@ -125,15 +182,85 @@ export function TicketChatPanel({ ticketId }: TicketChatPanelProps) {
    return null
  }

+  const liveChat = chat?.liveChat
+  const hasActiveSession = Boolean(liveChat?.activeSession)
+
  return (
    <Card className="border-slate-200">
      <CardHeader className="flex flex-row items-center justify-between gap-2">
-        <CardTitle className="text-base font-semibold text-neutral-800">Chat do atendimento</CardTitle>
-        {!chatEnabled ? (
-          <span className="text-xs font-medium text-neutral-500">Chat desativado</span>
-        ) : null}
+        <div className="flex items-center gap-2">
+          <CardTitle className="text-base font-semibold text-neutral-800">Chat do atendimento</CardTitle>
+          {liveChat?.hasMachine && (
+            <div className="flex items-center gap-1.5">
+              {liveChat.machineOnline ? (
+                <span className="flex items-center gap-1 rounded-full bg-green-100 px-2 py-0.5 text-xs font-medium text-green-700">
+                  <span className="size-1.5 rounded-full bg-green-500" />
+                  Online
+                </span>
+              ) : (
+                <span className="flex items-center gap-1 rounded-full bg-neutral-100 px-2 py-0.5 text-xs font-medium text-neutral-500">
+                  <WifiOff className="size-3" />
+                  Offline
+                </span>
+              )}
+            </div>
+          )}
+        </div>
+        <div className="flex items-center gap-2">
+          {!chatEnabled ? (
+            <span className="text-xs font-medium text-neutral-500">Chat desativado</span>
+          ) : null}
+          {liveChat?.hasMachine && (
+            <>
+              {hasActiveSession ? (
+                <Button
+                  type="button"
+                  variant="outline"
+                  size="sm"
+                  onClick={handleEndLiveChat}
+                  disabled={isEndingChat}
+                  className="gap-1.5 border-red-200 text-red-600 hover:bg-red-50 hover:text-red-700"
+                >
+                  {isEndingChat ? <Spinner className="size-3" /> : <X className="size-3" />}
+                  Encerrar Chat
+                </Button>
+              ) : (
+                <Button
+                  type="button"
+                  variant="outline"
+                  size="sm"
+                  onClick={handleStartLiveChat}
+                  disabled={isStartingChat || !liveChat.machineOnline}
+                  className="gap-1.5"
+                  title={!liveChat.machineOnline ? "A maquina precisa estar online para iniciar o chat" : undefined}
+                >
+                  {isStartingChat ? <Spinner className="size-3" /> : <MessageCircle className="size-3" />}
+                  Iniciar Chat
+                </Button>
+              )}
+            </>
+          )}
+        </div>
      </CardHeader>
      <CardContent className="space-y-4">
+        {hasActiveSession && liveChat?.activeSession && (
+          <div className="flex items-center gap-2 rounded-lg border border-green-200 bg-green-50 px-3 py-2">
+            <div className="flex size-6 items-center justify-center rounded-full bg-green-100">
+              <MessageCircle className="size-3.5 text-green-600" />
+            </div>
+            <div className="flex-1">
+              <p className="text-sm font-medium text-green-800">Chat ao vivo ativo</p>
+              <p className="text-xs text-green-600">
+                Iniciado por {liveChat.activeSession.agentName ?? "agente"} {formatRelative(liveChat.activeSession.startedAt)}
+                {liveChat.activeSession.unreadByAgent > 0 && (
+                  <span className="ml-2 rounded-full bg-green-600 px-1.5 py-0.5 text-white">
+                    {liveChat.activeSession.unreadByAgent} nao lidas
+                  </span>
+                )}
+              </p>
+            </div>
+          </div>
+        )}
        {chat === undefined ? (
          <div className="flex items-center justify-center gap-2 rounded-lg border border-dashed border-slate-200 py-6 text-sm text-neutral-500">
            <Spinner className="size-4" /> Carregando mensagens...